琼州学院 09通信工程专业《专业英语》试卷

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最新信息与通信工程专业英语-试卷及答案

最新信息与通信工程专业英语-试卷及答案
2.如果我们把光波看作一种电磁波,那么无线通信的历史可以追溯到宇宙的起源。自从远古人类开始通过在山顶之间呐喊的方式来传递信息,人类便开始希望通过无线进行便捷有效的交流。
If we think of light as an electromagnetic wave, the history of wireless communication can be traced back to the origin of the universe. Since ancient humans began to transmit information by shouting from top to top, they began to hope for convenient and effective communication through wireless.
The addition of input weights and thresholds makes neurons more flexible and powerful. Neurons have the ability to adapt to specific situations by changing weights or thresholds.
(2)传导率conductivity
(3)模式识别pattern recognition
(4)种类category
(5)数字技术digital techniques
(6)语音识别speech recognition
(7)磁共振magnetic resonance
(8)虚拟现实virtual reality
(3)Bandwidth频带宽度
(4)Conductor length导体长度

大学《专业英语》课程考试试卷A(含答案)

大学《专业英语》课程考试试卷A(含答案)

某大学《专业英语》课程考试试卷A适应专业:考试日期:考试时间:120分钟考试形式:闭卷试卷总分:一、单词互译(16分):brake shoe: torque:differential: monocoque body:lubricant: steering wheel:hydrocarbon: the contact breaker point:前束:三元催化转化器:交流发电机:电阻:凸轮轴:动力转向:节气门:柴油机:二、写出下列简写词语的英文全称,并译成汉语(16分):ZEV: CO:PM: EGR:ABS: TDC:ICE: OPEC:三、按要求填空(15分,每小题3分):1.The parts of car can be grouped into four major categories:engine,, and 。

2.The transmission systemcomprises ,,,rear axle and differential ,3.The front wheels are arranged at various angles to the car frameto provide good steering control and stability, The angles arediscussed in the following order: ,,steering axis,and ,4. 2-3% vehicle exhaust emissions consist of toxic substances suchas:,,。

5.The four strokes of an engine are: ,, , 。

四、把下列句了译成中文(30分,每小题6分):1.Around 77% consists of metals ,which are ,on the whole ,easilyrecyclabe ,albeit with some degradation in quality.2.Turning the steering wheel turns the steering shaft to which a wormgear is attached within the steering gear box.3.The basic job of the suspension system is to absorb the shocks causedby irregular road surfaces that would otherwise be transmitted to the vehicle and its occupants ,thus helping to keep the vehicle ona controlled and level course ,regardless of road condition.4.Because the disc is not enclosed all the way round ,the heat generatedwhen the brakes are applied is dissipated very much more quickly than it is from brake shoes which are entirely enclosed inside a drum.5.The question of environmental impact therefore no longer remains amicro-consideration but becomes a macro-issue-affecting not only the developed countries that consumes materials but also an increasing number of developing countries that now produce them.五、翻译(23分)Cars and other motor vehicle are constructed from a complex mix of raw materials. Steel(iron together with small amounts of additional minerals) forms the bulk of the motorcar-its primary use is in the body shell, the wheel,the drivertrain and parts of the engine. Other metals are also important,but to differing degrees.Aluminium is used by a number of manufacturers for the body shell and for many engine components. Iron and zinc are also used for various components (including the exhaust system and engine blocks).Precious metals are becoming more important with the widespread use of catalytic converters.Copper and lead are also used(copper in wiring, lead in betteries)The motor industry is therefore a major customer for metal producers, and the pproportion of metal consumption used in tuansport by the maindeveloped countries is:Iron and steel 30% Lead 46%Aluminium 23% Platinum 41%(exhaust fcontrol)某大学《专业英语》课程考试试卷A答案一、单词互译(16分):制动蹄扭矩差速器无骨架式车身润滑油转向盘碳氢化合物断电器触点toe-in the three way catalytic converteralternator resistor camshaftpower steering choke valve disel engine二、写出下列简写词语的英文全称,并译成汉语(16分):ZEV: zero-emission vehicle 零排放汽车CO:carbon monoxide 一氧化碳PM:particulate matter 微粒EGR:Exhaust Gas Recirculation 废气再循环系统ABS:Anti-lock Brake System 自动防抱死系统TDC:top dead centre 上止点ICE:internal combustion engine 内燃机OPEC:Organization of Petroleum Exporting Countries 石油输出国组织三、按要求填空(15分,每小题3分):1.body chassis electrical equipmeng2.clutch gearbox propellor shaft driven wheels3.caster camber toe-in turning radius4. CO HC NOx5.ingduction stroke compression strokepower stroke exhaust stroke四、把下列句了译成中文(30分,每小题6分):1.大约77%由金属构成,虽然质量有所降低,但总的说来金属是易于重复利用的。

2009年专业英语基础知识真题

2009年专业英语基础知识真题

2009年英语专业基础知识真题I. Listening Comprehension (50 points)Directions: In Sections A, B, C and D you will hear everything ONCE ONLY. Listen carefully and then write down your answers on your , ASWER SHEET with a single line through the center.Section A Short Conversations ( 10 points, 1 for each)Directions: In this section, you will hear ten short conversations between two speakers. At the end of each conversation, you will hear a question. You will be given10 seconds to answer each question you hear.1. A. The gym is scheduled to open tomorrow. B. The new gym is open only to kids.C. There's a new project going on at the gym.D. He's too busy to go to the gym.2. A. Introduce the man to Jane soon. B. Ask Jane if the man could have the book.C. Loan the book to the man after Jane.D. Check with Jane if she's finished the book.3. A. He is used to living in a large apartment. B. She knows the man's neighbor who is moving out.C. He knows about a larger apartment she can rent.D. The woman should go and see the man's apartment.4. A. Call to make sure if there's a heavy storm tomorrow. B. Leave for the airport earlier tomorrow.C. Cancel their vacation plans.D. Check their flight schedule in the morning.5. A. Ask the man to produce his driver's license. B. Go and find out if the wallet is brown in color.C. Show the man some family pictures.D. Show the man a wallet.6. A. Have the man preside over the opening of the exhibit alone. B. Find out what time the exhibit opens.C. Stay at home and take a rest.D. Help the man arrange the opening of the exhibit.7. A. Purchase the car he likes so much. B. Write a check for the new car.C. Try to sell his car before buying Dave's.D. Find out how much the car costs.8. A. He can meet the woman in the afternoon. B. He would like to discuss the idea right away.C. He thinks the woman's idea is a good one.D. He will try to find some time to discuss the special issue with the woman.9. A. The woman is afraid that she'll have to pay a fine. B. He has paid the fine for the woman.C. He's returning the book soon.D. He returned the book to the library.10. A. See the exhibit when it goes to another city. B. Try not to miss a pop show next time.C. Go to the museum next week when the exhibit is on again.D. Seize a chance whenever possible.Section B Long Conversations (14 points, 1 for each)Directions: In this section, you will hear two long conversations between two speakers. At the end of each conversation, you are required to choose the correct answer (A, B, C or D) to each of the following questions or judge whether the following given statements are true or false.Conversation 1Statements 11 to 20 are based on the conversation you have just heard. Decide whether each of the following statements is true or false.11. The staff members of the restaurant share in decision-making.A. TrueB. False12. The owner, Paul, always has the final say when disagreement comes up.A. TrueB. False13. Mr. Paul Thornton is the owner of the restaurant.A. TrueB. False14. The restaurant is located in the countryside of Australia.A. TrueB. False15. Alan has been with Paul for five years.A. TrueB. False16. Paul once lectured on cooking with practical demonstrations in Australia and New Zealand.A. TrueB. False17. Paul wanted to set up his business in a competitive place.A. TrueB. False18. The restaurant used to be a farmhouse.A. TrueB. False19. The restaurant is attractive because customers are used to those old dishes.A. TrueB. False20. Alan doesn't want to have his recipe publicized in the magazine.A. TrueB. FalseConversation 2Questions 21 to 24 are based on the conversation you have just heard.21. What's the relationship between the speakers?A. They're roommates.B. They're classmates.C. They're cousins.D. They're lab partners.22. Why was the man worried at first?A. He couldn't decide on a topic for his paper.B. He hadn't heard from his family for a while.C. He thought his paper was late.D. He thought the woman had been ill.23. According to the man, how do some bees use their sense of smell?A. To find their way back to the nest.B. To locate plant fibers.C. To identify kinds of honey.D. To identify relatives.24. What will the man probably do over the weekend?A. Visit his parents.B. Plan a family reunion,C. Observe how bees build nests.D. Write a paper. Section C Long Passages (14 points, 1 for each)Directions: In this section, you will hear two long passages. At the end of each passage, you are required to choose the correct answer (A, B, C or D) to each of the following questions or judge whether the following given statements are true or false.Passage 1 Questions 25 to 28 are based on the passage you have just heard.25. According to the speaker, some job applicants were rejectedA. because they eliminated their names from the applicants' list themselvesB. because of their inadequate education as shown in their poor spelling in writing the resumeC. because they failed to give a detailed description of their background in their applicationsD. because of their carelessness to spell the company's name incorrectly26. Perfectionists refer to those whoA. pay too much attention to details only to lose their major objectivesB. know how to adjust their goals according to the circumstancesC. demand others to get everything absolutely rightD. are capable of achieving perfect results in whatever they do27. The example of the Apollo II moon launch is to illustrate thatA. minor mistakes can be ignored in achieving major objectivesB. keeping one's goal in mind helps in deciding which details can be overlookedC. adjustments are the key to the successful completion of any workD. failure is the mother of success28. The passage is mainly talking aboutA. not to be a perfectionistB. details and major objectivesC. importance of adjustmentsD. hard work plus good luckPassage 2Statements 29 to 38 are based on the passage you have just heard. Decide whether each of the following statements is true or false.29. Professor Hill does not think that many British newspapers are real newspapers because they don't contain news at all.A. TrueB. False30. In Britain, the most popular newspapers are to instruct people.A. TrueB. False31. The real newspapers that report the facts are more serious than the popular papers but the latter have a largercirculation.A. TrueB. False32. Facts show that the vast majority of British readers want no proper papers at all.A. TrueB. False33. Professor Hill thinks highly of the newspaper he buys every day even though it is of a small circulation.A. TrueB. False34. The editorial column of Professor Hill's favorite newspaper doesn't always support govermnent policy.A. TrueB. False35. If an intelligent person finds a copy of Professor Hill's favorite newspaper 50 years from now, he will still find it shocking and surprising.A. TrueB. False36. Professor Hill likes buying various newspapers to read.A. TrueB. False37. According to Professor Hill, the popular newspapers are much worse than his favorite newspaper.A. TrueB. False38. From the passage, we can see that Professor Hill looks down upon readers of the most popular newspaper.A. TrueB. FalseSection D News Broadcast (12 points, 1 for each)Directions: In this section, you will hear four news items. At the end of each news item, you are required to choose the correct answer (14, B, C or D) to each of the following questions or judge whether the following given statements are true or false.News Item 1Statements 39 to 43 are based on the news you have just heard. Decide whether each of the following statements is true or false.39. More than 1,000 Rwandan refugees have returned home after almost two years in Congo.A. TrueB. False40. Military officials in Kigali say the refugees were recalled from the Congolese city of Kisangani.A. TrueB. False41. Rebels in Kisangani are trying to overthrow the Congolese governmentA. TrueB. False42. In June, Rwandan soldiers clashed with Ugandan soldiers.A. TrueB. False43. After the clashes, both sides agreed to the United States' control of the city.A. TrueB. FalseNews Item 2Statements 44 to 46 are based on the news you have just heard. Decide whether each of the following statements is true or false.44. Two African presidents have spoken of African wars again.A. TrueB. False45. The two presidents said money would be better spent on fighting Aids or building roads and bridges.A. TrueB. False46. The two presidents will attend a meeting Monday in Lusaka to discuss the war in Congo Kinshasa.A. TrueB. FalseNews Item 3Questions 47-48 are based on the news you have just heard.47. The Justice Department has accused the industryA. producing dangerous products ofB. conspiring to hide the health dangers of smokingC. not funding a ten-billion-dollar anti-smoking programD. not having changed its marketing practices48. What do the government lawyers ask the judge to force the industry to do?A. To change its marketing practices.B. To fund a ten-billion-dollar anti-smoking program.C. To stop the cigarette production.D. Both A and B.News Item 4 Questions 49-50 are based on the news you have just heard.49. What's the plan GM's CEO announced at the automaker's annual shareholders meeting?A. Close vehicle assembly plants.B. Close vehicle parts plants.C. Job-cuts.D. Both A and B.50. Which is NOT the reason for GM's heavy burden?A. Slumping sales.B. Employee's wages.C. Employee health care.D. Rising cost of raw materials.II. Vocabulary (35 points, 1 for each)Directions: There are 35 sentences in this section.Beneath each sentence there are four choices. Choose the best one to complete each sentence. Mark the correct choice on your ANSWER SHEET.51. his poor record in school, I think he should study harder.A. In view ofB. In case ofC. In spite ofD. In charge of52. Nancy was surprised that they had . They seemed to be a happy couple.A. split upB. broken downC. fallen throughD. cut off53. No horse has a speed _ _ to that of ours.A. comparableB. comparativeC. contradictedD. compatible54. It was her to die in a foreign country, far from her family.A. destinationB. destinyC. dignityD. luck55. Hurricanes are killer winds, and their power lies in the physical damage they can do.A. cumulativeB. destructiveC. turbulentD. prevalent56. If you keep getting wrong numbers, your phone could beA. deceptiveB. ineffectiveC. deficientD. prevalent57. popular belief that classical music is too complex, it achieves a simplicity that only a genius can create.A. Subject toB. Contrary toC. Familiar toD. Similar to58. There are some faults which men readily , but other not so readily.A. acknowledgeB. admitC. confessD. concede59. Prague offers visitors a series of excursions and leads them into a rich and past.A. variableB. diverseC. differentD. changeable60. To produce a mighty book, you must choose a great .A. matterB. topicC. themeD. thesis61.With prices so much, it hard for the company to plan a budget.A. wavingB. fluctuatingC. maintainingD. reserving62. W With all its advantages, the artificial intelligence is by no means without its .A. boundariesB. restraintsC. confinementsD. limitations63. They decided to the traffic away from the affected areas.A. shiftB. adjustC. divertD. change64. Y our decision will a great strain on our friendship.A. imposeB. proposeC. exposeD. suppose65. Things happening in that country are televised to people all over the world.A. liveB. livelyC. aliveD. livingly66. We expect Mr. White will Class Two when Miss Brown suffers from heart attack.A. take overB. take upC. take offD. take to67. The accident _ him of his sight and the use of his legs.A. excludedB. disabledC. deprivedD. gripped68. He offered to college.A. see me throughB. look me throughC. bring me throughD. see through me69. Talking about something which affects them personally is motivating for students.A. chieflyB. ironicallyC. currentlyD. eminently70. I don't know you want to keep the letter. I've it up.A. crackedB. tomC. brokenD. disposed71. These measures are just beginning toA. take placeB. take partC. take effectD. take after72. We have bought an ivory sculpture, which is flawlesslyA. inquisitiveB. explicitC. fragrantD. exquisite73. When the crowd saw the prize-fighter stretch out on the canvas, shouts and cheersA. broke upB. broke forthC. broke throughD. broke upon74. Outside my office window, there is a fire on the right.A. climbB. escapeC. stepD. stair75. Some delegates didn't object to the proposal but stated that they would the right to comment on it at a later time.A. conserveB. preserveC. protectD. reserve76. A budget is an estimate of probable future income andA. awardB. revenueC. expenditureD. bonus77. If a tourist doesn't have a(n) passport, he will be prevented from entering a country.A. operativeB. validC. efficientD. effective78. " If we fail to act now," said Tom, "we'll find ourselves this later on."A. pay backB. pay forC. pay upD. pay off79. Eating too much fat can heart disease and cause high blood pressure.A. attribute toB. attend toC. contribute toD. devote to80. The doctor enjoyed both his work and his life. He had never felt any between these two things.A. constrictB. constraintC. conflictD. construct81. The bird its wings and flew away.A. fluctuatedB. clappedC. flappedD. flung82. All of us must be on our guard against those who always us.A. flatterB. admireC. falterD. criticize83. His intelligence and experience will enable him to the complicated situation.A. cope withB. settle downC. intervene inD. interfere with84. Some people either avoid questions of right and wrong or just remain neutral about them.A. violentlyB. enthusiasticallyC. sincerelyD. deliberately85. She hopes to her artistic talents in the job.A. applyB. utilizeC. employD. availIII. Grammar (30 points, 1 for each)Direction: There are 30 sentences in this section. Beneath each sentence there are four choices. Choose the best one to complete each sentence. Mark the correct choice on your ANSWER SHEET.86. , her proposal is of greater value than yours.A. All things consideringB. All things being consideredC. All things consideredD. All things to be considered87. Everybody says she is a good student, ?A. isn't sheB. doesn't sheC. don't theyD. doesn't it88. Y ou me up: I don't have to go to school today. I have asked for sick leave.A. needn't have wokenB. don't need to have wokenC. didn't need to have wokenD. needn't wake89, University teaching in the United States is very different at both undergraduate and graduate levels of many overseas countries.A. from thoseB. thanC. from thatD. from which90. Human beings are superior to animals they can use language as a tool to communicate.A. in thatB. for thatC. for whichD. in which91. My pain apparent the moment I walked into the room, for the first man I met asked sympathetically: "Are you feeling all right?"A. must beB. had beenC. must have beenD. had to be92. in all parts of the state, pines are the most common trees in Georgia.A. FoundB. Finding themC. To find themD. They are found93.Hot air accompanied by high relative humidity feels warmer thanA. as it actuallyB. it actually isC. actually it isD. is actually it94. Not until an infant hedgehog opens its eyes its nest to follow its mother about.A. it leavesB. and leavesC. leavingD. does it leave95. Little schooling the two young men had, the Wright brothers were the first to discover the secret of air travel.A. asB. althoughC. no matter howD. however96. , he prefers a quiet life.A. To be an old man nowB. Being an old man nowC. Having been an old man nowD. With an old man now97. The bite of most varieties of poisonous spiders is the sting of a bee.A. more no deadly thanB. no deadly more thanC. no more deadly thanD. more deadly than not98. Earthworms occur adequate moisture and food and the necessary soil conditions are found.A. andB. butC. howeverD. wherever99. They lost their way in the forest, and made matters worse was that night began to fall.A. thatB. itC. whatD. which100. ---It was cold yesterday.---A. So it wasB. So was itC. Such it wasD. Such was it101. He knows little of mathematics, of chemistry.A. as well asB. and still lessC. no less thanD. and still more102. After twenty years abroad, William came back only his hometown severely damaged in an earthquake.A. to findB. findingC. to have foundD. to be finding103. The physicist has made a discovery, of great importance to the progress of science and technology.A. I think which isB. that I think isC. which I think isD. which I think it is104. He is not under arrest, any restriction on him,A. or the police have placedB. or have the police placedC. nor the police have placedD. nor have the police placed105. We are taught that a business letter should be written in a formal style in a personal one.A. rather thanB. other thanC. better thanD. less than106. He might have lost his daughter the timely arrival of the policemen.A. but forB. except forC. besidesD. except107. Physics is the present day equivalent of used to be called natural philosophy, from most of present day science arose.A. which, whatB. that, whichC. what, whichD. what, that108. Mother decided to go to the supermarket as soon as sheA. finishes what she didB. finished what she didC. finished what she was doingD. would finish what she was doing109. With all the data he needed , peter began to write his thesis.A. collectingB. being collectedC. to be collectedD. collected110. It was a long time the neighbors found that the old lady had been dead of cold.A. whenB. untilC. sinceD. before111. In the course of the whole life the wise businessmen do far more than just money.A. madeB. to makeC. makeD. making112. Our scientific findings cannot be regarded as in such a short period of time.A. to have been obtainedB. to be obtainedC. having been obtainedD. being obtained113. Going out for a holiday is a good way to relax and refresh yourself, and this is especially true it comes to preventing depression.A. sinceB. beforeC. afterD. when114. How strict tutors are with their pupils a strong impact on the quality of their pupils’ academic papers.A. hasB. haveC. havingD. to have115. you are proven innocent, you can shake off all the shadows cast on you.A. whileB. even thoughC. now thatD. forⅣ. Error Identification (20 points, 2 for each)Directions: Each sentence has only one mistake. Please point out the mistaken item. Then mark the corresponding letter on your ANSWER SHEET.116. Light rays what enter the eye must be focused onto a point on the retina in order for a clear visual imageA B Cto form.D117. Those part-time students expected to offer some jobs on campus during the coming summer vacation.A B C D118. Certain zoologists regard crows and ravens are the most intelligent of birds.A B C Dll9. Living in such a high-speed society, undeniably, computer is indispensable.A B C D120. Mr. Smith regretted to blame his secretary for the mistake, for he later discovered it was his own fault.A B C D121. Whenever we hear of a natural disaster, even in a distant part of the world, we feel sympathy for the peopleA B Cto have affectedD122. In the teaching of mathematics, the way of instruction is very traditional, with teachers giving lectures andA B Cstudents take notesD123. Ulysses S. Kay was among the United States composers visited the Soviet Union in I958 to participate in aA B Ccultural exchange program.D124. He has been hoped for a raise during the last four months, but his boss is reluctant to give him one.A B C D125. He cannot tell the difference between true praise and flattering statements making only to gain his favor.A B C DV. Cloze T est (15 points, 1 for each)Directions.: There are 15 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the ONE that best fits into the passage.Many professors are associated with a particular stereotype. The 126 image of a writer, for instance, is a slightly easy-looking person, locked in an attic, writing furiously for days 127. Naturally, he has his favorite pen and note-paper, or a beat-up typewriter, 128 which he could not produce a readable word.Nowadays, we know that such images 129. little resemblance to reality. But are they 130 false? In the case of at least one writer, it would seem not. Dame Muriel Spark, who 131 80 in February, in many ways resembles this stereotypical sitter. She is certainly not crazy, and she doesn't work in an attic. But she is rather 132 about the tools of her writing.She insists on writing with a certain type of pen in a certain type of notebook, which she buys from a certain 133 in Edinburgh called James Thin. In fact, so 134. is she that, if someone uses one of her pens 135, she immediately throws it away. And she claims she would have enormous difficulty writing in any notebook 136 those sold by James Thin. This could soon be a problem, as the shop no longer 137 them, and Dame Muriel's supply of 72-page spiral bound is nearly finished.As well as her 138 about writing materials, Dame Muriel Spark 139 one other characteristic with the stereotypical writer: her work is the most important thing in her life. It has stopped her from marrying, 140 the loss of her old friends and driven her from London to New Y ork to Rome. Today she lives in the Italian province of Tuscany with a friend. 126. A. historic B. antique C. senior D. traditional127. A. on finish B. on final C. on end D. on stop128, A. except B. without C. beyond D. on129. A. bear B. stand C. hold D. keep130. A. extremely B. possibly C. likely D. completely131. A. observed B. entered C. saw D, turned132. A. particular B. specific C. peculiar D. special133. A. grocer B. chemist C. stationer D. baker134. A. mysterious B. conventional C. superstitious D. traditional135. A. by fortune B. by accident C. by purpose D. by one136. A. much as B. rather than C. such as D. other than137. A. piles B. stores C. stocks D. conceals138. A. devotion B. preoccupation C. worship D. obsession139. A. shares B. agrees C. sides D. possesses140. A. spent B. caused C. exhausted D. tired。

09-10专业英语期末试卷A及部分答案

09-10专业英语期末试卷A及部分答案

《专业英语》期末试卷A 卷一. V ocabulary(词汇)(共20分)(一) Put the following words and phrases into Chinese. (写出下列词组的汉语)(10×1分=10分)1. active components 活性成分2. assembler language 汇编语言3. dual-trace oscilloscope 双踪示波器4. current gain 电流增益5. forward biased正向偏置 6. Stripboard条板 7. object-oriented 面向对象的 8. forward biased正向偏置 9. computer literacy电脑知识10. international roaming ability 国际漫游能力(二) Fill the blanks with the corresponding English abbreviations(根据汉语写出相应的英语缩写) (10×1分=10分)1. 调幅AM2. 集成电路IC3. 双极型晶体管Bipolar transistor4. 双列直插封装Dual In-Line Package5. 阴极射线管A cathode ray tube6. 触发器Trigger7. 彩信MMS装 订 线8.微软认证软件开发专家Microsoft certified software development specialists9.码分多址Code Division Multiple Access10.全球移动通信系统Global System for Mobile Communication Systems1.The use of vacuum tubes declined rapidly when a semiconductor device wasinvented that could perform many of the functions previously associated withvacuum tubes.使用真空管发明的半导体器件,可以进行许多以前与真空管的功能迅速下降。

通信工程专业英语习题

通信工程专业英语习题

第一课1.将下述句子译成英文。

(1) An analog information source produces messages that are defined on a continuum, whilea digital information source produces a finite set of possible messages.(2) The beacon-fire tower in ancient China was a communications system.(3) Show that the entropy is a maximum when the probability of sending a binary 1 is equalto the probability of sending a binary 0 .(4) Information capacity is a measure of how much information can be transferred through acommunications system in a given period of time .(5) The wider the bandwidth and the longer the time of transmission, the more informationcan be conveyed through the system .2.Answer the following questions :(1) Samuel Morse developed the first electronic communications system in 1837 .(2) Y es.(3) The vacuum-tube triode .(4) Hartley’s law simply states that the wider the bandwidth and the longer the transmissiontime, the more information that can be conveyed through the system . The Shannon’s formula is I=B log2(1+S/N) , where I=information capacity(bps), B=bandwidth(Hz), S/N=signal-to-noise power ratio(unitless) .(5) (a) VLF, (b) MF, (c) SHF第二章信息源1.根据课文回答下列问题。

2009年大学英语专业知识真题

2009年大学英语专业知识真题

2009年英语专业知识试卷第一部分英语写作与翻译(共1 50分)I.Writing(100 points)Section A:Note—writing(30 points)Write on ANSWER SHEET a note of about 60 words based on the following situation:Y0u’ve learned that your friend Jimmy is in these days.Write him a note expressing your concern,asking after his health and giving your best wishesMarks will be awarded for content,organization,grammar and appropriateness.Section B Composition (70 points)Nowadays many Students,especially primary school and middle school students, have home tutors.The purposes of employing home tutors are different and people’s attitudes towards home tutoring are different as well.Write on ANSWER SHEET a composition of about 150 words on the following topic:Positive or Negative Aspects of HomeY ou are supposed to write in three parts:In the first part, state your point of view.In the second part, support your view with one or two reasons.In the last part, bring what you have written to a natural conclusion or a summary.Marks will be awarded for content, organization, grammar and appropriateness.II. Translation (50 points)Section C Translate these sentences into English (20 points, 4 for each).1.这三家公司的合作使他们能获得足够的资金来发展他们的事业。

通信英语综合练习题.doc

通信英语综合练习题.doc

《通信英语》综合练习题(即课后练习题)(第一章)•请将下述词组译成英文:抽样量化与编码话路幅值抽样频率抽样速率脉冲流重复率编码过程模拟信号传输质量数字通信数字传输含噪声的环境传输路由信噪比信号电平地面系统噪声功率二进制传输反向操作8位码序列接收端帧格式同步宁二•请将下述词组译成中文:1.the schemes for performing these three functions2.the series of amplitude values3.the speech channel of telephone quality4.the sequence of 8~binary digits5.the minimum theoretical sampling frequency6.the voice channel occupying the range 300 Hz to 3. 4 kHz7.the 8~digits per sample value8.the sparking of a car ignition system9.the stream of the pulses with a repetition rate of 64 kHz10.the relationship of the true signal to the noise signal11.the signal received from a satellite12.the complete information about a particular message13.the shape of the transmitted signal14.the a/ttenuation introduced by transmission path15.the unit that converts sampled amplitude value to a set of pulses16.the sequence relating to channel 1, 2 and so on17.the unique sequence of pulses called synchronization word18.the terrestrial system19.the presence or absence of the pulse20.the high-speed electronic switch21.the time division multiplexer22.the Time Division Multiplexing五.请将下述短文译成中文:1.If we consider binary transmission, the complete information about aparticular message will always be obtained by simply detecting the presence or absence of the pulse. By comparison, most other forms of transmission systems convey the message information using the shape, or level of the transmittedsignal; parameters that are most easily affected by the noise and attenuation introduced by the transmission path. Consequently there is an inherentadvantage for overcoming noisy environments by choosing digital transmission.2.The reader may ask, how does the demultiplexer know which group of 8~digitsrelates to channel 1, 2, and so on? Clearly this is important! The problem is easily overcome by specifying a frame format, where at the start of each framea unique sequence of pulses called the frame code, or synchronization word, isplaced so as to identify the start of the frame. A circuit of thedemultiplexer is arranged to detect the synchronization word, and thereby itknows that the next group of 8~digits corresponds to channel 1.3.Noise can be introduced into transmission path in many different ways; perhapsvia a nearby lightning strike, the sparking of a car ignition system, or thethermal low-level noise within the communication equipment it self. It is the rela tio nship of the t rue signal to the noise signal, known as the signal一to-noise ratio, which is of most interest to the communication engineer・4.Basically, if the signal is very large compared to the noise level, then aperfect message can take place; however, this is not always the case. Forexample, the signal received from a satellite, located in far outer space, is very week and is at a level only slightly above that of the noise・Alternative examples may be found within terrestrial systems where, althoughthe message signal is strong, so is the noise power・5.So far we have assumed that each voice channel has a separate coder, the unitthat converts sampled amplitude values to a set of pulses; and decoder, theunit that performs the reverse operation. This need not be so, and systems are in operation where a single codec is shared between 24, 30, or even 120separate channels.6.A high-speed electronic switch is used to present the analog informationsignal of each channel, taken in tern, to the codec. The codec is thenarranged to sequentially sample the amplitude value, and code this value into the 8 - dig it sequence. Thus the output to the codec may be seen as asequence of 8 pulses relating to channel 1, then channel 2, and so on. Thisunit is called a time division multiplexer.(第九章)一.请将下述词组译成英文:个人通信通信标准固定电话业务网络容量移动交换中心国际漫游宽带业务接口转换频谱分配模拟方式蜂窝通信原理拥塞蜂窝裂变基站移动交换中心寄存器收费功能接入方法突发脉冲传输方式开销信息切换算法短消息服务技术规范二.请将下述词组译成中文:1.the total access communication system2.the global mobile communication system3.the time division multipie access4.the facsimile and short message service5.the fixed communication networks6.the more personalized system7.the cost and quality of the link8.the market growth9.the fixed telephone service10.the coaxial cable11.the interface conversion12.the cellular communication principle13.the frequency reuse and cell splitting14.the cochannel interference15.the theoretical spectral capability16.the micro-cellular system17.the base station transceiver18.the subscriber register19.the burst transmission mode20.the overhead information21.the advanced handover algorithms22.the facsimile and short message service23.the GSM technical specifications五.请将下述短文译成中文:1.The success of mobile systems across the world is a sign that communication ismoving to wards a more personalized, convenie nt sys tem. People who have to use a mobile phone on business soon begin to realize that the ability to phone any time, any place in one' s personal life rapidly becomes a necessity, not a convenience.2.The fixed telephone service is global and the interconnection varies fromcoaxial cable to optical fiber and satellite. The national standards aredifferent, but with common interfaces and interface conversion,interconnection can take place. For mobi 1 e the problem is far more complex, with the need to roam creating a need for complex networks and systems. Thus in mobile the question of standards is far more crucial to success than fixed systems.3.The GSM system is based on a cellular communications principle which was firstproposed as a concept in the 1940s by Bell System engineers in the US. Theidea came out of the need to increase net work capac ity and got round thefact that broadcast mobile networks, operating in densely populated areas,could be jammed by a very small number of simuItaneous calls. The power of the cellular system was that it allowed frequency reuse.4.The cellular concept is defined by two features, frequency reuse and cellsplitting. Frequency reuse comes into play by using radio channels on the same frequency in coverage areas tha/t are far enough apart not to cause cochannel interference. This allows handling of simuItaneous calls that exceed thetheoretical spectral capacity. Cell splitting is necessary when the trafficdemand on a cell has reached the maximum and the cell is then derived into amicro-cellular system.5.The cell coverage area is cont rolled by a base station which is it self madeup of two elements. The first element is the transmission system whichcommunicates out to the mobile and also receives information from it to set upand maintain calls when actually in operation. The base station transceiver iscontrolled by the base station controller, which communicates with the mobileswitching center --------------------------------- the essential link to thelocal public swit ched t elephone net work, and to the subscriber data whichis stored in registers within the system.6.The GSM system operates in a burst transmission mode with 124 radio channels inthe 900 MHz band, and these bursts can carry different types of information.The first type of information is speech, which is coded at 6. 5 kbit/s or 13kbit/s. The second type is data, which can be sent a/t 3. 6 kbit/s, 6 kbit/s or12.6 kbit/s. These two forms of information are the useful part of thetransmission, but have to be supported by overhead information which is sent incontrol channels.7.The use of dig ital radio t ransmission and the advanced handover algor it hmsbetween radio cells in GSM networks allows for significantly better frequentlyusage than in analogue cellular systems, thus increasing the number ofsubscribers that can be served. Since GSM provides common standard, cellularsubscribers will also be able to use their telephones over the entire GSMservice area. Roaming is fully autoina/tic bet ween and wit hin all countriescovered by GSM system.8.In addition to international roaming, GSM provides new user services, such ashigh speed data communication, Facsimile and short message service. The GSMtechnical specifications are designed to work in concert with other standards,e. g. ISDN. Interworking between the standards is in this way assured. In thelong term perspective cellular systems, using a digital technology, will becomethe universal method of telecommunication.《通信英语》综合练习题答案说明:山于《通信英语》的综合练习题全部选自教材中第一、九单元的课后练习,而这些练习又都出自课文,所以可在课文中查找答案,这里就不再给出答案。

09级《大学英语》分级考试试卷A(普本)

09级《大学英语》分级考试试卷A(普本)

.命题部门:外国语学院试卷序号:A考试形式:闭卷学分:考生校区:浦口考生__考生__考生__考试__09级普本<英语专业除外>##审计学院2009级《大学英语》分级考试注意事项1.本次考试答题纸分两部分:答题卡〔供阅卷机使用〕和答题纸.2.客观题〔Part I – Part III〕做在答题卡上,主观题〔Part IV– Part VI〕做在答题纸上.3.划线要求:<1> 用HB—2B铅笔按照答题卡上的X例填写.<2> 要有一定粗度,浓度盖过字母底色<3> 代号划写不能用钢笔或圆珠笔,否则试卷作废.<4> 修改要用橡皮擦干净,注意不要划错行.4.答题卡上的学校代号和##号填写学生学号.不足十位数的请在学号前面加0,补足十位数.请在相应数字上划线.5.答题卡上的试卷代号一定要划,否则阅卷机无法识别.注意:不按要求填涂答题卡而造成阅卷机无法识别,得不到成绩,由本人负责.外国语学院大学外语教学部20##8月2009级《大学英语》分级考试试卷PartI.Reading Comprehension<40%>Directions:Read the following passages and choose the best answer to each of the questions or incomplete statements following the passage. You must read the four choicesmarked A,B,C and D, and decide which is the best answer. Then mark thecorresponding letter on the Answer Sheet with a single line through the center.<2’×20>Passage 1Questions 1 to 5 are based on the following passage.It has been a widespread belief that the American family is dying. But a new study reveals that the American family is stronger than ever. This study affords surprising evidence of the persistence of American commitments to family life.The American family is changing, not dying. It is becoming smaller, men and women are becoming more equal, and the divorce rate is higher. But despite the high divorce rate, marriage has never been more popular. The majority of divorced people remarry, but only 2% marry more than twice. Most marriages last a long time, and a large proportion of divorces are from teenage marriages. Depending on the specific situation, there’s often good reason for teenage marriages to break up.There is no evidence that children receive less attention from mothers who work outside the home than from mothers working inside the home. So far the amount of educational or development time hasn’t varied very much, whether or not the mother works outside the home. In fact, working mothers try to make up for it by setting aside time only for their children.The study shows that television is by far the most significant new childcare arrangement of this century. The most important activity for children up to age 14 is watching television.School is the second most time-consuming activity for children. They spend an average of about 19 hours a week in school. A larger proportion of children go to school earlier than ever before, and they stay in school longer. Another big change is that the proportion of very young children in daycare centers <日托站> has almost doubled in recent years. Compared with these two dramatic changes in child activity, the changes caused by mothers working outside the home appear very small.1 The main idea of this article is that _______.A. the American family is dyingB. young people today don’t want to get marriedC. the American family is changing, but it is stronger than everD. education has resulted in dramatic changes in the American family2 Which of the following statements is NOT true?A. Marriage is more popular than before.B. Many divorced people remarry.C. The majority of marriages last long.D. Working mothers devote less time to their children.3 The author of this article believes that ________.A. the American family is here to stayB. children should not watch so much televisionC. mothers should not work when their children are smallD. teenage marriages should be encouraged4 What is the most significant new childcare arrangement of this century?A. The daycare center.B. Television.C. The school.D. Development time.5 According to the writer, which two major factors have led to the belief that the Americanfamily is dying?A. The divorce rate is high and working mothers neglect their children.B. The divorce rate is high and children care more about television than anything else.C. Divorces are increasing and many teenage marriages break up.D. Children stay in school longer and mothers have little time to take care of them. Passage 2Questions 6 to 10 are based on the following passage.What you give your relatives, friends, husband, or wife can help you know yourself better. Also, what they give you can tell you something about their personality. Most gift-giving <andgetting> shows nothing more than the spirit of love and friendship. But it is possible to form some associations between the kinds of things bought and the people who buy them. Here is a guide to who gives you wha t --- and why.The clothes you wear tell something about your personality. They tell the world not only how you want to be seen but how you see yourself as well. When someone gives you something to wear that agrees with your self-image, they’resaying, "I agree with you. I like you the way you are.〞Such a gift should be taken as a form of compliment. On the other hand, a gift of clothing that does not match your personality could be an insult to your character.Making something by hand has become the exception in many countries toda y-somuchso that giving a homemade gift is sometimes considered unusual. If you receive a homemadegift, you’re lucky.It may not be made perfectly, but it will show a certain quality of love. People who give homemade gifts may be said to be very generous. They are given time and emotion, two important characteristics of being creative.A person who thinks of food when thinking of a gift is good example of what human warmth means. Whether you give a box of chocolates, a bag of oranges, or a ball of cheese, all carry the same message of comfort and support.People who give books as gifts either like reading or would like everyone to think they do. If you happen to receive a large, heavy book, this giver may be much more interested in the way things appear than in the way they actually are. Of course, reading is a way of feeling the emotions of another person and of learning new things. Giving a book can be a way of sharing a feeling or a newly learned meaning. The giver is probably trying to say to you what the book said to him.6 The first paragraph is written to tell readers that ________.A. the gifts you give can help you understand yourself betterB. the gifts you receive are helpful for you to know the personality of those who give themC. gifts can show friendship and loveD. there is a certain relationship between the kinds of gifts and the people who give them7 A person who likes the self-image of another person will give the latter ________.A. clothesB. a homemade giftC. a gift that agrees with the personality of the receiverD. a gift that matches the character of the giver8 Which of the following statements is NOT true according to the passage?A. What you wear can tell something about your personality.B. Homemade gifts are not welcomed in some countries.C. People who give books as gifts either like reading or would like everyone to think they do.D. Reading books given to you as gifts can be a way of sharing a feeling with the giver.9 If you give a large, heavy book as a gift, it may show that _________.A. you are knowledgeableB. the receiver is interested in readingC. you dislike readingD. you are more interested in the appearance of the book than in its contents10 People who want to show their love towards others often give _______.A. homemade giftsB. delicious foodC. expensive clothesD. interesting booksPassage 3Questions 11 to 15 are based on the following passage.My love of nature goes right back to my childhood, to the times when I stayed on my grandparent’s farm in Suffolk. I think it was my grandmother who encouraged me more than anyone: she taught me the names of wildflowers and got me interested in looking at the countryside, so it seemed obvious to go on to do zoology at university.I didn’t get my first camera until after I’d graduated, when I was due to go diving in Norway and needed a method of recording the sea c reatures I would find there. My father didn’t know anything about photography, but he bought me an Exacta, which was really quite a good camera for the time, and I went off to take my first pictures of sea starfish. I became keen very quickly, and I learnt how to develop and print.I’ve tried from the beginning to produce pictures which are always biologically correct. There are people who will alter things deliberately: you don’t pick up sea creatures from the middle of the shore and take them down to att ractive pools at the bottom of the shore without knowing you’re doing it.There can be a lot of ignorance in people’s behavior towards wild animals and it’s a problem that more and more people are going to wild places: while some animals may get used to cars, they won’t get used to people suddenly rushing up to them. The sheer pressure of people, coupled with the fact that there are increasingly few places where noone else has photographed, means that over the years, life has become much more difficult for the professional wildlife photographers.Nevertheless, wildlife photographers play a very important part in educating people about what is out there and what needs conserving. Although photography can be an enjoyable pastime, as it is to many people, it is also something that plays a very important part in educating young and old alike.11 The author decided to go to university and study zoology because _______________.A. she wanted to improve her life in the countrysideB. she was persuaded to do so by her grandmotherC. she was keen on the natural worldD. she wanted to stop moving around all the time12 How is the author different from some of the other wildlife photographers she meets?A. She tries to make her photographs as attractive as possible.B. She takes photographs which record accurate natural conditions.C. She likes to photograph plants as well as wildlife.D. She knows the best places to find wildlife.13 The author now finds it more difficult to photograph wild animals because ______________.A. there are fewer of themB. they have become more nervous of peopleC. it is harder to find suitable placesD. they have become frightened of cars14 According to the author, wildlife photography is important because it can make people realizethat ___________________.A. photography is an enjoyable hobbyB. we learn little about wildlife at schoolC. it is worthwhile visiting the countrysideD. it is important to look after wild animals15 Which of the following describes the author?A. Proud.B. Sensitive.C. Aggressive.D. Disappointed.Passage 4Questions16 to 20 are based on the following passage.If you have been joining in chat room conversations, or trading e-mail with net pals, you have become one of the millions who write in a special, short form of English.Throughout the world, every night children and their elders are "talking〞onlin e-many of them are talking at the same time.It is fast: trying talking to six people at once. It is convenient: three or four words per exchange. It takes cleverness, concentration and quick fingers.And it requires very simple language. There’s neither time nor space for explanations. Why waste precious key-strokes telling six friends you have to leave for a moment to take care of your little brother when BRB<= be right back> will do?Want to enter a conversation? Just type PMFJI <= pardon me for jumping in>.Interested in whom you’re talking to? Type A/S/L, the common request to know your pal’s age, sex and location. You may get 15/M/NY as a reply from your pal.If something makes you laugh, say you’re OTF <= on the floor>, or LOL <= laughing out loud>, or join the two into ROTFL <= rolling on the floor laughing>.And when it’s time to get back to work or go to bed, you type GTG <= got to go> or TTYL <= talk to you later>.People want to write as fast as possible, and they want to get their ideas across as quickly as they can. Capital letters are left in the dust, exceptwhen expressing feelings, as it takes more time to hold down the "shift〞key and use capitals. Punctuation is going, too.16 When people are online, they talk by_____.A. using body language.B. drawing some strange picturesC. making phone calls17 Internet makes many people in the world ______.A. talk at the same timeB. discover their friends and relativesC. pick out good things to buyD. find out about some problems in societyD. making use of an especially short form of English18 The underlined sentence "There’s neither time nor space for explanation〞<L.1, para. 4>means that _____.A. people should use words properlyB. people should know what time it is when they are talkingC. people online have to express themselves in a simple wayD. people should communicate in a funny way19 If you get 19/M/HK as an answer to your A/S/L, it means ______.A. the person who is talking to you is 19 from Hong Kong and he is highB. you are talking to a boy 19 years old and he lives in Hong KongC. you are talking to 19 boys from Hong Kong at the same timeD. the boy from Hong Kong has been online for 19 minutes20 Which of the following is a way to save online time?A. People seldom use capital letters or punctuation marks.B. Many people draw pictures.C. People only use the mouse instead of the keyboard.D. People never use the "shift〞key.Part II.Vocabulary and Structure<15%>Directions:There are 30 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence.Then mark the corresponding letter on the Answer Sheet with a single linethrough the center. <0.5’×30>21 My sponsor ______ me __________ money when I lost my job.A. worked … out by C. kept… out withB. helped … out with D. carried… out for22 ______ you have finished your work, you may go and have a rest now.A. Now that C. As wellB. In case D. Due to23 He grabbed me ______ and pulled me onto the bus.A. by an arm C. on the armB. by the arm D. with the arm24 Scarcely ___________ now without some sort of incident involving the old lady.A. a day passes C. does a day passB. passes a day D. has a day passed25 Finally, the thief handed everything _______ he had stolen to the police.A. which C. whateverB. what D. that26 The passengers were robbed ________ all their money.A. of C. fromB. off D. away27 You should not _______ the peace of others by speaking so loudly.A. prohibit C. disturbB. collapse D. ban28 He found a number of men already ________.A. worked C. to workB. work D. working29 Where did you _____ the magazine I was reading?A. lay C. remainB. lie D. let30 ________ danger man is often much wiser than usual.A. In a time of C. In the time ofB. In the times of D. In time of31 ______ these books to the library, as they will soon be overdue.A. Bring C. FetchB. Take D. Leave32 What you say is, in a ______, true; but I should express it differently.A. sense C. meaningB. concept D. significance33 The matter _____ you were arguing about last night had been settled.A. when C. thatB. for which D. what34 He climbed up into the tree and picked all the fruit ______ reach.A. within C. beyondB. off D. inside35 Paul doesn’t have to be made ________. He always works hard.A. study C. studiedB. to study D. studying36 There isn’t any difference between the two. I really don’t know _________.A. where to choose C. to choose whatB. which to choose D. to choose which37 It doesn’t matter if you are born in a duck-yard ____ you come from a swan’s egg.A. aswell C. as ifB. although D. since38 The house suddenly collapsed while it _______ down.A. pulled C. was being pulledB. had been pulled D. was pulled39 According to ______ they have told me, they should return in about three weeks.A. that C. whatB. any D. which40 Although the town had been ______ several times, little damage was done.A. attacked C. harmedB. injured D. struck41 When the little boy walked near the edge of the pond, his mother became very ______.A. eager C. anxiousB. keen D. frightening42 He used examples to _______ his argument.A. strengthen C. fixB. increase D. underline43 He ________ the whole list but still did not find his friend’s name.A. went by C. went intoB. went on D. went over44 There is always a _____ between what we say and what we do.A. crack C. gapB. room D. space45 In chemical factories, employees sometimes receive ______ pay for doing dangerouswork.A. add C. expensiveB. extra D. rich46 His parents died when he was young so he was ______ by his aunt.A. bred C. grown upB. fed up D. brought up47 The poor driver was still _____ when we pulled him out from under his car.A. live C. aliveB. lively D. living48 I’ve thrown away my old trousers. I’ll have to buy _______.A. some new pair C. a new pairB. a new one D. some new ones49 You ________ in person – a letter would have been enough.A. needn’t have come C. must not have comeB. shouldn’t have come D. can not have come50 I can’t keep ________ the teacher who speaks so fast.A. up C. withB. up with D. on withPart III.Cloze <10%>Directions:There are 20 blanks in the passage. For each blank there are four choices marked A, B, C and D. You should choose the one that best fits into the passage.Then mark the corresponding letter on the Answer Sheet with a single linethrough the center. <0.5’×20>Many teachers believe that the responsibilities for learning lie with the student. 51 a long reading assignment is given, instructors expect that students to be familiar with 52 in the reading even if they do not discuss it in class or take an examination.The 53 student is considered to be 54 who is motivated to learn for the sake of 55, not the one only interested in getting high grades. Sometimes homework is returned 56 brief written comments but without a grade. Even if a grade is not given, the student is 57 for learning the material assigned.When research is 58, the professor expects the student to take it actively and to complete it with 59 guidance. It is the 60 responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain 61 a university library 51 A. If C. BecauseB. Although D Before52 A. suggestion C. abstractB. context D. information53 A. poor C. averageB. ideal D. disappointed54 A. such C. anyB. one D. some55 A. fun C. learningB. work D. prize56 A. by C. forB. in D with57 A. criticized C. responsibleB. innocent D. dismissed58 A. collected C. assignedB. distributed D. finished59 A. maximum C. possibleB. minimum D. practical60 A. student’s C. a ssistant’sB. professor’s D. librarian’s61 A. when C. whyB. what D howworks; they expect students, 62graduate students, to be able to exhaust the reference 63 in the library. Professors will help students who need it, but 64 that their students not be 65 dependent on them.In the United States, professors have many other duties 66 teaching, such as administrative or research work. 67, the time that a professor can spend with a student outside of class is 68. If a student has problems with classroom work, the student should either 69 a professor during office hours 70 make an appointment. 62 A. particularly C. obviouslyB. essentially D. rarely63 A. selections C. sourcesB. collections D. origins64 A. hate C. likeB. dislike D. prefer65 A. too C. muchB. such D. more66 A. but C. withB. except D besides67 A. However C. FurthermoreB. Therefore D. Nevertheless68 A. plentiful C. irregularB. limited D. flexible69 A. greet C. approachB. annoy D. attach70 A. or C. toB. and D. butPart IV.Word-building <10%>Directions: Complete each of the following sentences with an appropriate form of the word in brackets. Write your answers on the Answer Sheet 2.<1’×10>71. My aunt almost fainted when she was told that what she bought at a very high price was not the________ drawing, but just a copy of it. <origin>72. The football players were trying to make an ______ on the national coach. <impress>73. Moreover, the threat of social violence increased the _______ of the government’s leaders.<anxious>74. I am ________ grateful to my master for all his help. <sincere>75. A _______ person thinks before speaking and considers the feelings of others. <think>76. This book is quite ______ anything I have ever read before. <like>77. My personal ________ with his family is deep. <involve>78. Speech and writing are man’s most important methods of ______. <communicate>79. I admire her because she is a ___ dancer. <talent>80. The ____ of Christie’s books shows no sign of going away. <popular>Part V.Translation<10%>Directions: Complete the sentences by translating into English the Chinese given in the brackets.Please write your translation on the Answer Sheet 2. <2’×5>81. ______________________________<就这个东西本身的质量和价格而言>, it is deserving ofour purchase.82. Several cars crashed into each other on the highway________________________ <由于浓雾>.83. _________________________<让我吃惊的是>, the husband slapped his wife in front of us.84. National Day is _________________________<即将到来>, we should tidy our dorm inadvance.85. He came to the meeting _____ 〔不顾天热〕.Part VI Writing<15%>Directions: For this part, you are allowed 30 minutes to write a short essay on the topic: Make Our Cities Greener.You should write at least 120 words following theoutline given bellow. Write your composition on the Answer Sheet 2. <15’>Your composition should be based on the following outlines:1. 我国城市绿化的现状2. 绿化的好处〔如:清洁空气,美化城市,改善气候……等等〕3. 怎样才能实现绿化。

通信工程专业英语习题答案

通信工程专业英语习题答案

通信工程专业英语习题答案练习参考答案第1单元信号与系统1. 完形填空(1) band-limited, cutoff frequencies, to, between, the information rate is proportional to the bandwidth of the channel, on, to, by, by simply increasing the number of levels, noise will cause the receiver to mistake one level for another, no matter how elaborately the data is coded, between, theoretical maxima.(2) from, a loss of information , the twisted pair, addition of noise to the signal, depends on the signal frequency, the high-frequency components of the signal, over, between, through, of, with, including.(3) for, to, In some cases, over, (microwave relay, coaxial cable, or fiber), ADC, to, thereby achieving a reduction in required channel bandwidth, of, signal recovery, (Techniques such as filtering, auto-correlation and convolution).2. 英汉互译(1) “电信”(telecommunication)一词来源于希腊语tele(含义为“遥远的”)和拉丁语communicatio(涵义为“连接”)。

通信工程专业英语TEXT1信息的数字表示

通信工程专业英语TEXT1信息的数字表示

The key advantage of digital representation lies in the universality of representation. Since any medium, be it a text, an image, or a sound, is coded in a unique form which ultimately results in a sequence of bits, all kinds of information can be handled in the same way and by the same type of equipment.Furthermore, transformations of digital information are error free, while analog transformations introduce distortions and noise.1 StorageThe same digital data storage device can be used for all media. The only difference may lie in size requirement.Still images and motion video require larger volumes than text or graphics. Sound also is demanding though less so than imaging. Thus, appropriate digital devices may be required, such as compact disk-read-only memories (CD-ROMS). But the key point is that a single type of digital device may store all kinds of information.2. TransmissionAny data communication system capable of carrying bits has the potential to transmit any multimedia digital information. Thus, a single communication network supporting digital transmission can, in theory, be envisaged.This concept is referred to as an integrated services digital network (ISDN), which is a facility aimed at integrating the transport of all information media.The difficulties may arise from the requirements of certain applications, in particular those which need to respect with fidelity(忠实、保真度)the time-dependency of digital signals.Even when the potential for integrating different types of information on a single communication system is not exploited, the benefits of digital versus analog transmission are numerous. First, digital signals are less sensitive to transmission noise than analog signals. Second, the regeneration of the signal--which is the process by which an attenuated signal is strengthened -- is easier. Third, error detection and correction can be implemented. Fourth, the encrypting of the information is also easier.3. ProcessingAs all information is stored on computers, it can be processes, analyzed, modified, altered, or complemented by computer programs like any other data. This is probably where the potential is the highest.•An attempt may be made to recognize semantic contents (speech, handwriting, form, and pattern recognition). An example of advanced contents recognition is the detection of cuts in motion video to automatically identify and index video sequences.•Data structures, chaining using pointers between information elements, may be created for faster and flexible retrieval(检索).•Powerful editing by cut-and-paste functions to create monomedia (e.g. sound only) or multimedia documents is possible.•The quality of information may be improved by the removal(移除)of noise or errors as shown by the digitization of old vinyl records to create higher-quality audio compact disks.•Information of a similar type but created through different processes---such as motion imaging synthesized by computers and camera-captured video--- may be mixed.•To summarize:•Digital representation permits the storage of different information types on the same device. Information may also be transmitted over a single digital network.Likewise, when digitized, all forms of information may be treated by computer programs, for editing, quality improvement, or recognition of the meaning of the information.4. Drawback (缺点,不足)of Digital Representation of Continuous InformationThe major drawback of the digital representation of information lies in coding distortion. The process of first sampling and then quantizing and coding the sampled values introduces distortions. As a result, the signal generated after digital-to-analog conversion and presented to the end-user has little chance of being completely identical to the original signal.Increasing the sampling rate and multiplying the number of bits used to code samples reduces the distortion. The result is an increased number of bits per time or space unit, called bit rate, necessary to represent the information. There are clearly technological limits to the explosion of bit rates: storage capacity is not infinite, and transmission systems also have limited bandwidths.One of the key issues then is to choose an appropriate balance between the accuracy of the digitization, which determines the bit rate, and the perceived(感知,觉察)distortions by users. Do not forget that it is how distortions are perceived by humans which matters, not what they are physically.Another consequence, as mentioned before, is the need for a large digital storage capacity for moving or still images and, to a lesser extent, for sound. Eight minutes of stereophonic CD sound are enough to completely fill(装满)the 80 megabyte hard disk of a standard personal computer.Fortunately, compression algorithms have been developed to alleviate(缓和,减轻)these requirements. But only spectacular recent progress in digital storage capacity and cost has enabled the development of massive digital storage of media such as images, sound, and motion video.Let us summarize:The digitization process introduces a distortion of the information. Reducing this distortion may be achieved by increasing the sampling rate and the number of bits to code each sample. Images, sound, and motion video require a large amount of digital storage capacity.。

专业英语复习卷1及答案.doc

专业英语复习卷1及答案.doc

《专业英语》复习卷1使用班级:电信糸一.Vocabulary(词汇)(一)Put the following words and phrases into Chinese.(写出下列词组的汉语)1 ・ semiconductor devices2.eletric field3.polarity switchyout design5.reverse biasedbinational logic7.machine-language code& cable TV programs9. fiber optic1 ()・spectrum efficiency(二)Put the following words and phrases into English.(写出下列词组的英语). U 1.调频熬 2.感抗'. 3.双极型晶体管4.电子与空穴5.低功耗6.十进制数字系统7.软件开发人员8.阴极射线管9.帧屮继10.国际漫游能力二.Translation (翻译)1 ・ Resistors are used to limit current flowing to a device, thereby preventing it from burning out, asvoltage dividers to reduce voltage for other circuits, as transistor biasing circuits, and to serve as circuit loads.2. A multimeter is a general-purpose meter capable of measuring de and ac voltage, current,resistance, and in some cases, decibels.3・The transformer's job is to reduce the 7200 volts down to 240 volts that make up normal household electrical service.4. The router basically reads the destination address on the packets being sent by your computer andthen forwards the packet to the appropriate destination.5・ Adjust the quality of your scanned image before you actually start editing the image in your image editing software.三.Comprehension(阅读理解)Passage AA computer virus is a computer program that is created to make and spread copies of itself. The program may however also be designed to have other effects on the systems it infects, ranging from the annoying to the disastrous.Virus attacks are growing rapidly these days・ According to BusinessWeek, the 76,404 attacks reported in the first half of 2003 nearly match previous year's total number. As new antivirus tools are more powerful than before, the virus writers are getting a lot smarter with newer and creative ways to attack network systems. Let's first examine some common virus types: Basic Virus - a piece of software code that is developed to attack computers and network systems via email or Internet connections. It quickly replicates itself andgradually attaches to files, programs or the hard drive.Trojan Horses - This is a program that doesn't replicate when entering a system but can be effectively used to open 'back doors.1 Trojan Horses allow hackers to take controlover a particular system or to steal very important data.Worm ・ this type of virus is able to spread itself automatically over the network from one computer to the next. During a worm attack, users1 computers get infected withouteven having to click open email attachment or any program, etc.Since it is very difficult to avoid the virus, your best defense is a powerful antivirus program. In order to fight with such viruses, the software vendors should focus on makingtheir products more robust. This may ask for a trade-off between user-friendliness andsecurity. In specific cases it may require line-by-line inspection, code retooling and evensystems automation to defend the installed programs.(一choose the best answer according to the passage A•(根据上文的内容选择正确的答案。

信息与通信工程专业英语,试卷及答案

信息与通信工程专业英语,试卷及答案

装订线装订线学院:姓名:研究生课程期末考试试卷《信息与通信工程专业英语》学年度第专业:学号:学期信息与通信工程(1)Integrated circuit集成电路(2)Individual electrons单个电子(3)Bandwidth频带宽度(4)Conductor length导体长度(5)Vector向量(6)Interface界面(7)Signal frequency信号频率(8)Voltage电压(9)Integral form积分形式(10)T ensor张量第一题、通信工程专业英语常用词组翻译。

(每小题1.5分,共30分)1.将下列英文词组翻译为汉语。

2.将下列汉语词组翻译为英语。

(1)模拟器simulator(2)传导率conductivity(3)模式识别pattern recognition(4)种类category(5)数字技术digital techniques(6)语音识别speech recognition(7)磁共振magnetic resonance(8)虚拟现实virtual reality(9)放大器amplifier(10)信息技术information technology第二题、英文和汉语词组正确搭(每小组1分,共10分)(a)Modulation sidebands数据信道—f(b)I ntermediate frequency中频—b(c)Analog system有监督学习—e(d)F eedback network载波信道.j(e)Supervised learning模拟系统—c(f)Data channel反馈网络—d(g)Adaptive learning数字信号处理_h(h)D igital signal processing调制边带—a⑴Negative feedback自适应学习—g⑴Bearer channel负反馈_i得分第三题、将下面几段文字翻译为汉语。

通信与信息工程专业英语教程参考答案(Communication English)概要

通信与信息工程专业英语教程参考答案(Communication English)概要

参考答案( Communication English )第一章电子通信导论1.将表1-1译成中文。

表1-1 通信大事纪年代事件公元前3000年埃及人发明象形文字公元800年借鉴印度, 阿拉伯人使用我们的现行数制1440年约翰.戈登贝尔发明可移动的金属记录带1752年贝莱明.富兰克林的风筝证明了雷闪是电1827年欧姆发表欧姆定律( I = E / R)1834年 C.F.高斯和E.H.韦伯发明电磁电报1838年W.F.库克和C.维特斯通发明电报1844年S.F.B.莫尔斯演示巴尔的摩和华盛顿的电报线路1850年G.R.基尔赫夫发表基尔赫夫电路定律1858年铺设第一条越洋电缆, 并于26天后举办博览会1864年J.C.麦克斯威尔预言电磁辐射1871年电报工程师协会在伦敦成立1876年 A.G.贝尔发明电话并获专利1883年 A.爱迪生发现真空管中的电子流1884年美国电气工程师协会(AIEE)成立1887年H.赫兹证明麦克斯威的理论1900年G.马可尼传送第一个越洋无线电信号1905年R.芬森登利用无线电传送语音和音乐1906年L.弗雷斯特真空三极管放大器1915年贝尔系统完成美国大陆电话线路1918年 E.H.阿尔莫斯通发明超外差接收机电路1920年第一个定时无线广播J.R.卡尔松将取样用于广播1926年美国演示电视1927年H.布兰克在贝尔实验室发明负反馈放大器1931年电传打字机投入运营1933年 E.H.阿尔莫斯通发明调频1935年R.A.沃特森-瓦特发明第一个实用雷达1936年英国广播公司(BBC)开办第一个电视广播1937年 A.雷弗斯提出脉冲编码调制(PCM)1941年J.V.阿当拉索夫在依俄华州立大学发明计算机1945年ENIAC电子数字计算机研发于宾夕伐尼亚大学1947年布雷登、巴登和肖克利在贝尔实验室研制晶体管S.O.莱斯在贝尔实验室研究噪声的统计表征1948年 C.E.香农发表他的信息理论1950年时分多路用于电话1953年美国提出NTSC彩色电视1957年苏联发射第一个地球卫星Sputnik I1958年 A.L.肖洛和C.H.托莱斯发表激光原理仙童公司的R.诺依斯生第一硅集成电路1961年美国开始立体声调频广播1962年第一个有源卫星, Telstar I , 实现美国与欧洲的电视中继1963年贝尔系统推出按键式电话电气与电子工程师协会(IEEE)成立1963~66年研究纠错码和自适应均衡1964年电子电话交换系统(No.1ESS)投入运营1965年笫一个商用通信卫星,Early Bird,发射1968年开发电缆电视系统1971年Intel公司研制第一个单片微处理器—40041972年摩托罗拉向美国联邦通信委员会(FCC)演示蜂窝式电话1976年推出个人计算机1979年64-kb随机存取存储器标志着进入VLSI时代1980年贝尔系统研发FT3光纤通信, Philips和Sony研发光碟(CD) 1984年苹果公司研发Macintosh计算机1985年传真机普及1989年摩托罗拉推出袖珍移动电话1990~现在用微处理器进行数字信号处理的时代, 数字示波器, 数字调谐接收机, 扩频系统, ISDN, HDTV, 数字卫星系统2.将表1-2译成中文。

通信专业英语考试习题

通信专业英语考试习题

通信专业英语考试习题一、汉译英用户,订购者Subscriber短消息服务SMS信号干扰Signal—jamming天线Antenna移动电话Mobile telephone覆盖率penetration rate预付费业务Pay-as-you-go充电recharge锂离子电池Lithium-ion battery摄像机Camcorder红外连接Infrared connectivity蓝牙连接Bluetooth connectivity个人电脑PC打出的电话Outbound call打入的电话Incoming call主叫方付费Calling Party Pays被叫方付费Receiving Party Pays点对点技术P2P因特网声传协议VoIP通用分组无线服务 GPRS全球移动通信系统GSM主干网Backbone文件分享系统File sharing system重新设置reconfigure视频点播系统video demand service二、填空1、W-CDMA is usually seen as the natural evolution path forGSM and TDMA networks.2、Various network standards may be used in Mobile Broadband, such as GPRS, 3G, WiMAX, UMTS/HSPA, EV-DO and some portable satellite-based systems.2、GPRS 服务is a Mobile Data Service available to users of Global System for MobileCommunications (GSM 系统) and IS-136 mobile phones. It provides data rates from 56 up to 114Kbps4、The most common types of telephone cards are Prepaid cards, Pin cards, Stored-valuecards.5、Trunk telecommunication is a complex type of computer-controlled radio system. ituses a few channels (the actual frequencies), and can have virtually unlimited talkgroups.The control channel computer sends packets of data to enable one talkgroup to talk together, regardless of frequency.6、Broadband Internet Access, shorten to just “broadband”, is high speed Internetaccess—typically contrasted with dial-up access over modem.7、Wi-Fi allows local area networks (LANs) to be deployed部署without cabling forclient devices, typically reducing the costs of network deployment and expansion.8、Wireless network adapters 网卡are now built into most laptops. The price ofchipsets for Wi-Fi continues to drop, making it an economical networking option included in even more devices. Wi-Fi has become widespread in corporate infrastructures.9、The “trunk-line” is time-shared Radio communication over a trunked system issimilar to such telephone system. Trunking a multi-channel radio system increases the efficiency of the radio system by dynamically managing the use of a radio channel.三、简答1、What are major technical standards for the current generation of mobile phone?GSM,CDMA,TDMA,iDEN in the USA,PDC in Japan2、What are major standards for the next generation 3G (IMT2000) phones andnetworks?CDMA-2000 1x RTT,W-CDMA,TD—SCDMA3、How many systems of payment for mobile phones?2 ,one is pay as you go. Another contract based payment3、How many accesses of obtaining Mobile phone power ? What are they?Main power,a USB port,a cigarette lighter socket in a car4、How many types of Mobile phone batteries?3,Nickel mental-hydribe,Lithium-ion,lLthium-Polymer,solar cells5、How to prevent hackers entering your computer?3,Patch up “holes”in the security;use software to control a ccess to the “outside world”;to invset in some decent anti-virus software and to keep this up to date6、What is restrict or limit in mobile broadband?Large data exchanges,P2P file sharing,VoIP,automated feeds四、翻译句子1、All European, African and many Asian countries have adopted a singlesystem—GSM.欧洲,非洲和许多亚洲国家都采用了单一制式的GSM网络。

专业英语09-10A卷

专业英语09-10A卷

浙江科技学院 2009 -2010 学年第 一学期考试试卷 A 卷 考试科目 专业英语 考试方式 开卷 完成时限 2小时 拟题人 审核人 批准人 09 年 12月 1 日 理学 院 07 年级 信息与计算 专业1. Translate the following terms or phrases from English into Chinese and vice verse.(每题1分,共30分) 1) 基本输入/输出系统 2) volatile memory 3) 人工智能 4) parallel computing 5) 系统规格说明 6) interpreted language 7) 需求分析与定义 8) software maintenance tool 9) 关系数据库模型 10) distributed database 11) 数字用户线路 12) hierarchical database mode l 13) 模拟传输 14) cellular telephone 15) 总线拓扑网络 16) carrier sense 17) 进程间通信 18) wide area network (WAN) 19) 主机地址 20) mnemonic name 21) 信息高速公路 22) Internet service provider (ISP) 23) 个人数字助理 24) digital piracy 业班学姓…………………………………………………………………装订线……………………………………………………………………………………25) 定制的营销策略26) C2C transaction27)视网膜扫描仪28) intellectual property29)计算机病毒30) electronic break-in2. Fill in the blanks with the best answer.(每题1分,共10分)1) The ( ) is a microcomputer with enhanced graphics and communications capabilities that make it especially useful for office work..A. microcomputerB. workstationC. minicomputerD. mainframe2) A(n) ( ) use refected light, the amount of which determines whether the area represents a 1 or a 0..A. floppy diskB. hard diskC. CD-ROM diskD. CD-ROM disc3) A(n) ( ) language is a language in binary code that a computer can understand and execute directly.A. intermediateB. high-levelC. machineD. assembly4) A(n) ( ) is a program that is often used to help find problems in other programs.A. debuggerB. compilerC. interpreterD.assembler5) The ( ) refers to the actual program that allows users to access, maintain, and update data.A. softwareB. hardwareC. dataD. procedures6) A(n) ( ) is a device that converts between analog and digital signals, making it possible for a computer to transmit information over a standard telephone line.A. screenB. modemC. printerD.keyboard7) The computers on a university campus or those in a manufacturing plant might be connected by a(n) ( ).A. LANB. MANC. WAND.Internet8) A(n) ( ) is a company that provides Internet access and other services to customers.A. ICANNB. ISPC. DSLD. DARPA9) Transactions conducted between businesses on the Web is often called ( ) .A. B2CB. B2GC. B2BD. C2C10) ( ) are people who gain unauthorized access to a computer system for the fun and challenge of it.A. HackersB. CrackersC. tellersD. administrators3. Translate the following sentences or paragraphs into Chinese.(前四题每题5分,第五题7分,第六题8分,共35分)1) A modem converts the digital signals of the sending computer to analog signals that can be transmitted through telephone lines. When the signal reaches its destination, another modem reconstructs the original digital signal, which is processed by the receiving computer.2) Software processes are complex and, like all intellectual and creative processes, rely on people making decisions and judgments. Because of the need for judgment and creativity, attempts to automate software processes have met with limited success.3) In conducting searches, a relational database matches information from a field in one table with information in a corresponding field of another table to produce a third table that combines requested data from both tables.4) Some computers connect directly to the digital portion of the telephone network using the Integrated Services Digital Network (ISDN) or Digital Subscriber Lines (DSL), but this requires special equipment at user locations.5) A network can involve permanent connections, such as cables, or temporary connections made through telephone or other communications links. A network can be as small as a local area network consisting of a few computers, printers, and other devices, or it can consist of many small and large computers distributed over a vast geographic area. Small or large, a computer network exists to provide computer users with the means of communicating and transferring information electronically. Some types of communication are simple user-to-user messages; others, of the type known as distributed processes, can involve several computers and the sharing of workloads or cooperative efforts in performing a task.6) Most major corporations today use special hardware and software called firewalls to control access to their internal computer networks. These firewalls act as a security buffer between the corporation’s private network and all external networks, including the Internet. All electronic communications coming into and leaving the corporation must be evaluated by the firewall. Security is maintained by denying access to unauthorized communications.4.Please write a short paper on the most interesting parts you think about the computer knowledge or technology.(Not less than 200 words)(共25分)1)In your paper, the whole structure of the scientific paper must be indicated.(Title, abstract, keywords, text, reference)2) Pay attention to the Syntax and the Grammar.3)You may get the description in the books, please try your best to use your own words.。

09年英语专业知识真题答案(1)

09年英语专业知识真题答案(1)

机密★启用前C122009年福建省高职高专升本科入学考试英语专业知识答案第一部英语写作与翻译(共150分)Ⅰ.Writing (100 points)Section A Note-writing (30 points)评分标准30-26 格式正确,表达得体,完成所有要求,语法正确,有很少的拼写错误。

25-21 格式基本正确,表达较得体,基本完成要求,有一些语法、拼写错误。

20-16 格式不正确,语言表达不够得体,没有完成要求,有较多的语法、拼写错误。

15-11 格式不正确,语言表达不够得体,没有完成要求,有很多的语法、拼写错误。

评分标准70-60 内容切题,中心突出,结构完整,条理清晰,语言通顺,有恰当的衔接过渡,语法正确,有很少的拼写错误。

59-50 内容基本切题、中心较突出,结构完整,条理较清晰,语言较通顺,有一定的衔接过渡,有少量的语法、拼写错误。

49-40 文章有一定的中心,但有些句子不切题,结构不够完整,有很少的衔接过渡,有较多的语法、拼写错误。

39-30 内容基本不切题,结构不完整,语言不通顺,有很多的语法、拼写错误。

Section C Translate these sentences into English(20 points,4 for each)1.2.His heart attack is a warning to him not to overwork himself any longer.3.They have failed to invest injob creation, for which they have got much criticism.4.5.As a matter of fact, children follow advice, but they follow examples even better. Trust and encouragement will have a better effect on them than endless advice and severe punishment. Section D Translate these sentences into Chinese (30 points,6 for each) 1.使我们对自身的态度更具清醒的认识,增强对跨文化差异的敏感度,这样才可能避免这类文化冲突。

大学专业试卷 大学二年级 英语翻译 专业试卷B卷含答案

大学专业试卷 大学二年级 英语翻译 专业试卷B卷含答案

《专业英语》试卷B适用专业:考试日期:考试时间:120分钟考试形式:闭卷试卷总分:100分一、填空(18分)1.The four strokes of a four-stroke engine are: 、、、。

2.The lubrication system has fours functions, they are: 、、、。

3. TDC is the abbreviation(缩写) for ,ABS is the abbreviation for。

4.An valve which allows the fresh charge of fuel/air into the combustion chamber。

5.An valve which allows the spent gases to escape to the atmosphere via the exhaust system。

6.Generally, an engine consists of two mechanisms and five systems. They are 、、、、、and the lubrication system。

二、英译汉(共82分)The automobiles now running on streets are so various in style and design that you can hardly imagine what the automobiles looked like one hundred years ago. With the development of auto industry, automobiles have been changed greatly and remodeled from time to time. But, however different the auto models, automobiles are basically the same in structure. In other words, any automobile is composed of four sections such as engine, chassis, body and electrical system..The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine: gasoline (also called a spark-ignition engine) and diesel(also called a compression-ignition engine).Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the transmission。

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琼州学院 09通信工程专业《专业英语》试卷 2011 ——2012学年度第 1 学期期末考试(C )卷答案 注意事项: 1、考前请将密封线内填写清楚 2、所有答案请直接答在试卷上(或答题纸上) 3、考试形式:(闭)卷 4、本试卷共 大题,满分100分。

考试时间120分钟 5 一、科技常用词组翻译(本题共20 小题,每小题 1.5 分,共 30 分) 1、英翻中 (1)coaxial cable 同轴电缆 (2)router 路由器 (3)hub 集线器 (4)destination address 目的地址 (5)datagram 数据报 (6)amplify 放大 (7)medium 媒介 (8)information 信息 (9)system file 系统文件 (10)library file 库文件 2、中翻英 (1)微处理器 microprocessor (2)芯片 chip (3)电子商务 E-commerce (4)适配器 adapter (5)调制解调器 modem (6)中国电信 China Telecom (7)数字业务 digital service (8)虚拟现实 virtual reality (9)分组交换网 packet-switching network (10)设备控制器device controller 二、英、中词组正确搭配(每组 1 分,共 10 分) 班

姓名






线
1.Bearer channel 数据信道5.
2.Terminal Adapter 处理信号4.
3.analog system 用户设备6.
4.handle signaling 载波信道1.
5.data channel 模拟系统3.
6.customer equipment 终端适配器2.
7.service type 端到端数字连接10.
8.Integrated Services Digital Network 数字交换系统 9.
9.digital switching system 综合业务数字网8.
10.end-to-end digital connectivity 业务类型7.
三、把下面句子翻译成中文(本题共 5 小
题,每题 4 分,共 20 分)
1、Keep in mind that size of the software you plan to run
will dicate how much memory your computer should have.
你要运行的软件大小将决定计算机需要多少内存,这一点需要记住.
2.The system unit is a box-like case made of metal or
plastic.
系统单元是金属或塑料制成的象盒般的箱子.
puters are good for storing and manipulating both
structured and unstructured data.
计算机有助于存储和处理结构化数据和非结构化数据.
4.Data is a collection of un_organized facts.
数据是无组织的事实的集合.
5.A network protocol is a set of rule for communicating
between computers.
网络协议是计算机之间进行通信的一套规则.
四、选择填空(本题共 4 小题,每题 5 分,
共 20 分)
1.Which of the following is an “output device?”( )
A.CD ROM
B.Microphone
C.Printer
D.All the above
2.A computer calculate using the ( ) system.
A.fast
B.trianary
C.hexadecimal
D.binary
3.Internet is simply what? ( )
A.The WWW
B.A worldwide system of computer networks
C.A modem
D. An ISP or Internet Service Provider
4.The software used to control the computer and run
programs.( )
A.application
B.systew software
C.games
D.virus
5.A special sequence of number or letters that limits access
to eletronic mail boxes:( )
A.Authentication
B.code
C.Encryption
D.Password
五、阅读填空(本题共 5 空,每空 4 分,
共 20 分)
Upgrade a computer
You can Upgrade a computer to enhance it’s 1 ..
For many upgrades,you will need the assistance of an
experienced computer 2 erson.Upgrading usually
refer to replacing an old or obsolete computer with a newer
one to improve the efficiency of the computer.Upgrading can
also include adding a new 3 ,such as a tape drive
or DVD-ROM drive,to increse the capabilities of the computer.
You should always determine the cost of an upgrade before
performing it.If you are planning a major upgrade,such as 4 the system board or CPU ,it may be less expensive to purchase a new computer.
Increasing the 5 of memory in a computer is one of the most effetive upgrade you can perform.Doubling the existing memory in a computer can significantly increase its performance.
1.A.cost B.height C.performance D.experience
2.A.repair B.check C.administer D.keep
3.A.member B.tape C.drive ponent
4.A.replace B.replacing C.to replace D.replaced
5.A.amount B.cost C.speed D.quality。

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