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  3. Air Pollution refers to the addition of harmful substances to the atmosphere

Air Pollution refers to the addition of harmful substances to the atmosphere

游客2024-02-28  51
问题     Air Pollution refers to the addition of harmful substances to the atmosphere resulting in damage to the environment, human health, and【S1】______of life. One of many forms of pollution, air pollution occurs inside homes, schools, and offices; in cities; across continents; and even【S2】______. Air pollution makes people sick—it causes breathing problems and【S3】______cancer—and it harms plants, animals, and the ecosystems (生态系统) in which they live. Some air pollutants return to earth in the form of acid rain and snow, which destroy【S4】______and buildings, damage crops and forests, and make lakes and streams【S5】______for fish and other plant and animal life.
    Pollution is changing Earth’s atmosphere so that it lets in more harmful radiation from the Sun. At the same time, our polluted atmosphere is becoming a better insulator (绝缘体), which can【S6】______heat from escaping back into space and lead to a rise in global average temperatures. Scientists【S7】______that the temperature increase, referred to as global warming, will affect world food supply, alter sea level, make weather more【S8】______, and increase the spread of tropical disease.
    Although the effects of future【S9】______change are unknown, some report that exaggerated weather conditions may【S10】______affect agriculture, for example, it may lead to severe drought and sharply decreasing agricultural yields in parts of Africa.

A) globally           B) promotes            C) predict           D) unsuitable
E) science            F) dramatically        G) protect           H) prevent
I) quality            J) climate             K) statues           L) significant
M) powerful           N) moderately          O) extreme [br] 【S1】
选项
答案 I
解析 由于前面出现了environment，human health，可见and连接的是三个并列的名词。再从搭配角度看，只有选择quality才能与上下文呼应。本句话的意思是“空气污染指的是有害物质进入大气，从而对环境、人类健康和生活质量造成危害”。
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