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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
admin
2011-01-05
55
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. "
In the author’s view, the sudden death caused by exposure to large amounts of pesticides______
选项
A、is not the worst of the negative consequences resulting from the use of pesticides
B、now occurs most frequently among all accidental deaths
C、has sharply increased so as to become the center of public attention
D、is unavoidable because people can’t do without pesticides in fanning
答案
A
解析
本题考查考生把握细节的能力。考的是依据作者观点,大量接触杀虫剂造成的突然死亡的原因。而第二段第一句话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. 直接提供了答案。所以,正确答案是A。
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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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