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1、2021河北专升本考试考试模拟卷（9）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.The dog has always been considered man’ s best friend. Always noted for being particularly faithful in watching over children, he also has his place by the fireside, in the cow pasture, on the sheep
2、range(放牧区), and beside the hunter in forest. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the principal motive power, before being lately displaced by the plane and helicopter. Because he howls or whines in the presence of impendi
3、ng death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men. Actually, the basis for these beliefs lies in the hound’ s sensibility to people’ s feelings and his superior hearing ability and sense of smell, which en
4、able him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed by his master. The dog’s major contribution, however, has been to medical research. Both his diet and his structure are comparable
5、 to those of the human being, and so he has been the subject of countless demonstrations and experiments. Open-heart surgery has been made possible largely because of the dog. But his sacrifice has repaid his own species as well by safeguarding it from rabies (狂犬病), distemper, and other diseases.In
6、the polar regions, the dog mainly （）Acarried suppliesBprovided companionshipCtracked preyDherded caribou(驯鹿)2.The dog has always been considered man’ s best friend. Always noted for being particularly faithful in watching over children, he also has his place by the fireside, in the cow pasture
7、, on the sheep range(放牧区), and beside the hunter in forest. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the principal motive power, before being lately displaced by the plane and helicopter. Because he howls or whines in the pres
8、ence of impending death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men. Actually, the basis for these beliefs lies in the hound’ s sensibility to people’ s feelings and his superior hearing ability and sense of
9、smell, which enable him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed by his master. The dog’s major contribution, however, has been to medical research. Both his diet and his structure
10、 are comparable to those of the human being, and so he has been the subject of countless demonstrations and experiments. Open-heart surgery has been made possible largely because of the dog. But his sacrifice has repaid his own species as well by safeguarding it from rabies (狂犬病), distemper, and oth
11、er diseases.The article does not say whether the scientists experiments with dogs have（）Abenefited animals other than dogsBserved manChelped other dogsDcontributed to medical knowledge3.The dog has always been considered man’ s best friend. Always noted for being particularly faithful in watch
12、ing over children, he also has his place by the fireside, in the cow pasture, on the sheep range(放牧区), and beside the hunter in forest. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the principal motive power, before being lately d
13、isplaced by the plane and helicopter. Because he howls or whines in the presence of impending death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men. Actually, the basis for these beliefs lies in the hound’ s sensibilit
14、y to people’ s feelings and his superior hearing ability and sense of smell, which enable him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed by his master. The dog’s major contribu
15、tion, however, has been to medical research. Both his diet and his structure are comparable to those of the human being, and so he has been the subject of countless demonstrations and experiments. Open-heart surgery has been made possible largely because of the dog. But his sacrifice has repaid his
16、own species as well by safeguarding it from rabies (狂犬病), distemper, and other diseases.The dog has been of most value to man m the development of （）Aa treatment for rabiesBopen-heart surgeryCa cure for distemperDall of the above4.The dog has always been considered man’ s best friend. Always n
17、oted for being particularly faithful in watching over children, he also has his place by the fireside, in the cow pasture, on the sheep range(放牧区), and beside the hunter in forest. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the
18、principal motive power, before being lately displaced by the plane and helicopter. Because he howls or whines in the presence of impending death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men. Actually, the basis for these
19、beliefs lies in the hound’ s sensibility to people’ s feelings and his superior hearing ability and sense of smell, which enable him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed
20、by his master. The dog’s major contribution, however, has been to medical research. Both his diet and his structure are comparable to those of the human being, and so he has been the subject of countless demonstrations and experiments. Open-heart surgery has been made possible largely because
21、of the dog. But his sacrifice has repaid his own species as well by safeguarding it from rabies (狂犬病), distemper, and other diseases.Dogs are similar to human beings in（）AsizeBstructureCtemperamentDappearance5.The dog has always been considered man’ s best friend. Always noted for being partic
22、ularly faithful in watching over children, he also has his place by the fireside, in the cow pasture, on the sheep range(放牧区), and beside the hunter in forest. He is easy to train, works hard, and often performs astonishing feats. And in the frozen polar regions he was once the principal motive powe
23、r, before being lately displaced by the plane and helicopter. Because he howls or whines in the presence of impending death, the dog was once thought to have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men. Actually, the basis for these beliefs lies in the h
24、ound’ s sensibility to people’ s feelings and his superior hearing ability and sense of smell, which enable him to detect signs hidden from human observation. His record of saving lives is outstanding, for he often gives warning of fire and other dangers not noticed by his master. The do
25、g’s major contribution, however, has been to medical research. Both his diet and his structure are comparable to those of the human being, and so he has been the subject of countless demonstrations and experiments. Open-heart surgery has been made possible largely because of the dog. But his s
26、acrifice has repaid his own species as well by safeguarding it from rabies (狂犬病), distemper, and other diseases.The dog has always been noted for,（）Aprotecting childrenBassisting shepherdsChelping huntersDherding cattle6.Passage Two Among the question of design, construction, and operation remaining
27、 to be solved before commercial airliners travel faster than sound is the difficult problem of sonic boom (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速). A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of
28、 an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but because these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does
29、just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pressed air-a shock wave-builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat. Can sonic booms be eliminated The answer is a categorical negative-they are an innerent(内在的
30、) part of supersonic flight-but the sonic boom probably can be reduced; government and private research is now under way to improve understanding of the sonic boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come rata service.Before commercial airl
31、iners travel faster than sound, problems must 0e solved regarding （）AdesignBConstructionCoperationDall of the above7.Passage Two Among the question of design, construction, and operation remaining to be solved before commercial airliners travel faster than sound is the difficult problem of sonic boo
32、m (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速). A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but bec
33、ause these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pres
34、sed air-a shock wave-builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat. Can sonic booms be eliminated The answer is a categorical negative-they are an innerent(内在的) part of supersonic flight-but the sonic boom probably can be reduced; government and private research
35、is now under way to improve understanding of the sonic boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come rata service.Research is under way to （）Adiscover what causes the sonic boomBfind a means of eliminating the sonic boomCproduce the sonic b
36、oom at low altitudesDreduce the sonic boom to tolerable levels8.Passage Two Among the question of design, construction, and operation remaining to be solved before commercial airliners travel faster than sound is the difficult problem of sonic boom (声震) , the explosive sound generated when an object
37、 moves through the air at supersonic speed(超音速). A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but because these disturbances travel at the speed of sound,
38、 they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pressed air-a shock wave-builds up and is thrown off like
39、 the wave ;hat spreads from the bow of a speedboat. Can sonic booms be eliminated The answer is a categorical negative-they are an innerent(内在的) part of supersonic flight-but the sonic boom probably can be reduced; government and private research is now under way to improve understanding of the soni
40、c boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come rata service.An appropriate title for this passage would be （）AThe Sonic BoomBAir and Its EffectsCFaster Than SoundDProblems Facing Aviation Today9.Passage Two Among the question of design, co
41、nstruction, and operation remaining to be solved before commercial airliners travel faster than sound is the difficult problem of sonic boom (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速). A sound is a pressure disturbance: a sonic boom, like other
42、 explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but because these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to g
43、et out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pressed air-a shock wave-builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat. Can sonic booms be eliminated The answer is a categorica
44、l negative-they are an innerent(内在的) part of supersonic flight-but the sonic boom probably can be reduced; government and private research is now under way to improve understanding of the sonic boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come
45、rata service.A sonic boom is like every sound in that it is （）AexplosiveBcaused by compressed tarCa pressure disturbanceDshock wave10.Passage Two Among the question of design, construction, and operation remaining to be solved before commercial airliners travel faster than sound is the difficult pro
46、blem of sonic boom (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速). A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in
47、pressure, but because these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of
48、suddenly com pressed air-a shock wave-builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat. Can sonic booms be eliminated The answer is a categorical negative-they are an innerent(内在的) part of supersonic flight-but the sonic boom probably can be reduced; government and
49、private research is now under way to improve understanding of the sonic boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come rata service.Subsonic flight does not produce a sonic boom, because it （）Adoes not disturb existing pressuresBstays behind its disturbanceCdoes not produce great enough changes in pressureDstays ahead of its disturb