四六级

　　阅读理解部分的分值占整个英语四级考试的35%，占比很大。在四级备考中，小编建议考生们每天进行英语四级阅读模拟题的练习，下面是小编为大家分享的一道模拟练习题与考点解析，希望对各位考生熟练英语四级阅读技巧有帮助！

　　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 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 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, farmworkers, and others exposed to sufficient quantities of pesticides is 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 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."

　　​1.Which of the following is closest in meaning to the sentence "Man…is part of nature" (Para. 1, Lines 3-4)?

　　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 effects of pesticides?

　　2. What is the author"s attitude toward the environmental effects of pesticides?

　　A. Pessimistic

　　B. Indifferent

　　C. Defensive

　　D. Concerned

　　3. In the author"s view, the sudden death caused by exposure to large amounts of pesticides _____.

　　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

　　4. People tend to ignore the delayed effects of exposure to chemical because _____.

　　A. limited exposure to them does little harm to people"s health

　　B. the present is more important for them than the future

　　C. the danger does not become apparent immediately

　　D. humans are capable of withstanding small amounts of poisoning

　　5. It can be concluded from Dr. Dubos remarks that _____.

　　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

　　四级阅读参考答案：

　　1-5 BDACD

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