【备考每日练】GRE阅读题之鸟类和哺乳动物正在走向灭亡

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每日一练

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

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