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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...
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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.

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

1
19 tháng 3 2018

Đáp án C.

15 tháng 9 2018

Đáp án D

Giải thích: the number of + Động từ số ít => has

Dịch nghĩa: Thế giới đang trở nên công nghiệp hóa và số lượng giống loài động vật những con mà dần trở nên tuyệt chủng đang tăng

19 tháng 4 2017

Đáp án B.

Key words: main idea of the passage.

Trong đoạn 1, 2 tác giả nêu ra rằng âm nhạc Mĩ khởi nguồn từ những người Mĩ gốc Phi; nhưng không ai bận tâm ghi chép về những người đã mang âm nhạc từ quê hương họ tới Mĩ.

Đoạn cuối nói rằng người ta thật khó biết tên của những người đã khơi nguồn cho truyền thống âm nhạc này ở Mĩ. Do đó, đáp án đúng phải là B. it is hard to exactly recognize the people who started the American musical tradition: Thật khó để xác định chính xác những người khởi đầu cho truyền thống âm nhạc ở Mĩ.

17 tháng 12 2017

Đáp án B.

Key words: main idea of the passage.

Trong đoạn 1, 2 tác giả nêu ra rằng âm nhạc Mĩ khởi nguồn từ những người Mĩ gốc Phi; nhưng không ai bận tâm ghi chép về những người đã mang âm nhạc từ quê hương họ tới Mĩ.

Đoạn cuối nói rằng người ta thật khó biết tên của những người đã khơi nguồn cho truyền thống âm nhạc này ở Mĩ. Do đó, đáp án đúng phải là B. it is hard to exactly recognize the people who started the American musical tradition: Thật khó để xác định chính xác những người khởi đầu cho truyền thống âm nhạc ở Mĩ.

31 tháng 8 2018

Đáp án B.

Key words: main idea of the passage.

Trong đoạn 1, 2 tác giả nêu ra rằng âm nhạc Mĩ khởi nguồn từ những người Mĩ gốc Phi; nhưng không ai bận tâm ghi chép về những người đã mang âm nhạc từ quê hương họ tới Mĩ.

Đoạn cuối nói rằng người ta thật khó biết tên của những người đã khơi nguồn cho truyền thống âm nhạc này ở Mĩ. Do đó, đáp án đúng phải là B. it is hard to exactly recognize the people who started the American musical tradition: Thật khó để xác định chính xác những người khởi đầu cho truyền thống âm nhạc ở Mĩ.

10 tháng 9 2018

Đáp án: A

Giải thích: Ở cuối câu 1 đoạn 2, tác giả có nhắc đến việc cách dùng chuẩn được chấp nhận bởi số đông mọi người ở bất kì hoàn cảnh nào, không cần tính đến mức độ trang trọng.

7 tháng 4 2018

Đáp án: C

Giải thích: Chúng ta thấy câu C sai luôn khi đọc đến dòng 4, dòng 5 của đoạn 2.

25 tháng 8 2018

Đáp án: C

7 tháng 10 2019

Đáp án: B

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.     Recent research into the world of teenagers has suggested that they value friendship above everything else. Children aged between 12 and 15 were asked what was important to them. Their answers included possessions such as money and computer gadgets but also relationships with people. The teenagers questioned said that friends were the most important to...
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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.

     Recent research into the world of teenagers has suggested that they value friendship above everything else. Children aged between 12 and 15 were asked what was important to them. Their answers included possessions such as money and computer gadgets but also relationships with people. The teenagers questioned said that friends were the most important to them, more even than family, or boyfriends and girlfriends.

     We wanted to find out more about the results of this research so we asked our readers what they thought about the value of friendship. Here are some examples of what they said about their friends:

     Ben, 15:

     Every time I have a fight with my parents, I need some time on my own. But after that, the first thing I do is meet up with my friends. After playing football for a while, or skateboarding, I usually feel much happier again.

     Rory, 13:

     When I moved to a village in the countryside, I thought that it would be the end of my friendships. But my old friends have kept in touch and they come and visit during the holidays. There’s a lake nearby, so we often go sailing, waterskiing or windsurfing. And I have made some new friends here too, at school, since I joined the rugby club.

     Carlos, 11:

     Last year, I broke my arm on a skiing holiday. Unfortunately, it was my left arm and I am left-handed. My school friends all helped and copied their notes for me.

     It seems that our readers value their friendships very highly. From what they told us, they spend a lot of time with their friends, just hanging out, or sharing hobbies and interests. They seem to need their friends for advice, help, chats, and for having fun. Clearly, friends make each other feel better. Looking at what our readers told us, the results of the recent research are not really surprising.

28. Why are Ben, Rory and Carlos mentioned in the article?

     A. They know why teenagers value friendship.

     B. They read magazines.

     C. They give information about themselves.

     D. They are teenage boys.

29. Which of the following best describes Ben?

     A. He often has fights.                    B. He is happier than his friends.

     C. He likes being alone.                  D. He likes some sports.

30. What do we know about the lake that Rory visits?

     A. It is near the school.

     B. It is used by a lot of people who do water sports.

     C. It is near his home.

     D. It is a village.

31. Carlos mentions that he is left-handed because ………………………...

     A. it makes skiing harder

     B. it makes it worse that he broke the arm he uses most

     C. it is an interesting fact about himself and he was talking about his left arm

     D. it is very unfortunate when you break your left hand

32. The answers to the recent research and the answers from the readers …..

     A. were surprising                                       B. were similar

     C. were not the same                                              D. were both about sports

1
28 tháng 9 2021

1 C

2 D

3 A

4 B

5 B

17 tháng 6 2019

Đáp án: D

Giải thích: Ở câu "Slang, however, refers to words and expressions understood by a large number of speakers but not accepted as appropriate formal usage by the majority.", tác giả có nhắc đến “Tiếng lóng chỉ từ ngữ và cách diễn đạt nhiều người hiểu nhưng không được phần đông chấp nhận là ngôn ngữ trang trọng.”