【决战2010年12月六级】大学英语六级考试押题试卷(含答案)16

1、大学六级模拟16Part WritingDirections: For this part, you are allowed 30 minutes to write a short essay, entitled Playing Truant. You should write at least 150 words following the outline given below:1. 现有大学里逃课现象很严重2.你认为产生这种现象的原因是什么3. 怎么才能杜绝这一现象 Playing Truant_这道题您没有回答答案:范文 Playing Truant The current decad

2、e has witnessed the prevalence of playing truant on campus. Specifically, it is not surprising to see some schoolboys playing computer games in internet-caf during class time. Apart from that, it is not uncommon that schoolgirls go shopping regardless of their courses. Clearly, this issue is pressin

3、g for our serious consideration. The reasons for skipping class are various, such as the colorful activities of campus, forgetting the time, playing computer games, sleeping and so on. But the chief one, in my viewpoint, is that we think college life is to play and enjoy instead of learning. After t

4、hree years of hard work in senior high school, many students assume that they can finally relax in college and do not need to study hard any more. Thus they dont take college courses seriously and play truant very frequently.It is no doubt that playing truant is bad for college students. There is an

5、 urgent need to stop this kind of phenomenon. On one hand, the school, both the administrators and teachers should prevent students from playing truant. On the other hand, more importantly, we college students should realize its bad effects and start from ourselves to stop playing truant on campus.解

6、析 本次写作试题要求对“大学逃课现象”展开分析讨论。要求考生先描述大学里的逃课现象，然后分析产生这种现象的原因，最后就怎样才能杜绝这一现象进行阐述。写作可以按照试卷上给出的汉语提纲展开。第一段可以直接点题，阐明现在大学里逃课现象很严重。可以运用句式it is not surprising that和it is not uncommon that还可以用It isthat句式。表示连接过渡可以用词组apart from，类似表达有what is more，moreover，besides等。文章主体部分即第二段分析产生逃课现象的原因，可以运用句式The reasons forare variou

7、s，such as和The chief one is列举原因时常用In the first placeIn the second place或To sCart with/To begin withSecondly，Finally/Lastly等。末段应该阐述应对这种现状的解决办法。提出对策和建议时可用衔接词语On one hand On the other hand或For one thingfor another等。Part Reading Comprehension (Skimming and Scanning)Directions: In this part, you will have

8、 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked A), B), C) and D). For questions 8-10, complete the sentences with the information given in the passage. Satellite Today, you see compact sate

9、llite dishes perched on rooftops all over the United States. Drive through rural areas beyond the reach of the cable companies and youll find dishes on just about every house. The major satellite television companies are bringing in more customers every day with the lure of movies, sporting events a

10、nd news from around the world. The Broadcast TV Problem Conceptually, satellite television is, a lot like broadcast television. Its a wireless system for delivering television programming directly to a viewers house. Both broadcast television and satellite stations transmit programming via a radio s

11、ignal. Broadcast stations use a powerful antenna to transmit radio waves to the surrounding area. Viewers can pick up the signal with a much smaller antenna. The main limitation of broadcast television is range. The radio signals used to broadcast television shoot out from the broadcast antenna in a

12、 straight line. In order to receive these signals, you have to be in the direct line of sight of the antenna. One problem is that the Earth is curved, so it eventually breaks the signals line of site. The other problem with broadcast television is that the signal is often distorted even in the viewi

13、ng area. To get a perfectly clear signal like you find on cable, you have to be pretty close to the broadcast antenna without too many obstacles in the way. The Satellite TV Solution Satellite television solves the problems of range and distortion by transmitting broadcast signals from satellites or

14、biting the Earth. Since satellites are high in the sky, there are a lot more customers in the line of site. Satellite television systems transmit and receive radio signals using specialized antennas called satellite dishes. The television satellites are all in geosynchronous orbit, meaning that they

15、 stay in one place in the sky relative to the Earth. Each satellite is launched into space at about 7,000 mph (11,000kph), reaching approximately 22,200 miles (35,700km) above the Earth. At this speed and altitude, the satellite will revolve around the planet once every 24 hoursthe same period of ti

16、me it takes the Earth to make one full rotation. In other words, the satellite keeps pace with our moving planet exactly. This way, you only have to direct the dish at the satellite once, and from then on it picks up the signal without adjustment, at least when everything works right. The Overall Sy

17、stem Early satellite TV viewers were explorers of sorts. They used their expensive dishes to discover unique programming that wasnt necessarily intended for mass audiences. The dish and receiving equipment gave viewers the tools to pick up foreign stations, live feeding between different broadcast s

18、tations, NASA activities and a lot of other stuff transmitted using satellites. Some satellite owners still seek out this sort of programming on their own, but today, most satellite TV customers get their programming through a direct broadcast satellite (DBS) provider, such as Direct TV or the Dish

19、Network. The provider selects programs and broadcasts them to subscribers as a set package. Basically, the providers goal is to bring dozens or even hundreds of channels to your television in a form that approximates the competition, cable TV. Unlike earlier programming, the providers broadcast is c

20、ompletely digital, which means it has much better picture and sound quality. Early satellite television was broadcast in C-band radioradio in the 3.4-gigabertz (GHz) to 7-GHz frequency range. Digital broadcast satellite transmits programming in the Ku frequency range (12 GHz to 14 GHz ). The Program

21、ming Satellite TV providers get programming from two major sources: national turnaround channels (such as HBO, ESPN and CNN) and various local channels (NBC, CBS, ABC, PBS and Fox affiliates in a particular area). Most of the turnaround channels also provide programming for cable television, and the

22、 local channels typically broadcast their programming over the airwaves. Turnaround channels usually have a distribution centre that beams their programming to a geostationary satellite. The broadcast centre uses large satellite dishes to pick up these analogs and digital signals from several source

23、s. The broadcast centre converts all of this programming into a high-quality, uncompressed digital stream. At this point, the stream contains a vast quantity of dataabout 270 megabits per second (Mbps) for each channel. In order to transmit the signal from there, the broadcast centre has to compress

24、 it. Otherwise, it would be too big for the satellite to handle. Compression, Encryption and Transmission The two major providers in the United States use the MPEG-2 compressed video formatthe same format used to store movies on DVDs. With MPEG-2 compression, the provider can reduce the 270-Mbps str

25、eam to about 5 or 10 Mbps (depending on the type of programming). This is the crucial step that has made DBS service a success. With digital compression, a typical satellite can transmit about 200 channels. Without digital compression, it can transmit about 30 channels. At the broadcast centre, the

26、high-quality digital stream of video goes through an MPEG-2 encoder, which converts the programming to MPEG-2 video of the correct size and format for the satellite receiver in your house. After the video is compressed, the provider needs to encrypt it in order to keep people from accessing it for f

27、ree. Encryption scrambles the digital data in such a way that it can only be decrypted (converted back into usable data) if the receiver has the correct decryption algorithm and security keys. Once the signal is compressed and encrypted, the broadcast centre beams it directly to one of its satellite

28、s. The satellite picks up the signal with an onboard dish, amplifies the signal and uses another dish to beam the signal back to the Earth, where viewers can pick it up. The Dish and the Receiver A satellite dish is just a special kind of antenna designed to focus on a specific broadcast source. The

29、 standard dish consists of a parabolic (bowl-shaped) surface and a central feed horn. To transmit a signal, a controller sends it through the horn, and the dish focuses the signal into a relatively narrow beam. The end component in the entire satellite TV system is the receiver. The receiver has fou

30、r essential jobs: It de-scrambles the encrypted signal. In order to unlock the signal, the receiver needs the proper decoder chip for that programming package. It takes the digital MPEG-2 signal and converts it into an analog format that a standard television can recognize. In the United States, rec

31、eivers convert the digital signal to the analog NTSC format. Some dish and receiver setups can also output an HDTV signal. It extracts the individual channels from the larger satellite signal. When you change the channel on the receiver, it sends just the signal for that channel to your TV. It keeps

32、 track of pay-per-view programs and periodically phones a computer at the providers headquarters to communicate billing information. While digital broadcast satellite service is still lacking some of the basic features of conventional cable (the ability to easily split signals between different TVs

33、and VCRs, for example), its high-quality picture, varied programming selection and extended service areas make it a good alternative for some. With the rise of digital cable, which also has improved picture quality and extended channel selection, the TV war is really heating up.1. Broadcast stations

34、 use _to transmit radio waves to the surrounding area. A) a powerful antenna B) a much smaller antenna C) satellite dishes D) cable这道题您没有回答 【回答错误】答案:A细节题。由题目中的Broadcast stations找到小标题The Broadcast TV Problem下第一段倒数第二句 Broadcast stations use a powerful antenna to transmit radio waves to the surrounding

35、 area.(广播电台使用一个强大的天线向周围地区传输无线电波。)所以答案是A。2. The television satellites stay in geosynchronous orbit and_. A) transmit signal in the direct line of sight B) compress the signal C) keep pace with the moon D) keep pace with the earth这道题您没有回答 【回答错误】答案:D细节题。由题目中的geosynchronous orbit找到小标题The Satellite TV So

36、lution下第二段第一句The television satellites are all in geosynchronous orbit, meaning that they stay in one place in the sky relative to the Earth.(电视卫星在与地球同步的轨道上运行，也就是它们处在相对于地球静止的同一位置。)和第四句In other words, the satellite keeps pace with our moving planet exactly.(也就是说，卫星保持着与地球完全相同的运行步调。)所以答案是D。3. In recent

37、 years, satellite television has started to be broadcast in the radio frequency range_. A) between 3.4 GHz and 7 GHz B) between 12 GHz and 14 GHz C) between 14 GHz and 21 GHz D) between 21 GHz and 27GHz这道题您没有回答 【回答错误】答案:B细节题。由题目中的satellite television和radio frequency找到小标题The Overall System下第二段最后一句Dig

38、ital broadcast satellite transmits programming in the Ku frequency range(12 GHz to 14 GHz). (数字传播卫星在Ku波段12兆赫兹到14兆赫兹传播节目。)所以答案是B。4. Local television channels usually use _to transmit their programming. A) satellites B) cable C) airwaves D) wires这道题您没有回答 【回答错误】答案:C细节题。由题目中的Local television channels找到小

39、标题The Programming下第一段最后一句and the local channels typically broadcast their programming over the airwaves.(本地频道的特色是用无线电波来传播节目。)所以答案是C。5. Satellite television providers can bring dozens or even hundreds of channels to TV viewers because_. A) satellite can send more programs B) the television signals se

40、nt to satellites are compressed C) the signals are encrypted D) the signals converted back into usable data这道题您没有回答 【回答错误】答案:B推理判断题。由题目中的dozens or even hundreds of channels找到小标题Compression, Encryption and Transmission下第一段最后两句With digital compression, a typical satellite can transmit about 200 channe

41、ls. Without digital compression, it can transmit about 30 channels. (通过数字压缩，一个典型的卫星可以传播200个左右的频道，而没有经过压缩的，就只能传播30个左右的频道。)由此可知有线电视节目供应商之所以能提供如此多的节目给用户，是因为电视信号可以被压缩，之后传送到卫星上。所以答案是B。6. _receives satellite television signal and decodes it for the TV screen. A) The satellite dish B) The provider C) The r

42、eceiver D) The viewer这道题您没有回答 【回答错误】答案:C细节题。由题目中的decodes找到小标题The Dish and the Receiver下第二段最后一句及第三段The receiver has four essential jobs: It de-scrambles the encrypted signal. In order to unlock the signal, the receiver needs the proper decoder chip for that programming package. (接收器有四个作用，它接收加密的信号，为解密

43、节目包，接收器需要解码器芯片。)所以答案选择C。7. Satellite TV has encountered fierce competition from digital cable, which also has A) improved picture quality B) extended channel selection C) distorted signal D) both A and B这道题您没有回答 【回答错误】答案:D细节题。由题目中的digital cable找到小标题The Dish and the Receiver下最后一段最后一句with the rise of

44、digital cable, which also has improved picture quality and extended channel selection, the TV war is really heating up.(随着改良的画面质量和多频道选择的数字有线电视的兴起，电视大战愈演愈烈。)所以答案选择D。8. Satellite television is similar to broadcast television in the way that it is _for sending television programming directly to a viewe

45、rs home.这道题您没有回答答案:a wireless system细节题。由题目中的Satellite television is similar to broadcast television找到小标题The Broadcast TV Problem下第一段前两句Conceptually, satellite television is, a lot like broadcast television. Its a wireless system for delivering television programming directly to a viewers house. (从概

46、念上来说，卫星电视和广播电视很相像，它也是一种直接无线传播电视节目的系统。)由此可得答案。9. In the United States, the two major providers of direct broadcast satellite television are_.这道题您没有回答答案:Direct TV and the Dish Network.细节题。由题目中的direct broadcast找到小标题The Overall System下第二段第一句Some satellite owners still seek out this sort of programming o

47、n their own, but today, most satellite TV customers get their programming through a direct broadcast satellite (DBS) provider, such as Direct TV or the Dish Network. (如今，大多数的卫星电视客户享用直接传播卫星提供者传播的节目，像Direct TV或the Dish Network。)由此可得答案。10. The satellite television signal is transmitted in the digital v

48、ideo format of_.这道题您没有回答答案:MPEG-2细节题。由题目中的digital video format找到小标题Compression, Encryption and Transmission下第一段第一句The two major providers in the United States use the MPEG-2 compressed video format.(美国的两大主要的供应商使用MPEG-2影像压缩格式。)由此可得答案。Part Listening ComprehensionSection ADirections: In this section, y

49、ou will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four

50、 choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.语音播放 语音下载11. A) They have bought the brown carpet. B) He doesnt like the red carpet. C) They have brown furniture. D) A red carpet matche

51、s the brown furniture.这道题您没有回答 【回答错误】答案:B听力原文 W: The red carpet matches the furniture well, doesnt it?M: But I still wish wed bought the brown one.Q: What does the man mean?答案解析 推理判断题。选项表明对话内容与谈论说话人对买什么颜色的地毯有关。选项A是说他们已经买褐色的地毯，表明对话过去发生的事情；选项C是说他们有褐色的家具，此项目与其他选项谈论的地毯内容不符合，故可以排除；选项D是说红色的地毯和家具比较合适，故听音重点

52、放在男士的回答上But I still wish wed bought the brown one.(但是我还是希望买褐色的地毯。)这是一个典型的虚拟语气句型，表明男士还是比较中意褐色的地毯，但他却没有买。所以答案是B。圈定关键词 brown carpet, like, furniture听前预测 根据关键词推测对话内容与谈论买地毯有关，问题关注在地毯的颜色上，可能询问说话人的态度和意见。12. A) He likes the current temperature. B) He wishes the weather would get hotter. C) He cooked every b

53、it of the food. D) He knows he will like the food.这道题您没有回答 【回答错误】答案:D听力原文 W: I hope I havent made this chili too hot for you.M: Too hot for me? It couldnt be. I love spicy food.Q: What does the man mean?答案解析 推理判断题。本题询问男士的话是什么意思，一般短对话都是针对第二个人说的话提问的，本题也不例外，故听音重点放在男士的回答上It couldnt be. I love spicy food

54、. (不会的，我喜欢辛辣的食物。)选项A和B都是关于天气的阐述，它们的干扰性在于简单地把hot理解成“天气热”，其实它还指食物辛辣。选项C和D是谈论食物的，所以答案是D。圈定关键词 temperature, wishes, weather, food听前预测 根据关键词推测对话内容与谈论天气或者食物有关，可能询问说话人的意思或者态度。13. A) He is often asked to go and see movies. B) He would like to go and see the new movie. C) He went to see the movie last month.

55、 D) He obviously doesnt want to see the movie.这道题您没有回答 【回答错误】答案:D听力原文 W: Would you like to go and see a new movie with us?M: Thats the last thing in the world I would ever want to do.Q: What does the man mean?答案解析 推理判断题。选项表明对话内容，与谈论电影话题有关，而且各选项的主语都是He，所以听音重点放在男士的回答上Thats the last thing in the world

56、I would ever want to do.(那是我最不想做的事。)由此推断男士不想去看电影，所以答案是D。圈定关键词 movies, 1ike, see听前预测 根据关键词推测对话内容与谈论男士看电影的情况有关，问题可能是询问说话人的意思。14. A) He is counting the days of the holiday. B) He is not planning to go home. C) He is eager to go back home. D) He is going over his lessons.这道题您没有回答 【回答错误】答案:C听力原文 W: Is your brother looking forward to going home for the winter holiday?M: He has been counting the days recently.Q: What can be inferred about the rnans brother?答案解析 推