Climate, more than any other single factor, __1__the distribution of life on Earth. Climatic boundaries establish the limits within which organisms can survive. Plants, even more than animals, must be__2__ adapted to climate in order to survive. They cannot move about or take shelter but must be equipped to __3__ whatever weather conditions are likely to occur. In the harsh conditions of the far north of the earth, for example, low growing mosses, lichens, and a few flowering plants all hold to the ground for shelter from icy winds.
Animals, despite their __4__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 __5__ limited distribution. Others, such as bears, are flexible enough to adapt to a __6__range of climates.. Ocean-dwelling organisms are just as sensitive to climatic changesin this case temperature and salinityas land animals. Reef corals can survive only in clear warm seawater. Certain foraminaters are so sensitive to changes in their__7 __that their presence can be taken as an __8__ of sea temperature. Human beings are among the __9 __ specialized of all animals and can live almost anywhere. Their clothes and their homes __10__as a sort of miniature climate that can be taken with them everywhere.
A. least B. determines c. ability D. urgently
E. broad F. behave G. worst H. index
I. endure J. extremely K. entertain L. well
M. neighborhood N. act O. environment
I. B 2. L 3. I 4. C 5. J 6. E 7. O 8. H
英语语法:副词及其基本用法
英语语法:none, few, some, any, one, ones的区别
英语语法:the + 最高级 + 比较范围
英语语法:指示代词
英语语法:不定冠词的用法
英语语法:anyone/any one;no one/none;every/each的区别
英语语法:one/another/the other的区别
英语语法:物主代词
和more有关的词组语法讲解
英语语法:代词比较辩异 one,that 和it
英语语法:代词的指代问题
英语语法:冠词的位置
英语语法:相互代词
一般将来时语法应用知识
冠词用法的速记口诀
兼有两种形式的副词
英语语法:人称代词之主、宾格的替换
few, little, a few, a little的区别
现在进行时语法知识要点
英语语法:比较级形容词或副词 + than
接动名词作宾语的动词速记口诀
英语语法:every , no, all, both, neither, nor的区别
英语语法:零冠词的用法
过去进行时的语法知识
以-ly结尾的形容词
中考英语选择填空得分要点:注意特殊的语法现象
英语语法:疑问代词
英语语法:冠词与形容词+名词结构
系动词的语法应用
现在进行时语法知识点
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