25 đề thi thử Tiếng Anh chuẩn cấu trúc bộ giáo dục có lời giải chi tiết(p23)
50 câu hỏi
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
subscribed
launched
inspired
welcomed
Đáp án B
subscribed /səbˈskraɪbd/
launched /lɔnʧt/
inspired /ɪnˈspaɪərd/
welcomed /ˈwɛlkəmd/
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
roofs
cloths
books
clothes
Đáp án D
roofs /rufs/
cloths /klɔθs/
books /bʊks/
clothes /kloʊðz/
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 the primary stress in each of the following questions
waver
achieve
employ
conserve
Đáp án A
waver /ˈweɪvər/
achieve /əˈʧiv/
employ /ɛmˈplɔɪ/
conserve /kənˈsɜrv/
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 the primary stress in each of the following questions
perseverance
application
agriculture
dedication
Đáp án C
perseverance /ˌpɜrsəˈvɪrəns/
application /ˌæpləˈkeɪʃən/
agriculture /ˈægrɪˌkʌlʧər/
dedication /ˌdɛdəˈkeɪʃən/
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
It is recommended that people to take regular exercise
recommended
people
to take
exercise
Đáp án C
To take => 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
More than ten students have failed the exam, that surprised the class teacher.
more than
have failed
that
the
Đáp án C
That => which
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 world is becoming more industrialized and the number of animal species that have become extinct have increased
industrialized
species
extinct
have
Đáp án D
Have => has
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
He is exhausted. He _______ around the whole afternoon trying to clean the house before the guests arrive.
has been running
has run
be running
was running
Đáp án A
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
Tim asked Sarah English so far
how long was she learning
how long she has been learning
she had been learning how long
how long she had been learning
Đáp án D
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
No one enjoys _______ in public
to make fun of
to be made fun of
being made fun of
making fun of
Đáp án C
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
Donald Trump is _______ President of _______ United States
the/ the
a/ Æ
the/ Æ
the/ an
Đáp án A
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
________ with the size of the whole earth, the highest mountains do not seem high at all
A comparison
Compare them
If you compare
When compared
Đáp án: D
Giải thích:
A. A comparison: Một sự so sánh
B. Compare them: So sánh chúng
C. If you compare: Nếu bạn so sánh
D. When compared: Khi được so sánh
Rút gọn mệnh đề đồng chủ ngữ dạng bị động, dùng VpII.
Dịch: Khi so sánh với kích thước của toàn bộ Trái Đất, những ngọn núi cao nhất dường như không cao chút nào.
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
Most of us would agree that physical ________ does not play a major part in how we react to the people we meet
attractively
attract
attractiveness
attractive
Đáp án C
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
I do not think there is a real __________between men and women at home as well as in our society
attitude
equality
value
measurement
Đáp án B
A. thái độ
B. bình đẳng
C. giá trị
D. đo lường
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
She jumped and shouted to draw _______ to herself.
notion
intention
attention
attraction
Đáp án C
Draw attention to: làm mọi người chú ý
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
We just jumped in a car on the ______ of the moment and drove to the seaside.
current
top
desire
spur
Đáp án: D
Giải thích:
Kiến thức: Thành ngữ
on the spur of the moment: ngay tức thì, không có kế hoạch trước
Dịch: Chúng tôi đã nhảy lên xe ngay theo cảm hứng bất chợt và lái xe đến bờ biển.
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
I’m afraid a rise in the salary is__________ just now
out of sight
out of control
out of date
out of the question
Đáp án D
Out of sight: đắt đỏ
Out of control: mất kiểm soát
Out of date: hết hạn sử dụng
Out of the question: không thể bàn tới, không thể diễn ra
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
When the police investigate a crime, they ________evidence such as fingerprints, hair, or clothing
look after
look up to
look for
look into
Đáp án C
Look after: chăm sóc ai đó
Look into sth: kiểm tra hiện trạng
Look for: tìm kiếm
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
After months of testing, the Russian space scientists ______ a space suit that works better than any other in history
get along with
came up with
came up to
keep up with
Đáp án: B
Giải thích:
A. get along with (phr. v): hòa hợp, hòa đồng với
B. come up with (phr. v): nảy ra, gợi ý ý tưởng
C. come up to (phr. v): đạt chuẩn
D. keep up with (phr. v): theo kịp
Dịch: Sau nhiều tháng thử nghiệm, các nhà khoa học vũ trụ Nga đã tạo ra một bộ đồ vũ trụ hoạt động tốt hơn bất kì loại nào khác trong lịch sử.
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
Two friends Peter and Linda are talking about pet.
- Peter: “Well, cats are very good at catching mice around the house.”
- Linda: “______.”
Nothing more to say.
You can say that again.
Yes, I hope so.
No, dogs are very good, too
Đáp án B
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
“ What an attractive hair style you have got, Mary!” - “________________”
You are telling a lie.
I don’t like your saying
Thank you very much. I’m afraid
Thank you for your compliment.
Đáp án D
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
I’m becoming increasingly absent-minded. Last week, I locked myself out of my house twice
being considerate of things
remembering to do right things
forgetful of one’s past
often forgetting things
Đáp án D
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
Sports and festivals form an integral part of every human society.
Informative
delighted
exciting
essential
Đáp án D
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.
Although it’s a long day for us, we feel we are contented with what we do
interested
dissatisfied
excited
shocked
Đáp án B
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.
I can’t stand people who treat animals cruelly
gently
cleverly
reasonably
brutally
Đáp án A
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
However old and worn his clothes were, they look clean and of good quality
His clothes looked clean and of good quality but they were old and worn.
His clothes, though old and worn, looked clean and of good quality
He was fond of wearing such old and worn clothes because they were of good quality.
No matter what good quality his clothes had, they looked old and worn.
Đáp án B
Tuy nhiên quần áo của ông đã cũ và sờn phai, chúng trông vẫn sạch sẽ và có chất lượng tốt.
A. Quần áo của anh trông sạch sẽ và có chất lượng tốt nhưng chúng đã cũ và sờn.
B. Quần áo của ông, mặc dù cũ và mòn, trông sạch sẽ và có chất lượng tốt.
C. Ông thích mặc quần áo cũ và sờn như vậy vì chúng có chất lượng tốt.
D. Dù quần áo của ông có chất lượng tốt, chúng trông cũ và sờn
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
In spite of his poverty, he led a devoted life to the revolutionary cause
He could not devote his life to the revolutionary cause because of his poverty.
If he had not been so poor, he could have devoted his life to the revolutionary cause.
Poor as he was, he led a devoted life to the revolutionary cause.
He led a devoted life to the revolutionary cause, but he was so poor
Đáp án C
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
I thought I should not stay at home yesterday
I regretted staying at home yesterday.
I regretted for staying at home yesterday.
I regret for staying at home yesterday.
I regret to stay at home yesterday
Đáp án A
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
People should not throw rubbish in the park. People should not cut down the trees in the park
People should either throw rubbish in the park or cut down the trees in the park.
People should neither throw rubbish nor cut down the trees in the park.
People should either throw rubbish nor cut down the trees in the park.
People should neither throw rubbish or cut down the trees in the park
Đáp án B
Neither… nor…: không… cũng không
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
Most of the classmates couldn't come. He invited them to the birthday party
Most of the classmates he invited to the birthday party couldn't come.
Most of the classmates he was invited to the birthday party couldn't come.
Most of the classmates that he invited them to the birthday party couldn't come.
Most of the classmates which he invited to the birthday party couldn't come
Đáp án A
A. yếu tố
B. vấn đề
C. quan tâm
D. thông tin
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 from 31 to 35
One of the most important (31) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (32) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (33) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (34) _______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A question that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (35) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably
Điền câu 31
factors
issue
concern
information
Đáp án A
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 from 31 to 35
One of the most important (31) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (32) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (33) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (34) _______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A question that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (35) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably
Điền câu 32
quickly
fast
wisely
hardly
Đáp án C
A. gần
B. tương tự
C. sẵn
D. phù hợp
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 from 31 to 35
One of the most important (31) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (32) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (33) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (34) _______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A question that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (35) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably
Điền câu 33
close
similar
available
suitable
Đáp án C
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 from 31 to 35
One of the most important (31) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (32) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (33) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (34) _______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A question that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (35) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably
Điền câu 34
short
running
moving
cutting
Đáp án B
Run out of time: hết giờ, thiếu thời gian
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 from 31 to 35
One of the most important (31) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (32) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (33) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (34) _______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A question that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (35) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably
Điền câu 35
Therefore
However
So
Besides
Đáp án D
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
According to the passage, cell phones are especially popular with young people because _______
they are indispensable in everyday communications.
they make them look more stylish.
they keep the users alert all the time.
they cannot be replaced by regular phones
Đáp án B
Theo đoạn văn, điện thoại di động đặc biệt phổ biến với những người trẻ tuổi vì _______
A. chúng là thứ không thể thiếu hàng ngày.
B. chúng làm cho họ trông phong cách hơn.
C. họ giữ cho người dùng cảnh báo tất cả các thời gian.
D. họ không thể được thay thế bằng điện thoại thông thường
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
"Negative publicity" in the passage most likely means __________
poor ideas about the effects of cell phones.
widespread opinion about bad effects of cell phones.
information on the lethal effects of cell phones.
the negative public use of cell phones.
Đáp án B
"Sự công khai tiêu cực" trong đoạn văn có thể là __________
A. những ý tưởng tồi về ảnh hưởng của điện thoại di động.
B. ý kiến rộng rãi về tác động xấu của điện thoại di động.
C. thông tin về các hiệu ứng gây chết người của điện thoại di động.
D. việc sử dụng điện thoại di động công cộng một cách tiêu cực
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
The changes possibly caused by the cell phones are mainly concerned with ______
the smallest units of the brain
the mobility of the mind and the body.
the resident memory.
the arteries of the brain
Đáp án A
Những thay đổi gây ra bởi điện thoại di động chủ yếu liên quan đến ______
A. các tế bào của não.
C. sự di chuyển của trí não và cơ thể.
B. trí nhớ
D. các động mạch của não.
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
The man mentioned in the passage, who used his cell phone too often, _______
had a problem with memory.
abandoned his family.
suffered serious loss of mental ability.
could no longer think lucidly
Đáp án A
Người đàn ông được đề cập trong đoạn văn, người thường xuyên sử dụng điện thoại di động của mình, _______
A. có vấn đề với trí nhớ.
B. từ bỏ gia đình.
C. bị mất khả năng sử dụng trí não nghiêm trọng.
D. không còn có thể suy nghĩ một cách sáng suốt
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
The word “they” in paragraph 1 refers to ______.
ideas
negative publicity
Mobile phone companies
health problems
Đáp án C
Từ “họ” trong đoạn 1 đề cập đến ______.
A. ý tưởng
B. công khai tiêu cực
C. Các công ty điện thoại di động
D. vấn đề sức khỏe
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
The word "potentially" in the passage most closely means ....................
“certainly”
“obviously”
“privately”
“possibly”
Đáp án D
Từ " potentially" trong đoạn văn gần nghĩa với:
A. "chắc chắn"
B. "rõ ràng"
C. "riêng"
D. "có thể"
Read the passage below and choose the best answers that follow.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
The most suitable title for the passage could be _______
“Mobile Phones: A Must of Our Time”
“Technological Innovations and Their Price”.
“The Way Mobile Phones Work”.
“The Reasons Why Mobile Phones Are Popular”
Đáp án B
Tiêu đề phù hợp nhất cho đoạn văn có thể là _______
A. “Điện thoại di động: vật dụng cần thiết của thời đại của chúng ta”
B. “Đổi mới công nghệ và cái giá của nó”.
C. "Cách hoạt động của điện thoại di động".
D. "Lý do tại sao điện thoại di động là phổ biến".
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author states that the Hubble was not always popular because ________.
people were afraid of what might be found
many people believed space exploration was a waste of time
it was defective for its first three years in space
it was more expensive than most space shuttles
Đáp án B
Tác giả nói rằng Hubble không phải lúc nào cũng phổ biến vì ________.
A. mọi người sợ những gì có thể được tìm thấy
B. nhiều người tin rằng khám phá không gian là một sự lãng phí thời gian
C. nó đã bị lỗi trong ba năm đầu tiên của nó trong không gian
D. nó đắt hơn hầu hết các tàu con thoi
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author implies that the satellite that carries the Hubble was specifically designed so that _________
the known defective mirror could be replaced in space rather than on Earth
maintenance could be done by travelling astronauts
the Hubble could move easily
the mirror could contract and expand
Đáp án B
Tác giả cho rằng vệ tinh mang theo Hubble được thiết kế đặc biệt để _________.
A. những tấm gương khuyết có thể được thay thế trong không gian thay vì trên Trái đất
B. các phi hành gia có thể bảo trì máy
C. Hubble có thể di chuyển dễ dàng
D. gương có thể thu nhỏ và mở rộng
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author compares the astronauts of the Endeavor to ________
astronomers
scientists
mechanics
politicians
Đáp án C
Tác giả so sánh các phi hành gia của Endeavour với ________.
A. các nhà thiên văn học
B. các nhà khoa học
C. các thợ cơ khí
D. các chính trị gia
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The word “it” in paragraph 1 refers to ______
time
space
186,000 miles a second
light
Đáp án D
Từ “nó” trong đoạn 1 đề cập đến ______.
A. thời gian
B. không gian
C. 186.000 dặm một giây
D. ánh sáng
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author states that Edward Hubble ________
developed the Hubble telescope
was the first person to use the Hubble telescope
developed a mathematical formula to measure speed and distances between galaxies
was a politician who sponsored funding in Congress
Đáp án C
Tác giả nói rằng Edward Hubble ________.
A. đã phát triển kính thiên văn Hubble
B. là người đầu tiên sử dụng kính thiên văn Hubble
C. đã phát triển một công thức toán học để đo tốc độ và khoảng cách giữa các thiên hà
D. là một chính trị gia tài trợ tài trợ cho Quốc hội
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author states that ________
when viewing a distant galaxy through the Hubble telescope, you are actually looking back in time
the new mirror distorts the image
the view from Hubble is not accurate, but it is interesting
you cannot discern distance or time with any kind of accuracy
Đáp án A
Tác giả nói rằng ________.
A. khi xem một thiên hà xa xôi qua kính thiên văn Hubble, bạn thực sự đang nhìn lại thời gian
B. gương mới làm biến dạng hình ảnh
C. chế độ xem từ Hubble không chính xác nhưng điều thú vị
D. bạn không thể phân biệt khoảng cách hoặc thời gian với bất kỳ loại đơn vị đo lường chính xác nào
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The word “billowing” in the third paragraph is closest meaning to ________
sitting
stopping
exploding
pouring
Đáp án D
Từ “billowing” trong đoạn thứ ba có ý nghĩa gần nhất với ________.
A. ngồi
B. dừng
C. bùng nổ
D. đổ ra
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.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work. Because the primary mirror was misshapen, it was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe”, as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some travelling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on Earth, but its details were not as certainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the Sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as comic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies
The author implies that a black hole is analogous to ________
water draining in a bathtub
a galaxy
a group of stars
a cloud
Đáp án A
Tác giả cho rằng hố đen tương tự như ________.
A. nước chảy trong bồn tắm
B. một thiên hà
C. một nhóm các ngôi sao
D. một đám mây




