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Where do pesticides (杀虫剂) fit into the picture of environmental disease? We have seen that they now pollute soil, water, and foo
Where do pesticides (杀虫剂) fit into the picture of environmental disease? We have seen that they now pollute soil, water, and foo
admin
2012-07-17
33
问题
Where do pesticides (杀虫剂) 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 fish-less and our gardens and woodlands silent and birdless. Man, however much he may like to pretend the contrary, is part of nature. Can he escape a pollution that is now so thoroughly distributed throughout our world?
We know that even single exposures to these chemicals, if the amount is large enough, can cause extremely severe poisoning. But this is not the major problem. The sudden illness or death of farmers, farm workers, and others exposed to sufficient quantities of pesticides are very sad and should not occur. For the population as a whole, we must be more concerned with the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.
Responsible public health officials have pointed out that the biological effects of chemicals are cumulative (积累的) over long periods of time, and that the danger to the individual may depend on the sum of the exposures received throughout his lifetime. For these very reasons the danger is easily ignored. It is human nature 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 physician, Dr. Rene Dubos, "yet some of their worst enemies slowly approach them unnoticed. "
What is the author’s attitude towards the environmental effects of pesticides?
选项
A、Pessimistic.
B、Indifferent.
C、Defensive.
D、Concerned.
答案
D
解析
本题是一道考查作者态度语气类问题。问作者对杀虫剂对环境的影响的态度是什么。利用浏览式阅读和跳跃式阅读法通读全文,我们知道,作者首先描述了杀虫剂对环境的破坏,由此引发感慨,人类不可能不受影响。继而作者指出,不要只看到大剂量的杀虫剂可以杀人,人们应当更关注小剂量杀虫剂进人人体后的潜在作用,日积月累,小剂量的杀虫剂会给人类带来更大的危害,然而人们往往忽视它的危害。所以本题的正确答案是D“作者对杀虫剂污染环境深表忧虑”。
转载请注明原文地址:https://kaotiyun.com/show/NnXO777K
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