5.阅读理解 第三篇
The Importance of Imagination
　　It is pleasant to lie on the glass on a spring day and gaze up at the clouds, seeing in them first a face, then an animal, then another object and another. In these reveries we are doing one of the famous experiments carried on in the psychological laboratory. There the person taking the test must look not at clouds but at ink blots （污渍） like those pictured here and write down, within a given time, as many as possible of the things he sees. It is imagination that enables one to see things not actually in the inkblot or the cloud.
　　Thinking, when it concerns objects or events outside our personal experience, is imagination. Sometimes imagination is defined as the making of new combinations of old experiences. Even the writer of the most fantastic tales puts elements of past experience into his characters. Though he may write about one-eyed monsters, three-legged men or Lilliputians, his characters throughout are made of elements that we all know. Eyes, legs, smallness are not new. It is only the combination that is new.
　　Imagination plays an important part in the kind of thinking which solves a practical problem. The fancies, which enable an Edison to give the world an electric light, represent imagination brought into control and made to work to a useful end.
　　In almost any line of endeavor, imagination of the kind which gets results is necessary. It is made up of two factors. First is the ability to think of new combinations of experiences. Second is the ability to select those combinations that are best. The person who has only the first of these is a flounder and a failure. The person who can criticize but cannot strike out new ideas is equally handicapped. Modern scientific method added the third requisite－experiment or test to answer the question "will it work"? All progress man achieves depends on how he applies and profits from the use of these processes.
　　41. In a psychological laboratory, a person can _________.
　　A. gaze up at clouds
　　B. see a face and an animal
　　C. write down many things
　　D. lie on the grass
　　42. According to the passage, which of the following statements is true? _________.
　　A. Thinking sometimes can mean imagination.
　　B. Thinking is imagination.
　　C. Imagination enables a person to see things actually.
　　D. Imagination enables a writer to have old experiences.
　　43. According to the author, a writers success depends on his _________.
　　A. characters
　　B. personal experience
　　C. thinking
　　D. imagination
　　44. A flounder refers to a person who is _________.
　　A. unable to think of new combinations of experiences, but able to select the best combinations
　　B. able to think of new combinations of experiences but unable to select the best combinations
　　C. unable to select the best combinations
　　D. able to select the best combinations
　　45. It can be inferred from the passage that _________.
　　A. experiments about imagination cannot be made in a psychological laboratory
　　B. application of experiments plays an important part in mans progress
　　C. the two factors of imagination can be separated from each other
　　D. it is necessary for a scientist to solve a practical problem
　　6.补全短文
Advertisement
　　1. Many adults in the United States can remember crying the nursery rhyme in the street "Hot cross buns!" （46） ______
　　2. Written advertisements probably began with hieroglyphics more than three thousand years ago but only a few people could read these symbols. So merchants made signs with pictures of their tools over their doors to identify their businesses.
　　3. In the time of the Roman Empire, wall paintings were a popular form of advertisement. （47） ______ People often advertised a house for rent or a freshwater bath in this way, too.
　　4. Today, large wall signs are still used for outdoor advertising. But outdoor advertising is only a small fraction of the total advertising. About forty per cent of all ads are printed in daily newspapers. （48） ______ Some people think they are the best form of advertising because radio broadcasts reach almost everyone in a nation.
　　5. （49） ______ However, usually only large companies can advertise on a national network, because TV commercials shown across the country can cost many thousands of dollars.
　　6. Then there are ads that are almost part of daily living. （50） ______ Ads are painted on the trucks that deliver products people are buying or selling.
　　A. Advertisements in magazines and on television reach many people, too.
　　B. An ad for a play, or some other performance was painted on part of a building or on a wall around a city. 　C. But only a few people realize this was an early form of advertising.
　　D. If you use public transportation, you will see large printed ads, called car cards, on buses and taxis and in train.
　　E. Advertisements can be seen everywhere.
　　F. Radio commercials also provide this kind of information.
　　7.完形填空
Chemical Plution
　　Where do pesticides （杀虫剂） fit into the picture of environmental disease? We have seen that they now （51） ______ soil, water, and food, that they have the （52） ______ to make our streams fishless and our gardens and wood-lands silent and birdless. Man, （53） ______ 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 （54） ______ problem. The （55） ______ 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 （56） ______ the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.
　　Responsible public health officials have （57） ______ that the biological effects of chemicals are cumulative over （58） ______ periods of time, and that the danger （59） ______ the individual may depend on the sum of the exposures received throughout his lifetime. For these very reasons the danger is easily （60） ______. It is human nature to shake off what may seem to us a （61） ______ of future disease. "Men are naturally most （62） ______ by diseases which have （63） ______ signs," says a wise physician, Dr. Rene Dubos, "（64） ______ some of their worst enemies （65） ______ approach them unnoticed."
　　51. A. clean       B. clear       C. pollute       D. waste
　　52. A. power       B. strength      C. usage       D. way
　　53. A. however      B. but       C. although      D. though
　　54. A. minor       B. major       C. great       D. big
　　55. A. frightening      B. unusual      C. sudden      D. rare
　　56. A. with       B. about      C. on       D. at
　　57. A. found    B. discovered    C. suggested   D. pointed out
　　58. A. long       B. short      C. some       D. many
　　59. A. of       B. to        C. for       D. with
　　60. A. ignored       B. forgotten      C. solved     D. noticed
　　61. A. threat       B. danger       C. dream       D. fright
　　62. A. noticed     B. impressed    C. puzzled    D. troubled
　　63. A. obvious       B. hidden       C. no       D. some
　　64. A. and       B. for       C. yet       D. until
　　65. A. quickly       B. suddenly      C. often      D. slowly