题目内容
阅读理解
There are about three quarters of a ton of termites (白蚊) for every person on Earth. It now proves that these insects may be helping to change climate and affect man's life.
For years scientists have been saying that carbon dioxide (二氧化碳) sent into the atmosphere by the burning of oil might lead to the rise in temperatures of the whole earth, which was called the greenhouse effect in which the gas prevents the escape of heat into outer space. Now an international team of researchers has discovered that termites produce more than twice the carbon dioxide than oil burning does. And this production, which comes from the insects' eating and digesting of different kinds of vegetables and wood, has risen greatly. This is because man has cut so many trees in order to open more land and thus has supplied large quantities of food for the critters in the form of tiny pieces of wood.
Scientists pay more attention to the burning of oil because it is continuing to increase and so far no effective measures have been taken to reduce the amount of carbon dioxide produced in this way: Production by termites, on the other hand, will not increase much more.
1.From the passage we know that “the greenhouse effect” is an effect in which ________.
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A.low temperatures are created by using a house
B.heat is prevented from escaping outside
C.the house is made green in order to keep heat
D.everything is kept green in a house
2.Which of the following are the three words that refer nearly to the same thing in the passage?
[ ]
A.termites, critters, insects
B.food, production, effect
C.carbon dioxide, the gas, atmosphere
D.climate, temperature, heat
3.Which of the following statements is true?
[ ]
A.Carbon dioxide may make the Earth warmer because it lets the heat escape into outer
B.As carbon dioxide keeps heat form escaping into outer space, the Earth may become warmer.
C.Carbon dioxide may escape into the greenhouse so that the Earth may become warmer.
D.Carbon dioxide in the atmosphere carries heat into outer space so as to change the climate.
4.Which of the following statements is NOT true?
[ ]
A.The burning of oil produces much less carbon dioxide than termites do.
B.The burning of oil is increasing.
C.What scientists worry more about is the burning of oil.
D.It is the production by termites that caused scientists' attention.
5.The best title for this passage might be ________.
[ ]
A.How Greenhouse Works
B.The Result of Burning Fuel
C.Why Carbon Dioxide Can Affect the Climate
D.The Effect of Termites on the Climate
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