Reading-Comprehension-Lesson 39

Đọc hiểu -TOEFL- Bài 39

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   One of the factors in global warming is carbon monoxide. The more
carbon monoxide in the atmosphere, the less the atmosphere is able
to clean itself. The result is a warming of the atmosphere, the so-called
global warming, and possibly ozone damage.
5
Earlier, it was found that carbon monoxide was concentrated in the
Southern Hemisphere, and could be attributed to deforestation. Huge
areas of forest and grasslands in South America and Africa have been
burned, putting carbon monoxide into the atmosphere. Recently, however,
10 the Southern Hemisphere has been found to be clean, while the Northern
Hemisphere is more polluted than expected.

The latest research was done during the northern winter. The high
levels in the Northern Hemisphere could be because of this. In winter
15 carbon monoxide is destroyed more slowly. There are also more fires
burned in winter, and possibly industrial processes work harder.
It could also reflect the ever-increasing number of cars on the roads.
Optimists hope that the reason why the North has overtaken the South
as the major area of carbon monoxide is that at last the burning
20 has stopped, or at least slowed down.

1. Which of the following is the best title for the passage?
(A) Global warming.
(B) Carbon monoxide in the atmosphere.
(C) The warming of the atmosphere.
(D) Ozone damage.
2. Which of the following is NOT a reason for carbon dioxide?
(A) Ozone damage.
(B) Burning of forest.
(C) Traffic.
(D) Industry.
3. According to the author which of the following is a reason why in winter there is more carbon-monoxide in the atmosphere?
(A) Fewer factories are working.
(B) There is a decrease in the amount of traffic on the roads.
(C) Central heating means there are fewer fires nowadays.
(D) Carbon monoxide is not absorbed so fast.
4. Why are the optimists happy?
(A) People are buying more cars.
(B) There is more carbon dioxide in the North.
(C) They are possibly burning fewer forests in the Southern Hemisphere.
(D) Industry must be doing better.
5. What is the attidude of the author towards the new findings?
(A) He is biased in favor of the South.
(B) He is neutral.
(C) He agrees with the optimists.
(D) He is worried about the North.

Xem lại bài Reading-Comprehension-Lesson 38 và bài Reading-Comprehension-Lesson 39

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