高考英语科普阅读的方法与实例(4)
In the Earths atmosphere there are tiny amounts of gases called greenhouse gases. These gases hold in the heat that comes up from the sun-warmed Earth. As cities have increased in size and population
In the Earths atmosphere there are tiny amounts of gases called greenhouse gases. These gases hold in the heat that comes up from the sun-warmed Earth. As cities have increased in size and population, factories and industries in the world have grown. People need more and more electricity, cars and other things. So more greenhouse gases have been added to the atmosphere. This causes more heat to be trapped than in the past. This is called the greenhouse effect.
1. The subject discussed in the passage is _______.
A. the growing population of the world
B. the global average surface temperature
C. the increasing greenhouse effect
D. the causes of air and water pollution
2. according to a WMO official, it is ________ that should be blamed for global warming.
A. modern factories impressive B. mankind
C. carbon dioxide D. burning fuels
3. The rising of the earth temperature will finally result in _______.
A. the spreading of particular diseases B. air and water pollution
C. extreme climate changes D. loss of life
4. Which of the following is true according to the passage?
A. Air and water pollution is caused by global warming.
B. Greenhouse gases do no good to human beings
C. With the air getting hotter, people need more and more electricity, cars and other things.
D. The average temperature on Earth for 1998 was the warmest according to written records
【答案与解析】本文向我们介绍了由于环境污染而引起的全球变暖的现象。
1. C。主旨大意题。本文讨论的是全球变暖的现象，而造成这种现象的原因是温室效应，文章在最后也对温室效应做了解释，故答案为C。
2. B。事实细节题。根据第四段中的 most of the causes of global warming are due to human action, said Ken Davidson, director of WMOs climate programme department可知答案为B。
3. D。事实细节题。根据第六段中的 Extreme temperatures can directly cause loss of life可知此题的最佳答案为D。
4. D。事实细节题。根据第二段中的 The record, set in 1998, was 14.58 degrees centigrade可知答案D正确。
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