1、公共英语五级-听力理解与口试(三)及答案解析(总分：100.00，做题时间：90 分钟)一、Section Listening (总题数：0，分数：0.00)二、Part A(总题数：1，分数：30.00)(1).If you leave and arrive at a certain place at different times, you are doing time travel.（分数：3.00）A.正确B.错误(2).The theory of time travel developed from the fact that departure occurs after arriv
2、al according to one observer and before arrival according to another.（分数：3.00）A.正确B.错误(3).Special relativity time travel goes against our previous understanding of cause effect relation.（分数：3.00）A.正确B.错误(4).We feel time travel violates our intuition because we have been misguided.（分数：3.00）A.正确B.错误(5
3、).The B-movie is a convincing evidence to prove our fallible notion of cause-effect relation.（分数：3.00）A.正确B.错误(6).If we want to find out whether time travel is really possible, we have to study the properties of our globe.（分数：3.00）A.正确B.错误(7).Invariant formulations of the equations of physics assert
4、 that time travel is possible.（分数：3.00）A.正确B.错误(8).A global conservation law supposes that there is no flow in and out at infinity.（分数：3.00）A.正确B.错误(9).The theory of time travel in general relativity was put forward more than half a century ago.（分数：3.00）A.正确B.错误(10).According to the speaker, it is i
5、mpossible to make a time travel.（分数：3.00）A.正确B.错误三、Part B(总题数：3，分数：30.00)(1).Where is Dr. Taylor employed now?AAt Illinois University.BAt a journal for architects.CAt the Twin Towers office building.DAt the Department of Housing and Urban Development.（分数：3.00）A.B.C.D.(2).What is the topic of Dr. Tay
6、lors lecture?AUrban planning.BTrends in urban design.CFunctional architecture.DFederal regulations for urban development.（分数：3.00）A.B.C.D.(3).How does the speaker feel about Dr. Taylor?AHe respects him.BHe does not know him.CHe does not want to introduce him.DHe does not believe that hes qualified.（
7、分数：3.00）A.B.C.D.(1).What are the two people talking about?AEmail. BA computer class.CComputer in general, DTheir old computer.（分数：3.00）A.B.C.D.(2).What is the probable relationship between the two speakers?AFather and daughter. BHusband and wife.CMother and son. DTeacher and student.（分数：3.00）A.B.C.D
8、.(3).What brought about a great change in the two speakers attitude towards computers?AA computer class. BA degree in computer.CAn instruction manual. DComputer games.（分数：3.00）A.B.C.D.(1).Where did classical music originate?AIn Asia. BIn Africa. CIn Europe. DIn Australia.（分数：3.00）A.B.C.D.(2).“Blues“
9、 and “Enka“ are examples of _.ATraditional music BFolk musicCClassical music DRock music（分数：3.00）A.B.C.D.(3).In what way is jazz music different from other kinds of music?AIt is very inspiring and exciting.BIt doesnt need wind instruments.CIt is a combination of folk music and rock music.DIt has a d
10、ifferent kind of rhythm.（分数：3.00）A.B.C.D.(4).What kind of instruments are used in rock music?AElectric instruments.BChemical instruments.CMedical instruments.DProbing instruments.（分数：3.00）A.B.C.D.四、Part C(总题数：1，分数：40.00)(1).Chris particular brief in her work is the Asian section, especially _.（分数：4.
11、00）填空项 1:_(2).What did she find most difficult when she started the job?（分数：4.00）填空项 1:_(3).How did she solve the difficulty?（分数：4.00）填空项 1:_(4).At the Beijing electronics fair they had over _ visitors.（分数：4.00）填空项 1:_(5).How long does it usually take her to plan a trade fair?（分数：4.00）填空项 1:_(6).Aft
12、er arriving at the destination, Chris has to meet with _ first.（分数：4.00）填空项 1:_(7).Where does she think to be better for negotiations?（分数：4.00）填空项 1:_(8).What did her parents want her to be before she went to college?（分数：4.00）填空项 1:_(9).What else knowledge does she need in negotiations?（分数：4.00）填空项
13、1:_(10).The fair in Tokyo is to promote Canadian _ according to Chris.（分数：4.00）填空项 1:_公共英语五级-听力理解与口试(三)答案解析(总分：100.00，做题时间：90 分钟)一、Section Listening (总题数：0，分数：0.00)二、Part A(总题数：1，分数：30.00)(1).If you leave and arrive at a certain place at different times, you are doing time travel.（分数：3.00）A.正确B.错误 解
14、析：听力原文We define time travel to mean departure from a certain place and time followed (from the travellers point of view) by arrival at the same place at an earlier (from the sedentary observers point of view) time. Time travel paradoxes arise from the fact that departure occurs after arrival accordi
15、ng to one observer and before arrival according to another. In the terminology of special relativity time travel implies that the time like ordering of events is not invariant. This violates our intuitive notions of causality. However, an intuition is not an infallible guide, so we must be careful.
16、Is time travel really impossible, or is it merely another phenomenon where “impossible“ means “nature is weirder than we think?“ The answer is more interesting than you might think.The B-movie image of the intrepid chrononaut climbing into his time machine and watching the clock outside spin backwar
17、ds while those outside the time machine watch the him revert to callow youth is, according to current theory, impossible. In current theory, the arrow of time flows in only one direction at any particular space. If this were not true, then one could not impose a 4-dimensional coordinate system on sp
18、ace time, and many nasty consequences would result. Nevertheless, there is a scenario which is not ruled out by present knowledge. This usually requires an unusual space time topology (due to wormholes or strings in general relativity) which has not yet been seen, but which may be possible. In this
19、scenario the universe is well behaved in every local region; only by exploring the global properties does one discover time travel.It is sometimes argued that time travel violates conservation laws. For example, sending mass back in time increases the amount of energy that exists at that time. Doesn
20、t this violate conservation of energy? This argument uses the concept of a global conservation law, whereas relativistically invariant formulations of the equations of physics only imply local conservation. A local conservation law tells us that the amount of stuff inside a small volume changes only
21、 when stuff flows in or out through the surface. A global conservation law is derived from this by integrating over all space and assuming that there is no flow in or out at infinity. If this integral cannot be performed, then global conservation does not follow. So, sending mass back in time might
22、be all right, but it implies that something strange is happening. Why shouldnt we be able to do the integral?The possibility of time travel in GR has been known at least since 1949. The GR space time found by Godel has what are now called “closed timelike curves“ (CTCs). A CTC is a world line that a
23、 particle or a person can follow which ends at the same space time point (the same position and time) as it started. A solution to GR which contains CTCs cannot have a spacelike embeddingspace must have “holes“ (as in donut holes, not holes punched in a sheet of paper). A would-be time traveller mus
24、t go around or through the holes in a clever way.(2).The theory of time travel developed from the fact that departure occurs after arrival according to one observer and before arrival according to another.（分数：3.00）A.正确 B.错误解析：(3).Special relativity time travel goes against our previous understanding
25、 of cause effect relation.（分数：3.00）A.正确 B.错误解析：(4).We feel time travel violates our intuition because we have been misguided.（分数：3.00）A.正确B.错误 解析：(5).The B-movie is a convincing evidence to prove our fallible notion of cause-effect relation.（分数：3.00）A.正确B.错误 解析：(6).If we want to find out whether tim
26、e travel is really possible, we have to study the properties of our globe.（分数：3.00）A.正确 B.错误解析：(7).Invariant formulations of the equations of physics assert that time travel is possible.（分数：3.00）A.正确B.错误 解析：(8).A global conservation law supposes that there is no flow in and out at infinity.（分数：3.00）
27、A.正确 B.错误解析：(9).The theory of time travel in general relativity was put forward more than half a century ago.（分数：3.00）A.正确 B.错误解析：(10).According to the speaker, it is impossible to make a time travel.（分数：3.00）A.正确B.错误 解析：三、Part B(总题数：3，分数：30.00)(1).Where is Dr. Taylor employed now?AAt Illinois Unive
28、rsity.BAt a journal for architects.CAt the Twin Towers office building.DAt the Department of Housing and Urban Development.（分数：3.00）A.B.C.D. 解析：听力原文It is my honor to introduce todays guest lecturer, Dr. C. Henry Taylor, a colleague who is so well-known to all of us for his many accomplishments and c
29、ontributions to the field of architecture and planning that it hardly seems necessary to recount them here. Nevertheless, as custom, I will summarize his long experience as a prelude to his address. Dr. Taylor received his B. A. degree in urban history at Yale University in 1955. Five years later, h
30、e was awarded a masters degree in architecture and a Ph.D. in urban design from Cornell University. Upon graduation, he accepted a teaching position in the Department of Architecture and Fine Arts at Illinois University where he was promoted to chairman of the Department in 1969. Last year Dr. Taylo
31、r resigned from the university in order to accept a research position with the Department of Housing and Urban Development in Washington as Director of Planning. In addition to teaching and research, Dr. Taylor has devoted much time to designing, writing, and lecturing. Some of his most famous build
32、ings are right here in the Chicago area, and include the Twin Towers office building and the Saint Laurence Seaway Recreation Center. His many articles on functional architecture and urban planning have appeared in scores of journals over the past twenty years, and a half dozen textbooks are to his
33、credit, including one of the books that we use for this seminar, Trends in Urban Design. Today, Dr. Taylor will speak to us about federal regulations for urban development, and frankly, I know of no one who is more qualified to address the subject. Ladies and gentlemen, lets welcome Dr. Henry Taylor
34、, scholar, designer and author.(2).What is the topic of Dr. Taylors lecture?AUrban planning.BTrends in urban design.CFunctional architecture.DFederal regulations for urban development.（分数：3.00）A.B.C.D. 解析：(3).How does the speaker feel about Dr. Taylor?AHe respects him.BHe does not know him.CHe does
35、not want to introduce him.DHe does not believe that hes qualified.（分数：3.00）A. B.C.D.解析：(1).What are the two people talking about?AEmail. BA computer class.CComputer in general, DTheir old computer.（分数：3.00）A.B.C. D.解析：听力原文W: Well, there are no “ifs“, “ands“, or “buts“ about it. Anna is completely at
36、 home with all this technology.M: Isnt it great? She doesnt have the fear of technology that so many of us have. Its amazing to think that her generation has grown up with telephones and computers. They take all that stuff for granted.W: Thats for sure. To think there are kids her age who have never
37、 changed a TV channel without a remote control! Can you imagine?M: Youre right. Well, its true that computers are much, much more convenient. But its hard for me to learn programs on computers.W: I know what you mean. You know, I have been thinking that maybe we should take an evening class. What do
38、 you think, darling?M: Wow. Im really glad to hear you say that because Ive thought a lot about taking a class, but Ive always dragged my feet. I dont know why, really.(At home after the first computer class)W: Look at you. Youre really working hard at that computer!M: Nothing could tear me away. If
39、 it werent for our class, Id be in a bind right now trying to figure out what to do. But Im doing OK. The class really helps.W: Thats the truth. I prefer a teacher to an instruction manual. Heydid I tell you that I want to get a modem? I want to get online. Dont you think weve held off long enough?
40、I want to have email.M: That teacher surely won you over. A few months ago you didnt even know what a modem was!W: Well, I have to admit, this whole world of computers is growing on me.M: Sounds like youre ready to go back to school and get some sort of degree in computers.W: You never know.(2).What
41、 is the probable relationship between the two speakers?AFather and daughter. BHusband and wife.CMother and son. DTeacher and student.（分数：3.00）A.B. C.D.解析：(3).What brought about a great change in the two speakers attitude towards computers?AA computer class. BA degree in computer.CAn instruction manu
42、al. DComputer games.（分数：3.00）A. B.C.D.解析：(1).Where did classical music originate?AIn Asia. BIn Africa. CIn Europe. DIn Australia.（分数：3.00）A.B.C. D.解析：听力原文Music is often divided into several categories or groups. Some of the categories are. classical music, traditional music, rock music, and jazz mus
43、ic.The first kind, classical music, refers to orchestra music that originated in Europe a few hundred years ago. Most of the original classical music was composed or written in Italy, Germany, Austria or Russia. Beethoven and Bach were two famous composers of classical music. Classical music is usua
44、lly played by a variety of string instruments, such as the violin, and by a variety of wind instruments, such as the flute.The second type of music is traditional music. It comes from a particular culture. Every culture has its own special forms of traditional music. For example, “blues“ music is on
45、e kind of traditional music in the United States and “Enka“ music is one kind of traditional in Japan. Each culture has its own traditional music, and its own special instruments for playing its traditional music.Another kind of music is rock music. Rock is generally a loud kind of music, played wit
46、h a strong beat. Rock musicians often use electric instruments, such as electric guitars and electric pianos, but other instruments can also be used. Rock music probably began in Europe about 30 or 40 years ago. Rock became very popular, especially among young people, during the 1960s and 1970s.The
47、fourth kind of music is Jazz. Jazz probably comes from Africa originally. Jazz has a different kind of rhythm from other kinds of music. A variety of music instruments are used to play this kind of music, especially wind instruments such as the trumpet and saxophone. Often piano, bass, and a variety
48、 of percussion instruments are also used.These are the four general types of music. Of course these definitions are brief and general, and certainly there are other categories of music. In addition, many kinds of music are combinations of classical and traditional, or classical and jazz, or rock and jazz, and SO on.(2).“Blues“ and “Enka“ are examples of _.ATraditional music BFolk musicCClassical music DRock music（分数：3.00）A. B.C.D.解析：(3).In what way is jazz music different from other kinds of music?AIt is very inspiring and exciting.BIt doesnt need wind
