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完形填空(共20小题;每小题1.5分,满分30分)Inthepast,mandidn’thavetothinkabouttheprotectionofhisenvironment.Therewerefewpeopleontheearth,andnaturalresourcesseemedtobe1.Todaythingsare2,a

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完形填空(共20小题;每小题1.5分,满分30分)
In the past, man didn’t have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be   1  .
Today things are  2  , and the world has become too  3  . We’re using up our natural resources too quickly, and at the same time we are    4  our environment with dangerous chemicals. If we continue to do this, human life on the earth    5 survive.
Everyone today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing  7 , more and more fish are caught. We know that if too many trees are cut down, 8  will disappear and nothing will grow on the land. Yet, we 9  to use bigger and more powerful machines to  10  more and more trees.
We know that if rivers are polluted with waste products from factories, we’ll die.   11  , in most countries wastes are   12  put into rivers or into the sea, and there are   13   laws to stop this.
We know, too, that if the   14   of the world continues to rise at the present rate, in a few years there will not be enough  15  . What can we do to solve these problems?
If we eat more vegetables and less  16  there will be more food available for every one. Land that is used to grow crops 17  five times more people than land where animals are kept.
Our natural resources will    18   longer if we learn to recycle them.
The world population will not rise so quickly if people use modern methods of birth 19  .
Finally, if we educate people to think about the problems, we shall have a better and cleaner   20 in the future.
小题1:
A.beautiful B.unlimited C.rare D.valuable
小题2:
A.common B.the same C.changeable D.different
小题3:
A.crowded B.small C.dirty D.busy
小题4:
A.protecting B.saving C.polluting D.fighting
小题5:
A.may not B.will not C.shall not D.could not
小题6:
A.wonders B.realizes C.considers D.discovers
小题7:
A.poles B.boats C.methods D.ideas
小题8:
A.mountains B.seas C.trees D.forests
小题9:
A.continue B.have C.ought D.go on
小题10:
A.cut away B.cut off C.cut up D.cut down
小题11:
A.Thus B.However
C.Generally speaking D.Therefore
小题12:
A.still B.even C.also D.certainly
小题13:
A.too many B.a few C.some D.few
小题14:
A.production B.pollution C.population D.revolution
英语
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小题15:

小题1:B
小题2:D
小题3:A
小题4:C
小题5:B
小题6:B
小题7:C
小题8:D
小题9:A
小题10:D
小题11:B
小题12:A
小题13:D
小题14:C
小题15:C
小题16:B
小题17:A
小题18:D
小题19:A
小题20:C


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答案和解析

小题1:B
小题2:D
小题3:A
小题4:C
小题5:B
小题6:B
小题7:C
小题8:D
小题9:A
小题10:D
小题11:B
小题12:A
小题13:D
小题14:C
小题15:C
小题16:B
小题17:A
小题18:D
小题19:A
小题20:C