题目内容

10.We have seen that pesticides(杀虫剂) now pollute soil,water and food,and that they have the power to make our rivers fishless and our gardens and woodlands silent and birdless.Man,however much he may like to pretend the opposite,is part of nature.Can he escape a pollution that is now so thoroughly spread throughout our world?
We know that even single exposure 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 enough quantities of pesticides is very sad and should not happen.For the population as a whole,we must pay more attention to the delayed effects of taking in small amounts of the pesticides that unseeably pollute our world.
Responsible public health officials have pointed out that the biological effects of chemicals are increasing in amount over long periods of time,and that the danger to the man may depend on the amount of the exposures received throughout his lifetime.For these very reasons people easily take no notice of the danger.It is human nature to shake off what may seem to us a 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 come near them unnoticed."

62.Which of the following can best summarize the first paragraph of this passage?_C
A.Man has a responsibility to bear for what has happened to nature.
B.Possibly man will escape the effects of environmental pollution.
C.Pesticide-caused pollution may also kill people.
D.Man acts as if he did not belong to nature.
63.People do not give enough attention to the delayed effects of exposure to chemicals becauseD.
A.imited exposure to them does little harm to people's health
B.the present is more important to them than the future
C.humans are able to bear small amounts of poisoning
D.the danger does not become seen clearly and immediately
64.Which of the following statements is true according to the passage?_A
A.A person exposed to pesticides even once may get seriously poisoned.
B.Birds are less sensitive to pesticides than humans.
C.The effects of pesticides on humans do not last as long as on fish.
D.Taking in small amounts of pesticides will not cause serious results.
65.We can conclude from what Dr Dubos says thatB.
A.people usually find hidden diseases difficult to deal with
B.people fail to notice hidden dangers caused by pesticides
C.diseases with obvious signs are mostly easy to cure
D.attacks by hidden enemies are likely to be deadly.

分析 文章讲述了杀虫剂污染土壤,水和食物.化学物品在悄悄地危害人类健康.

解答 62-65 CDAB
62题答案是C.细节理解题.根据Can he escape a pollution that is now so thoroughly spread throughout our world?人类能逃脱遍布世界的污染吗?暗指污染也会杀害人类.
63题答案是D.细节理解题.根据we must pay more attention to the delayed effects of taking in small amounts of the pesticides that unseeably pollute our world.我们必须重视后续影响,小剂量的杀虫剂在不可见地污染着我们的世界.故选D.
64题答案是A.细节理解题.根据We know that even single exposure to these chemicals,if the amount is large enough,can cause extremely severe poisoning可知如果人类接触大量的杀虫剂,会严重地中毒.故选A.
65题答案是B.推理判断题.根据."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 come near them unnoticed."人类最坏的敌人(疾病)在无意识中慢慢靠近,即人类疏于认识到杀虫剂引起的危险.故选B.

点评 这是一篇健康环保类阅读.题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.

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63.The underlined word"featured"in the 3rd paragraph can be replaced byB.
A.advertised                    B.shown
C.involved                      D.affected
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A.Textbooks.                   B.History books.
C.An ancient map.              D.Zheng's logbooks.
65.With most of Zheng's logbooks lost,people today are not sure ofA.
A.the exact places Zheng He reached on his voyages
B.the scale of the fleet on Zheng He's voyages
C.the times of Zheng He's successful voyages
D.the purpose of Zheng He's voyages
66.Which of the following is a definite fact about the Cape of Good Hope?A
A.It was discovered by Vasco da Gama.
B.It was discovered by the Chinese.
C.It was discovered by Christopher Columbus.
D.It was discovered by Ferdinand Magellan.

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