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GRE阅读练习：鸟类和哺乳动物正在走向灭亡

2019-09-04 15:08:00来源：网络

　　为了帮助大家高效备考GRE，新东方在线GRE频道为大家带来GRE阅读练习：鸟类和哺乳动物正在走向灭亡，希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

　　A sanctuary may be defined as a place where Manis passive and the rest of Nature active. Till quiterecently Nature had her own sanctuaries, where maneither did not go at all or only as a tool-using animalin comparatively small numbers. But now, in thismachinery age, there is no place left where mancannot go with overwhelming forces at hiscommand. He can strangle to death all the nobler wild life in the world to-day. To-morrow hecertainly will have done so, unless he exercises due foresight and self-control in the meantime.

　　There is not the slightest doubt that birds and mammals are now being killed off much fasterthan they can breed. And it is always the largest and noblest forms of life that suffer most. Thewhales and elephants, lions and eagles, go. The rats and flies, and all mean parasites, remain.This is inevitable in certain cases. But it is wanton killing off that I am speaking of to-night.Civilized man begins by destroying the very forms of wild life he learns to appreciate mostwhen he becomes still more civilized. The obvious remedy is to begin conservation at anearlier stage, when it is easier and better in every way, by enforcing laws for close seasons,game preserves, the selective protection of certain species, and sanctuaries.

　　I have just defined a sanctuary as a place where man is passive and the rest of Nature active.But this general definition is too absolute for any special case. The mere fact that man has toprotect a sanctuary does away with his purely passive attitude. Then, he can be beneficiallyactive by destroying pests and parasites, like bot-flies or mosquitoes, and by finding antidotesfor diseases like the epidemic which periodically kills off the rabbits and thus starves many ofthe carnivora to death. But, except in cases where experiment has proved his intervention tobe beneficial, the less he upsets the balance of Nature the better, even when he tries to be anearthly Providence.

　　It can be inferred that the passage is

　　A.part of an article in a scientific journal

　　B.extracted from the minutes of a nature club

　　C.part of a speech delivered to an educated audience

　　D.a speech delivered in a court of law

　　E.from a polemical article published in a magazine

　　正确答案

　　C

　　以上就是关于“GRE阅读练习：鸟类和哺乳动物正在走向灭亡”的内容，更多精彩内容，请关注GRE频道!


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