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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 Ashless and our gardens and woodlands silent and birdless. Man, however much he may 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 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. "
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 farming
答案D
解析 文章第二段，作者提到“this is not the major problem”即暴露在大量杀虫剂中而中毒并不是主要问题，这是不可避免的。对于人口整体来说，应更多地关注吸收少量杀虫剂的危害。A、B、C项并未提及，因此，正确答案为D。
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