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  3. Passage Four What might be the mechanism of carbon dioxide causing global warming?

Passage Four What might be the mechanism of carbon dioxide causing global warming?

admin2017-04-20  26
问题 Passage Four
What might be the mechanism of carbon dioxide causing global warming?
选项
答案Carbon dioxide prevents the heat from diffusing．
解析 本题考查细节在第六段第二行“the main heat-trapping gas”。“heat-trapping”意为“将热量困住”或“不让热量轻易散失”，所以可以推断出二氧化碳导致温室效应的基本原理是“罩住了大量热量使之不易散失，从而使得气温升高”，故答案为Carbon dioxide prevents the heat from diffusing。
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