2000年1月、6月大学英语四级考试试卷、答案(编辑修改稿)

2000年1月、6月大学英语四级考试试卷、答案(编辑修改稿)内容摘要：

riencing a downswing in riders hip (客运量 )along the lines prising its rail major concern t o Amtrak and its advertising agency DDB Needham， were the long distance wester n routes where ridership had been declining one time， trains w ere the only practical way to cross the vast areas of the were fast， ver， 39。 luxurious， and quite convenient pared to other forms of transportation existing at the ， times change and the automolile became America39。 s standard of ， air travel had easily established itself as the fastest method of traveling great distances .Therefore， the task for DDB Needham was to encourage consumers to consider other aspects of train travel in order t o change their attitudes and increase the likelihood that trains would be consid ered for travel in the portions of the total market were targeted: 1) anxious fliers those concermed with safety， relaxation， and cleanliness and 2) travel lovers those viewing themselves as relaxed， casual， and interested in the travel ecperience as part of their agency then developed a campaign that focused on travel experiences such as freedom， escape， relaxation， and enjoyment of the great western stressed experiences gained by u sing the trains and portrayed western train trips as wonderful tisements showed pictures of the beautiful scenery that could be enjoyed along s ome of the more famous western routes and emphasized the romantic names of some of these trains(Empire Builder， etc.).These ads were strategically placed among family oriented TV shows and programs involving nature and America in order t o most effectively reach target Empire Bu was focused on in one a 15 percent increase in profits on its Chicago to Seattle route. 31. What39。 s the author39。 s purpose in writing this passage? A) To show the inability of trains to pete with planes with respect to speed and convenience. B) To stress the influence of the automobile on America39。 s standard of convenience. C) To emphasize the function of travel agencies in market promotion. D) To illustrate the important role of persuasive muniation in changing consum er attitudes. 32. It can be inferred from the passage that the drop in Amtrak ridership was due to the fact that ______ . A) trains were not suitable for short distance passenger transportation B) trains were not the fastest and most convenient form of transportation C) trains were not as fast and convenient as they used to be D) trains could not pete with planes in terms of luxury and convenience 33. To encourage consumers to travel by train， DDB Needham emphasized ______ . A) the freedom and convenience provided on trains B) the practical aspests of travel C) the adventurous aspects of train trips 考试吧 ()第一个极力推崇人性化服务的综合考试网站。 D) the safety and cleanliness of train trips 34. The train ads were placed among family oriented TV programs involv ing nature and America because ______ . A) they could focus on meaningful travel experiences B) they could increase the effectiveness of the TV programs C) their profits could be increased by some 15 percent D) most travel lovers and nervous fliers were believed to be among the audiences 35. According to the passage， the Empire Builder enjoyed an increase in ridership and profits because ______ . A) the attractiveness of its name and route was effectively advertised B) it provided an exciting travel experience C) its passengers could enjoy the great western outdoors D) it was widely advertised in newspapers and magazines in Chicago and Seattle Questions 36 to 40 are based on the following passage: Why does cream go bad faster than butter? Some researchers think they the answer， and it es down to the structure of the food， not its chemical position a finding that could help rid some processed foods of chemical ream and butter contain pretty much the same substances， so why cream should sou r muchfaster has been a are emulsions tiny globules(小球 )of one liquid evenly distributed throughout difference lies in what39。 s in the globules and what39。 s in the surrounding liquid， says Brocklehurst， who led the cream， fatty globules and what39。 s in the surround ing liquid， says Brocklehurst，who led the cream， fatty globul es drift about in a sea of butter，globules of a watery solution are l ocked away in a sea of bacteria which make the food go bad prefer to li ve in the watery regions of the mixture.”This means that in cream ， the bacteria are free to grow throughout the mixture， ”he the situation is revers ed ， the bacteria are locked away in partments (密封仓 ) buried dee p in the sea of in this way，individual colonies cannot spread and rapidly run out of also slowly poison themselves with their wast e products.”In butter ， you get a self limiting system which stops the bacteri a growing， ”says researchers are already working with food panies keen to see if their products can be made resistant to bacterial attack t hrough alterations to the food39。 s believes it will be pos sible to make the emulsions used in salad cream， for instance， more like that in key will be to do this while keeping the salad cream liquid and not turning it into a solid lump. 36. The significance of Brocklehurst39。 s research is that ______ . A) it suggested a way to keep some foods fresh without preservatives B) it discovered tiny globules in both cream and butter C) it revealed the secret of how bacteria multiply in cream and butter D) it found that cream and butter share the same chemical position 37. According to the sours faster than butter because bacteria_____ . A) are more evenly distributed in cream B) multiply more easily in cream than is butter C) live on less fat in cream than in butter 考试吧 ()。