全国2004年7月高等教育自学考试英语科技文选试题

will be flown. Two will be destroyed on the ground in structural tests. The third one will be tested in the air.
　　Two kinds of ground strength tests are carried out. The first is to find the resistance to loading of thewings, tail, etc. until they reach their maximum load and collapse. The other test is for fatigue strength.
Relatively small loads are applied thousands of times. Each may be well under what the structure could stand　as a single load, but many repetitions can result in collapse. One from of this test is done on the passenger　cabin.　
　　It is filled with air at high pressure as for high-altitude flying and completely submerged in a large tank　of water while the test is going on. The surrounding water prevents the cabin from bursting like a bomb if　there is a failure.　
　　When a plane has passed all the tests it can get a government certificate of airworthiness, without which　it is illegal to fly, except for test flying.　
　　Making the working parts reliable is as difficult as making the structure strong enough. The flying
controls, the electrical equipment, the fire precautions, etc. must not only be light in weight, but must work　both at high altitudes where the temperature may be below freezing point and in the hot air of an airfield in　the tropics.　
　　To solve all these problems the aircraft industry has a large number of research workers, with elaborate
laboratories and test houses, and new materials to give the best strength in relation to weight are constantly　being tested.

47. The two main requirements of aircraft design are ______.
A. speed and cheapness
B. reliability and passenger comfort
C. making things both light and dependable
D. ability to stay up in the air and avoid breakdowns

48. The maximum possible weight of an aircraft is determined by ______.
A. the enigne power B. the amount of freight room
C. the number of passengers D. international regulations

49. The stress man’s job is to calculate ______.
A. how safe the plane is
B. how strong each part must be
C. what height the plane will fly at
D. the amount of luggage each passenger may carry

50. The first three aeroplanes of a new type ______.
A. are all destroyed B. do not fly
C. are later broken up for spare parts

D. are used for testing purposes

51. The passenger cabin test in water is designed to ______.
A. make sure the plane would be safe if it landed in water
B. test fatigue strength
C. see of the cabin will burst like a bomb
D. keep the cabin cool转贴于：自学考试_博学在线

：yunyun

　　Surprisingly, no one knows how many children receive education in English hospitals, still less the
content or quality of that education. Proper records are just not kept.　
　　We know that more than 850,000 children go through hospital each year, and that every child of school　age has a legal right to continue to receive education while in hospital. We also know there is only one　hospital teacher to every 1,000 children in hospital.　
　　Little wonder the latest survey concludes that the extent and type of hospital teaching available differ a　great deal across the country. It found that half the hospitals in England which admit children have no teacher.
　　A further quarter have only a part-time teacher. The special children’s hospitals in major cities do best;general hospitals in the country and holiday areas are worst off.　
　　From this survey, one can estimate that fewer than one in five children have some contact with a
hospital teacher－and that contact may be as little as two hours a day. Most children interviewed were
surprised to find a teacher they had not been prepared for it by parents or their own school. If there was a　teacher they were much more likely to read books and do maths or number work; without a teacher they　would only play games.　
　　Reasons for hospital teaching range from preventing a child from falling behind and maintaining the
habit of school to keeping a child occupied, and the latter is often all the teacher can do. The position and　influence of many teachers was summed up when referred to them as ‘the library lady’ or just ‘the helper’.
　　Children tend to rely on concerned school friends to keep in touch with school work. Several parents　spoke of requests for work being ignored or refused by the school. Once back at school, children rarely get　extra teaching, and are told to catch up as best they can.
Many short-stay child-patients catch up quickly. But schools do very little to ease the anxiety about
falling behind expressed by many of the children interviewed.

52. The writer of this article points out that ______.
A. every child in hospital receives some teaching
B. not enough is known about hospital teaching
C. hospital teaching is of poor quality
D. many children pass through hospital each year

53. This latest survey found that hospital teaching is provided ______.
A. for the whole of the usual school day
B. in every children’s hospital in the country
C. for a small proportion of children
D. by full