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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
2025-03-21
16
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] Which of the following is closest in meaning to the sentence "Man, ...is part of nature. "(Lines 3~4, Para. 1)?
选项
A、Man appears indifferent to what happens in nature.
B、Man acts as if he does not belong to nature.
C、Man can avoid the effects of environmental pollution.
D、Man can escape his responsibilities for environmental protection.
答案
B
解析
本题是一道句子含义类问题。问下面哪个选项与文章第一段中的句子“Man,however much he may like to pretend the contrary,is part of nature”的意思最接近。此句是一个带有分割式结构的句子,根据文章上下文,人类不管他们可能多么喜欢装作不是大自然的一部分,他们终究还是大自然的一部分。由此我们可以推断出本题的正确答案应是B“人类常常表现出似乎自己不是属于大自然的”。
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