topic 1 talk about causes and effects of water pollution / air pollution / noise pollution / soil polluntion /,....and s...

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

DH

Dương Hoàn Anh

19 tháng 3 2018

Đáp án C.

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...

LQ

Lê Quỳnh Anh

2 tháng 12 2017

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 ______.

A. the ozone hole

B. clean-up agent

C. acid rain

D. urban smog

1

DH

Dương Hoàn Anh

2 tháng 12 2017

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. 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...

LQ

Lê Quỳnh Anh

27 tháng 12 2019

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 __________.

A. refining

B. ridding

C. destroying

D. rising

1

DH

Dương Hoàn Anh

27 tháng 12 2019

Đáp án A.

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...

LQ

Lê Quỳnh Anh

28 tháng 11 2019

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?

A. An expansion in hydroxyl has enlarged the ozone hole.

B. The decrease of methane has enabled ultraviolet radiation to enter the atmosphere.

C. The reduction in carbon dioxide has produced a cleaner atmosphere.

D. The beneficial effect of hydroxyl has aided the cleaning process.

1

DH

Dương Hoàn Anh

28 tháng 11 2019

Đáp án D.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with...

LQ

Lê Quỳnh Anh

26 tháng 12 2019

1

DH

Dương Hoàn Anh

26 tháng 12 2019

Đáp án B

Giải thích: Câu hỏi này về ngữ động từ (phrase verb)

•pick st up = lift st up: nâng lên, làm bay đi

“As the wind blows over the land, it often picks up small grains of sand.” – Khi cơn gió thổi qua một miền đất, nó thường làm bay đi những cát nhỏ.

•clean st out: lấy cắp, làm sạch hoàn toàn bên trong

VD: I must clean the fish tank out. (Tôi phải làm sạch bên trong bể cá.)

•carry st out: thực hiện điều gì

•hold st up: trì hoãn, lấy cắp

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees,...

LQ

Lê Quỳnh Anh

29 tháng 11 2019

1

DH

Dương Hoàn Anh

29 tháng 11 2019

Đáp án D

Giải thích: hillside: (n) sườn đồi

“When particles of rocks or soil became loosened in any way, running water carries them down the hillsides.” – Khi các hòn đất đá trở nên tơi ra, nước xoáy làm chúng rơi xuống sườn đồi.

•Phương án sai: border: (n) biên giới (giữa 2 vùng hoặc 2 quốc gia)

•Phương án sai: topside: phần nổi lên trên mặt nước của chiếc tàu; súc thịt bò cắt ra từ phần trên của chân

•Phương án sai: backside: (trượt tuyết) mặt gót

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.Land that is covered with trees,...

LQ

Lê Quỳnh Anh

20 tháng 6 2017

1

DH

Dương Hoàn Anh

20 tháng 6 2017

Đáp án C

Giải thích: Tính từ little chỉ sự khan hiếm hoặc thiếu và gần như mang nghĩa phủ định được dùng trước danh từ không đếm được (trong câu này là soil: đất trồng). Ta có thể dùng trạng từ chỉ mức độ so/ very để bổ nghĩa cho tính từ little.

“Land that is covered with trees, grass and other plants wears away very slowly, and so loses very little of its soil.” – Đất được bao phủ bởi cây cối, cỏ và các loại thực vật khác bị trôi đi rất chậm, và như thế mất rất ít đất trồng.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.Land that is covered with trees,...

LQ

Lê Quỳnh Anh

13 tháng 5 2017