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Where do pesticides (杀虫剂) fit into the picture of environmental disease? We
Where do pesticides (杀虫剂) fit into the picture of environmental disease? We
游客
2025-03-19
39
管理
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. " [br] It can be concluded from Dr. Dubos’ remarks that______.
选项
A、people find invisible diseases difficult to deal with
B、attacks by hidden enemies tend to be fatal
C、diseases with obvious signs are easy to cure
D、people tend to overlook hidden dangers caused by pesticides
答案
D
解析
本题是一道根据具体细节推断结论类问题。问从杜布斯博士的话中我们可以推断出什么结论。利用查阅式阅读法,我们可以在文章的最后部分找到相关信息。文章指出,杜布斯博士说:“有明显症状的疾病给人印象最深,这是自然的。可是,另一些最凶恶的敌人慢慢向他们走近,他们却没有注意到”。这里“最凶恶的敌人”是比喻说法,意思是指疾病。因此,本题的正确答案应是D“杜布斯的话暗示了人们通常忽视杀虫剂的潜在危害”。
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