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大学英语四级考试模拟试卷(1)

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2021-02-11 04:37
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2021年2月11日发(作者:中国国家主席)


大学英语四级考试模拟试卷(


1






Part



Reading Comprehension (35 minutes)




Directions: There are 4 passages in this passage is


followed by so




me questions or unfinished each of them there are


four choices marked A),B),C) and D).You should decide on the best


choice and mark the corresponding




letter on the Answer Sheet with a single line through the center.




Questions 21 to 25 are based on the following passage:




Some radio singals were heard in were coming from a


point in the sky where there was unknown were coming very


regularly,too:about once a second,if they were controlled by clock.




The scientists who heard the signals did not tell anybody


were rather afraid to tell in case they frightened


signals were coming from a very small body



no


bigger,perhaps than the that why no light could be seen


from it?Or were the signals coming from a planet that belonged to


some other star?There was no end to the questions,but the scientists


kept the news secret.



Perhaps there are intelligent beings out


there.



they thought,



who are trying to send messages to other


planets,or to us?So the news was not given to the


d,the scientists studied the signals and searched for


others like them...Well,all that happened in 1967 and then


scientists have learnt more about those strange,regular,radio


they have told the story,of course.




The signals do not come from a planet;they come from a new kind


of star called a



pulsar


””


.About a hundred other pulsars have now


been found,and most of them


are very like the first one.




Pulsars are strong radio are the smallest but the


heaviest stars we know at present.A handful of pulsar would weigh a


few thousand light



if they give much light



is too small


for us to we can be sure of this,no intelligent beings are


living on them.




21. The radio signals discussed in this passage____.




regular controlled by a clock




heard in 1967 only secret messages




22. The radio singals were sent by____.




A.a satellite B.a planet




C.a sky body which was unknown at that time




igent beings who were unknown at that time




23. The scientists did not tell people about the signals


because____.




singals stood for secret messages




would ask them too many questions




did not want to frighten people




stood for unimportant messages




24. A pulsar is____.




A. a small heavy star which sends out strong radio signals and


cannot be seen




B. a small heavy planet which sends out strong radio signals and


cannot be seen




C. a small heavy satellite which sends out strong radio signals


and cannot be seen




D. a small intelligent being who sends out strong radio signals


and cannot be seen




25. Which of the following is true?




of the pulsars found by scientists sends radio signals.




began to send radio singals in 1967.




ists have searched for pulsars for many years but found


none.




ists have found many pulsars since 1967.




rn life and ancient life.




27.



one out of seven



refers to____.




than a third of the lands' earth




percentage of the earth's land that is desert-like




number of people who live in dry regions




D.a day of a week




28. In paragraph 2,



they are taken to the greener lands in the


south.



They


refers to____.




Sahel farm land farmers




cattles trees




29. How many ideas for saving the land are described?




. .




. .




30. Which of the following statements is true, according to the


passage?




earth's desert are slowly spreading.




out of 10 people lives in dry regions.




life in the desert is threatened now by traditional


problems.




water wells can solve the problem in Africa's desert.




Questions 31 to 35 are based on the following passage:




Telephone, television, radio, and telegraph all help people


communicate with


each other. Because of these devices, ideas and


news of events spread quickly all


over the world. For example,


within seconds, people can know the results of an


election in


another country. An international football match comes into the homes


of everyone with a television of a disaster such as an


earthquake or a


flood can bring help from distant countries within


hours, help is on the way. Because of modern technology like the


satellites that travel around the world, information travels fast.




How has this speed of communication changed the world? To many


people,the world has become smaller. Of course this does not mean


that the world is actually physically smaller. It means that the


world seems smaller. Two hundred years ago,communication between the


continents took a long time. All news was carried on ships that took


weeks or even months to cross the ocean. In the seventeenth and


eighteenth centuries,it took six weeks for news from Europe to reach


time difference influenced people's actions. For example,


one battle, or fight, in the War of 1812 between England and the


United States could have been avoided. A peace agreement had already


been signed. Peace was made in England, but the news of peace took


six weeks to reach America. During these six weeks, the large and


serious Battle of New Orleans was fought. Many people lost their


lives after a peace treaty had been would not have died


if news had come in the past,communication took much time


than it does now.




There was a good reason why the world seemed so much larger than


it does today.




31. News spreads fast because of____.




transportation technology




change of the world D.a peace agreement




32. According to this passage,____is very important to people in


a disaster area.




communication technology




news ideas




33. Which of the following statements is true?




world now seems smaller because of faster communication.




world is actually smaller today.




world is changing its size.




D. The distance between England and America has changed since the


War of 1812




34. Two hundred years ago,news between the continents was


carried____.




telephone and telegraph land




air sea




35. The New Orleans Battle could have been avoided if the peace


agreement had been signed____.




both sides time




America England




Questions 36 to 40 are based on the following passage:




The concept of personal choice in relation to health behaviors is


an important estimated 90 percent of all illnesses may be


preventable if individuals would make sound personal health choices


based upon current medical knowledge.




We all enjoy our freedom of choice and do not like to see it


restricted when it is within the legal and moral boundaries of


society.[ZZ)]The structure of American society allows us to make


almost all our own personal decisions that may concern our


we so desire,we can smoke,drink excessively, refuse to wear seat


belts,eat whatever foods we want,and live a completely sedentary


life-style without any freedom to make such personal


decisions is a fundamental aspect of our society,although the wisdom


of these decisions can be al choices relative to


health often cause a one example,a teenager may know


the facts relative to smoking cigarettes and health but may be


pressured by friends into believing it is the socially accepted thing


to do. A multitude of factors,both inherited and


environmental,influence the development of heal threlated


behaviors,and it is beyond the scope of this text to discuss all


these factors as they may affect any given r,the


decision to adopt a particular health-related behavior is usually one


of personal choices.




There are healthy choices and there are unhealthy


discussing the moral of personal choice,Fries and Crapo drew a


comparison.[ZZ(Z]They suggest that to knowingly give oneself over to


a behavior that has a statistical probability of shortening life is


similar to attempting suicide.[ZZ)]Thus,for those individuals


who


are interested in preserving both the quality and quantity of


life,personal health choices should reflect those behaviors that are


associated with statistical probability of increased vitality and


longevity.




36. The concept of personal choice concerning health is important


because____.




al health choices help cure most illnesses




helps raise the level of our medical knowledge




is essential to personal freedom in American society




decisions could head to poor health




37. To



live a completely sedentary life style



(Para. 1) in the


passage means____.






live an inactive life live a decent life




live a life with complete freedom




live a life of vice




38. Sound personal health choice is often difficult to make


because____.




t medical knowledge is still insufficient




are many factors influencing our decisions




people are willing to trade the quality of life for


longevity




are usually influenced by the behavior of their friends

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