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Environment is everything that surrounds us: plants, animals, buildings, country, air, water—in fact everything that can affect
Environment is everything that surrounds us: plants, animals, buildings, country, air, water—in fact everything that can affect
admin
2017-05-22
16
问题
Environment is everything that surrounds us: plants, animals, buildings, country, air, water—in fact everything that can affect us in any way. And environment differs in different parts of the world.
Ecology is the science of how living creatures and plants exist together and depend on each other on the local environment. Where an environment is undisturbed, the ecology of an area is in balance. But if a creature dies out or an alien(相异的) species is introduced, then the ecology of this area will be upset.
Man is a part of the environment and has done more to upset the ecology during his short span on earth than any other living creature. He has poisoned the atmosphere and polluted both land and water. He has wasted the earth’s natural resources with no thought for the future. He has killed a lot of precious animals for his delicacies (精美的食品)on the table and for his elegant overcoats.
Since man has done so much damage, it is up to man to try to put matters right. And the sooner he does something about it, the better.
1)【R1】______ is everything that surrounds us.
2)【R2】______ is the science of how living creatures and plants exist together.
3) The ecology of an area is【R3】______ , where an environment is undisturbed.
4) Man is【R4】______ of the environment.
5) Man has poisoned the atmosphere and【R5】______ both land and water.
【R3】
选项
答案
in balance
解析
由第二段第二句“Where an environment is undisturbed,the ecology of an area is in balance.”可以得到答案。
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大学英语三级A级题库大学英语三级分类
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大学英语三级A级
大学英语三级
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