Câu hỏi:

26/09/2024 1,027

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: Based on information in the passage, all of the following information referring to hydroxyl is true EXCEPT __________.

A. oxidization of pollutants is carried out by hydroxyl.

B. ultraviolet radiation increases production of hydroxyl.

C. there is difficulty in destroying carbon dioxide by hydroxyl.

Đáp án chính xác

D. the reduction in the ozone layer is beneficial to hydroxyl.

Trả lời:

verified Giải bởi Vietjack

Đáp án C

Dịch nghĩa: Dựa trên thông tin trong đoạn văn, tất cả các thông tin sau đây liên quan đến hydroxyl đều đúng TRỪ __________.

A. sự oxi hóa các chất ô nhiễm được thực hiện bởi hydroxyl

B. bức xạ cực tím làm tăng sản xuất hydroxyl

C. có khó khăn trong việc tiêu diệt carbon dioxide bởi hydroxyl

D. sự giảm thiểu lớp ozone là có lợi cho hydroxyl

Thông tin:

- Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. (Trong số các chất ô nhiễm bắt đầu biến mất khỏi bầu khí quyển có carbon monoxide, phát ra từ khí thải ô tô và đốt cháy rừng mưa, cùng với metan từ hệ tiêu hóa của gia súc, ruộng lúa và các mỏ khí.)

-  The main planetary clean-up agent is a chemical called hydroxyl. (Chất tẩy rửa chính trên hành tinh này là một hóa chất có tên hydroxyl.)

→ Chọn C vì chính hydroxyl đã tẩy rửa làm cho carbon monoxide sớm biến mất khỏi bầu khí quyển.

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: The word “purging” in line 2 is closest in meaning to __________.

Xem đáp án » 21/07/2024 1,082

Câu 2:

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: The word “it” in paragraph 5 refers to ______.

Xem đáp án » 19/07/2024 599

Câu 3:

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

The employer suffered from depression _____ by overwork and ill-health.

Xem đáp án » 22/07/2024 574

Câu 4:

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.

   From a very early age, it was apparent that Magnus Carlen was a brilliant chess player. By the age of 13, Magnus was (31)_______ to be one of the best chess players in the world, and his parents wanted him to reach his full potential as a professional chess player.

   This meant their son had to develop a lifestyle of strict (32)_____ which included many hours of practice. Only this way could he become a world champion, (33)______ Magnus’s parents supported him that they did not want him to devote his whole life to chess. They felt that if he focused only on chess, he would sufer both physically and emotionally. They made it clear to him that thay had no intention on letting their son drop out of school. He was also encouraged to follow his interest in sports. As a rest time of his (34)_____ , when Magnus graduate from high school in 2009, he was not only the best chess player in the world, but he was also awarded the title of “sport-student of the year” for his achievements in snowboarding and golf.

   Today, Magnus gives (35)______ to his parents for the way they raised him. They set rules, they never (36)_____ with his ambitions. Instead they gave him the support and encouragement he needed to achieve his goals and still be a happy young man.

Question 32:

Xem đáp án » 21/07/2024 553

Câu 5:

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

  The air above our head is becoming cleaner. A breath of fresh air has been running right round the planet for the past five years. The planet is apparently purging itself of pollution. Paul Novell of the University of Colorado, the co-author of a report on this phenomenon says, “It seems as if the planet’s own cleaning service has suddenly got a new lease of life. Suddenly, there are a lot of changes going on up there”.

  Estimates of the death toll from urban smog have been steadily rising, so the new cleaner trend could have significant consequences for life expectancy in cities as well as for the planet itself. The sudden and unexpected reversal of several decades of worsening pollution extends from the air in city streets to the remotest mid-Pacific Ocean and Antarctica.

   Among the pollutants which have begun to disappear from the atmosphere are carbon monoxide, from car exhaust and burning rain forests, and methane from the guts of cattle, paddy fields, and gas fields. Even carbon dioxide, the main gas behind global warning, has fallen slightly.

   There are two theories about why pollution is disappearing. First that there is less pollution to start with due to laws to cut down urban smogs and acid rain starting to have a global impact. Second, that the planet may be becoming more efficient at cleaning up.

   The main planetary clean-up agent is a chemical called hydroxyl. It is present throughout the atmosphere in tiny quantities and removes most pollutants from the air by oxidizing them. The amount of hydroxyl in the air has fallen by a quarter in 1980s. Now it may be reviving for two reasons: ironically, because the ozone hole has expanded, letting in more ultraviolet radiation into the lower atmosphere, where it manufactures hydroxyl. Then the stricter controls on vehicle exhausts in America and Europe may have cut global carbon monoxide emissions, thereby allowing more hydroxyl to clean up other pollutants.

Question: The passage supports which of the following conclusion?

Xem đáp án » 16/07/2024 437

Câu 6:

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.

We should join hands to protect our environment.

Xem đáp án » 06/09/2024 426

Câu 7:

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.

   From a very early age, it was apparent that Magnus Carlen was a brilliant chess player. By the age of 13, Magnus was (31)_______ to be one of the best chess players in the world, and his parents wanted him to reach his full potential as a professional chess player.

   This meant their son had to develop a lifestyle of strict (32)_____ which included many hours of practice. Only this way could he become a world champion, (33)______ Magnus’s parents supported him that they did not want him to devote his whole life to chess. They felt that if he focused only on chess, he would sufer both physically and emotionally. They made it clear to him that thay had no intention on letting their son drop out of school. He was also encouraged to follow his interest in sports. As a rest time of his (34)_____ , when Magnus graduate from high school in 2009, he was not only the best chess player in the world, but he was also awarded the title of “sport-student of the year” for his achievements in snowboarding and golf.

   Today, Magnus gives (35)______ to his parents for the way they raised him. They set rules, they never (36)_____ with his ambitions. Instead they gave him the support and encouragement he needed to achieve his goals and still be a happy young man.

Question 34:

Xem đáp án » 18/07/2024 311

Câu 8:

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

I don’t think Peter will reject that job offer, ______?

Xem đáp án » 08/08/2024 274

Câu 9:

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.

   From a very early age, it was apparent that Magnus Carlen was a brilliant chess player. By the age of 13, Magnus was (31)_______ to be one of the best chess players in the world, and his parents wanted him to reach his full potential as a professional chess player.

   This meant their son had to develop a lifestyle of strict (32)_____ which included many hours of practice. Only this way could he become a world champion, (33)______ Magnus’s parents supported him that they did not want him to devote his whole life to chess. They felt that if he focused only on chess, he would sufer both physically and emotionally. They made it clear to him that thay had no intention on letting their son drop out of school. He was also encouraged to follow his interest in sports. As a rest time of his (34)_____ , when Magnus graduate from high school in 2009, he was not only the best chess player in the world, but he was also awarded the title of “sport-student of the year” for his achievements in snowboarding and golf.

   Today, Magnus gives (35)______ to his parents for the way they raised him. They set rules, they never (36)_____ with his ambitions. Instead they gave him the support and encouragement he needed to achieve his goals and still be a happy young man.

Question 33:

Xem đáp án » 19/07/2024 217

Câu 10:

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

I’m sorry because I’ve lost the key to the drawer _____ all the important papers are kept.

Xem đáp án » 19/07/2024 206

Câu 11:

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.

   From a very early age, it was apparent that Magnus Carlen was a brilliant chess player. By the age of 13, Magnus was (31)_______ to be one of the best chess players in the world, and his parents wanted him to reach his full potential as a professional chess player.

   This meant their son had to develop a lifestyle of strict (32)_____ which included many hours of practice. Only this way could he become a world champion, (33)______ Magnus’s parents supported him that they did not want him to devote his whole life to chess. They felt that if he focused only on chess, he would sufer both physically and emotionally. They made it clear to him that thay had no intention on letting their son drop out of school. He was also encouraged to follow his interest in sports. As a rest time of his (34)_____ , when Magnus graduate from high school in 2009, he was not only the best chess player in the world, but he was also awarded the title of “sport-student of the year” for his achievements in snowboarding and golf.

   Today, Magnus gives (35)______ to his parents for the way they raised him. They set rules, they never (36)_____ with his ambitions. Instead they gave him the support and encouragement he needed to achieve his goals and still be a happy young man.

Question 36:

Xem đáp án » 17/07/2024 188

Câu 12:

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.

Parents play a crucial role in a child’s upbringing in the formative years. They are really the driving force behind whatever the children do.

Xem đáp án » 16/07/2024 181

Câu 13:

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Education (A) and training are an (B) important steps in getting (C) the kind of job that you would like to have (D).

Xem đáp án » 17/07/2024 177

Câu 14:

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.

James may get into hot water when driving at full speed after drinking.

Xem đáp án » 20/07/2024 169

Câu 15:

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

If I were you, I _____ for that English course.

Xem đáp án » 16/07/2024 166

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