Passage Four [br] What does the author mainly discuss in this passage?Whether th

游客2023-12-02  21

问题 Passage Four [br] What does the author mainly discuss in this passage?

选项

答案 Whether the Earth will turn warmer or cooler.

解析 根据原文各段主旨,文章首段点明全球变暖的同时,地球可能因为冰壳融化而变冷,第二至三段是其研究依据,第四段是其他科学家的观点,最后一段总结,认为冰层融化可能会抵消变暖趋势,可见,文章主题就是讨论地球变暖还是变冷问题,故本题答案为Whether the Earth will turn warmer or cooler。
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