2017年6月大学英语六级阅读理解专项练习（2）
距离2017年6月大学英语六级考试还有不到一个半月的时间，已经报名的同学备考一定要抓紧，不要临时抱佛脚。新东方网英语六级频道为大家整理了英语六级阅读理解专项训练习题，天天练习考试不担心。Climate, more than any other single factor, 11 the distribution of life on
Earth. Climatic boundaries establish the limits within which organisms can
survive. Plants, even more than animals, must be 12 adapted to climate in order
to survive. They cannot move about or take shelter but must be equipped to 13
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 14 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 15 limited distribution. Others,
such as bears, are flexible enough to adapt to a 16 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 foraminaters are so sensitive to changes in their 17 that
their presence can be taken as an 18 of sea temperature. Human beings are among
the 19 specialized of all animals and can live almost anywhere. Their clothes
and their homes 20 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
II. B 12. L 13. I 14. C 15. J 16. E 17. O 18. H
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