[自考类试卷]自考英语(二)模拟试卷42及答案与解析.doc
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1、自考英语(二)模拟试卷 42 及答案与解析一、阅读判断0 The Cold PlacesThe Arctic is a polar region. It surrounds(环绕) the North Pole.Like Antarctica(南极洲) ,the Arctic is a land of ice and snow. Antarctica holds the record for a low temperature reading125 degrees Fahrenheit(华氏温标) below zero. Readings of 85 degrees below zero ar
2、e common in both the Arctic and Antarctica. Winter temperatures average 30 degrees below zero in the Arctic. At the South Pole the winter average is about 73 degrees below zero.One thing alone makes it almost impossible for men to live in Antarctica and in parts of the Arctic. This one thing is the
3、low temperaturethe killing chill of the far North and the polar South.To survive, men must wear the warmest possible clothing. They must build windproof shelters. They must keep heaters going at all times. Not even for a moment can they be unprotected against the below-zero temperatures.Men have a w
4、ay of providing for themselves. Polar explorers wrap themselves in warm coats and furs. The cold makes life difficult. But the explorers can stay alive.What about animals? Can they survive? Do we find plants? Do we find life in the Arctic and in Antarctica? Yes, we do. There is life in the oceans. T
5、here is life on land.Antarctica, as we have seen, is a cold place indeed. But this has not always been the case. Expedition (探险考察) scientists have discovered that Antarctica has not always been a frozen continent. At one time the weather in Antarctica may have been much like our own.Explorers have d
6、iscovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps (沼泽) and forests. Heat and moisture must have kept the trees in the forests alive.1 The lowest temperature that man has ever known was recorded in Antarctica.(A)True(B) False(C) Not Given2 Winte
7、r temperatures average 85 degrees below zero in Antarctica.(A)True(B) False(C) Not Given3 The Arctic and Antarctica are no mans lands because of their killing coldness.(A)True(B) False(C) Not Given4 Polar explorers can stay alive by wearing warm coats and furs.(A)True(B) False(C) Not Given5 Despite
8、the hostile environment, both animals and plants can be found in the oceans and on land in polar areas.(A)True(B) False(C) Not Given6 As discovered by expedition scientists, Antarctica has not always been so cold as it is today, so has the Arctic.(A)True(B) False(C) Not Given7 Antarctica is colder t
9、han Arctic on average.(A)True(B) False(C) Not Given8 Heaters should be kept going in the night for men to survive in polar areas.(A)True(B) False(C) Not Given9 Coal is rich in Antarctica.(A)True(B) False(C) Not Given10 At one time, the weather in Antarctica was so warm and damp that trees grew there
10、.(A)True(B) False(C) Not Given二、阅读选择10 ElectricityThe modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in flickering candle
11、light, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators. Yet, people began to understand how electricity works only a little more than two centuries ago. Nature has apparently been experimenting in this field for millions of year
12、s. Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.All living cells send out tiny pulses of electricity. As the heart beats, it sends out pulses of record; they form an electrocardiogram, which a doctor can s
13、tudy to determine how well the heart is working. The brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram. The electric currents generated by most living cells are extremely smalloften so small that sensitive instruments are needed to record them. But in
14、 some animals, certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all. When large numbers of these cells are linked together, the effects can be astonishing.The electric eel is an amazing storage battery. It can send a jolt of as much as
15、 eight hundred volts of electricity through the water in which it lives. (An electric house current is only one hundred twenty volts.) As many as four fifths of all the cells in the electric eels body are specialized for generating electricity, and the strength of the shock it can deliver correspond
16、s roughly to the length of its body.11 What is the main idea of the passage?(A)Electric eels are potentially dangerous.(B) Biology and electricity appear to be closely related.(C) People would be at a loss without electricity.(D)Scientists still have much to discover about electricity.12 The author
17、mentions all of the following as results of a blackout EXCEPT_.(A)refrigerated food item may go bad(B) traffic lights do not work(C) people must rely on candlelight(D)elevators and escalators do not function13 Why does the author mention electric eels?(A)To warn the reader to stay away from them,(B)
18、 To compare their voltage to that used in houses.(C) To give an example of a living electrical generator.(D)To describe a new source of electrical power.14 How many volts of electricity can an electric eel emit?(A)800.(B) 600.(C) 200(D)12015 It can be inferred from the passage that the longer an eel
19、 is the_.(A)more beneficial it will be to science(B) more powerful its electrical charge will be(C) easier it will be to find(D)tougher it will be to eat三、概括段落大意和补全句子15 Digital Video ExpressA pay-for-play system for video DVD will emerge by summer as an alternative, and possibly a competitor, to the
20、 DVD format currently available. The new system, called Digital Video Express(Divx) ,operates like a DVD player, except for the specially coded discs. These will cost $5 for initial viewing over a 48-hour period and can be viewed again for additional fees and even purchased for unlimited viewing.Div
21、x combines the service of a video rental (出租的) store with the operation of a pay-per-view channel. Unlike a rented videotape, though, the Divx disc neednt be returned. Customers can retain the disc for replay in the future at an additional fee, or simply throw it away.Subsequent plays, or the purcha
22、se of unlimited-viewing rights, are billed to the customer s Divx account and charged to a credit card. The players built-in memory keeps track of all Divx plays,and sends this information by toll-free phone modem(调制解调器)to the Divx record-keeping centre. Each Divx disc and player has a unique identi
23、fication code,so the system knows which discs have been played and where.Some Divx discs could be converted for unlimited play at a price likely to be lower than buying a conventional DVD. Others,called Divx Gold,would be sold from the beginning for unlimited play without further charge. Although co
24、nventional DVDs will run in a Divx player, conventional DVD players will lack the decoding (解码) and communications ability to play Divx discs. Divx players will be offered by Panasonic, RCA, and Zenith.A. Booming Business of Circuit CityB. Possible Appearance of a SystemC. The New System Called Divx
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- 自考 试卷 英语 模拟 42 答案 解析 DOC