Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 2)

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

This is valuable _________  chair which dates back to the eighteeth century

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

“What’s the matter? You don’t look very well.”   – “I feel a little _____________.”

Mark the letter A, B, C, or D to indicate the word that differs from the rest in the position of the main stress in each of the following questions

There's a good film  _______ town

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Now that Susan has moved to the country, her visits to see in the city are________

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

It is a ___________  .

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Where is he? He should __________ at home hours ago

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

I never read ________ newspapers during the week, but I buy ______Observer every Sunday  and I read it in ________bed.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

_______ imaginative stories about the origin of the game of chess.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

In a formal interview, it is essential to maintain good eye _______ with the interviewers.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Oil shale is a soft, fine-grained sedimentary rock _______ oil and natural gas are obtained.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

The government was finally ______ by a minor scandal.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Ann: “Do you need any help?”            Kate: “______.”

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Unfortunately, the company closed down because it couldn’t keep  ________ with rapidly changing technology

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

I ______ with my aunt when I am on holiday inHo Chi Minh Citynext month.  

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Never before _______ such a wonderful child

Mark the letter A,B,C or D on your sheet to indicate the word(s) SIMILAR in meaning to the underlined words in each of the following sentences

I hope to have the privilege of working with them again

Mark the letter A,B,C or D on your sheet to indicate the word(s) SIMILAR in meaning to the underlined words in each of the following sentences

Many scientists agree that global warming poses great threats to all species on Earth.

Mark the letter A,B,C or D on your sheet to indicate the word(s) SIMILAR in meaning to the underlined words in each of the following sentences

The works of such men as the English philosophers John Locke and Thomas Hobbes helped pave the way for academic freedom in the modern sense

Mark the letter A, B, C, or D on your answer sheet to indicate the word (s) OPPOSITE in meaning to the underlined word(s) in each of the following sentences

Population growth rates vary among regions and even among countries within the same region.

Mark the letter A, B, C, or D on your answer sheet to indicate the word (s) OPPOSITE in meaning to the underlined word(s) in each of the following sentences

In some countries, the disease burden could be prevented through environmental improvements.

Choose the option among A, B, C, D which needs correcting to make a complete sentence

The camp on the inhospitable, (A) mosquito-infested banks of the River Sekonyer, was (B) set up to track the primates and (C) learn from their habitat, (D) diet and behavior

Choose the option among A, B, C, D which needs correcting to make a complete sentence

(A) After writing it, the essay must (B) be duplicated by the student himself and handed (C) into the department secretary before the end of the month.

Choose the option among A, B, C, D which needs correcting to make a complete sentence

Professor Jones (A) said  that a good way (B) to improve your language (C) are learning (D) to practise it.

Choose the option among A, B, C, D which needs correcting to make a complete sentence

Abraham Lincoln's (A) boyhood home resembled (B) that of many other mid-western pioneers with its (C) dirt floor, sleeping loft, and (D) crude fireplace.

Choose the option among A, B, C, D which needs correcting to make a complete sentence

A (A) smile can be observed, described, and reliably (B) identify; it can also be elicited and manipulated under (C) experimental (D) conditions

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

What aspect of art deco does the passage mainly discuss?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

The word “encompass” in line 1 is closest in meaning to ___________ .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

The phrase “The first” in line 2 refers to __________

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

In line 8, the author mentions “an ancient Mesopotamian temple tower” in order to __________ .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

The streamlined moderne style is characterized by all of the following EXCEPT ___________ .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

The phrase “came to the forefront” in line 15 is closest in meaning to _________ .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

According to the passage, which of the following statements most accurately describes the relationship between art deco and art nouveau?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

According to the passage, a building having an especially ornate appearance would most probably have been designed in the style of ____________  .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

According to the passage, which of the following design trends is known by more than one name ?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

The term “art deco” has come to encompass three distinct but related design trends of the 1920’s and 1930’s. The first was what is frequently referred to as “zigzag moderne” – the exotically ornamental style of such skyscrapers as the Chrysler Building in New York City and related structures such as the Paramount Theater in Oakland, California. The word “zigzag” alludes to the geometric and stylized ornamentation of zigzags, angular patterns, abstracted plant and animal motifs, sunbursts, astrological imagery, formalized fountains, and related themes that were applied in mosaic relief and mural form to the exterior and interior of the buildings. Many of these buildings were shaped in the ziggurat form, a design resembling an ancient Mesopotamian temple tower that recedes in progressively smaller stages to the summit, creating a staircase-like effect.

            The second manifestation of art deco was the 1930’s “streamlined moderne” style—a Futuristic-looking aerodynamic style of rounded corners and horizontal bands known as “speed stripes.” In architecture, these elements were frequently accompanied by round windows, extensive use of glass block, and flat rooftops.

            The third style, referred to as “international stripped classicism” also came to the forefront during the Depression, a period of severe economic difficult in the 1930’s. This was a more conservative style, blending a simplified modernistic style with a more austere form of geometric and stylized relief sculpture and other ornament, including interior murals. May buildings in this style were erected nationwide through government programs during the Depression .

            Although art deco in its many forms was largely perceived as thoroughly modern, it was strongly influenced by the decorative arts movements that immediately preceded it. For example, like “art nouveau” (1890-1910), art deco also used plant motifs, but regularized the forms into abstracted repetitive patterns rather than presenting them as flowing, asymmetrical foliage, Like the Viennese craftspeople of the Wiener Werkstatte, art deco designers worked with exotic materials, geometricized shapes, and colorfully ornate patterns. Furthermore, like the artisans of the Arts and Crafts Movement inEnglandand theUnited States, art deep practitioners considered it their mission to transform the domestic environment through well-designed furniture and household accessories.

The passage is primarily developed as _____________

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 45

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 46

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 47

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 48

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 49

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 50

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 51

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 52

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 53

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. Fill in the appropriate word in question 54

           British families started  going on holiday to the seaside around the middle of the 19^th century. The invention of the railways (45) ____ this possible. The first holidaymakers were quite rich and went for their health and education. The seaside was a place to be (46) ____  of illness, and doctors recommended bathing in the sea and drinking sea water. Also to (47) ____ their knowledge, families attended concerts and read books from the library.

          At that time, ordinary working people had very little time (48) ____ work. However, in 1871, the government introduced four ‘Banking Holiday’ - national holiday days. This (49) ____ people to have a day or two out, which now and then gave them a taste for leisure and the seaside. At first, they went on day-trips, taking (50) ____ of special cheap tickets on the railways. By the 1880s, rising incomes (51) ____ that many ordinary workers and their families could have a week’s holiday at the seaside. Rail fares were reduced and cheap hotels were built to (52) ____ them. Holidaymakers enjoyed being idle, sitting on the beach, bathing in the sea, and eating ice-cream. Cheap entertainment was (53) ____ offer and holidaymakers went to have fun.

     Today the English seaside (54) ____ popular, with more than 18 million holidays taken there each year.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

What does the passage mainly discuss?

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

The word "adversely" in the first paragraph is closest in meaning to _______.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

It can be inferred from the first paragraph that _______.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

The word "These" in the second paragraph is closest in meaning to_.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

For which of the following reasons can natural pollutants play an important role in controlling air pollution?

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

According to the passage, human-generated air pollution in localized regions _______.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

The word "localized" in the third paragraph is closest in meaning to _______.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

According to the passage, the numerical value of the concentration level of a substance is only useful if _______.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

The word "detectable" in the third paragraph is closest in meaning to_________.

Read the following passage and  mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

      An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

      Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

      However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

Which of the following is best supported by the passage?