1、公共英语二级-450 及答案解析(总分：110.00，做题时间：90 分钟)一、第一部分 听力理解(总题数：0，分数：0.00)二、第一节(总题数：1，分数：5.00)(1).Where is the womans husband now?（分数：1.00）A.At home.B.In the library.C.In the la(2).Why didnt the woman wear the black dress?（分数：1.00）A.Because she dose not like it.B.Because it does not fit her very well.C.Becaus
2、e it is too formal for the occasion.(3).What is the mans occupation now?（分数：1.00）A.Hes a secretary.B.Hes a novelist.C.Hes a newspaperman.(4).How many cars can be parked in the back lot?（分数：1.00）A.A total of 15.B.A total of 30.C.A total of 50.(5).What does the man mean?（分数：1.00）A.He wants to talk abo
3、ut the project.B.He thinks the project is fine.C.He agrees with the woman.三、第二节(总题数：5，分数：15.00)(1).What time do most stores close?（分数：1.00）A.At six.B.At nine.C.At seven.(2).What time does the department store close?（分数：1.00）A.At six.B.At nine.C.At sever.(1).Who is the man?（分数：1.00）A.An employee.B.A
4、student.C.A patient.(2).What time will the man see the doctor?（分数：1.00）A.9: 15 Tuesday.B.9: 15 Thursday.C.15: 00 Thursday.(1).Why did everybody in the village think Mark would die?（分数：1.00）A.He was seriously ill.B.He was badly wounded.C.Doctors would do nothing for him.(2).Why did it take the doctor
5、 two days to reach the village?（分数：1.00）A.He had to prepare some medicine.B.There was an accident on his way to the village.C.The village was far from the town.(3).What did the doctor want to do after the careful examination?（分数：1.00）A.To light a fire.B.To ask for a pen and some paper.C.To pick up a
6、 piece of burnt woo(1).When is the conversation taking place?（分数：1.00）A.At ten.B.At ten-thirty.C.Nearly at midnight.(2).When does the womans early class begin?（分数：1.00）A.At 7: 00.B.At 7: 30.C.At 8: 00.(3).What class the woman will teach tomorrow?（分数：1.00）A.Writing class.B.A part-time class.C.The pas
7、sage doesnt tell us.(1).Who missed the TV special?（分数：1.00）A.The man.B.The woman.C.Non(2).Whats the topic about the dialogue?（分数：1.00）A.Glue.B.Barnacles.C.Protein.(3).How many uses about such a glue are mentioned in the dialogue?（分数：1.00）A.Two.B.There.C.Only on(4).Can people take advantage of such g
8、lue today?（分数：1.00）A.No.B.Yes.C.Maybe in the futur(5).Which is one of the advantages of such glue?（分数：1.00）A.It can work on wet surfaces.B.It can be used forever.C.It can be make into a kind of sugar.四、第二部分 英语知识运用(总题数：0，分数：0.00)五、第一节 单项填空(总题数：15，分数：15.00)1.I didnt help him. I would have _I didnt hav
9、e the money. A. or B. but C. otherwise D. still（分数：1.00）A.B.C.D.2.Anthropologists usually study simple, unindustrialized societies because the number of_is limited. A. vehicles B. variables C. varieties D. systems（分数：1.00）A.B.C.D.3.We must _ on water during the dry season. A. economical B. economize
10、 C. economy D. economically（分数：1.00）A.B.C.D.4.Swedish is the _ language of most Swedes. A. natural B. native C. home D. mother（分数：1.00）A.B.C.D.5.The investigation group tried in _to discover what caused the failure of the engine. A. diligence B. vain C. vigor D. zeal（分数：1.00）A.B.C.D.6.It takes a gre
11、at deal of power of _a spaceship into space. A. elevate B. launch C. flourish D. take off（分数：1.00）A.B.C.D.7.His tone _his real feelings more than his words. A. paraphrased B. conformed C. performed D. conveyed（分数：1.00）A.B.C.D.8.I didnt _the meeting because I was ill. A. join B. enter C. attend D. ap
12、pear（分数：1.00）A.B.C.D.9.The doctor gave the patient a(n) _ examination to discover the cause of his collapse. A. thorough B. universal C. exact D. whole（分数：1.00）A.B.C.D.10.The market sells mainly fruit, vegetables and dairy A. produce B. production C. output D. stocks（分数：1.00）A.B.C.D.11.A soldier has
13、 to learn to carry _orders as soon as they are given. A. on B. out C. through D. off（分数：1.00）A.B.C.D.12.We should do everything in our power to develop _alternatives to petrol. A. audible B. capable C. liable D. viable（分数：1.00）A.B.C.D.13.This cloth _very thin. A. feels B. touches C. holds D. handles
14、（分数：1.00）A.B.C.D.14.When the man came _after the operation he found himself back in bed. A. on B. in C. over D. round（分数：1.00）A.B.C.D.15.Death at last _the woman patient from her pain. A. got rid of B. relieved C. released D. left out（分数：1.00）A.B.C.D.六、第二节 完型填空(总题数：1，分数：20.00)I always enjoy the driv
15、e (36) Marley. It is a good straight road, with some (37) views of the countryside on (38) side. There are woods and hills, villages and farms and about halfway, a large lake. And because there is (39) much traffic on the road, I can usually enjoy the (40) as I drive along.I was (41) annoyed the oth
16、er morning, therefore, when a small green car began to drive very close behind me. I went (42) faster, (43) to leave the car behind. But (44) I slowed down, the little car (45) me, the driver, a middle-aged man, was smiling and waving to me. (46) ,I did not recognize either him or the car.“Perhaps I
17、 am (47) “ I thought. I checked my lights and my indicator(方向灯)but they were both (48) . And I certainly had not got a puncture(穿孔). The man (49) a madman, I decided. (50) rather angry, I drove off very fast, leaving the small green car behind. I did not slow down (51) I got to Marley.There are some
18、 (52) just before you cross the railway bridge into Marley and, as it happened, the lights (53) red as I drove near. I was (54) waiting there when the little green car caught up with me.The driver (55) and tapped on my window. I opened it, “ (56) ?“ I asked rather (57) “Im trying to help you!“ The m
19、an said. “You see, your number plate fell off about fifteen miles (58) . I tried to attract your (59) but you didnt (60) !/（分数：20.00）A.towardsB.forC.intoD.ofA.pleasantB.excitingC.interestingD.funnyA.everyB.eachC.bothD.eitherA.noB.notC.rarelyD.neverA.woods and hillsB.villagesC.lakesD.viewA.veryB.rath
20、erC.fairlyD.tooA.a littleB.veryC.moreD.muchA.hopedB.hopingC.hopeD.to hopeA.whenB.whereC.wheneverD.nowA.caughtB.followedC.came afterD.caught up withA.HoweverB.StillC.ForD.YetA.doing him harmB.doing something wrongC.doing some good deedD.doing him goodA.in troubleB.in orderC.in dangerD.in useA.must be
21、B.might beC.wasD.must have beenA.FeelB.To feelC.FeltD.FeelingA.untilB.unlessC.asD.whenA.peopleB.traffic lightsC.shopsD.cinemasA.becameB.gotC.turnedD.wentA.thenB.alreadyC.justD.stillA.got outB.got offC.got downD.got onA.Excuse meB.Can I help youC.Whats the matterD.I beg your pardonA.happilyB.suddenly
22、C.coldlyD.quicklyA.backB.behindC.forwardD.aheadA.interestB.mindC.thoughtD.attentionA.noticeB.seeC.take any noticeD.understand七、第三部分 阅读理解(总题数：0，分数：0.00)AThree men got to Dover station a few minutes after nine oclock one evening. They asked a guard, “What time is the next train for London?“The guard s
23、aid, “Youve just missed one. A train goes every hour. The next one is at ten oclock.:“Thats all right,“ they said, “Well go and have a drink.“ So off they went to a bar (酒吧间). A minute or two after ten oclock they came running and asked the guard, “Has the train gone?“Yes,“ the guard said. “It went
24、at ten, as I told you. The next one is at eleven oclock.“Thats all right,“ they said again. “Well go and have another drink.“ So they went back to the bar.They missed the eleven oclock train in the same way. Then the guard said, “Now, the next train is the last one. If you miss that train, you wont
25、get to London tonight.“Twelve oclock came, and the last train was just starting out when the three of them came out of the bar running as fast as they could. Two of them got in the train just as it was leaving, but the third one didnt run fast enough, and the train went out leaving him behind. He st
26、ood there looking at the train and laughing, as if (好像) to miss a train was the best joke in the world. The guard went up to him and said, “I told you that this was the last train. Why didnt you come earlier?“The man kept laughing until tears came into his eyes. Then he caught hold of the guard and
27、said, “Did you see the two men get into the train and leave me here?“Yes, I did.“Well, I was the only one to leave for London. They were here only to see me off!/（分数：4.00）(1).The guard told the three people that there _.（分数：1.00）A.was a train in the eveningB.were trains all nightC.was a train every
28、sixty minutesD.were no train in the evening(2).The three men missed the train _.（分数：1.00）A.onceB.twiceC.three timesD.four times(3).They couldnt get the train because_.（分数：1.00）A.they had a drinkB.they went to the barC.the train left too soonD.they left the bar too late(4).The man laughed because _.（
29、分数：1.00）A.his friends who came to see him off got on the train instead of himB.it was funny to missC.he didnt really want to go to LondonD.his friends didnt have to go to LondonBIn almost every big university (大学) in the U.S.A, football is a favourite sport. American football is not like soccer. Pla
30、yers sometimes kick the ball, but they also throw the ball and run with it. They try to take it to the other end of the field(场地). They have four chances(机会)to move the ball ten yards(码). They can carry it or throw it. If they move it to other end of the field, they receive six points(分). This is ca
31、lled a touchdown(底线得分)It is difficult to move the ball. Eleven men on the team try to stop the man who has the ball. If the man does not move the ball ten yards, his team kicks the ball to the other team.Each university wants its team to win. Thousands of people come to watch. They all yell (喊加油) fo
32、r their favourite team. Young men and women called cheerleaders (啦啦队长) come to help the people yell more.Each team plays ten or eleven games. Each season begins in September and ends(结束) in November. If a team is very good, it may play another game after the season ends. The best teams play again on
33、 January 1, the first day of the New Year. Many people go to see these games and many others watch them on TV.（分数：4.00）(1).In American football players can _.（分数：1.00）A.only kick the ballB.only throw the ballC.only carry the ballD.kick, throw and carry the ball(2).If a team wants to get points, it h
34、as to move the ball _.（分数：1.00）A.10 yardsB.40 yardsC.away from its own endD.to the other end(3).Most teams play games in _.（分数：1.00）A.springB.summerC.autumnD.winter(4).When do the best play again?（分数：1.00）A.At Christmas.B.Before the season ends.C.On New Years Day.D.On the last day of the season.CAny
35、 physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove in. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory. On the other hand, you can dispro
36、ve a theory by finding even a single observation that disagrees with the predictions of the theory. As philosopher of science Karl Popper has emphasized, a good theory is characterized by the fact that it makes a number of predictions that could in principle be disproved or falsified by observation.
37、 Each time new experiments are observed to agree with the predictions the theory survives, and our confidence in it is increased; but if ever a new observation is found to disagree, we have to abandon or modify the theory. At least that is what is supposed to happen, but you can always question the
38、competence of the person who carried out the observation.In practice, what often happens is that a new theory is devised that is really an extension of the previous theory. For example, very accurate observations of the planet Mercury revealed a small difference between its motion and the prediction
39、s of Newtons theory of gravity. Einsteins general theory of relativity predicted a slightly different motion from Newtons theory. The fact that Einsteins predictions matched what was seen, while Newtons did not, was one of the crucial confirmations of the new theory. However, we still use Newtons th
40、eory for all practical purposes because the difference between its predictions and those of general relativity is very small in the situations that we normally deal with. (Newtons theory also has the great advantage that it is much simpler to work with than Einsteins!)（分数：4.00）(1).A good title for t
41、his passage is_.（分数：1.00）A.The History of Physical ScienceB.Karl Poppers Physical TheoryC.The Philosophy of ScienceD.Einsteins Theory of Science(2).Newtons theory of gravity was corrected by Einsteins theory because of_.（分数：1.00）A.a new hypothesis about gravityB.careful measurements of Mercurys moti
42、onC.new practical considerations of Newtons theoryD.newly predicted observations(3).A number of predictions can be disproved by _.A. observations C. experiments B. theories D. hypotheses（分数：1.00）A.B.C.D.(4).Which statement is true?（分数：1.00）A.Einsteins general theory of relativity will survive any ob
43、servations to be found.B.The general theory of relativity is not an extention of the theory of gravity.C.The general theory of relativity may be disproved or falsified.D.The general theory of relativity has completely replaced the theory of gravity.DGreenspace facilities are contributing to an impor
44、tant extent to the quality of the urban environment. Fortunately, it is no longer necessary that every lecture or every book about this subject has to start with the proof of this idea. At present it is generally accepted, although more as a self-evident statement than on the base of a closely-reaso
45、ned scientific proof. The recognition of the importance of greenspaces in the urban environment is a first step on the right way; this does not mean, however, that sufficient details are known about the functions of greenspace in towns and about the way in which the inhabitants are using these space
46、s. As to this rather complex subject I shall, within the scope of this lecture, enter into one aspect only, namely the recreative function of greenspace facilities.The theoretical separation of living working, traffic and recreation which for many years has been used in town-and-country planning, ha
47、s in my opinion resulted in disproportionate attention for forms for improvement of recreative possibilities in the direct neighborhood of the home. We have come to the conclusion that this is not right, because an important part of the time which we do not pass in sleeping or working, is used for a
48、ctivities at and around home. So it is obvious that recreation in the open air has to begin at the street-door of the house. The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory activities can also have a recreative
49、 aspect.The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if the children cannot be allowed to play in the streets because the risks of traffic are too great, if during shopping you can nowhere find a spot for enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street-
