50 câu hỏi
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions
celebrate
confidence
effective
handicapped
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions
success
access
problem
culture
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
You didn't pay enough attention. Now you ask such a question
Had you paid enough attention, you wouldn't have asked such a question now
Had it not been for your attention, you wouldn't ask such a question now
Had you not paid enough attention, you wouldn't ask such a question now
Had it not been for your inattention, you wouldn't ask such a question now
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
He is a rich man. However, he leads a simple life
If he were a rich man, he would lead a simple life
Rich as he is, he leads a simple life
As he is rich, he leads a simple life.
He leads a simple life in case he is a rich man
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
The lion has long been a symbol of strength, power and its being cruel.
has long been
symbol
strength
its being cruel
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
The first half of the game was pretty boring because the players did not take enough effort
The
pretty
because
take
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
Aristotle believed that everything in the universe were composed of four basic elements: earth, water, air, and fire
believed
were
basic
fire
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
She usually spends one hour going shopping every week
She usually goes to shopping one hour every week
It usually takes her one hour to go shopping every week
It usually takes her one hour going shopping every week
It usually takes her one hour to shop on her car every week
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
"Why don't you try using a screw-driver?” he said to me
He ordered me to try using a screw-driver
He said that using a screw-driver didn't work
He suggested to use a screw-driver
He suggested that I try using a screw-driver
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
We understand that Ben wants to train to be a pilot
It is understood that Ben wants to train to be a pilot
It is to understand that Ben wants to train to be a pilot
It understands that Ben wants to train to be a pilot
Ben understands that he wants to train to be a pilot
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
hoped
gathered
remained
received
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
feature
measure
feather
pleasure
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
What ________ at 9 o'clock last night? I phoned you but couldn't get through to you
did you do
were you doing
would you do
had you done
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
The committee plans to ________ again in about six months
conduct
condense
contest
convene
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
We've been together through ________ in our friendship, and we won't desert each other now
bad and good
thick and thin
odds and ends
high and low
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Now I do apologise for what I said about you. I know I shouldn't ________ that.
have said
tell
say
have spoken
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Language is so ________ woven into human experience that it is scarcely possible to imagine life without it
tightly
loosely
rigidly
stiffly
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
I did not approve ________ people throwing trash on the streets and in public places
with
on
at
of
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Having been found guilty of theft, ________ to find a job in his chosen field as an accountant
was it difficult for Henry Jones
Henry Jones found it difficult
did Henry Jones found difficult
it was found by Henry Jones difficult
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
The more she practises, ________ she becomes
the more confident
the most confident
the greater confidence
the more confidently
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
The man was wearing a ________ shirt
fashionable cotton blue
blue cotton fashionable
cotton fashionable blue
fashionable blue cotton
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
We decided ________ at home this afternoon
staying
stay
having stayed
to stay
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Meteorologists use special________ to measure changes in the weather.
instrument
instruments
instrumental
instrumentation
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
When they give you the contract, please ________ the document before you sign it
go over
sum up
see to
check in
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Everyone in both cars was injured in the accident last night, ________?
weren't they
wasn't he
was he
were they
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
In Korea, all men have to ________ military service for a period of time in their lives
do
make
have
take
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
My father still seems optimistic ________ many difficulties he has to overcome
though
whatever
despite
but
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges
Sophia and Kyoko talked to each other about how to learn English.
- Sophia: "How did you learn English?"
- Kyoko: “________________.”
I picked it up from movies and songs
I found it very difficult when I started learning it
I've learned English for about 10 years
I liked learning English very much
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges
Burt and Kevin talked about Burt's absence from the class.
- Burt: "Why didn't you show up for class this morning?"
- Kevin: “__________. You know, I live far from the school."
It's a fine day
My car broke down
It's not the case
That's good
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
A person who suffers from stage fright is easily intimidated by a large audience
improved
encouraged
applauded
frightened
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
The Native Americans would not allow anyone to trespass on their sacred burial ground
holy
public
private
secret
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 questions
This is a difficult topic. Please, explain it in plain language
easy
complicated
different
detailed
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 questions
The captain ordered his troops to advance when they were attacked by the enemy
retreat
conquer
gather
remain
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word(s) to each of the questions.
You get off your plane and make your way to the Baggage Reclaim area. After quite some time spent waiting, there is no sign of your bags and you begin to consider the possibility that they may have gone (34) ________. What should you do?
Firstly, don't panic. The most likely (35) ________ is that your bags simply didn't make it onto the flight, perhaps because they were mislaid at the departure airport, or perhaps because the aircraft had already (36) ________ its weight allowance. If they fail to appear on the carousel, report the loss before you leave the baggage hall and go through customs. Recovering your luggage should be no problems, (37) ________ you've kept hold of your baggage checks – those little barcodes stuck to the back of your tickets at check-in.
Go to the handling agent's desk and complete a Property Irregularity Report (PIR) form, (38) ________ describes the checked bag and its contents. Then, ask the baggage-service manager for a contact telephone number and confirm that your bags will be forwarded to your final destination
lost
missing
absent
misplaced
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word(s) to each of the questions. You get off your plane and make your way to the Baggage Reclaim area. After quite some time spent waiting, there is no sign of your bags and you begin to consider the possibility that they may have gone (34) ________. What should you do? Firstly, don't panic. The most likely (35) ________ is that your bags simply didn't make it onto the flight, perhaps because they were mislaid at the departure airport, or perhaps because the aircraft had already (36) ________ its weight allowance. If they fail to appear on the carousel, report the loss before you leave the baggage hall and go through customs. Recovering your luggage should be no problems, (37) ________ you've kept hold of your baggage checks – those little barcodes stuck to the back of your tickets at check-in. Go to the handling agent's desk and complete a Property Irregularity Report (PIR) form, (38) ________ describes the checked bag and its contents. Then, ask the baggage-service manager for a contact telephone number and confirm that your bags will be forwarded to your final destination
example
understanding
clarification
explanation
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word(s) to each of the questions. You get off your plane and make your way to the Baggage Reclaim area. After quite some time spent waiting, there is no sign of your bags and you begin to consider the possibility that they may have gone (34) ________. What should you do? Firstly, don't panic. The most likely (35) ________ is that your bags simply didn't make it onto the flight, perhaps because they were mislaid at the departure airport, or perhaps because the aircraft had already (36) ________ its weight allowance. If they fail to appear on the carousel, report the loss before you leave the baggage hall and go through customs. Recovering your luggage should be no problems, (37) ________ you've kept hold of your baggage checks – those little barcodes stuck to the back of your tickets at check-in. Go to the handling agent's desk and complete a Property Irregularity Report (PIR) form, (38) ________ describes the checked bag and its contents. Then, ask the baggage-service manager for a contact telephone number and confirm that your bags will be forwarded to your final destination
surpassed
overtaken
exceeded
outdone
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word(s) to each of the questions. You get off your plane and make your way to the Baggage Reclaim area. After quite some time spent waiting, there is no sign of your bags and you begin to consider the possibility that they may have gone (34) ________. What should you do? Firstly, don't panic. The most likely (35) ________ is that your bags simply didn't make it onto the flight, perhaps because they were mislaid at the departure airport, or perhaps because the aircraft had already (36) ________ its weight allowance. If they fail to appear on the carousel, report the loss before you leave the baggage hall and go through customs. Recovering your luggage should be no problems, (37) ________ you've kept hold of your baggage checks – those little barcodes stuck to the back of your tickets at check-in. Go to the handling agent's desk and complete a Property Irregularity Report (PIR) form, (38) ________ describes the checked bag and its contents. Then, ask the baggage-service manager for a contact telephone number and confirm that your bags will be forwarded to your final destination
as soon as
provided
so that
already
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word(s) to each of the questions. You get off your plane and make your way to the Baggage Reclaim area. After quite some time spent waiting, there is no sign of your bags and you begin to consider the possibility that they may have gone (34) ________. What should you do? Firstly, don't panic. The most likely (35) ________ is that your bags simply didn't make it onto the flight, perhaps because they were mislaid at the departure airport, or perhaps because the aircraft had already (36) ________ its weight allowance. If they fail to appear on the carousel, report the loss before you leave the baggage hall and go through customs. Recovering your luggage should be no problems, (37) ________ you've kept hold of your baggage checks – those little barcodes stuck to the back of your tickets at check-in. Go to the handling agent's desk and complete a Property Irregularity Report (PIR) form, (38) ________ describes the checked bag and its contents. Then, ask the baggage-service manager for a contact telephone number and confirm that your bags will be forwarded to your final destination
that
what
which
how
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
What does the passage mainly discuss?
Sources of illumination for microscopes
The detail seen through a microscope
Outdated microscopic technique
A new kind of microscope
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
According to the passage, the invention of the visible-light microscope allowed scientists to ________.
understand more about the distribution of the chemical elements
develop the electron microscope later on
discover single-celled plants and animals they had never seen before
see viruses directly
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
The word “minuscule" in paragraph 1 is closest in meaning to ________.
complex
tiny
circular
dangerous
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
Why does the author mention the visible-light microscope in the first paragraph?
To explain how it functioned
To show how limited its uses are
To begin a discussion of sixteenth century discoveries
To put the X-ray microscope in historical perspective
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
Why did it take so long to develop the X-ray microscope?
Funds for research were insufficient
The source of illumination was not bright enough until recently
Materials used to manufacture X-ray tubes were difficult to obtain
X-ray microscopes were too complicated to operate
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
The word "those" in paragraph 3 refers to ________
investigations
microscopes
properties
X-rays
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.
Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X-rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world.
The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays.
The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments
Based on the information in the passage, what can be inferred about X-ray microscopes in the future?
They will eventually change the illumination range that they now use
They will provide information not available from other kinds of microscopes
They will eventually be much cheaper to produce than they are now
They will probably replace electron microscopes altogether.
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.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away
What is the main idea of the passage?
Apples are not as good as people may think
Eating an apple in the morning proves beneficial.
Pectin can cause digestive problems at night
Flavonoids are as good as beta carotene.
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.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away
The word "that" in paragraph 2 refers to ________
an apple
energy
sugar
a cup of coffee
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.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away
The word "stimulates” in paragraph 3 is closest in meaning to ________
prevents
avoids
encourages
creates
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.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away
Which of the following gives people a big boost of energy?
Fructose
Flavonoids
Beta Carotene
Pectin
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.
Apples are one of the healthiest foods you can eat every day. A traditional American proverb states: "An apple a day keeps the doctor away". But it does not specifically say anything about the best time of day to eat apples. It is generally believed that eating an apple in the morning is good for people, but eating an apple in the evening is like eating poison.
There is actually a scientific reason behind this belief. One benefit of apples is that they are a favorable source of fructose, which is a natural form of sugar that gives you a big boost of energy. The energy you get from an apple is longer lasting than that provided by a cup of coffee. Clearly, this is something most people would rather experience in the morning than right before bedtime.
Apples also contain high levels of pectin, a kind of dietary fiber. Fiber stimulates bowel movements, which help maintain the health of your digestive system. But if you eat an apple shortly before going to bed, this can cause problems. While you are asleep, your bowels can fill up with gas, making you feel bloated and uncomfortable. You may also wake up several times to use the bathroom, which will prevent you from getting a good night's sleep.
Other health benefits of apples come from flavonoids, beta carotene, and B vitamins. Flavonoids are the material that gives flowers and fruits their bright colors, such as the deep red of apples. When eaten, flavonoids can decrease your risk of heart disease, diabetes, and other illnesses. Meanwhile, beta carotene helps prevent cancer, and B vitamins provide the body with a wide variety of important benefits. Apparently, starting your day with an apple really can keep the doctor away
Which of the following is TRUE about flavonoids?
They make apples' colors brighter than those of other fruits
They are less important than beta carotene and B vitamins
They help prevent the risks of several health problems
They may lead to the feeling of being bloated and uncomfortable
