2014电子技术专业英语期末试题B卷LEO
电子信息技术专业英语试题卷
2013～2014学年第一学期1106-1107班《电子信息技术专业英语》试卷（考试时间90分钟）一、单词翻译（20%）1. switch 11. component2. device 12. circuit3. instruction 13. resistor4. junction 14. capacitor5. combination 15. diode6. manufacture 16. transistor7. structure 17. current8. principle 18. voltage9. wafer 19. amplifier 10. analog20. insulator二、词组互译（20%） 1. 广泛应用于 11. electronic circuit 2. 把…. 分成…… 12. variable resistor 3. 打算…… 13. direct currents 4. 根据…… 14. integrated circuit 5. 将…..应用于 15. forward bias 6. 提到、指 16. N-type material 7.由……组成 17. electronic counter 8. 用做…… 18. frequency synthesizer 9. 被称做…… 19. digital instrument 10. 形成 20. operational amplifier三、判断正误，用“T ”或“F ” 表示(10%)1. The conductivity of semiconductors is higher than that of insulators But lower than that of conductors. ( )2. Silicon materials can conduct electricity when they are in purestate. ( )3. A semiconductor of n-type means that the pure material have been added impurities with three outer electrons. ( )班级 学号 姓名4. It is called forward bias if a diode is connected to an external voltage to make the p-type region positive and the n-type region negative. ( )5. An n-type and a p-type material created side by side can form a p-n junction. ( )四、回答问题（15%）1. What component can restrict the flow of electrons?2. What component can be used to change AC into DC?3. What component can amplify small signal?4. Material can be divided into three types, what are they?5. What function can integrated circuits perform?五、句子翻译（20%）1. The transistor acts as a switch.2. Diodes conduct electricity in only one direction.3. Digital ICs can be used in computers.4. ICs have a small size and low cost and therefore they are widely used in different fields.5. Substance can be divided into three types: conductors, semiconductors andinsulators.六、段落翻译（15%）An integrated circuit look like nothing more than a tiny chip of metal, perhaps one-half of a centimeter on a side, and not much thicker than a sheet of paper. It is so small that if it fell on the floor, it could be easily swept up with the dust. Although it is very small, it represents the most highly skilled technology at every step of its manufacture. At today’s level of development, it might comprise more than ten thousand separate electronic elements including elements of many different functions, such as diodes, transistors, capacitors and resistors.2013～2014学年第一学期1106-1107班《电子信息技术专业英语》补考答题卷（考试时间90分钟）一、单词翻译（20%）11. ________________________4. _________________________ 14. _________________________6 ._________________________7 ._________________________ 8. _________________________ 9 ._________________________二、词组互译（20%）11. ________________________4. _________________________ 14. ________________________6 ._________________________7 ._________________________ 8. _________________________ 9 ._________________________三、判断正误，用“T ”或“F ” 表示(10%) (10%)。
电大2014年大学英语B光盘练习试题
电大2014年大学英语B光盘练习试题一、交际英语二、阅读理解What makes a person a scientist?1-1 What makes a scientist according to the passage? B The way he uses his tools.1-2 The underlined part in the passage shows the difference between scientists and ordinary people. C1-3 A sound scientific theory should be one that works not only under one set of conditions at one time, but also under theA1-4 The author quotes the case of Albert Einstein to illustrate that investigations are important in science. C1-5 What is the main idea of the passage? D Exactness and ways of using tools are the keys to the making of a scientist.In the United States, it is not customary to telephone someone very early in the morning.2-1 What is the main idea of this passage? B The role of time in social life over the world.2-2 What does it mean in the passage if you call someone during his or her sleeping hours? B A matter of life or death2-3 Which of the following time is proper if you want to make an appointment with your friend in the U.S.A.? at 4:00 pmB2-4 Which of the following statements is true according to the passage? Promptness is valued highly in American life D2-5 From the passage we can safely infer that the meaning of time differs in different parts of the world. BThere are three kinds of goals: short-term, medium-range and long-term goals.3-1 Our long-term goals mean a lot if we complete the short-term goals. B3-2 New short-term goals are built upon the goals that have been completed. D3-3 When we complete each step of our goals, we will build up our confidence to achieve success. C3-4 What is the main idea of this passage? Different kinds of goals in life. C3-5 Which of the following statements is wrong according to the passage? Life is a static thing, thus never allowing a long-term CMorgan Rees has always been a good businessman.4-1 The topic sentence of Para. 1 is Morgan Rees has always been a good businessman. A4-2 The topic sentence of Para. 2 is he was unhappy after he got retired. C4-3 Which of the following statements can best express the main idea of Para. 3? He bought a small crockery factory in secret B 4-4 what is the central idea of the last paragraph? Since he started working again, Morgan Rees has expanded the company D 4-5 The passage mainly deals with how Morgan Rees lived his retired life more happily by turning to work again. BOnce James Thomhill, a famous English painter, was asked to paint some pictures on the walls of the king’s palace in England.5-1 James Thomhill was an English artist. B5-2 He was ordered to paint some pictures on the wall of the palace. B5-3 It took them twelve months to finish the pictures. C5-4 James Thomhill felt that the farther he was from the pictures, the more beautiful they were. C5-5 The worker threw some paint at the pictures in order to save James’ life. AShyness is the cause of much unhappiness for a great many people.6-1 Wha t does the author try to prove by citing “what kind of impression am I making?”(Para. 1)B People’s shyness make them care 6-2 According to the writer, self-awareness is a good quality. A6-3 That shy people react to a compliment in such a way is harmful. D6-4 Which of the following statements is true, according to the passage? Shyness can block our chances for a rich life. C6-5 It can be inferred from the passage that shy people should understand themselves in the right way. BThe residents of 24 Acacia Grove were dissatisfied with the condition of the property, so John Preston called a meeting to7-1 Why did John Preston call a meeting last week? Because the residents were dissatisfied with the bad management of the7-2 Who elected John as Chairman of the committee? The residents. B7-3 What does the word “inactivity” mean in the third sentence in Para. 1? Lack of actions D7-4 What does the word “due” mean in the first sentence of Para. 2? To be paid A7-5 When did they agree to pay the next service payment? When they were happy with the plans to improve the property. CWhen I was a little girl, my brothers and I collected stamps for many years.8-1 This passage mainly tells us the author and her brothers had an unforgettable experience in collecting stamps. C8-2 According to the passage, her mother worked in the post office on Saturdays. B8-3 Their mother told them to go to the post office straightaway after the match if England won, but she didn’t tell t hem why. Why do you think she did that? She wanted to give them a surprise. A8-4 What does the sentence “We were over the moon.” Mean? We were extremely happy about it. B8-5 What is the best title for this passage? A Memorable Experience in Collecting Stamps. DToday Newton is a very clean place. Many year ago, however,9-1 Newton is a place which is very clean. C9-2 When the Government first ordered the people to kill rats, the people were too lazy to kill many rats. C9-3 The people killed rats to get money from the Government. A9-4 A deep hole was dug so that nobody could take any rats from the pile. D9-5 What is the best topic for this passage? How Newton Became a Very Clean Place. CMany people who work in London prefer to live outside it, and to go in to their offices or schools every day by train, car10-1 Which of the following statements is NOT true? People who work in London prefer to live in the country. B10-2 With the same money renting a small flat without a garden, one can buy a little house with a garden in the country. C10-3 When the garden is in blossom, it means that one having spent time working in the garden has been rewarded. B10-4 People who think happiness lies in the town would feel that their life was meaningless if they had to live outside London. A 10-5 The underlined phrase get away from in the 3rd paragraph refers to escape from. COne day a bookseller let a big box of books fall on his foot.11-1 What happened to the bookseller one day? His foot was wounded by a box of books. B11-2 The bookseller’s wife asked him to go to see the doctor. C11-3 The bookseller didn’t take his wife’s advice because he didn’t want to pay the doctor. D11-4 The doctor paid nothing for the books. C11-5 The bookseller paid more money for seeing the doctor in the end. AHow men first learnt to invent words is unknown; in other words, the origin of language is a mystery.12-1 The origin of language is a problem not yet solved. D12-2 What is true about words? They are simple sounds. C12-3 The real power of words consists in their representative function. D12-4 By “association” in the last paragraph, the author means a joining of ideas in the mind. B12-5 Which of the following statements about the real poet is NOT true? He is no more than a master of words. AMr. Tom Forester lived by himself a long way from town.13-1 Mr. Forester lived alone in the countryside. D13-2 Tom almost never went into town. C13-3 The old people in the restaurant read their newspapers with glasses on. A13-4 The shop Tom went into sold glasses for people who could not see well. D13-5 What kind of mistake did Tom make? He thought that a person who had not learned to read would be able to do so if he A characteristic of American culture that has become almost a tradition is to respect the self-made man14-1 From Para. 1, we know that in America people tend to have a high opinion of the self-made man. A14-2 According to the passage, the hostess cooks dinner herself mainly because she takes pride in what she can do herself. B 14-3 The underlined expression “wait on table” in Para. 2 means “serve customers in a restaurant”. D14-4 The author’s attitude towards manual labor is positive. A14-5 Which of the following could be the best title of the passage? American attitude toward Manual Labor. BWhen John and Victoria Falls arrived in New York City for one-year stay, they did not bring very many things with them.15-1 Which of the following has become one of America’s fastest growing businesses? Renting home furnishings D15-2 Why do some people prefer to rent furniture? Because it saves them much trouble and money. C15-3 What can you infer from the passage? Renting furniture is not popular in the couple’s home town. B15-4 Which of the following can best serve as the title of the passage? A New Way of Getting Home Furnishings. B15-5 Young people liked renting home furniture because they don’t have much money and don’t want to buy the cheap fu DMartin Luther king was a black minister, who became a great leader of the civil rights movement in the 1950s and 1960s.16-1 Martin Luther king was murdered when he was 39 years old. 选A：T16-2 Martin Luther king was a black minister only. 选B：F16-3 Martin Luther king’s Day has been a federal holiday for more than 40 years. 选A：T16-4 The underlined word “delivered” in the second paragraph could be replaced by “gave”. 选A：T16-5 The best title for this passage is “Civil Rights Law”. 选B：FThe French Revolution broke out in 1789.17-1 This passage is about the Ferench Revolution. 选A：T17-2 The national economy was developing rapidly in 1789. 选B：F17-3 The political prisoners were kept in Prussia. 选B：F17-4 The underlined word “abolished” mean “ended”. 选A：T17-5 The effect of the Revolution was that the King tried to control the national parliament. 选B：FIn choosing a friend, one should be very careful.18-1 The writer thinks that one of the important qualities in choosing a friend is understanding. 选A：T18-2 If you have fair weather friends, you will be lucky. 选B：F18-3 Good friends need to understand each other’s feelings. 选A：T18-4 This passage is mainly discussing the qualities of a friend. 选A:T18-5 The meaning of the phrase “a fair weather friend” underlined in the 1st paragraph is a friend who shares difficulties 选B：FNo one is glad to hear that his body has to be cut open by a surgeon and part of it taken out.19-1 It is not long since a man felt all the pain while being operated. 选A：T19-2 Long ago, when the sick man was operated on, he could feel nothing. 选B：F19-3 Using the laughing gas, the people seemed to feel pain during the operation. 选B：F19-4 If a man took less laughing gas than he should have when an operation went on, he still felt pain. 选A：T19-5 one who took too much of the laughing gas would die. 选A：TThere was once an ant that was very thirsty.20-1 The ant was playing when it ran here and there. 选B：F20-2 The drop of water fell on the ant when it was nearly dying. 选A：T20-3 The young girl was crying because she wanted to have supper. 选B：F20-4 The giant would eat the girl if she failed to do the work. 选A：T20-5 The ant’s friends saved the girl’s life. 选A：TA foreigner’s first impression of the U.S. is likely to be that everyone is in a rush – often under pressure.21-1 The statement that Americans are impolite to their business colleagues is wrong. 选A：T21-2 In the fourth paragraph, “a high priority” means “a first concern”. 选A：T21-3 Americans evaluate a business colleague by establishing business relations. 选B：F21-4 This passage mainly talks about how Americans do business with foreigners. 选B：F21-5 We can infer from the passage that the author’s tone in writing is praiseful. 选A：TSixteen-year-old Maria was waiting in line at the airport in Santo Domingo.22-1 Maria’s story happened on her way back to Santo Domingo. 选B：F22-2 You believe that the work of the airline employee mentioned in the story is to check people’s luggage at the airport.选A：T 22-3 “Why are you so upset?” Maria said to the man. She wanted to tell him that he should not be unhappy and worried.选A：T 22-4 “Everyone was looking at him with disapproval.” This sentence means that the people around felt sorry for Maria’s .选B：F 22-5 The author mentioned Maria’s age at the beginning of the story in order to show that she was young but behaved 选A：T If you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers.23-1 The passage mainly tells us about the importance of taking care of plants. 选A：T23-2 Forests are homes for different kinds of animals. 选A：T23-3 The need for more wood and more land help to protect our forests. 选B：F23-4 We’ll have more and greater forests in 20 or 30 years in some people’s view. 选B：F23-5 The writer thinks it necessary to protect the forests. 选A：TMr. White lived in a small village.24-1 Mr. White was born in a farmer’s family. 选A：T24-2 Mr. White hoped to be respected because he was the richest man in their town. 选B：F24-3 The children often asked him to tell them something interesting because he knew more than any other person 选A：T24-4 All people believed Mr. White except the children. 选B：F24-5 Mr. White wouldn’t like to admit that he was wrong. 选A：TThere were once many sheiks who wanted to marry Queen Maura, for she was one of the most beautiful and powerful queens25-1 The queen was looking for a husband. 选A：T25-2 The queen disguised herself because she didn’t want to be recognized by the sheiks. 选A：T25-3 She gave the sheiks some stale food to eat the next evening. 选B：F25-4 Hakim wanted to eat his meal because it was very tasty. 选B：F25-5 The Queen finally decided to marry Hakim the next evening after the meal. 选A：T 三、词汇与语法四、选词填空“Mon, can I have some money?”1、home and job at the same time.2、mad at3、sit back4、to manage my money5、decision onIt’s very interesting to study of different countries.1、different from2、people put their3、So she should4、it are a two5、instead of justOne day a woman got into her car and started driving home after work.1、right, too.2、stopped behind her3、was wearing a4、to run away5、you dropped it onLast night, a fire broke out in Ann’s house in Manchester.1、was waken up2、She got up3、was far too heavy4、inside and tied5、the dog pulled FrankMany students find the experience of attending university lectures to be a confusing and frustrating experience.1、perhaps illustrating2、and which3、which enable4、to tackle the5、one way of overcomingMore and more teachers and parents have noticed another kind of pollution, which came from the printed papers sold on 1、badly made up 2、others are frightening 3、whoever they are 4、the more you want 5、The worried teachersIt is always interesting to visit another country, especially for those who have never traveled a great deal.1、Foreign travel can be2、but the benefits3、for the stranger to4、are not the heart5、a trip to another country Eagle has the longest life-span of its’ species.1、Eagle can live up2、make it difficult to3、beak against a rock4、thirty more years5、need to get rid ofMany people would agree that stress is a major problem in modern life.1、From backache to2、impose on us3、responsible for4、take on more work5、which things areModern zoos are very different from zoos that were built fifty years ago.1、where people2、made of concrete3、but natural4、are given more5、over the areasDid you sleep well last night?1、if you say2、you may get3、make sure that4、you had better5、so do exerciseMan has always wanted to fly.1、a pair of2、instead, he fell3、with hot air4、they arranged for5、but we do know五、英译汉1、As is known to all, China is the largest developing country in the world. 众所周知，中国是世界上最大的发展中国家。
材料1209,1210 2013-2014 学年 第二学期 《电子技术》期末试(A卷)参考答案
第 1 页 共 2 页电 机 学 院 试 卷2013 — 2014 学年第二学期期末考试答案《电子技术 》（A 卷）一、填空题（10题，每题2分，共20分）二、选择题（10题，每题2分，共20分）三、计算题（3题每题15分，共45分）21．逻 辑 电 路 如 图 所 示，写 出 逻 辑 式 ，画 出 逻 辑 图。
（15分）B≥1A FB(5分)F AB BC A B AB B C A B =+++=++++ (5分)A B C A B ABC A B A BC B A B =++++=++=++=+ (5分)--------------------------------------------------------------------------------------装 订 线------------------------------------------------------------------------------------22.已知主从J K触发器的C脉冲和J、K的波形如图所示。
试画出其输出Q 的波形（设Q的初始状态为“0”）。
（15分）CJKQ（15分）23. 电路如图所示，已知晶体管的β=60，rbek=1Ω，UBE=0.7 V，试求:（15分）(1) 静态工作点IB，IC，UCE；(2) 电压放大倍数；(3) 若输入电压u t miV=102s inω，则输出电压uo的有效值为多少?(1)IU URBCC BEBmA A=−=−=1207270419..µI IC BmA mA==×=β600041925..U U I RCE CC C CV V=−=−×=(.).1225345(2)A R ru=−=−=−βC be//6031180(3)U A Uuo imV V==×=1801018.第 2 页共2 页。
电子技术专业英语期末考试试卷
《电子技术专业英语》课程期末考试考试时间：100分钟，考核方式：笔试Part ІVocabulary and GrammarDirections：There are 20 incomplete sentences in this part.For each sentence there are four choices marked A,B,C and D.Choose the ONE answer that best completes the sentence.(20 points)( )1. -Where is Frank now?- He _______his bike in the yard.A.fixes upB. fixing upC. is fixing upD. fixed( )2. -You’ve left the light on, Tracy.-Oh, yes. _________ to turn it off right now.A. I’d goB. I’ve goneC. I’ll goD. I go( )3.“The World Without Thieves” is a very moving film. I ____ it twice already.A. will seeB. seeC. sawD. have seen( )4. The Oriental Pearl TV Tower ________ tens of thousands of visitors since l995.A. attractedB.attractsC. has attractedD.will attract( )5. -Did you see the traffic accident yesterday?-Yes. It happened when I past the museum.A. walkB. am walkingC. will walkD. was walking( )6. -Have you read this book?-Yes．I____ it two weeks ago．A．is reading B．have read C．will read D．read( )7.- What are you doing ,Jim?-I _________a beautiful horse.A. drawB. drewC. am drawingD. was drawing( )8. They______ all their money, so they have to walk home now.A. have spentB. spendC. spentD. are spending( )9. Jim is a student and ________in Town High School.A. studiesB. studiedC. had studiedD.study( )10.Sandy ________his old friend Tom when he was crossing the street.A. had metB. has metC. metD.meet( )11.A FET has three terminals: a souce,a drain and a ________.A.gateB.substractC.baseD.collector( )12.Transistor may be roughly grouped into two major divisions: ________ and field-effect. A.single B.polar C.bipolar D.collector( )13.In general,all material may be classified in three major catagories:conductors, ________and insulators.A.conductivityB.carbonC.diamondD.semiconductors( )14.A diode is an electrical device allowing current to move through it in ________ direction(s) with far greater ease than in the other.A one. B.two C.three D.four( )15.A diode may be thought of as a kind of switch:” ________” when forward-biased. Aopen. B. on C.closed D. off( )16.The BJT consists of ________region(s) of semiconductor material.A one. B.two C.three D.four( )17.VLSI is short form of “very large-scale________”.A.integratingB.integrationC.integrateD.integrator( )18.Bipolar transistors work as ________-controlled current regulators.A. currentB.voltageC.potentialD.drop( )19.Tomorrow we________ go for an outing unless it rains.A.willB.shallC.shouldD.would( )20.I ________ eighteen years old next year.A.am going toB.shall beC.should beD.would bePart ІІClozeDirections: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C, or D.(10 points)The United States is a confederation（联邦）of states. Each state has the (26) to make laws with regard to the state. (27) , based on public opinion, states can (28) policies regarding education, and they may (29) a state income tax; they also determine the speed (30) , housing codes, and the drinking age.In most parts of the United States, you (31) be 21 years old to buy alcohol in a liquor (液体，溶液)store, bar, (32) restaurant. In some states you may buy beer in a grocery （杂货，食品）store. If a store sells alcohol to a minor, the (33) of the store is usually (34) a large sum of money. (35) , many areas have an open-container law, (36) means that people may not drink alcohol on the street or in a car. Anyone (37) with an open container of alcohol may be arrested.(38) , with all of these laws, the (39) of alcohol is a serious (40) in the United States and Canada. Drinking on college campuses, (41) there are many underage drinkers has (42) greatly. In fact, alcohol sales have gone up (43) the legal drinking age was (44) from 18 to 21. Some people believe that if there were no legal drinking age, (45) in some other countries, North American youth would drink less.( )21.A privilege B advantage C right D tradition( )22.A As a result B For example C In other words D In this case( )23.A demand B disagree C discuss D determine( )24.A collect B issue C demand D implement( )25.A limit B control C stop D regulation( )26.A can B shall C will D must( )27.A and B or C also D not( )28.A clerk B salesperson C owner D host( )29.A fined B charged C punished D suffered( )30.A In addition B In fact C In reality D In general( )31.A that B this C it D which( )32.A exposed B suspected C caught D detected( )33. A nevertheless B Anyway C Moreover D Therefore( )34.A application B consumption C expenditure D usage( )35.A condition B crisis C question D problem( )36.A though B as C where D which( )37.A raised B increased C peaked D climaxed( )38.D climaxed B since C before D after( )39.A shifted B upgraded C uplifted D changed( )40.A same B for C as D likePart ШReading ComprehensionDirections: Read the following text. Answer the questions on each text by choosing A,B,C or D. (10 points)The ostrich（鸵鸟）, the largest bird in the world at present, lives in the drier regions of Africa outside the actual deserts. Because of its very long, powerful legs and the floating effect of its extended wings, it is able to run at great speed over considerable distances.The female（雌性的）ostrich normally produces about twenty eggs every rainy season. When the female ostrich begins to lay her eggs, however, she does not begin in her own nest（巢、窝）.Instead she goes off in search of the nests of neighboring females and lays two or three eggs in each of them. By the time she has laid eight or nine eggs, she returns and lays the rest in her own nest.Because of the size of the eggs, the female ostrich cannot lay more than one every two days, so it takes her three weeks to finish laying in her own nest. During that period, she spends a lot of time away from her nest looking for food. And while she is off her nest, other females visit it tolay their eggs amongst hers. By the time she is ready to sit on the eggs to hatch（孵化）them, there could be up to thirty eggs in her nest, over half of which are not her own.The female ostrich can comfortably cover only about twenty eggs when she is sitting on the nest so before settling down she pushes the surplus（剩余，过剩的）ten or so eggs out of the nest. The rejected eggs, however, never include any of her own. Each female is remarkably consistent in the size and shape of the eggs she produces, so it is not difficult for her to distinguish her own from those of strangers.Of all the eggs laid by a colony of （群体）ostriches, only a very small number hatch into young birds. There are times when nests are left unprotected, for there are too few males to sit on all the nests at night. Thus there are ample（充足的）opportunities for their natural enemies to raid （袭击）the nests and eat the eggs. In fact, nearly 80% of the nests are destroyed. But even if a particular female’s nest suffers this fa te, there is a good chance that one or two of her eggs will be hatched in the nest of one of her neighbors.56.We learn from the text that an ostrich can go a long distance at high speed as ______.A.it is a special kind of birdB.it lives in large desert areasC.it has special wings and legsD.it is the largest bird in the world57.Normally, in every rainy season, the female ostrich produces about ______.A.12 eggs in her nestB.18 eggs in her nestC.20 eggs in her nestD.30 eggs in her nest58.The female ostrich would push some of the eggs out of her nest because ______.A.she can only hatch her own eggsB.those eggs are unlikely to be hatchedC.those eggs are to be hatched by othersD.she can only hatch a limited number of eggs59.The female ostrich identifies her own eggs by their size and ______.A.colorB.numberC.shapeD.weight60.The female ostrich lays her eggs in her neighbors' nests most probably because ______.A.her nest is not big enoughB.she cannot protect all her eggsC.she cannot tolerate all her eggsD.her nest is not comfortable enoughPart IV TranslationSection ADirections:There are 10 phases in this part.You are to translate the phases into Chinese or vice verse,and write them down in the blank.(20 points)1.threshold voltage( ) 6.运算放大器( )2.Schottky diode( ) 7.正向偏置( )3.differential amplifier( ) 8.电阻系数( )4.unity-gain buffer( ) 9.电容( )5.negative feedback( ) 10.电感( )Section BDirections:There are 2 passages in this part.You are to translate the passages into Chinese or vice verse,and write them down in the blank.(20 points)Passage 1The resistance of an electrical conductor depends on 4 factors, these being:(a) The length of the conductor. Resistance, R, is directly proportional to length, l, of a conductor, i.e. R∝l.(b) The cross-sectional area of the conductor. Resistance, R, is inversely proportional to cross-sectional area, a, of a conductor, i.e. R∝1/a.(c) The type of material.(d) The temperature of the material.Passage 2The only functional difference between a p-n-p transistor and an n-p-n transistor is the proper biasing (polarity) of the junctions when operating. For any given state of operation, the current directions and voltage polarities for each type of transistor are exactly opposite each other.Part V WritingDirections:For this part,you should write a short essay entitled How to Learn Electronic ESP Well.You should write at least 100 words following the outline given below.(20 points)1.电子专业英语学习的重要性2.电子专业英语学习的内容3.如何学好专业英语How to Learn Electronic ESP Well。
2014年12月电大远程网络教育大学英语B统考题库试卷4
一、交际英语1、- I have an appointment with Dr. Edward.- ________A：Please wait for a minute.B：Are you sick?C：Tell me about your appointment.D：Dr. Edward didn't tell me.答案：A2、May I move your bag a little and take this seat?_______.A：I don't mindB：It doesn't matterC：You do it pleaseD：Go ahead答案：D3、- This box is too heavy for me to carry it upstairs.- _______A：You may ask for help.B：I'll give you a hand.C：Please do me a favor.D：I'd come to help.答案：B4、- - Well, they got there last Wednesday. So about a week.A：When did your parents arrive in Paris?B：How long have your parents been in Paris?C：Did your parents arrive in Paris last Wednesday?D：When will your parents go to Paris？答案：B5、- Thank you for inviting me.- _______A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C二、阅读理解1、Computers can injure you.电脑会伤害到你。
(完整版)电子信息专业英语试卷B
一、根据英文单词写出中文词义（每题1分共20分）silicon 硅2 power dissipation 功耗3 flip flop 触发器4 base band 基带5 micron 微米6 assembly language 汇编语言7 transient response 瞬态响应8 quality factor 品质因子9 power supply 电源10. quantization level 量化电平11. undersampling 欠采样12. dielectric 介电的13. decibel 分贝14. duty cycle 占空比15. transducer 传感器16. emulation 仿真17. power-up 加电18. buffer 缓冲器19. semi-custom 半定制20. synthesis 综合二、根据中文词义写出英文单词（每题1分共20分）1. 电流源current source2．晶体管transistor3．周期period4．稳定性stability5．矢量vector6．复位reset7．除法division8．振荡器oscillator9．锁存器latch10．滤波器filter11．电感inductance12．电容capacitance13．寄存器register14．正反馈positive feedback15．并联parallel16．谐振resonance17. 晶体crystal18．原理图schematic19．整流器rectifier20．增益gainWhat is a filter? A filter is a device that passes electric signals __at_ certain frequencies or frequency ranges __while_ preventing the passage of others.Filter circuits are used ___in____ a wide variety of applications. In the filed of telecommunication (在电信领域),band-pass filters are used in the audio frequency range (0kHz to 20kHz) for __modem and speech processing__ (调制解调器和语音处理).High-frequency band-pass filters(several hundred MHz) are used for ____channel selection_ (信道选择)in telephone central offices. Data acquisition systems usually require _anti-aliasing low-pass filters__（抗混叠低通滤波器) as well as low-pass noise filters in their preceding __signal conditioning_ (信号调理)stages. System power supplies often use band-rejection filters to suppress the 60-Hz frequency and high frequency transients. In addition, there are filters that do not filter_ (滤除)any frequencies of a complex input signal, but just add a ___linear phase shift__ (线性相移)to each frequency component，thus contributing a constant __time delay__（时延）.These are called ___all-pass filter__ (全通滤波器).At high frequencies (>1 MHz), all of these filters usually consist __of_ passive components __such as__ inductors (L), resistors (R), and capacitors(C). They are then __called______ LRC filters. In the low frequency range (1 Hz to 1 MHz), however, the inductor value becomes very large and the inductor itself gets quite bulky, ___making__ economical production difficult. In these _cases_____, _active filters_(有源滤波器) becomes important. Active filters are circuits that use _operational amplifier__ (运算放大器) as the active device ___in__ combination with some resistors and capacitors to provide an LRC-like filter performance at low frequency.四. 翻译（每题5分共40分）1. As in the first-order case, the second-order low-pass transfer function tends to zero as frequency tends to infinity.当频率趋近于无穷时，二阶低通滤波器的传输函数趋近于零（和一阶低通滤波器的传输函数一样）。
2014年12月网络电大、奥鹏教育、远程教育统考大学英语B考前真题6
1．—Could you help me with my physics, please?—A．No, no way. B．No, I couldn’t.C．No，I can’t. D．Sorry I can’t. I have to go to a meeting right now.2．—Could I speak to Don Watkins，please?—A．I’m listening．B．Oh，how are you?C．Speaking，please．D．I’m Don．3．—Could I borrow your car for a few days?—A．Yes，you may borrow．B．Yes，go on．C．Sure，here your are．Enjoy your journey．D．It doesn’t matter．4．—Thank you for inviting me．—A．I really had a happy time．B．Oh，it’s too late．C．Thank you for coming．D．Oh，so slowly?5．—May I see your tickets，please?—A．Sure B．No，you can’t．C．No，they are mine．D．Yes，you can．1—5 DCCCA1．【答案】D。
【解析】对别人要求帮助的拒绝，要说出理由。
这样容易被人接受。
2．【答案】C。
【解析】这是打电话时的用语。
接电话的人正是对方要找的人，所以说：“请讲”。
3．【答案】C。
【解析】对方借车，车主同意。
“没问题，开走，玩好！”4．【答案】C。
【解析】应邀而来相见。
客人说：“感谢您的邀请!”主人方说：“谢谢光临!”5．【答案】A。
【解析】“请给我看一下你的票，好吗？”“当然了。
”Passage 1Community service is an important component of education here at our university．We encourage all students to volunteer for at least one community activity before they graduate．A new community program called “One On One’’ helps elementary students who’ve fallen behind．Your education majors might be especially interested in it because it offers the opportunity to do some teaching，that is，tutoring in math and English．You’d have to volunteer two hours a week for one semester．You can choose to help a child with math，English，or both．Half–hour lessons are fine，so you could do a half hour ofeach subject two days a week．唯一QQ：2014年12月新版大纲题库已更新.唯一QQ：2014年12月新版大纲题库已更新.1、全国电大、远程网络教育统考、大学英语B、计算机应用基础统考辅导。
《电子信息专业英语》课程期末考试卷（A卷）
《电⼦信息专业英语》课程期末考试卷（A卷）1 共2页第1页XXXX 职业技术学院20 19⾄2020学年第⼆学期考核试卷课程名称__电⼦信息专业英语___ 卷号 _A__ 课程考核类别：□考试□考查考核形式开卷笔试使⽤专业班级 XX 移动通信技术班出卷⼈ __XXX_______ 审卷⼈__XXX___ 考试时间__90___分钟⼀、Judge true and false according to technical knowledge.（每⼩题1分，共10分）1. Multimedia means many forms of communication such as audio and video.( )2. An embedded controller may lack any human-readable interface devicesat all. ( )3. There is no movement in the animation. ( )4. The microcontroller units use the embedded design and have higherintegration. ( )5. Before applying DSP, a digital signal must be converted into analog form.( )6. To avoid self-heating, the current through the RTD must be keptsufficiently low and constant. ( )7. The roles of the encoder and the demodulator are almost the same in thatboth prepare the signal appearing across its output terminals. ( )8. The Third Generation is the mobile multimedia based on CDMA technology.( )9. Insert an ammeter in the circuit to measure current. ( )10. View shortcut menus by left-clicking with the mouse. ( )⼆、Translate the following phrases and expressions.（每⼩题2分，共30分）(1)document (2)menu (3)version(4)integration (5)sideband (6)interference(7)transducer (8)detector (9)protocol(10)static graphic images (11) serial ports (12)read-only memory (13)an envelope detector(14)power amplifier (15)communication system三、Match Column A with Column B.（每⼩题2分，共10分）Column A Column B.（1）toolbar a. a device measure the temperature of environment base on the variation of resistance (2)DSP b. the medium used to transmit thesignal from the transmitter to the receiver (3)temperature sensing device c. common used computer commands chosen from the View/ menu, whichare displayed in tool buttons(4)amplification d. the processing of signals bydigital means(5)channel e. to compensate for the loss ofsignal power四、Choose the best answer.（每⼩题2分，共20分）1. The 555 integrated circuit is used for .A. timingB. filterC. amplifierD. instrument2. GPS determines by computing the difference between the time asignal is sent and the time it is received.A. distanceB. timeC. locationD. length3. Wireless communications means transmission of information by .A. optical fiberB. cableC. radioD. fixed telephone4. Resistance-Temperature Detector is a device which be used tomeasure .A. temperatureB. resistanceC.voltageD. current5. Digital television receiver covert the ananlog, or , electronictelevision signals received by an antenna into an electronic digital code.A. separateB. continuousC. slenderD.disperse6. The phrase ”volatile memory ” can be replace by .A. ROMB.RAMC. EEPROMD. EPROM7. A digital signal consits of a stresm of numbers, usually(but notnecessary) in form.专业班级_____________ 学号______________ 姓名________________装订线A. binaryB. decimalC. analogD. octal8. The radio receiver has the task of the imcoming modulated signal.A. amplifyingB. transmittingC. modulatingD. demodulating9. The chooses the best form for the signal in order to optimize its detection at the ouput.A. encoderB. decoderC. modulatorD. demodulator10. The value of one resitance is 2kΩ, another is 4kΩ, these two resistor are in parallel with eachother and in series with a battery of 12V. The current following through the resistor which resistance is 4kΩis .A. 9mAB. 6mAC. 3mAD. 2mA五、Translate the following sentences into Chinese.（每⼩题6分，共30分）1. Multimedia technology combines audio and visual material to enhance communication and enrich multimedia presentation.2. In addition to all arithmetic and logic elements of a general purpose microprocessor, the microcontroller usually also integrates additional elements such as read-only and read-write memory, and input/output interfaces.3. In a broadcasting system, irrespective of whether it is based on amplitude modulation or frequency modulation, the receiver not only has the task of demodulating the incoming modulated signal, but it is also required to perform some other system functions such as carrier-frequency tuning, filtering, amplification.4. Television is a system of sending and receiving pictures and sound by means of electronic signals transmitted through wires and optical fibers or by electromagnetic radiation.5. Multimedia services add high speed data transfer to mobile devices, allowing new video, audio and other applications through mobile phones —allowing music and television and the Internet to be accessed through a mobile terminal.1 共2页第1页。
电子电工英语考试试卷
密封 线密 封 线 内 不 得 答 题院系 班级 _____________ 读写组 姓名 学号2015至2016学年第二学期期末考试电子电工专业英语 试卷（闭卷）课程性质：必修 考核方式：考试 专业：2014计算机学院注意事项：1、答卷必须用黑色或蓝色笔作答，不许使用铅笔或红色笔；2、本卷共五大题，满分100分，考试时间90分钟。
1. cur rent_______________ (电流） 2. sist tran or (晶体管) 3. elec nics tro (电子学) 4. con sili (硅)5. p chi (芯片)6. sym bol (符号)7. de dio (二极管) 8. V o lt age(伏特) 9. mo dulation (调制) 10. bi nary(二进位的)（ ）1. circuit （ ）2. device （ ）3. copper（ ）4. resistor （ ）5. switch （ ）6. filed （ ）7. electricity（ ）8. heat ( ) 9. charge （ ）10. industry A. 设备 B. 电路C. 电荷D. 工业E. 热F. 电阻 G . 领域H.铜I. 开关J.电（ ）1. Alternating Current (AC) A. 动力电 （ ）2. dynamic electricity B. 失去控制 （ ）3. Integrated Circuits C. 交流电 （ ）4. out of control D. 集成电路 （ ）5. electron tube E. 欧姆定律 （ ）6. Ohm ’s LawF. 电子管 （ ）7. direct current (DC) G . 良导体 （ ）8. good conductor H. 在控制之下 （ ）9. under controlI. 直流电 （ ）10. Potential DifferenceJ.电势差I. Spell the English words with the given letters according to the Chinese given. (20 points, 2 points for each)用所给字母拼写出符合汉语意思的单词。
2014年职称英语(综合类)B级真题试卷(题后含答案及解析)
2014年职称英语（综合类）B级真题试卷(题后含答案及解析)题型有：1. 词汇选项 2. 阅读判断 3. 概括大意与完成句子 4. 阅读理解 5. 补全短文6. 完形填空词汇选项(第1-15题，每题1分，共15分)下面每个句子中均有1个词或短语在括号中，请为每处括号部分的词汇或短语确定1个意义最为接近选项。
1．Afterwards there was just a feeling of let-down.A．excitementB．angerC．calmD．disappointment正确答案：D解析：本句意思：后来只有一种失望的感觉。
let-down意思是“失望，沮丧”，与disappointment(失望)意思相近。
excitement兴奋，激动；anger怒火，怒气；calm平静，宁静。
2．The committee was asked to render a report on the housing situation.A．copyB．furnishC．publishD．summarize正确答案：B解析：本句意思：委员会被要求提交一份有关住房情况的报告。
render意思是“递交，提交”，与furnish(提供，供应)意思相近。
copy复制，复印；publish 出版，发行；summarize总结，概括。
3．The curriculum was too narrow and too rigid.A．hiddenB．inflexibleC．traditionalD．official正确答案：B解析：本句意思：课程设置过于狭窄和死板。
rigid意思是“死板的，僵硬的”，与inflexible(不灵活的，僵化的)意思相近。
hidden隐藏的；traditional传统的；official官方的。
4．He led a very moral life.A．honorableB．humanC．intelligentD．natural正确答案：A解析：本句意思：他这个人一向很正派。
《电子技术专业英语》试题及参考答案_A卷
2011 至2012 学年第1 学期《电子技术专业英语》试卷（A ）1. There can be no doubt the 1900s is remembered as the electronic century.A. whichB. thatC. what2. Electrons, as one knows, are minute charge of electricity.A. negativeB. positiveC. reverse3. A resistor is an electrical component that the flow of electrical current.A. increasesB. changesC. resists4. Frequency is the reciprocal of the period, if the period is 4ms, then the frequency would be .A. 4m/sB. 0.25KHzC. 25Hz5. The sixth power of two is .A. 12B. 36C. 646. A capacitor will block current, but appears to pass current by charging and discharging.A. DC…ICB. AC…DCC. DC…. AC7. For a 4-band resistor with “color code”, the first band is the values.A. hundredsB. tensC. ten8. An electronic device often used for amplifying voltage and current is _____________.A. transistorB. conductorC. diode9. In a diode, current flows in ________ direction across the junction.A. only oneB. twoC. three10. A __________ amplifier provides signal amplification with little or no distortion, so that the output is proportional to the input.1.电压有效值（）2.微处理器（）3.电子元件（）4.公共端插孔（）5.外阻（）6.放大器（）7.脉冲直流（）8.电压源（）9.系统设计（）10.逻辑运算（）（1）internal resistance （2）pulsating DC （3）voltage sources（4）logic circuits （5）RMS voltage （6）logic operation（7）external resistance （8）number systems （9）Microprocessor（10）amplifier （11）common jack （12）digital logic circuits（13）system design （14）anode of diode （15）electrical components三、短语翻译（每小题2 分，共20 分）1. Passive electrical circuits2. Assembler language3. The address bus4. Analog multimeter5. Semiconductor material6. chip holders7. peak-to-peak voltage8. dual-trace oscilloscope9. Flowchart10. Signal generator1 / 4四、句子翻译（每小题5 分，共20 分）1. The impact of digital integrated circuits on our modern society has been pervasive. Without them, the revolution of current computer and information-technology would not exist.2. A multimeter is a general-purpose meter capable of measuring DC and AC voltage, current, resistance, and in some cases, decibels.3. When measuring current, the circuit must be opened and the meter inserted in series with the circuit or component to be measured.4. Moore's law, which predicted that the number of devices integrated on a chip would be doubled every two years, was accurate for a number of years.五、综合运用（每小题20分，共20 分）C is commonly considered to be a structured language with some similarities to Pascal. In C, a block of code is a logically connected group of program statements that can be treated as a unit. You can create a block of code by placing lines of code between opening and closing curly braces. For example:if(x<10){printf (“too low, try again”);reset_counter(-1);}The two statements after "if" that are between the curly braces are executed if x is less than10. These two statements with the braces represent a block of code. They are linked together:one of the statements cannot execute without the other also executing.(将上面的短文翻译成中文)2 / 43 / 42011 至2012 学年第 1 学期《 电子技术专业英语 》试卷（ A ）1. There can be no doubt the 1900s is remembered as the electronic century.A. whichB. thatC. what2. Electrons, as one knows, are minute charge of electricity.A. negativeB. positiveC. reverse3. A resistor is an electrical component that the flow of electrical current.A. increasesB. changesC. resists4. Frequency is the reciprocal of the period, if the period is 4ms, then the frequency would be .A. 4m/sB. 0.25KHzC. 25Hz5. The sixth power of two is .A. 12B. 36C. 646. A capacitor will block current, but appears to pass current by charging and discharging.A. DC …ICB. AC …DCC. DC …. AC7. For a 4-band resistor with “color code ”, the first band is the values.A. hundredsB. tensC. ten8. An electronic device often used for amplifying voltage and current is _____________.A. transistorB. conductorC. diode9. In a diode, current flows in ________ direction across the junction.A. only oneB. twoC. three10. A __________ amplifier provides signal amplification with little or no distortion, so that the output is proportional to the input.A. nonlinearB. linearC. electronic 1.电压有效值（ ） 2. 微处理器（ ） 3.电子元件（ ） 4.公共端插孔（ ） 5.外阻（ ） 6.放大器（ ） 7.脉冲直流（ ） 8.电压源（ ）9.系统设计（ ） 10.逻辑运算（ ）（1）internal resistance （2）pulsating DC （3）voltage sources （4）logic circuits （5）RMS voltage （6）logic operation （7）external resistance （8）number systems （9）Microprocessor （10）amplifier （11）common jack （12）digital logic circuits （13）system design （14）anode of diode （15）electrical components 三、短语翻译（每小题 2 分，共 20 分）1. Passive electrical circuits 无源电路2. Assembler language 汇编语言3. The address bus 地址总线4. Analog multimeter 模拟万用表5. Semiconductor material 半导体材料6. chip holders 芯片插座7. peak-to-peak voltage 电压峰-峰值8. dual-trace oscilloscope 双踪示波器 9. flowchart 流程图 10. signal generator 信号发生器1. The impact of digital integrated circuits on our modern society has been pervasive. Without them, the revolution of current computer and information-technology would not exist.数字集成电路对现代社会的影响是普遍深入的，没有数字集成电路，将不存在当代的计算机和信息技术革命。
2014年电大英语b网考考试题及答案免费下载
2014年电大英语b网考考试题及答案免费下载2014年电大英语B网考考试题及答案免费下载一、选择题（每题2分，共20分）1. The correct spelling of the word "library" is _______.A. libaryB. librayC. librayD. library答案：D2. Which of the following is a verb?A. bookB. libraryC. studentD. university答案：A3. Fill in the blank: I _______ to the library yesterday.A. goB. wentC. goesD. going答案：B4. Choose the correct preposition to complete the sentence:She is reading a book _______ the library.A. atB. inC. onD. to答案：B5. Which sentence is grammatically correct?A. She has a lot of books.B. She have a lot of books.C. She has lots of book.D. She have lots of book.答案：A6. What is the comparative form of "big"?A. biggerB. bigC. bigerD. more big答案：A7. The word "university" can be replaced with _______.A. schoolB. collegeC. instituteD. all of the above答案：D8. What is the past tense of "do"?A. didB. doneC. doesD. do答案：A9. Choose the correct phrase to complete the sentence: She is _______ a book.A. readB. readingC. readsD. readed答案：B10. Which of the following is an adjective?A. runB. quicklyC. fastD. slow答案：D二、填空题（每题2分，共20分）11. The opposite of "hot" is _______.答案：cold12. The word "library" is a _______.答案：noun13. The past tense of "is" is _______.答案：was14. The comparative form of "happy" is _______.答案：happier15. The word "quickly" is an _______.答案：adverb16. The correct spelling of the word "computer" is _______. 答案：computer17. The word "book" can be replaced with _______.答案：novel18. The past tense of "go" is _______.答案：went19. The word "library" is the plural form of _______.答案：librarian20. The opposite of "inside" is _______.答案：outside三、阅读理解题（每题3分，共30分）（阅读以下短文，回答问题）[短文内容省略]21. What is the main topic of the passage?答案：[根据短文内容回答]22. When did the event take place?答案：[根据短文内容回答]23. Who is the main character of the story?答案：[根据短文内容回答]24. What is the purpose of the passage?答案：[根据短文内容回答]25. What is the author's opinion about the topic?答案：[根据短文内容回答]26. What is the conclusion of the passage?答案：[根据短文内容回答]27. What is the author's recommendation?答案：[根据短文内容回答]28. What is the significance of the event described?答案：[根据短文内容回答]29. How does the author support the main idea?答案：[根据短文内容回答]30. What is the author's tone throughout the passage?答案：[根据短文内容回答]四、作文题（共30分）31. Write an essay on the topic "The Importance of Reading". Your essay should be at least 200 words.答案：[学生作文]以上为2014年电大英语B网考考试题及答案的排版及格式示例。
选择题试题试卷题库 期末考试试题(机试) 14级《 电子商务英语 》试卷 卷(一)
2017-2018学年度第二学期期末考试试题(机试) 14级《电子商务英语》试卷卷（一）【林嘉纯】您的姓名： [填空题] *_________________________________班级 [填空题]_________________________________一、单选题，将正确答案的编号填在括号里。
（每题2分，共30分）1. In the meantime, please keep us posted of （） at your end. [单选题] *A.developingB.development(正确答案)C.being developedD.develop2. The shake hands is firm in the following country ,expect（）. [单选题] *A.AmericaB.GermanyC.Indonesia(正确答案)D.Russia3. After entering the Arabian house, you shake hands with（） person first, usually but not invariably the host. [单选题] *A.the more seniorB.the most senior(正确答案)C.the more juniorD.the most junior4. In（）, people are famous for their black-slapping,death-grip handshake upon greeting and leaving. [单选题] *A. BrazilB.GermanyC.ItalyD.America(正确答案)5. which statement will be considered to be rude in the Dutch's mind?（） A.Shake hands with women. [单选题] *B.Shake hands again when leaving.C.Shake hands and say their last name, not "Hello".D. Not to identify yourself.(正确答案)6. （）are famous for their back-slapping, death-grip handshake. They are also like to maintain eye contact during handshake. [单选题] *A. ChineseB. Americans(正确答案)C. BelgiansD. Japanese7. In（）, handshake are common for both sexes, and may include grasping the arm with the other hand. [单选题] *A. Italy(正确答案)B.AmericaC. JapanD. Germany8. When greeting（）, you should never greet a woman with a kiss and never offer your hand to a woman first. [单选题] *A. an American womanB. a Japanese womanC. a Chinese womanD. an Islamic woman(正确答案)9. In （）, shaking hand is normal when being introduced, and it's also normal for two men kissing when they meet. [单选题] *A. South AfricaB. AmericaC. Argentina(正确答案)D Genmany10. The firm handshake with eye contact and smiling is an important first gesture of communication for any person ,male or female ,（） to make an impression. [单选题] *A to desireB desiring(正确答案)C desiredD be desired11. The seller may cancel the contract and reserve the right to claim （）,buyer’s breach of contract. [单选题] *A. in case aboutB. in caseC. in event of(正确答案)D. in event12. In reply, we are making you the following offer: 10,000 pieces of T-shirt （）US$ 5 per piece, CFR 2% Copenhagen. [单选题] *A. aboutB. toC. at(正确答案)D. in13. We shall appreciate it if you will see to it that amendment is cabled （）delay. [单选题] *A. inB. out ofC. within(正确答案)D. without14. We offer these goods subject（） their being unsold on receipt of your order. [单选题] *A. inB. withC. onD. to(正确答案)15. ( ) the above, we would suggest that you accept our original offer without any delay. [单选题] *A. Because(正确答案)B. AsC. In case ofD. In view of二、判断题。
专外期末试卷
2014-2015学年第一学期专业外语期末测试题(90分钟，100分)一、汉译英(请将以下专业术语译为正确的英文词组，每题1.5分，共30小题)1.理想运算放大器2.频率响应3.偏置电流4.共模抑制5.场效应晶体管6.发光二极管7.电磁场8.洛伦兹力定律9.公用电话网络10.模拟信号11.频移键控12.频分多址13.伪随机噪声码14.前向链路信道15.有损压缩16.物理量17.机器故障诊断18.蜂窝网络19.无线局域网络20.基站21.相移22.多径衰落23.空间分集24.反射材料25.人造卫星26.手持终端27.线性极化28.地球轨道29.全球卫星定位系统30.多跳路由二、英译汉(请将以下英文词组译为正确的中文，每题1分，共20小题)1.VLSI designs2.slew rate3.offset voltage drift4.electromagnetic radiation5.FM6.TDMA7.RMS 8.PDA9.protocol stack I11.DBS 12.geostationary orbit13.fixed-point telephones 14.time-division multiplexing15.closed-loop gain 16.pereodic table of elements17.MOS 18.time slot19.spread spectrum bandwidth 20.square matrix三、请将以下英文短文译为恰当的中文(每题5分，共5小题)。
(1) Another basic semiconductor structure shown in Figure 2.1 is a diode, which is formed simply by a junction of N-type and P-type silicon. Diodes act like one-way valves by conducting current only from P to N. Special diodes can be created that emit light when a voltage is applied. Appropriately enough, these components (appropriately enough) are called light emitting diodes, or LEDs.(2)Signals can either be analogue or digital. In an analogue signal, the signal is varied continuously with respect to the information. In a digital signal, the information is encoded as a set of discrete values (for example, ones and zeros). During transmission, the information contained in analogue signals will be degraded by noise.(3)W hat happens when a mobile unit “roams” from cell A to cell B? Since the power leve l received from the base station in cell A is insufficient to maintain communication, the mobile must change its server to the base station in cell B. Furthermore, since adjacent cells do not use the same group of frequencies, the channel must also change. Called “handoff”, this process is performed by the MTSO. Once the level received by the base station in cell A drops below a threshold, the MTSO hands off the mobile to the base station in cell B, hoping that the latter is close enough.(4)Improvements in submarine communications cables caused a decline in the use of satellites for fixed telephony in the late 20th century. Hand held telephones (cellular phones) used in urban areas do not make use of satellite communications. Instead they have access to a ground based constellation of receiving and retransmitting stations.(5) In the scenario where the sensors are operating in remote or dangerous territory，it may be impossible to retrieve the nodes in order to recharge batteries. In other sensor network scenarios, such as machine monitoring or medical monitoring, it may just be inconvenient to replace the battery of a node. Therefore, the network should be considered to have a certain lifetime during which nodes have energy and can gather, process, and transmit information.四、阅读英文短文，将文中缺省单词的数字序号填入表格中最佳单词选项下方的空白处(每1.InternetA global 1 connecting millions of computers. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local 2 to make available to the global Internet Community. Remarkably, this anarchy by design works exceedingly well. There are a variety of ways to 3 the Internet. Most online services, such as America Online, offer access to some Internet Services. It is also possible to gain access through a commercial Internet Service 4 (ISP).2.IP addressAn 5 for a computer or device on a TCP/IP network. Networks using the TCP/IP 6 route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255. For example, “1.160.10.240” coul d be an IP address.Within an isolated network, you can assign IP addresses at random as long as each one is unique. However, connecting a private network to the Internet requires using registered IP addresses (called Internet addresses) to avoid duplicates.3.Wireless InternetWireless Internet enables wireless connectivity to the Internet via 7 waves rather than wires on a person’s home computer, laptop, smartphone or similar mobile devices. Wireless Internet can be accessed directly through providers like AT&T, Verizon, T-Mobile, Boingo and Clearwire.While most wireless Internet options lack the high speed of landline 8 Internet connections such as cable and DSL, newer wireless Internet technologies like EV-DO and WiMAX are narrowing the gap, with maximum speed of up to 7Mbps in some cases.WiFi 9 hotspots and wireless LANs are also options for wireless Internet connectivity. In these cases, Internet connectivity is typically delivered to a network hub via a wired connection like satellite, cable, DSL, or fiber optics and then made available to wireless 10 via a wireless access point.。
2014年电大远程网络教育大学英语B统考题库试卷9
2014年电大远程网络教育大学英语B统考题库试卷9Ddate more than a week away tend to be forgotten. The meaning of time differs in different parts of the world. Thus, misunderstandings arise between people from different cultures that treat time differently. Promptness is valued highly in American life, for example. If people are not prompt, they may be regarded as impolite or not fully responsible. In the U.S. no one would think of keeping a business associate waiting for an hour, it would be too impolite. A person, who is 5 minutes late, will say a few words of explanation, though perhaps he will not complete the sentence.(1)、What is the main idea of this passage?________A：It is not customary to telephone someone in the morning and in sleeping hours in the U.S.B：The role of time in social life over the world. C：If people are late, they may be regarded as impolite or not fully responsible in the U.S.D：Not every country treats the concept of time as the same.答案： B(2)、What does it mean in the passage if you call someone during his or her sleeping hours?_______A：A matter of work.B：A matter of life or death.C：You want to see him or her.D：You want to make an appointment with him or her.答案： B(3)、Which of the following time is proper if you want to make an appointment with your friend in the U.S. A.?A：at 7:00 amB：at 4:00 pmC：at the midnightD：at 4 am答案： B(4)、Which of the following statements is true according to the passage? ________A：In the U.S.A. guests tend to feel they are highly regarded if the invitation to a dinner party is extended only three or four days before the party date.B：No misunderstandings arise between people from different cultures about the concept of time. C：It may be considered foolish to make an appointment well in advance in the U.S.A..D：Promptness is valued highly in American life. 答案： D(5)、From the passage we can safely infer that_______A：it's a matter of life or death if you call someone in day time.B：the meaning of time differs in different parts of the world.C：it makes no difference in the U.S. whether you are early or late for a business party.D：if a person is late for a date, he needn't make some explanation.答案： B三、词汇与语法1、If she wants to stay thin, she must make a _____ in her diet.A：changeB：turnC：runD：go答案： A2、That was a difficult question, but Mary still_______ to work it out.A：didB：failedC：keptD：managed答案： D3、There are a lot of news ______today's newspaper.A：inB：onC：atD：with答案： A4、I'll give you a ring if Mike ________ tomorrow. A：comesB：will comeC：cameD：is coming答案： A5、The rain was _______ make our picnic impossible.A：hard enoughB：hard so toC：so hard as toD：so hard to答案： C四、完型填空Man can not go on increasing his number at the present rate. 人类不能以现在这样的速度继续增长下去。
2014年4月电大英语B统考(交际英语)
一、交际英语1、--Can you go to the concert with us this evening？--_____A：No, I already have plans.B：I'd love to, but I'm busy tonight.C：No, I really don't like being with you.D：I'm ill, so I shouldn't go out.答案：B2、- Oh, sorry to bother you.-________.A：That's okayB：No, you can'tC：That's goodD：Oh, I don't know答案：A3、-- We are going to have a singing party tonight. Would you like to join us?-- ________A：I'm afraid not, because I have to go to an important meeting.B：Of course not. I have no idea.C：No, I can't.D：That's all set.答案：A4、_________He teaches physics in a school.A：What does your father want to do?B：Who is your father?C：What is your father?D：Where is your father now?答案：C5、- Thank you for inviting me.- _______A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C1、--Would you mind changing seats with me?--_____A：Yes, you can.B：Of course, I like to.C：No, I don't mind.D：Certainly, please do.答案：C2、-- What about having a drink?-- _______.A：Good ideaB：Help yourselfC：Go ahead, pleaseD：Me, too答案：A3、- That's a beautiful dress you have on!- __________A：Oh, thanks. I got it yesterday.B：Sorry, it's too cheap.C：Hey you can have it.D：See you later.答案：A4、- How about going to dinner at the Mexicanrestaurant tonight?-A：Forget it.B：Sorry, I like Mexican food.C：That's great!D：Glad you like it.答案：C5、- Who's speaking?- This is Tom .A：speaksB：spokenC：speakingD：saying答案： C1、- What's the problem with your bike?- _________A：Not at all.B：Good, thank you.C：Nothing serious.D：Sure答案：C2、--Hello, may I talk to the director now？--__________A：Sorry, he is busy at the moment.B：No, you can't.C：Sorry, you can't.D：I don't know.答案：A3、- Madam, do all the buses go downtown?- _________A：Wow, you got the idea.B：No, never mind.C：Pretty well, I guess.D：Sorry, I'm new here.答案：D4、- How was your trip to London, Jane?- ___________A：Oh, wonderful indeed.B：I went there alone.C：The guide showed me the way.D：By plane and by bus.答案：A5、-- Congratulations! You won the first prize intoday's speech contest.-- ________A：Yes, I beat the others.B：No, no, I didn't do it well.C：Thank you.D：It's a pleasure.答案： C1、-- Good morning, sir. May I help you-- _______.A：Yes, I don't buy anything.B：No, I don't need your help.C：Yes, I need some sugar.D：Oh, no. That's OK.答案：C2、--How is Mr Brown?-- ______________.A：He is tall and beautifulB：He is very strict with usC：He is fineD：He is in an expensive car答案：C3、-- Please help yourself to the seafood.-- ________A：No, I can't.B：Sorry, I can't help.C：Well, seafood don't suit.D：Thanks, but I don't like seafood.答案：D5、-- That's a beautiful dress you have on! -- __________A：Oh, thanks. I got it yesterday.B：Sorry, it's too cheap.C：Hey you can have it.D：See you later.答案： A1、-- What about having a drink?--________.A：Good ideaB：Help yourselfC：Go ahead, pleaseD：Me, too答案：A2、--What can I do for you？--________A：I want a kilo of pears.B：You can do in your own way.C：Thanks.D：Excuse me. I'm busy.答案：A3、-- Hey, Tom, what's up?-- ________A：Yes, definitely!B：Oh, not much.C：What is happening in your life? D：You are lucky.答案：B4、-- How are you, Bob?--________A：How are you?B：I'm fine. Thank you.C：How do you do?D：Nice to meet you.答案：B5、-- Hello, I'm Harry Potter.-- Hello, my name is Charles Green,but________.A：call my CharlesB：call me at CharlesC：call me CharlesD：call Charles me答案： C1、-- Good morning, sir. May I help you?-- _______.A：Yes, I don't buy anything.B：No, I don't need your help.C：Yes, I need some sugar.D：Oh, no. That's OK.答案：C2、－How do you do?--________A：How are you?B：Good afternoon.C：I'm fine.D：How do you do?答案：D3、-- Please help yourself to the seafood.-- ________A：No, I can't.B：Sorry, I can't help.C：Well, seafood don't suit.D：Thanks, but I don't like seafood.答案：D4、-- Thank you for inviting me.--_______A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案：C5、-- Why didn't you come to my birthday partyyesterday?--________A：Excuse me, my friend sent me a flower.B：Fine, I never go to birthday parties.C：Ha…ha, I like swimming.D：Sorry, but my wife had a car accident.答案： D1、- I'm going to take my entrance test tomorrow.- _______!A：Good luckB：CheersC：Come onD：Congratulations答案：A2、- Would you like to go to a concert thisevening?- _______.A：OK. Let's go.B：You are welcome.C：But I have nothing else to do.D：Not bad.答案：A3、- Could you help me with my physics, please？- _______.A：No, no way.B：No, I couldn't.C：No, I can't.D：Sorry I can't. I have to go to a meeting rightnow.答案：D4、- Could I borrow your car for a few days?- _______.A：Yes, you may borrow.B：Yes, go on.C：Sure, here is the key. Enjoy your journey.D：It doesn't matter.答案：C5、- Unbelievable! I have failed the driving testagain!- _______ This is not the end of the world.A：Good luck.B：Cheer up.C：Go ahead.D：No problem.答案： B1、- Where is Miss Smith?- _________A：She's from England.B：She's at home.C：She's not back.D：She's very well.答案：B2、- Are you going on holiday for a long time?- _________A：It was a long time.B：Two weeks ago.C：No. Only a couple of days.D：Not long time ago.答案：C3、- Hello, I'm Harry Potter.- Hello, my name is Charles Green,but_________.A：call my CharlesB：call me at CharlesC：call me CharlesD：call Charles me答案：C4、- This box is too heavy for me to carry it upstairs.- _________A：You may ask for help.B：I'll give you a hand.C：Please do me a favor.D：I'd come to help.答案：B5、- Hey, Tom, what's up?- __________A：Yes, definitely!B：Oh, not much.C：What is happening in your life?D：You are lucky.答案： B1、- We are planning an outing. _________- Sure.A：Where are you going?B：When will you leave?C：How is everything?D：Do you want to join us?答案：D2、-Do you think I could borrow your dictionary? -___________.A：Yes, you may borrowB：Yes, you couldC：Yes, go onD：Yes, help yourself答案：D3、- Who's speaking?- This is Tom___________ . .A：speaksB：spokenC：speakingD：saying答案：C4、- I wonder if I could use your computertonight?- ___________ I'm not using it right now.A：Sure, go ahead.B：I don't know.C：It doesn't matter.D：Who cares?答案：A5、- ___________- He teaches physics in a school.A：What does your father want to do?B：Who is your father?C：What is your father?D：Where is your father now?答案： C1、-_________.-Thank you.A：CongratulationsB：CongratulationC：CongratulateD：To congratulate答案：A2、- Would you like to go to a concert thisevening?- _________.A：OK. Let's go.B：You are welcome.C：But I have nothing else to do.D：Not bad.答案：A5、- Excuse me, could you show me the way tothe nearest post office?- __________ Oh yes! Two blocks away fromhere at the Green Avenue. You can't miss it.A：I beg your pardon?B：What do you mean?C：You're welcome.D：Mm, let me think.答案： D。
2014年9月电大大学英语B统考题库试卷(全10卷)+往年题库
一、交际英语1、May I move your bag a little and take this seat?_______________.A：I don't mindB：It doesn't matterC：You do it pleaseD：Go ahead答案： D2、- ________________- You too!A：Merry Christmas!B：What a beautiful day!C：Help yourself!D：It's very kind of you!答案： A3、- Who's speaking?- This is Tom .A：speaksB：spokenC：speakingD：saying答案： C4、- Excuse me, could you show me the way to the nearest post office?- __________ Oh yes! Two blocks away from here at the Green Avenue. You can't miss it.A：I beg your pardon?B：What do you mean?C：You're welcome.D：Mm, let me think.答案： D5、- Could I speak to Don Watkins, please？- _______________A：Speaking, please.B：Oh, how are you？C：I'm listening.D：I'm Don.答案： A一、交际英语1、May I move your bag a little and take this seat?_______________.A：I don't mindB：It doesn't matterC：You do it pleaseD：Go ahead答案： D2、- ________________- You too!A：Merry Christmas!B：What a beautiful day!C：Help yourself!D：It's very kind of you!答案： A3、- Who's speaking?- This is Tom .A：speaksB：spokenC：speakingD：saying答案： C4、- Excuse me, could you show me the way to the nearest post office?- __________ Oh yes! Two blocks away from here at the Green Avenue. You can't miss it.A：I beg your pardon?B：What do you mean?C：You're welcome.D：Mm, let me think.答案： D5、- Could I speak to Don Watkins, please？- _______________A：Speaking, please.B：Oh, how are you？C：I'm listening.D：I'm Don.答案： A一、交际英语1、--___________today.--Yes. It was even hotter yesterday.A：It's so coldB：It's so wetC：It's so hotD：It's so windy答案： C2、Our class won the girls' relay race in our school's sports meeting.- ____________ A：That's right.B：Thanks a lot.C：Congratulations!D：It's a pleasure.答案： C3、- David injured his leg playing football yesterday. - Really? ______________A：Who did that?B：What's wrong with him?C：How did that happen?D：Why was he so careless?答案： C4、- Who's speaking?- This is Tom _______ .A：speaksB：spokenC：speakingD：saying答案： C5、- This box is too heavy for me to carry it upstairs.- ______________A：You may ask for help.B：I'll give you a hand.C：Please do me a favor.D：I'd come to help.答案： B一、交际英语1、- Bring me the bill, please. - _________A：You are welcome.B：Please wait for a moment, sir.C：I'll hurry up.D：Be quick.答案： B2、-- Did you win the 100 metre race?-- Yes, I did.-- Really?-- __________.A：CongratulationsB：Best wishesC：Good luckD：Right答案： A3、- Hello, may I talk to the director now?- ________________A：Sorry, he is busy at the moment.B：No, you can't.C：Sorry, you can't.D：I don't know.答案： A4、- Could you help me with my physics, please？- _______________A：No, no way.B：No, I couldn't.C：No, I can't.D：Sorry I can't. I have to go to a meeting right now.答案： D5、-- Must I take a taxi?-- No, you _______________ . You can take my car. A：had better toB：don'tC：must notD：don't have to答案： D一、交际英语1、--Do you dance?--Yes, I do.--_________?--Every weekend.A：How hard do you practiceB：How much do you pay for itC：How often do you go dancingD：How long do you practice it答案： C2、--I went to the beach and got plenty of rest.--_________. You looked tired last time I saw you.A：I hope soB：ReallyC：I'm glad you didD：The sound was nice答案： C3、-- Wow! This is a marvelous room! I've never known you're so artistic. --_____________A：Great, I am very art-conscious.B：Don't mention it.C：Thanks for your compliments.D：It's fine.答案： C4、-- Madam, do all the buses go downtown?-- _______A：Wow, you got the idea.B：No, never mind.C：Pretty well, I guess.D：Sorry, I'm new here.答案： D5、-- Who's speaking?-- This is Tom _______ .A：speaksB：spokenC：speakingD：saying答案： C一、交际英语1、- I've passed the examination.- __________A：What a pity.B：I hate the exam.C：Congratulations.D：Come on.答案： C2、- Have a nice holiday!- ______________A：You have it too.B：You do too.C：The same as you.D：The same to you.答案： D3、- I'm sorry. I lost the key.- _______________A：Well, it's OK.B：No, it's all right.C：You are welcome.D：You are wrong.答案： A4、- Wow! This is a marvelous room! I've never known you're so artistic.- _____________ A：Great, I am very art-conscious.B：Don't mention it.C：Thanks for your compliments.D：It's fine.答案： C5、- Could I speak to Don Watkins, please？- _______________A：Speaking, please.B：Oh, how are you？C：I'm listening.D：I'm Don.答案： A一、交际英语1、- Hello, could I speak to Mike please?- ___________A：Who are you?B：Who is speaking?C：What's wrong?D：Why?答案： B2、-We'll have a basketball match this afternoon. -___________.A：Good luckB：Never mindC：Yes, pleaseD：It's nothing答案： A3、_______ - Well, they got there last Wednesday. So about a week.A：When did your parents arrive in Paris?B：How long have your parents been in Paris?C：Did your parents arrive in Paris last Wednesday?D：When will your parents go to Paris？答案： B4、- Thank you for inviting me.- ______________A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C5、- Excuse me, could you show me the way to the nearest post office?- __________ Oh yes! Two blocks away from here at the Green Avenue. You can't miss it.A：I beg your pardon?B：What do you mean?C：You're welcome.D：Mm, let me think.答案： D一、交际英语1、---- Happy birthday to you!-- __________A：Happy birthday to you!B：I am very glad．C：That's all right．D：Thank you．答案： D2、- Mr. Jones, this is Sean, an English teacher from the United States.- __________ A：What can I do for you?B：Nice to meet you.C：Please keep in touch.D：Haven't seen you for ages.答案： B3、- Thank you for inviting me.- _______A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C4、- How are you, Bob?- ______________A：How are you?B：I'm fine. Thank you.C：How do you do?D：Nice to meet you.答案： B5、- This box is too heavy for me to carry it upstairs.- ______________A：You may ask for help.B：I'll give you a hand.C：Please do me a favor.D：I'd come to help.答案： B一、交际英语1、－Could you help me put up the signs on the wall? －_______.A：No problemB：I hope soC：That's all rightD：That's a good idea答案： A2、- Mr. Jones, this is Sean, an English teacher from the United States.- _________ A：What can I do for you?B：Nice to meet you.C：Please keep in touch.D：Haven't seen you for ages.答案： B3、- Thank you for inviting me.- ____________A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C4、- Hello, may I talk to the director now?- ________________A：Sorry, he is busy at the moment.B：No, you can't.C：Sorry, you can't.D：I don't know.答案： A5、-- Must I take a taxi?-- No, you _______________ . You can take my car.A：had better toB：don'tC：must notD：don't have to答案： D一、交际英语1、- I have an appointment with Dr. Edward.- ________A：Please wait for a minute.B：Are you sick?C：Tell me about your appointment.D：Dr. Edward didn't tell me.答案： A2、May I move your bag a little and take this seat?___________.A：I don't mindB：It doesn't matterC：You do it pleaseD：Go ahead答案： D3、- This box is too heavy for me to carry it upstairs.- ____________ A：You may ask for help.B：I'll give you a hand.C：Please do me a favor.D：I'd come to help.答案： B4、- _______ - Well, they got there last Wednesday. So about a week. A：When did your parents arrive in Paris?B：How long have your parents been in Paris?C：Did your parents arrive in Paris last Wednesday?D：When will your parents go to Paris？答案： B5、- Thank you for inviting me.- ______________A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C一、交际英语1、- Thank you ever so much for your lovely gift.- ________A：Never mindB：I'm glad you like it.C：Please don't say so.D：No, It's not so good.答案： B2、Would you go to the concert with me?__________, but I'm very busy now.A：I'd like toB：SureC：No problemD：Certainly答案： A3、- Thank you for inviting me.- ____________A：I really had a happy time.B：Oh, it's too late.C：Thank you for coming.D：Oh, so slowly?答案： C4、- Hello, I'm Harry Potter.- Hello, my name is Charles Green, but _____________. A：call my CharlesB：call me at CharlesC：call me CharlesD：call Charles me答案： C5、- Excuse me, could you show me the way to the nearest post office?- _________________ Oh yes! Two blocks away from here at the Green Avenue. You can't miss it.A：I beg your pardon?B：What do you mean?C：You're welcome.D：Mm, let me think.答案： D。
电工英语B卷
2013-2014学年度第二学期期末考试《电工英语》B卷班别：_______ 姓名：____________ 学号：_______ 成绩：_________一、英汉互译（每空1.5分，共30分）1.Residential Electrician _______________2.arrangement ________________3. component _________________4. safety site ___________________5. after-sales service _______________6. water heater__________________7. charger ____________8. induction motor _____________9. facility _____________ 10. breakdown _____________11. 保险丝 ____________ 12. 信号_______________13. 钻孔机 _______________ 14. 执行_________________15. 电工________________ 16. 装置 _________________17. 仪表板 ______________ 18. 插孔 ________________19. 电缆槽 _________________ 20. 欧姆 ________________二、选出英文句子的中文意思，并将编号写在相应的括号里。
（每空2分，共20分）( )21. quite a few days a. 申请信用卡( )22. apply for a credit card b. 日夜不停地轮班干活( )23. be dependent on the requirement c. 根据要求决定( )24. work shifts around this clock d. 说话要当心( )25. power transmission e. 向对方订货( )26. reply to this letter f. 好几天( )27. install electrical wiring systems g. 安装电气布线系统( )28. carry out this plan h. 电力传输( )29. watch out for what you say i. 执行这个计划( )30. place an order with you j. 回复这封信三、从右栏中找出左栏的答案，把标号填入括号内（每题2分，共20分）（）31.How much is four and six? A. Ten.（）32.Where’s your book? B. The red one.（）33.Who’s coming? C. Very good.（）34.What are you doing? D. My uncle and my aunt.（）35.Why are you doing? E. Fine, thanks.（）36.Which is your book? F. At eight o’clock.（）37.How are you? G. Two o’clock.（）38.What time is it? H. On the chair.（）39.When does school start? I. I’m reading.（）40.How does the cake taste? J. Because it’s late.四、将下列句子的序号写在正确的横线上。
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广州工程技术职业学院
机电工程（系）院 （2014—2015学年 第一学期） 《电子技术专业英语》期末考试试卷 B 卷共4页 2014年12月 考试形式：□开卷 √闭卷 考试时间：120分钟
I. Multiplechoice(20’)
1. The sixth power of two is .
A. 12
B. 36
C. 64
2. Electrons, as one knows, are minute charge of electricity.
A. negative
B. positive
C. reverse
3. A resistor is an electrical component that the flow of electrical current.
A. increases
B. resists
C. changes
4. “The current is directly proportional to the voltages across it.” These can be described by formula _______.
A. I=u/R
B. p=u*I
C. I=q/t
5. The algebraic sum of the ________ entering any node is zero.
A. current
B. reactance
C. voltage
6. The conductivity of semiconductors is ______ than that of insulator but ________ than that of conductors.
A. lower…lower
B. lower…higher
C. higher….lower
7. For a 4-band resistor with “color code ”, the first band is the values.
A. hundreds
B. tens
C. ten
8. An electronic device often used for amplifying voltage and current is _____________.
A. diode
B. conductor
C. transistor
9. In a diode, current flows in ________ direction across the junction.
A. only one
B. two
C. three
班级___________ 姓名___________ 学号_____________
--------------------------------------------------------------装订线------------------------------------------------
10. A __________ amplifier provides signal amplification with little or no distortion, so that the output is proportional to the input.
A. nonlinear
B. linear
C. electronic
II. Match up(20’)
1.模拟电子技术（）
2.直流电路（）
3.电子元件（）
4.机械调节（）
5.外阻（）
6.放大器（）
7.脉冲直流（）
8.电压源（）
9.系统设计（）10.逻辑运算（）
（1）internal resistance （2）pulsating DC （3）voltage sources
（4）logic circuits （5）analog electronics （6）logic operation
（7）external resistance （8）number systems （9）direct current circuits （10）amplifier （11）mechanical adjust （12）digital logic circuits
（13）system design （14）anode of diode （15）electrical components
III. phrase translation(20’)
1. Passive electrical circuits
2. Assembler language
3. Specific meters
4. Analog multimeter
5. Semiconductor material
6. Forward biased
7. peak-to-peak voltage
8. under this circumstance
9. demodulating equipment
10. Ohm's law
IV. Sentence tranlation(20’)
1. The amount of current (I) flowing in a resistor is directly proportional to the voltage across it and inversely proportional to the resistance of the resistor.
2. A multimeter is a general-purpose meter capable of measuring DC and AC voltage, current, resistance, and in some cases, decibels.
3. The motherboard is the main circuit board inside the PC which holds the processor, memory and expansion slots and connects directly or indirectly to every part of the PC（Fig 9.1）.
4. Moore's law, which predicted that the number of devices integrated on a chip would be doubled every two years, was accurate for a number of years.
V. put the following into english(20’)
C is commonly considered to be a structured language with some similarities to Pascal. In C, a block of code is a logically connected group of program statements that can be treated as a unit. You can create a block of code by placing lines of code between opening and closing curly braces. For example:
if(x<10)
{
printf (“too low, try again”);
reset_counter(-1);
}
The two statements after "if" that are between the curly braces are executed if x is less than 10. These two statements with the braces represent a block of code. They are linked together: one of the statements cannot execute without the other also executing.。