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A、The classification of climate on the basis of temperature. B、The adaptive ability of plants and animals. C、The growing conditi
A、The classification of climate on the basis of temperature. B、The adaptive ability of plants and animals. C、The growing conditi
admin
2013-10-14
53
问题
Climate, more than any other single factor, determines the distribution 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.[8]In the harsh conditions of the tundra, for example, some low growing and a few flowering plants all hug the ground for shelter from icy winds. Animals, despite their ability to move about and find shelter, 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 an 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.[10]Reef corals can survive only in clear warm seawater. Certain organisms 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.
7. What is the passage mainly about?
8. According to the passage, why do some plants on the tundra hug the ground?
9.What can be inferred about the camel and the penguin from the passage?
10.Which of the following may die first if the seawater gets colder?
选项
A、The classification of climate on the basis of temperature.
B、The adaptive ability of plants and animals.
C、The growing conditions of some specialized plants and animals.
D、The effect of climate on the distribution of plants and animals.
答案
D
解析
主旨题。短文开头提到,climate比起其他因素来说更能影响生物的分布(distribution of life),接着分别讲述了气候对动物以及植物分布区域的影响,并举例进行证明,由此可知本文主要讲的是气候对动植物分布的影响,故答案为[D]。
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0
大学英语六级
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