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 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 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. urgentlyE. broad F. behave G. worst H. index I. endure J. extremely K. entertain L. wellM. neighborhood N. act O. environment II. B 12. L 13. I 14. C 15. J 16. E 17. O 18. H
上一篇: 英语六级阅读难点关键句200之二
下一篇: 英语六级阅读难点关键句200之九
My Foreign Teacher 我的外教
国内英语资讯:Roundup: Xi-Trump meeting puts China-U.S. ties back on right path, say experts
体坛英语资讯:Kenya to miss Africa Womens Cup finals after CAF reinstate Equatorial Guinea
国内英语资讯:Spotlight: Xi demonstrates Chinas critical, constructive role in G20
国际英语资讯:Pakistan pledges U.S. envoy support in Afghanistans peace process: foreign ministry
为什么有些地方长毛发有些地方却不长?
国内英语资讯:Xi, Trump reach consensus, agree not to impose new additional tariffs
国际英语资讯:British government found in contempt of parliament over Brexit legal advice
体坛英语资讯:Favre stands for Dortmunds big dreams
为什么你明明不饿,却总想吃东西?科学解释来了!
Living In the Big Cities 生活在大城市
The Best Ways to Spend Holiday 度假的最好方式
One Thing Touched Me 让我感动的一件事
国内英语资讯:China, Portugal agree to seek more cooperation progress
Online Medical Service 网络医疗服务
国内英语资讯:Senior official urges expanding publicity, education on Constitution
国内英语资讯:Vice premier stresses quality development of Confucius Institute
国内英语资讯:Procurator-General stresses balanced development of procuratorial functions
国际英语资讯:S. African president calls for BRICS efforts to improve economic growth
Saying Goodbye 告别
体坛英语资讯:Shandong wins a landslide victory over Tongxi
体坛英语资讯:Burkina Faso pull out as six international teams challenge Kenya in Safari Sevens
体坛英语资讯:Copa Libertadores final postponed after heavy rain
国际英语资讯:Pompeo to attend NATO FM meeting in Belgium
国际英语资讯:Netanyahu says Lebanons Hezbollah plans to occupy part of northern Israel
国税总局发布新规 欠税10万以上将被限制出境
The Princess World 公主世界
国内英语资讯:Commentary: Xis upcoming visit to drive China-Panama ties at full throttle
国际英语资讯:Ukrainian president moves to end friendship treaty with Russia
研究显示 含糖饮料比其他食品更容易导致糖尿病