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《实用科技英语教程》阅读理解参考答案Unit 1 Computer ScienceText A多项选择1. B．keep up with the increased amounts of information in the world2. D．buying and selling3. A．keeping contact with other people4. C．people can be connected to the Internet正误判断1. T2. NG3. T4. F5. F6. NG完成句子1. productivity and efficiency2. their future sales, profits and costs3. Learning-by-doing4. hand held computers5. faster and cheaperText B多项选择1. A．it is small and portable.2. B．Newer laptops with larger screens are available because of improved technology.3. D．They become much smaller to replace desktops.4. C．The weight should be considered if you travel a lot.完成句子1. are miniaturized2. size and weight3. features and design4. The surgeUnit 2 The InternetText A正误判断1. T2. F3. F4. T5. F6. NG7. T8. T9. T多项选择1. A．It originated from a national network.2. C．It consists of network facilities and information resources.3. B．it allows a jump to other Internet services4. D．it developed the particular tradition and customs of its own 完成句子1. exchange messages and conduct electronic “conferences”2. to set up a remote terminal connection3. a high-speed data communication circuit and a radio channel多项选择1. A. You can’t get on the Internet without it.2. B. they have a large number of users3. A. You can’t get connected to the Internet.4. D. It helps the main server work during rush hour.5. C. they can’t use other services provided online except sending and receiving emails 完成句子1. an Internet account with some ISP2. internal modems3. The quality of the connection4. the format5. a problem in your connectionUnit 3 Automation TechnologyText A正误判断1. T2. F3. T4. F5. T6. F7. T完成句子1. welding, spray painting2. they can be reprogrammed by a computer to do another task3. A sense of touch and the ability to see and make decisions4. grow多项选择1. A．They are made for only one job.2. B．They help save time for us to do other things.3. D．Rovio4. C．negativeUnit 4 The EnvironmentText A多项选择1. C．reducing global warming2. A．the breakdown of the Soviet Union resulted in ceasement of effective management3. D．The conservation proved a great success in terms of its remarkable population growth.4. B．the intense poaching5. A．marketing them for entertainment gives them an economic value正误判断1. T2. T3. NG4. F5. NGText B多项选择1. D．It contains sulphuric acid and nitric acid.2. B．fishermen in North America and Europe noticed a sharp reduction in the quantity of fish.3. A. The soil contains less nutrients for plants.1. coal burning; processing raw ore2. fossil fuels; forest fires3. aquatic species; the deaths of the hatchlings4. food; habitat5. the tracks are badly damaged due to corrosion caused by acid rainfallList the effects of acid rain on plant life.1. are damaged by acidic rainfall, causing the growth of the plant to be stunted, or even in its death2. are destroyed by the acidity3. The waxy layer on the leaves4. Plant germination and reproductionWhat can we do to alleviate the effects of acid rain?1. A reduction in use of vehicles2. Reducing power consumption3. Speak to others about this problem4. enact suitable legislationUnit 5 Energy ScienceText A正误判断1. T2. F3. T4. F5. F6. T7. F8. T9. NG10. T1. investment and experience2. “phantom load”3. between 7 and 10 percent4. using transparent materials5. improves insulationText B多项选择1. A．They can be converted into electricity.2. B．global warming3. D．It affects many areas.4. C．the affected plants are forced to focus on internal repair选词填空1. B2. E3. D4. A5. C6. FUnit 6 TransportationText A多项选择1. D．all of the above2. A．they can compete with the Toyota Prius3. A．it was an energy-efficient vehicle made of the greenest materials4. C．Microjoule5. B．train正误判断1. T2. F3. NG4. T5. F完成句子1. miles per gallon2. sleek and high-performing vehicles3. 1) cardboard bicycle; 2) electric bike; 3) hybrid vehicle4. reduction in pollution; reduce congestionText B正误判断1. F2. F3. T4. T5. F6. T7. F8. T9. T10.FCountries and Measures1. public transit and bicycle paths2. Unnecessary trips3. cash alternative4.Car-sharing networks; incentives to driveUnit 7 Materials ScienceText A正误判断1. T2. T3. F4. T5. F6. T7. T8. F9. F10. TText B正误判断1. T2. F3. T4. F5. T6. F7. F8. T多项选择1. C. A and B2. D. it has numerous possible applications完成句子1. an environmental risk; the development of silver-antibiotic-resistant bacteria2. how nanoscale materials behaveUnit 8 BiotechnologyText A正误判断1. T2. T3. F4. T5. F6. F7. F8. F9. F10. T完成句子1. white biotech or green chemistry2. enzymes and genetically engineered microbes3. Enzymes; microbes4. oil price5. Growing non-food cropsText B完成句子1. a scientific discipline2. organic and nonorganic3. biological catalysts4. products; services5. bread-making6. the first biotechnological revolution7. genetic engineering, enzyme technology, and fermentation technology8. the inventions and process and product innovations9. agriculture, pharmaceuticals, chemicals, and even weaponry10. natural agriculture products多项选择C．both A and BUnit 9 Space ScienceText A多项选择1. A．Scientific and industrial experiments2. C．artificial gravity3. B．Human beings themselves4. D．people can make money from the relevant research完成句子1. recycling air and water2. 3 years3. weightless environment4. to profit from spaceText B完成句子1. science from space; science in space2. telescopes3. Greater clarity4. high-energy atomic particles5. orbit other planets6. spacecraft; robots7. microgravity environment8. Weightlessness9. the development and functionality10. evolution分类Science from Space：B,C,F,H,I,L,MScience in Space：A,D,E,G,J,K,NUnit 10 Earth Science Text A正误判断1. F2. NG3. T4. F5. T完成句子1. subdisciplines2. cooperative and collaborative3. continents move; cools and hardens4. more accurate搭配1. D2. A3. B4. CText B多项选择1. B．It occurs when frictional stress continues to release.2. D．the severing of electrical and gas lines3. A．aftershocks4. C．some of them become liquefied when saturated 完成句子1. become locked2. have already been weakened3. cause destruction; take human lives4. higher losses of life5. at least 1783 deaths6. 7.9。
Main Content: UNIT 1 MATHEMATICSI.Text OrganizationParts ParagraphsMain IdeasPart One Paras. 1-3 Game theory can be defined as the science ofstrategy which studies both pure conflicts(zero-sum games) and conflicts in cooperativeforms.Part Two Paras.4-11 There are two distinct types of strategic interdependence: sequential-move game and simultaneous-move game.Part Three Paras.12-19The typical examples of game theory are givenas the basic principles such as prisoners’dilemma, mixing moves, strategic moves,bargaining, concealing and revealinginformation.Part Four Para. 20 The research of game theory has succeeded inillustrating strategies in situations ofconflict and cooperation and it will focus onthe design of successful strategy in future. nguage PointsThe games it studies range from chess to child rearing and from tennis to takeovers. (Para.1)Paraphrase: The games it (game theory) studies extends from chess to child bringing-up and from tennis to handovers.range: v. to vary between limits, extend, run in a linee.g. (1) The price ranges from $ 30 to $ 80. (2) The boundary ranges from north to south.takeover: n. the act or an instance of assuming control or management of or responsibility for sth. 接收、接管e.g. The economy of Hongkong goes well after its takeover. Game theory was pioneered by Princeton mathematician John von Neumann. (Para.2)pioneer: v. to be a pioneer; to originate (course of action etc., followed later by others)e.g. The new treatment for cancer was pioneered by the experts of state hospital.pioneer: n. original investigator of subject or explorer or settler; initiator of enterprisee.g. The young generation was greatly motivated by the pioneers’exploits.That is, the participants were supposed to choose and implementtheir actions jointly. (Para.2)Paraphrase: That is, the players were expected to select and carry out their actions together.…he must anticipate and overcome resistance to his plans. (Para.3) anticipate: v. 1) to expect or realize beforehand; to foresee e.g. The experts are anticipating the negative effects of air pollution.anticipate: v. 2) to deal with or use before proper time 预支e.g. Ted was not used to saving monthly and he would always anticipate his income.The essence of a game is the interdependence of player strategies. (Para.4)Paraphrase: The key principal of a game is that player strategies are dependent on each other.essence: n.1) the quality which makes a thing what it is; the inner nature or most important quality of a thinge.g. The two things are the same in outward form but different in essence.essence: n. 2) extract obtained from a substance by taking out as much of the mass as possiblee.g. milk essence; essence of peppermint (椒薄荷、椒薄荷油) interdependence: n. the quality or fact of depending on each otherinter-为前缀，意为between each other, 类似的词还有interchange、intermarry、international、interview等。
Main Content: UNIT 1 MATHEMATICSI.Text OrganizationParts ParagraphsMain IdeasPart One Paras. 1-3 Game theory can be defined as the science ofstrategy which studies both pure conflicts(zero-sum games) and conflicts in cooperativeforms.Part Two Paras.4-11 There are two distinct types of strategic interdependence: sequential-move game and simultaneous-move game.Part Three Paras.12-19The typical examples of game theory are givenas the basic principles such as prisoners’dilemma, mixing moves, strategic moves,bargaining, concealing and revealinginformation.Part Four Para. 20 The research of game theory has succeeded inillustrating strategies in situations ofconflict and cooperation and it will focus onthe design of successful strategy in future. nguage PointsThe games it studies range from chess to child rearing and from tennis to takeovers. (Para.1)Paraphrase: The games it (game theory) studies extends from chess to child bringing-up and from tennis to handovers.range: v. to vary between limits, extend, run in a linee.g. (1) The price ranges from $ 30 to $ 80. (2) The boundary ranges from north to south.takeover: n. the act or an instance of assuming control or management of or responsibility for sth. 接收、接管e.g. The economy of Hongkong goes well after its takeover. Game theory was pioneered by Princeton mathematician John von Neumann. (Para.2)pioneer: v. to be a pioneer; to originate (course of action etc., followed later by others)e.g. The new treatment for cancer was pioneered by the experts of state hospital.pioneer: n. original investigator of subject or explorer or settler; initiator of enterprisee.g. The young generation was greatly motivated by the pioneers’exploits.That is, the participants were supposed to choose and implementtheir actions jointly. (Para.2)Paraphrase: That is, the players were expected to select and carry out their actions together.…he must anticipate and overcome resistance to his plans. (Para.3) anticipate: v. 1) to expect or realize beforehand; to foresee e.g. The experts are anticipating the negative effects of air pollution.anticipate: v. 2) to deal with or use before proper time 预支e.g. Ted was not used to saving monthly and he would always anticipate his income.The essence of a game is the interdependence of player strategies. (Para.4)Paraphrase: The key principal of a game is that player strategies are dependent on each other.essence: n.1) the quality which makes a thing what it is; the inner nature or most important quality of a thinge.g. The two things are the same in outward form but different in essence.essence: n. 2) extract obtained from a substance by taking out as much of the mass as possiblee.g. milk essence; essence of peppermint (椒薄荷、椒薄荷油) interdependence: n. the quality or fact of depending on each otherinter-为前缀，意为between each other, 类似的词还有interchange、intermarry、international、interview等。
《科技英语》课后习题答桉完整版大学英语的预习好帮手Main Content: UNIT 1 *****TICSText A “Game Theory”科技英语阅读方法“名词化结构”科技英语翻译技巧“名词化结构”Step:II. Language Points大学英语的预习好帮手… he must anticipate and overcome resistance to his plans. (Para.3) anticipate: v. 1) to expect or realize beforehand; to foresee e.g. The experts are anticipating the negative effects of air pollution. anticipate: v. 2) to deal with or use before proper time 预支e.g. Ted was not used to saving monthly and he would always anticipate his income. The essence of a game is the interdependence of player strategies. (Para.4) Paraphrase: The key principal of a game is that player strategies are dependent on each other. essence: n.1) the quality which makes a thing what it is; the inner nature or most important quality of a thing e.g. The two things are the same in outward form but different in essence.essence: n. 2) extract obtained from a substance by taking out as much of the mass as possible e.g. milk essence; essence of peppermint (椒薄荷、椒薄荷油) 椒薄荷、interdependence: n. the quality or fact of depending on each other inter-为前缀，意为between each other, 类似的词还有interchange、intermarry、international、interview 等。
《科技英语》课后习题答案Main Content: UNIT 1 MATHEMATICS I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 2 MEDICINE➢Text A “Making a Little Progress”➢科技英语阅读方法“复合词”➢科技英语翻译技巧“科技术语”Step:I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 3 GENETIC ENGINEERING➢Text A “Ready or Not? Human ES Cells Head Toward theClinic”➢科技英语阅读方法“缩微词”➢科技英语翻译技巧“词的转译、增译和省译”Step:I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 4 TELECOMMUNICATIONS➢Text A “10 Hottest Telecom Technologies of the Year”➢科技英语阅读方法“拼缀词”➢科技英语翻译技巧“形容词和副词的比较级”Step:I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 5 WIRELESS COMMUNICATIONS➢Text A “Your Next Computer”➢科技英语阅读方法“派生词”➢科技英语翻译技巧“非限定动词”Step:I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 6 COMPUTER SCIENCE➢Text A “Get Mean, Go Green”➢科技英语阅读方法“根据上下文的线索猜测词义”➢科技英语翻译技巧“倍数”Step:I.Text Organizationnguage PointsIII.Background InformationIV.Skills for ReadingV.Skills for TranslationVI.Translation PracticeMain Content: UNIT 7 INTERNET➢Text A “We Know Where You Are”➢科技英语阅读方法“后置定语”➢科技英语翻译技巧“定语从句”Step:I.Text Organizationnguage PointsIII.Background Information。
您的考试成绩为：66分50 第5讲英文科技论文写作规范错√考试计时2012年12月19日星期三10:21:37考试时长: 100分钟已用时间: 00:00:06剩余时间: 01:39:53时间限制:100分钟离考试结束还剩 1小时 39分 53秒 (到时间后将自动交卷)一、单项选择题(共10小题，每小题2分)1.关于18时6分25秒的表述：A．18:06:25(中间用冒号:)B．18h 6min 25sC．18︰06︰25（中间用比例号︰）D．1806252.（）是科技论文中表达意思时实际使用的独立而完整的最小单位，是判断和推理的基本形式AA．段落B．短语C．句子D．关键词3.英文科技论文的文体特点（）①高度的专业性②论文结构格式化③文体正式④科学性与创新性 AA、①②③B、①②④C、②③④D、①③④4.（）应具有代表性、专指性、可检索性和规范性A．关键词B．摘要C．标题D．结论5.实验型科技论文主要是介绍通过（）而获得的科学成果。
BA．实验研究B．实验观测C．理论推理D．实践总结6.综述型科技论文的内容要求（）①选题要新②说理要明③层次要清④语言要美⑤文献要新⑥校者把关DA. ①②④⑤⑥B. ②③④⑤⑥C. ①②③④⑤D. ①②③④⑤⑥7.以下不属于阅读技能和技巧的为（）A.精读B.泛读C.广读D.略读8.编辑加工的内容（）为不正确CA.内容B.技术C.图像D.文字9.英文科技论文正文中的时态和语态描述错误的是（）A描述内容为不受时间影响的事实，用一般现在时B描述内容为特定、过去的行为或事件，用过去时C在讨论材料和方法时，一般用主动语态D表达作者观点或看法时，采用主动语态或不定式结构10.以下属于工程实践型科技论文的语言风格的为（）A.注重施工工艺、施工方法、工程材料等方面的创新B.注重理论上的推导和分析C.运用大量的数学公式和数学、物理、化学等符号D.文字论述较少二、多项选择题(四选项)(共15小题，每小题2分)1.英语科技论文正文部分篇幅长、容量大、覆盖面广，出现的问题也较多，下列属于其突出问题的有（）A. 完整性问题B. 句式单调，词语欠精炼C. 逻辑性问题D. 时态和语态2.数理公式的排版要注意以下事项（） ABDA．辨清各字母的文种、字体，确定字母、符号及缩写字的位置、含义，细加标注B．注意区分主辅，公式的主体应排在同一水平线上C．具有特定含义的线段、符号可以随意加长、截短或改变D．分清繁分式的主辅线，主线要比辅线长，且与公式主体符号排在同一水平线上3.人身权利包括（）。
高级英语写作作业Part 1 Vocabulary and StructuresQuestions 1-5ExampleChoose FIVE appropriate words or expressions from the list a-h to complete the following paragraph. There are THREE extra choices that you don’t need. Write your answer on the Answer Sheet.a. producesb. Moreoverc. just asd.imitatese. focusf. For exampleg. Similarlyh.devoteWriters and potters are similar in that they both learn their crafts by imitating masters, people skilled in the craft. They (1) ______h____ a great deal of time and concentration to following these masters. (2) _____f_____, before the potter can produce a delicate vase or a symmetrical pitcher, he or she must spend time watching a master at work. Likewise, a novice writer cannot produce a well-organized essay or even a coherent paragraph without first studying good models. The potter observes the way the expert spins the wheel and forms the clay; then he or she tries to do exactly what the master has done. (3) ______g___the apprentice writer (4) ___d_______ the work of a master writer. The potter begins with small, simple projects. In the same way, the writer begins with short paragraphs and proceeds to the essay only after mastering the basics. So (5)_______c___ the potter gains inspiration and skill from an experienced artist, a writer learns to communicate effectively after studying the work of master writers.Part TwoParagraph Organization and DevelopmentQuestion 6-8ExampleRead the following paragraphs of an essay about modern technology and its effect on our lives.A．Technology surrounds us and is a part of our daily lives. We can find technological innovations at home, our workplace, our schools, and our playgrounds. Although technology has improved our lives in some ways, it has also brought many negative consequences.B．We have everything we need and our inventions take care of so many unpleasant details in our day-to-day lives. Foods from all over the world are available at localsupermarkets. International travel is now fast and easy. We can talk to friends on cell phones any time, anywhere, and we can catch a TV show from many countries far away.C．These conveniences have a price, however. We consume too much energy and too many resources, and we create too much waste. The world is overflowing with pollution and waste. Waste water treatment plants are built in the outskirts of bit cities. We cannot continue like this forever.D．We should be more responsible about protecting our world while still enjoying conveniences. If our natural world is destroyed, the conveniences will be useless.Answer the following questions.6. Which of the following serves as the thesis statement? (C)A. Technology surrounds us and is a part of our daily lives.B. We can find technological innovations at home, our workplace, our schools, and our playgrounds.C. Although technology has improved our lives in some ways, it has also brought many negative consequences.7. Which of the following can be the topic sentence for paragraph B ?( B)A. Modern technology has been the cradle of modern civilization.B. Modern technology has made life very convenient.C. Modern technology has given birth to the IT industry.8. Which of the following sentences is irrelevant to the main point of the essay?(A)A. Paragraph C.Waste water treatment plants are built in the outskirts of big cities.B. Paragraph A.Technology surrounds us and is a part of our daily lives.C. Paragraph B.International travel is now fast and easy.Question 9ExampleRead the following outline first before you complete the task.OutlineParagraph A:1. two purposes of eye contact in the U.S.a. getting attentionb. signaling that you are paying attention or listening2. using eye contact to get attention in a public spacea. of a waiterb. of an usherc. of a salesperson3. techniquea. watch the personb. establish eye contactParagraph B:1. using eye contact to show that you’re paying attention or listening2. rule: look the entire time when the speaker is speaking3. meaning: the nonverbal mes sage is“I’m listening”Complete paragraph A according to the outline provided.●Make sure your tone and the vocabulary you use are in unity with the relevant paragraphs.●Write about 60—80 words. Write your answers on the Answer Sheet.Eye Contacts in the United StatesA. There are two purposes of eye contact in the United States: getting someone’s attention and showing that you are listening to the speaker. …Using eye contact is a way of getting someone’s attention in a public place. You can use this to get the attention of a waiter or a waitress in a busy restaurant, an usher in the theater, or a sales assistant at a store. The technique is to locate the person you want, watch him or her carefully, and as soon as the person turns in your direction, look directly in his or her eyes. The waiter will come over to you. The usher will show you your seat. The server will take your money.B. Using eye contact is also important in North America to show a speaker that you are paying attention. The general American rule for conversational eye contact is to look at the speaker’s eyes the entire time he or she is speaking—that is, having his or her turn in the conversation. This tells the speaker “I’m listening to you.” If you look away even for a few seconds, the speaker may think that you are bored.Part 3 Writing an essayExample:Question 10: Write an essay on ONE of the following topics.1.Write an essay about someone you admire.2.Write a cause and effect essay about activities that contribute to good health.You should write about 150-180 words. Write the answer on your Answer Sheet.My masterConverting to be the Buddhist over 10 years, I have the chance to show my dear master in the temple. Before I stepped into the temple, I do believe that like every one the Buddhism is the religion.whenever I saw most of the people knot down in front of the Buddha and prayed something from the bottom of the heart, I was always confused that is the Buddha God? Does it really help?If praying works, Is it really fair?If It helps, when the offenders in the corruption really were assisted by Buddha,is it the Buddhism in everyone’s heart. When I am in it, I got my answer from my master. The Buddhism is not the religion , it is actually the education, it teaches the people how to correct their wrong behaviors,it teaches us how to dedicate ourselves to the others rather than always opening the hands and get something from the others. Cultivating our heart is from inside. It is not from outside surrounding. Then you will benefit from it. I did learn a lot from my master. He is not only my teacher, he is also like my parents. His great love truly warm and comfort my heart. I will follow his step and fulfill my “Buddha dream”.。
科技英语课后答案【篇一：科技英语课后答案】class=txt>第一单元第8页 9. 伺服驱动器 servo actuator1. processing speed处理速度2. user-friendly interactive graphics用户友好的交互图形3. product cycle产品周期4. design specification设计规格5. design evaluation设计评价6. 计算机辅助设计cad7. 计算机辅助制造cam8. 计算机辅助工程.cae9. 设计过程design process10. 制造过程production process第二单元第24页1. amplitude modulation [am] 调幅2. radio frequency射频3. ice bath冰点槽4.be proportional to与?成比例5.a digital display register数字显示器6.音频麦克风audio microphone7.接收系统receiving system8.传输系统transmitting system9.开关控制on-off control10.设置温度set the temperature第三单元第37页1.manual or automatic transmissions手动或自动挡2.the interior design内部设计minated lithium-ion cells薄板锂离子电池4.solar panel太阳能电池板5.head and tail lamps头尾灯6.概念车concept car7.全景摄像头around view camera8.测试平台test bed9.电池组battery pack10.转弯半径tuning circle第四单元第51页1. part program零件程序2. punched tape 穿孔纸带3. hydraulic actuator液压制动器4. dimensional information三维信息5. computer numerical control计算机数控6. 电子工业协会 eia7. 基本长度单位 basic length-unit8. 以?的形式in the form of10. 步进电机stepping motor 第五单元第66页 1. laser printers激光打印机 2. local area network局域网 3. nonvolatile memory永久性存储器4. optical scanner光扫描仪 5. electronic circuitry电子电路 6. 调制解调器modulator-demodulator 7. 色带inked ribbon 8. 只读存储器read-only memory 9. 数码影碟digital versatile disc 10. 中央处理器 cpu（central processing unit只用回答cpu就行了）第六单元第83页 1. commercial transactions 商业交易 2. electronic medium电子媒介 3. communication platforms交流平台4. after-sale service and support售后服务和支持 5. internal processes内部流程 6. 营销工具marketing tool 7. 售前信息pre-purchase information 8. 高科技（公司的）股票high-tech stocks 9. 信息技术information technology 10. 一种全新的方法/式 an entirely new way 第七单元第99页 1.technology revolution技术革命 2. voice commands语音命令 3. cellular network蜂窝网络 4. set up temporary offices建立临时办公室 5. location-based service定位服务 6. 掌上电脑personal digital assistant 7. 投影键盘projection keyboard 8. 手机迷a phone guy 9. 豪华大屏显the luxuriously large screen 10. 智能手机 smart phones. 第八单元第113页 1.giant magnetoresistive effect巨磁电阻效应2.semiconductor lasers and leds半导体激光器和发光二极管3. national nanotechnology initiative（美国)国家纳米技术计划4. carbon fiber reinforced plastics碳纤维增强7. 纳米技术nanotechnology塑料 8. 条形码阅读器barcode readers5. rechargeable batteries充电电池 9. 固态照明装置solid-state lighting6. 非磁性材料nonmagnetic materials 10. 锂离子电池li-ion battery一、翻译句子（考5个）第一单元第8页1. today’s industries cannot survive worldwide competition unless they introduce new productswith better quality（quality, q）, at lower cost（cost, c）, and with shorter time delivery（delivery,d）.除非能以较低的价格提供更好的质量及更短的交货时间提供新产品，否则任何企业都无法在当今的国际竞争中立足。
V、练习参考答案练习1I、1、the（各项均为负。
)2、the; a （功率额定值是电阻器不会引起温度太大的上升而能安全地耗散的最大功率。
）3、an（这是均方根值伏特计。
）4、The; a（该设备的成功设计需要详细地了解性能指标。
）5、the; a; a（在氢原子的布尔模型中，一个电子绕一个质子以半径为R的圆周运转。
）6、the（电阻的单位是欧姆。
）7、an （这是一个h参数。
）8、/; /（图5－1画出了Oersted的实验。
）9、A; a; a（机器是能够传递力来完成某一确定目的的一种设备。
）10、/（水压机将在第14章加以考虑。
）11、the; the [/]（我们容易确定参数μ的值。
）12、/; the（根据式（2－1），我们得到以下的关系式。
）13、the; /（作者工作在位于阿林顿的得克萨斯大学。
）14、an（甚至当积分区间并不是无穷时，能够恰当地显示一个时函数的傅氏变换的仪器是多么重要啊！）II、1.Dr. Emmet graduated from Harvard University in 2001.2.Professor Li earned his Ph.D. degree in mechanical engineering from the Xi’anUniversity of Technology in 1988.3.Now we shall turn to the discussion of local area networks.4.The Bainbridge mass spectrometer is as important an instrument as the opticalspectrometer.5.How long a time [或How much time] is required to this experiment? The densityof a substance is its mass per unit volume.6.An increase in pressure always causes a decrease in volume.7.Fig. (2-5) shows what is expressed by Eq. (2-2).8.The unit of inductance is the henry.III、1.The UAS MA protocol employs a unique frame structure.2.Finally, a broad stepped impedance transformer is designed by this method.3.Dynamic analysis and evaluation of the security of a proactive secret sharingsystem4.The approach can be applied to the one-dimensional potential barrier with anarbitrary profile.5.We propose a numerical method based on Newton’s iterative method.练习2I、1. This circuit consists of a battery, an inductor and a capacitor.2. Compute the electric fields at points a, b, and c.3. This satellite is used for communications between the United S tates and Great Britain, France and Italy.4. We assume that the antenna is vertical and that its loss is zero.5. Chapters 6, 7, and 8 deal with transmission lines.II、1. Its error is six parts in 1012.2. This computer stores four times more information than that one (does).3. The demand for this kind of equipment in the near future will be 20 times what it is.4. The voltage across this component is a few tenths of a volt.5. Now its internal pressure is one sixteenth what it was.III、1. This object is over five times heavier than that one is.2. Unless otherwise stated, it is assumed that silicon transistors are used and that I CB Ocan be neglected.3. This circuit has the advantages of simple structure and easy adjustment.4. Figs. 1, 2, and 3 show this process in detail.5. For further information, consult references [3, 5, 9].练习3I、1. This new type of computer has many advantages over the general type.2. It is not difficult to solve this differential equation for the unknown quantity.3. Of these five new chapters, the first one deals with the basic principles of negative feedback.4. At this point/time, current differs in phase from voltage by 90o.5. By analyzing [By the analysis of] the parameters of the instrument, we can understand its performance.6. We will find out its average velocity over this distance.7. The science of electronics is too important in the world today.8. They solved this problem with great difficulty.II、1. For x＞1, there is no solution to this equation [this equation has no solution].2. Upon [On] substituting [substitution of] these values into [in] theequation, we obtained the following expression..3. This circuit is similar in operation to that of Fig. 1-10.4. This computer is very good in performance.5. These waves travel only in one direction.III、1. This paper presents a new method for the recognition of radar target s.2. The influence of the moving state of the target on the tracking accuracy of the EKF is great.3. Another comsat was launched on the morning of the 8th of October.4. V oltage is measured in volt s.5. They will leave for Beijing to attend an international conference on mobile communication.6. Unless otherwise stated, it is assumed that silicon transistors are used and that I CBO can be neglected.7.练习4I、1. The force acts perpendicular to the surface of the table.2. The three coefficients here remains to be determined.3. The two equations below will be often (frequently) used in later chapters/in thechapters which follow.4. Here we use two metal balls 10 cm apart.5. The output remains/stays constant/unchanged/fixed/unaltered/the same.6. All the textbooks available discuss this problem.7. Accurate in operation and high in speed, computers have found wide applications.8. The answer to this problem looks correct.9. Two parallel wires a distance (of)δapart carry the current i.10. The problem now is how to measure the voltage across this component.11. These data will be sent to the computing center 2 kilometers away.12. Upon rearranging the equation above, we have [get, obtain] the following expression.13. These charges can interact with other charges present.14. Forces can be transmitted without contact, contrary to the common belief.15. This coefficient is typically 0.35.II、1. In this case, the input does not fall; nor [neither] does the output. […; the outputdoes not fall, either.]2. The resistance of a conductor depends not only on the material of which theconductor is made, but also on the size and temperature of the conductor.3. These scientists are very interested in this topic.4. This parameter can hardly be measured.5. In this laboratory, this instrument is more expensive than any other one/ any one else.6. The features of this device are small size and light weight.练习5I、1. This equation can be solved in either of the following two ways/the two ways which follow.2. This baseball will soon come to rest because of its interaction with the ground.3. Our choice of this coefficient as 1 is correct.4. From its definition as the ratio of a force to a length, we can see that k has the same unit as work (does).5. Our analysis of the machine is of great significance.6. This facilitates their use in circuit analysis.II、1. This police car is equipped with a receiver the size of a matchbox.2. Wires one hundredth the diameter of a silk thread are used to connect these components.3. W e must water cool these equipments/devices.4. In the past, telephone calls were operator connected.5. AC can be changed/turned/converted/transformed/translated into/to DC, a process called/known as/referred to as rectification.6. A magnet attracts iron materials, a familiar phenomenon.7. Computers are capable of processing information, a process that previously could be accomplished only inside our heads.8. An instrument for measuring current, voltage, and resistance, the multimeter is widely used in electrical engineering.III、1. Secs. 1.1 and 1.2 will discuss several other problems.2. Problems are listed/given on pp. 1-5.3. In the equations above, all h’s are the hybrid parameters.4. The mass of the standard pound is equal to 0.4535924277 kilogram s.5. All a’s and b’s in Eq. (5-1) are related to the impedance R o.6. W e must take the effect of temperature on [upon] semiconductors into account.7. In this case, the variation of output with input is very small.8. This curve shows the dependence of distance on/upon speed.IV、1. None of them can solve this special type of differential equation.2. They do not know whether this material can stand so large a force or not.3. There are M polygons altogether, each of which has N vertexes.4. These two engineers are busy (in) designing a new kind of software.5. Iron is almost as good a conductor as aluminum.练习6I、1. This image, it will be noticed, is a real image.2. This technical problem, we hope, will be solved soon.3. 210 is approximately 1000, a fact that we think is very useful in the study of digital electronics.4. A resistor of say 100 ohms should be used here.II、1. None of those textbooks have/has mentioned this point.2. All of these x values cannot satisfy the equation.3. Neither of the two conditions is satisfied here.4. In the preceding/previous chapter, we discussed all kinds of force.5. This paper describes a new method for designing aircraft.6. By the end of the last century, the company had manufactured 5 000radars.7. Since 2008, this research institute has been developing a special kind of robot.III、1. In Section 1-2, the concept of force was introduced.2. As early as the 1940s, it was found that semiconductors are very useful.3. This result can also be arrived at in another way.4. At that time no use was made of this phenomenon/…, thisphenomenon was made no use of.5. This point will be dealt with in the next section.IV、1. This computer works much better than that one (does)/This computer is much better in performance than that one (is)..2. This computer requires many more components that that one (does).3. The distance of the moon from the earth is as great as 240 000 miles.4. The greater the resistance, the longer time it takes for the capacitor to reach its maximum voltage/…, the longer time is required for the capacitor to reach its maximum voltage.)5. The current as small as 0.1 A cannot produce enough heat.V、1. It is easy for us to determine the weight of the body. 或：We can determine the weight of the body easily.2. The two engineers are busy (in) designing a new type of computer.3. We find this concept very difficult to explain.4. None of these windows can withstand so large a force.5. Work equals [is equal to] force multiplied by/times distance.6. The results obtained agree with the experimental values. [… are in agreement with the experimental values.]练习7I、1. It will take a few months to design this kind of aircraft with the help of a computer.2. It is left as a problem to [for] the reader to show that this expression holds.3. The program to be executed is stored in this unit.4. This valley acts as the foundation on which to build the dam.5. In this laboratory there are many kinds of instrument for students to choose from.6. Let t0 equal/be equal to zero.7. The farther away the target (is), the longer time it takes for the echo to return.8. For the series to converge, x must be less than 1.9. We find this concept very difficult to understand.10. This method makes it much easier to detect targets.11. This factor will affect the ability of a computer to store information.12. We have to find out how large to make r so as for the series to converge.13. This is a pen to draw pictures with.14. Elasticity is the tendency of a body to return to its original condition after being deformed.15. Ordinary matter is said to be electrically neutral.16.This property makes it possible for metals to be made into any shape.17. This table is unfit for a student to do experiments on.18. Now we consider what path of integration to take.II、1. The sine law of the variation of light intensity with the cylinder diameter has been emphasized.2. Not only do temperature and light affect the conductivity, but the addition of impurities to semiconductors also makes it change greatly.3. V arious satellites are frequently launched to obtain information about/on space.4. Our semiconductor industry came into being at the end of the 1950s.5. My colleagues and I would like to express our thanks to Professor W. Smith for his great help.练习8I、1. The amplifier amplifies the received signals.2. Moving molecules have kinetic energy.5. Fig. 1 – 3 shows the photo of a freely falling body.3. Speed equals distance divided by time.4. V oltage equals/is equal to current multiplied by resistance.5. The resistance of air increases with the increased/increasing/an increase in speed.6. A transformer is a device consisting of two or more coils wound on/round an iron core.7. It is necessary to find out the current flowing through this component.8. This book, properly used, will be of great help to the reader.9. Flowing through a circuit, the current will lose part of its energy.10. Given/Knowing time and speed, we/one can find out distance.11. Having studied this chapter, the student will understand/will have understood the principle of a computer.12. The speed of light being extremely great, we cannot measure it by ordinary methods.13. Several comsats were launched, all of them (being) high-altitude satellites.14. Called “the mother of all networks,”the Internet is a widely used international network.15. This force can be resolved into two components, one (being) horizontal and the other vertical.II、1.Let us construct/draw a circle with the origin as the center and of radius R.2.This parameter should be measured with E grounded.3. With no resistance in the circuit,the current will increase indefinitely.4. With this in view, we have written this book.5. This paper introduces a new design method/technique, with emphasis on its principle. III、1.Let us consider designing a computer.2.We refer to these components as being passive.3.This involves taking the Fourier transform.4.On/Upon rearranging the above equations, we obtain the following set ofequations.5.In using this equation, it does not matter which plane is considered as 1.IV、1. Given/Knowing resistance and current, one/we can determine/calculate voltage.2. The price of this instrument is high.3. A robot is a special kind of electronic device.4. The current starts flowing at the very moment we close the circuit.5. They have been designing a new type of computer these six months.练习9I、1. The problem was not solved until a completely different method was introduced.2. Nearly 100 years passed before the existence/presence of subatomic particles was confirmed by experiment/experimentally.3. The year this device was invented, World War II broke out.4. Small as they are, atoms are made up of still smaller particles.5. These two resistors should be selected/chosen so that the transistor can operate normally.6. The body is in such a state that it can do work.II、1. The relation that voltage is the product of current and resistance applies to all the dc circuits.2. The discovery that magnetism can produce current is extremely important in the field of electricity.3. An equation is an algebraic statement that two algebraic expressions are equal.4. There is evidence that no life exists on the moon.5. The question now arises whether the algorithm is of practical use.6. In this case there is no guarantee that the series is convergent.7. There is a growing/increasing awareness that these techniques/methods are very useful.8. One of/Among the most noteworthy achievements at that time was the realization that light consists of electromagnetic waves.9. This is due to/is caused by/results from the fact that there are many free electrons in conductors.10. Besides/In addition to the fact that the properties of the material should be included in the analytical model, we must take other factors into account.III、1.These features make it difficult for electronic counter-measure systemsto intercept, analyze and jam this kind of signal.2. The existence of and the ability to control these phenomena make those devicespossible.3. The variation of/in the number of the filter’s teeth has a greater effect on the performance of its passband than the variation of/in its dimensions.4. Scalar detection will result in the loss of some phase information.5. Fig. 6 shows the schematic diagram of measuring scatter parameters by the natural parameter transformation method.练习10I、1. Now it remains to be determined when the series converges.2. It is clear from Dubamel’s Theorem that this limit exists.3. It follows from Maxwell’s hypothesis that whenever there is a change in an electric field, a magnetic field is produced.4. It does not matter whether the magnet is moved in this case.5. Temperature determines in what direction the transfer of heat will take place.6. It is now a well-known fact that all matter consists of tiny particles.II、1. What a generator does is (to) change mechanical energy into electrical energy.2. What this chapter describes/What is described in this chapter is of great importance.3. Matter is what can occupy space.4. What we have discovered in this experiment is the entirely new realm of electrical phenomenon.5. This direction is opposite to what has been assumed.6. Magnitude, direction, and place of application are what we call the three elements of a force.7. These numbers constitute what is known as the real number system.8. In what follows, we shall acquaint ourselves with some basic concepts.III、1. An x-band wave-guide test system is shown in Fig.7. [或：Fig. 7 shows …].2. This method lowers the requirement for the hardware of a sample network.3. On the basis of the above analysis of the decomposition of the polynomial, a novel configuration results. [或：The above analysis of the decomposition of the polynomial results in a novel configuration.]4. Finally, an analysis of packet loss probability is made by computer simulation.5. The sparse ratio of the resulting impedance matrix is as high as 40%.练习11I、1. The meter (that/which) we use to measure the voltage across a resistor is called a voltmeter.2. Computers are the most efficient assistants (that) man has ever had.3. Now this disease is no longer the serious problem (that) it once was.4. Radar can measure the time (that) it takes for the radio echo to return.5. We must calculate the distance (that/through which) the body is lifted.6. The direction (that/in which) a body moves is also very important.7. The number of times (that/by which) this particle vibrates per/a second is called/termed/named/known as/spoken of as/referred to as frequency.8. We equate these two ratios, from which the simplest formula follows/results.9. It is necessary to determine the time when/that/at which the y-component has decreased to zero.10.. The curve the y-coordinate of each point on which is zero is just the x-axis.II、1. The point at which the circle cuts the axis of reals is where α= ω.2. The force of gravity means the force with which the earth attracts a body.3. The surface of a picture tube upon which the electrons produce the picture is called the screen.4. The author would like to express thanks to the editors of the series of which this book is a part/to which this book belongs.5. This is a parallelogram of which the two given vectors are/form sides.6. The pressure is equal to the total force divided by the area over which it is exerted.7. The two elements of which water consists are hydrogen and oxygen.8. This depends on the efficiency with which electrons are produced.9. These two laws are the foundation on which all other laws are built.10. The temperature at which water freezes is generally 0o C.III、1. As the title indicates, this chapter will discuss nonlinear equations.2. As the name shows, a fluid is a substance which flows readily.3. This single force produces the same effect as is produced by those forces together.4. Now we are able to solve such differential equations as occur in physics.5. This function can be accomplished by using the full adder as was described in the previous section.6. These concepts enable us to understand a wide range of phenomena in electrostatics, or “static electricity,” as it is called.7. This current is, as predicted, very small,8. First let us consider the simplest circuit as shown on page 2.IV、1. This is a slightly higher value than we predicted.2. This reactor can produce more fuel than it consumes.3. Let us consider the case when the torque is zero.4. We must determine the values of currents and voltages after the switch closes.5. During the ten years since this book was first published, significant changes have taken place/have been seen in metal-making.V、1. Even in this case these protocols can provide a limited number of users with the acceptable quality of voice service.2. This paper presents a method for an 8098 microcontroller to series-communicate witha 386 personal computer.3. The effect of equalizer parameters on equalization performance is analyzed in detail.[A detailed analysis is made of the effect of equalization parameters on equalization performance.]4. Each receiver channel in Fig. 1 contains an RF amplifier, a mixer, an IF amplifier, an A/D converter, etc.（注意：句尾的句号与缩略词“etc.”的黑点重合在一起了）5. The larger the abnormal extent (is), the larger is the residual mismatch, with the curve going up.练习12I、1. be grounded;2. be carried;3. be raised;4. be;5. not try;6. be; be satisfied;7. be;8. be; was; have; 10. were concentrated; 11. had been; 12. were moving; 13. is going to rain; 14. be; 15. leakII、1. Should anything abnormal happen, switch/turn off the power supply at once/immediately.2. Had electronic computers not been used, it would have taken them a long time to solve this problem.3. It is very important that all solutions (should) be checked in the original equation.4. It is suggested that this design (should) be modified at once.5. Without semiconductors, satellite communications would be impossible.6. We could also have used Theorem (6) to derive the result.7. The requirement that energy (should) be conserved must be satisfied.8. Everything here, be it a component or a device, is home-made.III、1. It was this scientist who/that discovered this phenomenon a century ago.2. Tungsten is the very metal used in electric lamps.3. The speed with which sound waves move through a medium does depend on the properties of the medium.4. It is not clear yet under what conditions it is that this formula can be used.5. This property we call inertia.IV、1. The author is engaged in the teaching of and the research on computer vision, and image processing and recognition.2. Let P and Q be two Boolean permutations of the same order, and then their composition is a new Boolean permutation.3. Three algorithms are presented, which can remarkably reduce the time to raise the pen, thus raising the drawing efficiency.4. What this paper describes is of great interest to communications engineers.5. The minimum entropy technique for estimating the Doppler frequency rate is presented, which has the advantages over the classical techniques of high accuracy and a small amount of computation.练习13II、1. By electromagnetic force is meant the potential difference across the battery when there is no flow of current.2. In the table below/which follows are listed various parameters of familiar computers.3. An element cannot be decomposed, nor can it be broken up by chemical methods.4. Only when x = 8, does this equation hold/apply.5. Of particular importance/Especially important are the two concepts which follow.6. Such a set we call the mathematical system.7. Rarely does one know this function with precision.8. This interrelationship between electric and magnetic fields makes possible such things as the electromagnet and the electric motor.9. Not until 1818 was the diffraction of light interpreted/explained.10. By no means do electrons move from the positive terminal to the negative terminal ina wire.II、1. The effect of air resistance is discussed in Chapter 15, and the decrease in acceleration with altitude in Chapter 17.2. It is necessary to determine the charge on and the voltage across this capacitor.3. In this case, no standard is needed, but only a numerical convention.4. This voltage is greater than or equal to 0.4 volt.5. The cathode, when heated, emits electrons.6. Every body, whether accelerated or not, is considered (to be) in equilibrium.7. If necessary, the wire will be covered with some insulation.8. The transistor has its materials arranged p-n-p, hence the name pnp transistor.III、1. An initial analysis is made of the performance of the device.2. The magnetic field is the space around a magnet occupied by the magnetic lines of force.3. This leads to the battery voltage in the model of 500 mV.4. This graph shows the variation with frequency of the resistance of the resistor.5. This is responsible for the direct return to the atmosphere of more than half the water that falls on the land.6. The question now arises how these unknowns can be determined.7. It is necessary to determine the effect on the device of changing the ambient temperature.8. The assumption has been made that the pressure always remains constant during the test.IV、1. The simulation results show that both the schemes are easy to implement.2. The model and algorithm proposed in this paper are to a certain degree/extent superior in performance to the conventional BP algorithm.3. A new technique for estimating the frequency deviation is proposed which gives a high accuracy and requires a small amount of computation.4. Improvement of the accuracy of range alignment in ISAR imaging (by) using the super resolution technique5. Research on and the realization of DTMF in a Cipher Coder6. Analysis of the ability of a quartz flexibility accelerometer to resist bad environment。
