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What is the main idea of the passage?
What is the main idea of the passage?
admin
2016-11-13
83
问题
What is the main idea of the passage?
Climate, more than any other single factor, determines distributions of life on Earth. Climatic boundaries establish the limits within which organisms can survive. Plants, even more than animals, must be well adapted to climate in order to survive. They cannot move about or take shelter but must be equipped to endure whatever weather conditions are likely to occur. In the harsh conditions of tundra, for example, low growing mosses, lichens, and a few flowering plants all hug the ground for shelter from icy winds.
Animals, despite their ability to move about and find shelters, are just as much influenced by climate as plants are. Creatures such as the camel and the penguin are so highly specialized that they have extremely limited distribution. Others, such as bears, are flexible enough to adapt to a broad range of climates. Ocean-dwelling organisms are just as sensitive to climatic changes—in this case temperature and salinity—as land animals. Reef corals can survive only in clear warm seawater. Certain foraminifers are so sensitive to changes in their environment that their presence can be taken as an index of sea temperature. Human beings are among the least specialized of all animals and can live almost anywhere. Their clothes and their homes act as a sort of "miniature climate" that can be taken with them everywhere.
选项
A、They are so highly specialized that they have as extremely limited distribution.
B、They are flexible enough to adapt to a broad range of climates.
C、Their distributions are mainly determined by temperature and clearness.
D、They are no less sensitive than land animals in terms of their response to climate changes.
答案
D
解析
选项D中的no less...than是对原文as...as的同义转换,表示“与……一样”,故D正确。选项A和B所谈内容在文中分别对应的是the camel and the penguin和bears,而不是ocean—dwelling organisms。选项C的clearness应为salinity。
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0
专业英语四级
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