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[TPO阅读] TPO41托福阅读文本及答案解析

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发表于 2016-5-26 11:31:26 | 显示全部楼层 |阅读模式
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  全面了解托福阅读的题型和解题方法也都是非常重要的环节。那么,在以下内容中就为大家带来TPO41中托福阅读文章题目及相关解析内容,希望能为大家的备考带来帮助。
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1. According to paragraph 1, in what major respect are Venus and Earth different from each other?【事实信息题】
A. Whether carbon dioxide v/as present in their original atmospheres
B. How thin their original atmospheres were
C. What their present-day atmospheres mainly consist of
D. How long ago they first developed an atmosphere
答案:C
解析:从原文前两句话“Earth has abundant water in its oceans but very little carbon dioxide in its relatively thin atmosphere. By contrast, Venus is very dry and its thick atmosphere is mostly carbon dioxide.”可看出,地球大气层含有很少的二氧化碳,而金星的大气层中却含有大量二氧化碳。所以C选项正确,地球和金星的区别就是如今大气层的组成。
2. Why does the author mention "present-day volcanoes on Earth"? 【修辞目的题】
A. To provide an example of an important difference between present-day Venus and present-day Earth
B. To help explain why Earth's atmosphere still contains traces of sulfur dioxide but Venus' does not
C. To indicate one source of information about the likely composition of the original atmospheres of Venus and Earth
D. To account for the fact that Earth’s water supply no longer comes primarily from impacting comets
答案:C
解析:根据原文“These gases should therefore have been important parts of the original atmospheres of both Venus and Earth.”,作者提及"present-day volcanoes on Earth"是为了说明金星和地球原始的大气组成中的sources就是前文说的“water vapor, carbon dioxide, and sulfur dioxide.”,所以C选项正确。

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