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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
2020-11-14
60
问题
Environment is everything that surrounds us: plants, animals, buildings, country, air, water—in fact everything that can affect us in any way.
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 than any other living creature. He has poisoned the atmosphere and polluted both land and water. He has wasted the earth’ s natural resources. He has killed a lot of precious animals for his own benefits. Since man has done so much damage, it is up to man to try to put matters right.
【R1】______is everything that surrounds us.
Ecology is the science of how【R2】______and plants exist together.
The ecology of an area【R3】______where an environment is undisturbed.
Man is【R4】______of the environment.
Man has killed a lot of precious animals for【R5】______.
【R3】
选项
答案
is in balance
解析
从原文第二段中“Where an environment is undisturbed,the ecology of an area is in balance”可得到答案。
转载请注明原文地址:https://kaotiyun.com/show/0dcK777K
本试题收录于:
大学英语三级B级题库大学英语三级分类
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大学英语三级B级
大学英语三级
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