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  3. Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil, water, and food, tha

Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil, water, and food, tha

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问题    Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil, water, and food, that they have the power to make our streams fishless and our gardens and woodlands silent and birdless.
   Man, however much he may like to【C1】______the Contrary, is part of nature. Can he【C2】______a pollution that is now so thoroughly【C3】______throughout our world?
   We know that even single exposures to these【C4】______, if the amount is large enough, can cause extremely severe【C5】______. But this is not the major problem. The sudden illness of death of farmers, farm workers, and others【C6】______to sufficient quantities of pesticides are very sad and should not【C7】______.  For the population as a【C8】______, we must be【C9】______concerned with the【C10】______effects of absorbing small amounts of the pesticides that【C11】______pollute our world.
【C12】______public health officials have pointed out that the biological effects of chemicals are【C13】______over long periods of time, and that the danger to the【C14】______may depend on the sum of the exposures【C15】______throughout his lifetime. For these very reasons the danger is easily【C16】______It is human【C17】______to shake off what may seem to us a threat of future disaster. "Men are naturally most impressed by diseases which have obvious signs," says a wise【C18】______, Dr. Rene Dubos, "yet some of their worst enemies slowly【C19】______them【C20】______."
【C20】
选项 A、unnoticed
B、unattended
C、unnurtured
D、unattempted
答案A
解析 在此要选用A，因为这里是指最恶毒的敌人悄悄靠近受害者而不为其所注意。 unattended没人出席的，没人陪伴的，不被注意的，无人理会的没人管的；没人照顾的；无人理会的警告信号unattended warning signals unnoticed未被注意的，被忽视的unattempted未经尝试的unnurtured未受教育的，未培育的特别要注意unattended和unnoticed的区别：拿“视而不见”这个成语来说事的话，或拿“视而不见”来理解此二词的话，我们认为前者真正是视而不见，视而不采取行动，虽视却不去照料它，而后者却是因为无视所以不见，无视所以没有采取行动，而无视是因为来者非以显性现身，来者藏匿不露其形不显其身而来。
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