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  3. Pesticides (杀虫剂) Why do pesticides(杀虫剂)fit into the picture of environmental disease? We have seen that they now pollute soi

Pesticides (杀虫剂) Why do pesticides(杀虫剂)fit into the picture of environmental disease? We have seen that they now pollute soi

admin2011-01-05  51
问题                         Pesticides (杀虫剂)
    Why 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 fishless 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(暴露)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(摆脱) 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 本题考查考生的综合判断能力。考的是作者对于杀虫剂对环境影响的态度。本文是一篇议论文，谈的是杀虫剂对环境的污染，以及对人体健康的威胁。文章第一段，作者谈到杀虫剂对环境污染严重。第二段指出，对全民来说，应该更加重视和关心不断被人体吸收的小剂量的慢性污染。第三段又强调了防止杀虫剂对人类的慢性污染是最重要的问题。由此可见，作者深切关注杀虫剂对环境的影响，而选项B漠不关心的，和选项C防御的，明显与原文不符，选项A悲观的，从文中看不出。所以，正确答案是D。
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本试题收录于： 职称英语理工类C级题库职称英语分类
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