历年英语四级考试的阅读理解部分6_大学英语阅读

历年英语四级考试的阅读理解部分6

　　35. The author mentions that people who live in suburban houses _____.

　　do not have access to easy facilities because they live away from the city

　　have to pay a lot of money to employ people to do service work

　　take longer time to know each other because they are a scattered community

　　have to spend more money and time travelling to work every day

　　Passage Four

　　Questions 36 to 40 are based on the following passage.

　　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.