专业英语课后习题答案.doc

b-毗喘pyridine 巴比妥酸:barbituric acid 比电导conductance 不规则的:irregular 崩解剂disintegrantC--萃取extraction 成团:ogglomerotion 测量仪measurement 肠液:intestinol fluid d-胆固醇cholestero 对映体:enontiomer 电极electrode 代谢:metobolism f-反相渗透reverse osmosis 分布:dispositiong-构象：conformotion 固化:solidize卜-甲苯toluene 静脉注:introvenous injection 挤压:compress聚集:aggregate 胶囊capsuleI一粒子:particle 立体选择性:stereoselectivity 利用率:availability灭菌产品sterile products n—粘合剂odhesiveP—偏振光:polarized light 片剂tablet 酉己剂elixir 排泄:excretionq一起女台原料starting materials(raw materials) q 醛aldehyde「一溶解度:solubility 乳剂emulsion 润滑剂lubricants-释放:release 渗液solution 生物膜:biologic membrane 生物碱okoloid, t…糖浆syrup 甜味剂sweetenerw-丸剂pill 微生物microorganism 胃液:gastric fluid 稳定态:steady-statex-・旋光异构现象:optical isomerism 悬浮液suspension 香味剂flavor 稀释剂diluent 形状:shape 吸收absorption 消除:eliminationy-胰岛素insulin 压片:tablet compressionz-中间体intermediote 重结晶recrystallization 左旋:levorotation蒸徭distillation 组织tissuea-asymmetric carb on 不对称碳absorption 吸收action 动作odhesive 粘合剂c-contamination 污染chirality:手性compress 压缩composite 合成的compressibility:可压缩性compaction:压紧contaminotion specialize 特殊污染conductivity 电导率control控制clinical:临床的d- design:设计dry:干燥delivery:传送e-巳xtgnd:延长epoxide:环氧化物f- formulation:$ij 剂fluidity:流动性function:功能g- geometric isomerism:几何异构h- hormone 激素hydrolysis diastereoisomer:水解非对映异构体heterogeneous catalyst 多相催化剂，i- irrigating 冲洗m- metabolite代谢物medication药物治疗medicine内服药mill:研磨measure 尺寸mix:混合microorganisms 微生物o- ophthalmic 眼药p- polysaccharide 多糖peptide 肽plosmo 血浆penicillin 青霉素，precursor:前体partition coefficient:狭义分配系数pharmaceutical 制药的parenteral 注射药物pycogens 热源procedure:程序q- quality 性质quantity 数量s- steroid 笛类steric effect:空间效应stereoselectivity:^体选择性screening:过筛sustain :维持t-- treo t 治疗therapy:治疗u-uniformity 目标v-vaccine 疫苗Unitl P71、Answer the following questions:(1) How mony groups can pharmaceutical agents be split into depending on theirproduction or origin?©totally syn thetic materials (synthetics) ® na tural produ cts® produ cts from partial syn theses (semi-sy nthetic products)(2) CQn you illustrate ony sign ificant examples of pharmaceutical agents obtained by total synthesis?L-aminexhleramphomicalxaffeine^opamine^Epi nephrine,Lerodapa,peptide,hormones.Prestaglandi ng, P_Pouricollamine z Vincamine,(3) What is the difference between the synthetic drugs and traditional Chinese herbal medicine?synthetic drugs include the most import ant of synthetics and semi-sythetic products, however, natural products are frequently needed as starting materials or intermediates for important synthetic products.2s生物碱4、Introduction of Nucleic acidsNucleic acids ore polyanionic molecules of high molecular weight. These polymers are composed of a sequence of subunits or nucleotides so that the whole is usually termed a polynucleotide・ The nucleic acids are of two main varieties, rib on ucleic (RNA) ond deoxyrib on ucleic (DNA). DNA is fou nd primorily in the chromatin to the cell nucleus, whereas 90% of RNA is presented in the cell cytoplasm and 10% in the nucleolus. The two classes of nucleic acids are distinguished primary on basis of the five-carbon atom sugar of pentose present. Two general kinds of bases are found in all nucleic acids. One type is a derivative of the parent compound purine・ Principle examples are guanine and adenine. The second class of bases found in all nucleic acid is derived from the pare nt compound pyrimidine ・介绍核酸核酸是超高分子量聚阴离子分子。

专业英语课后习题答案Chapter1I. 1.Application software2. -128 1273. system software4. hardware system software system5.microcomputers, minicomputers, mainframe computers, supercomputersII. 1. false 2. false 3. false 4. true 5.trueIII. (1) b (2) c (3)a (4) dIV. (1)编码技术(2)应用软件(3) 浮点数据(4)分时(5)存储容量VIII．1.By using various coding techniques, groups of bits can be made to represent not only binary numbers but also other discrete symbols通过应用多种编码技术，一组二进制数字不但可以表示二进制数据，而且还可以表示其它的离散符号2.System software includes not only the complex programs used by technicians to create application software in the first place but also the organizational programs needed to start up the computer and govern its use of other programs.系统软件不仅包括技术人员用于创建应用软件的复杂程序，而且还包括用于启动计算机和提供给其他程序使用的管理程序。

3.Data are numbers and other binary-code information that are operated on to achieve required computational results.数据是数字和其他的二进制代码信息，通过处理这些数据得到所需要的计算结果。

Unit 7 P56I、Translate the following words into Chinese1、Reinforced concrete钢筋混凝土2、Rolled-steel轧制钢3、Weldability可焊性4、Aggregate骨料5、Mortar砂浆6、Deformation变形II、Translate the following words into English1、冲击荷载shock loading2、软钢，低碳钢mild steel/low carbon steel3、冷拉hard drawn4、黏土砖clay brick5、收缩shrinkageIII、Translate the following sentence into Chinese1、The modern civil engineer needs to deal with a variety of materials that are oftenintegrated in the same structure , such as steel and concrete , or are used separatelyfor construction projects , such as pavement form asphalt and Portland cementconcrete.现代土木工程师需要处理大量建筑材料。

有时多种材料使用在同一结构中，如钢筋和混凝土；有时建筑材料被分别使用在单独的建筑项目中，例如沥青路面和硅酸盐水泥混凝土。

2、The useful engineering properties of both unalloyed and allyed aluminum are lowspecific gravity , resistance to corrosion , high electrical conductivity and excellentforming properties.铝和铝合金的有用的工程特性都是低比重，耐腐蚀，导电性能高和成型性能好。

大学专业英语教材答案[注意：本文仅作为样例，内容为编者根据问题描述自行创作，与真实教材答案无关]Unit 1: Introduction to MajorExercise 1:1. c. program2. b. experience3. a. theory4. d. practical5. c. valuableExercise 2:1. major2. education3. career4. opportunities5. specializedUnit 2: Academic SkillsExercise 1:1. d. summarize2. b. analyze3. c. evaluate4. a. interpret5. a. developExercise 2:1. analytical2. critical thinking3. research4. academic writing5. effective communicationUnit 3: Professional Development Exercise 1:1. d. networking2. a. internships3. c. workshops4. b. mentorship5. a. leadershipExercise 2:1. professional skills2. industry trends3. internships4. networking events5. career guidanceUnit 4: Specialized Courses Exercise 1:1. b. algorithms2. c. databases3. d. programming languages4. a. cybersecurity5. c. artificial intelligence Exercise 2:1. practical application2. cutting-edge technology3. hands-on experience4. specialized knowledge5. problem-solving skills Unit 5: Global Perspective Exercise 1:1. c. cultural diversity2. a. international cooperation3. d. global challenges4. b. language proficiency5. c. cross-cultural communication Exercise 2:1. international exposure2. intercultural competence3. global issues4. language proficiency5. cross-border collaborationUnit 6: Advanced Research Exercise 1:1. a. methodology2. c. data analysis3. b. literature review4. d. research findings5. a. hypothesesExercise 2:1. research design2. data collection3. statistical analysis4. research findings5. academic publicationsUnit 7: Career Prospects Exercise 1:1. b. employment opportunities2. a. job market3. d. professional qualifications4. c. salary expectations5. b. career progression Exercise 2:1. job prospects2. industry demand3. professional certifications4. salary negotiations5. career advancement总结：大学专业英语教材提供了学生在各个领域中提升专业技能和知识的机会。

大学专业用途英语课后习题答案1. You'd better ( ) a copy of the whole article for yourself. [单选题] *A. make(正确答案)B. makingC. to makeD. made2. He is very strict. It is no use ( ) yourself to him. [单选题] *A. explainedB. to explainC. explaining(正确答案)D. explain3. All people must pull together ( ) the project can be finished on schedule. [单选题] *A. as thoughB. ifC. even thoughD. in order that(正确答案)4. I wish I ( ) shopping with you yesterday, because I was very bored at home then. [单选题] *A. had gone(正确答案)B. would goC. could have goneD. went5. If ( ) in a warm place, these flowers will bloom in late May. [单选题] *A. to plantB. planted(正确答案)C. plantD. planting6. My father recommended two new books to me, ( ) seemed to be very interesting. [单选题] *A. both of thatB. all of thatC. both of which(正确答案)D. all of which7. Tom will never forget the days ( ) he lived in the remote village with his parents. [单选题] *A. whatB. whichC. when(正确答案)D. why8. Don't expect too much from her. The more you expect, ( ) you will become. [单选题] *A. the disappointedB. more disappointedC. the most disappointedD. the more disappointed(正确答案)9. The weather is quite fine. Let's go swimming, ( )？ [单选题] *A. will youB. shall we(正确答案)C. do weD. do you10. There is no doubt that the residents living in this building can have free ( ) to the swimming pool. [单选题] *A. excessB. access(正确答案)C. accelerateD. assess11. If you want to strengthen your friendship with your friends, you should ( ) more time communicating with them. [单选题] *A. spend(正确答案)B. takeC. payD. cost12. Tom has been nervous for three days, since he will have a(n) ( ) for the manager's job. [单选题] *A. reviewB. viewC. chatD. interview(正确答案)13. But for your advice, I ( ) the task arranged by the leader yesterday. [单选题] *A. shall not finishB. could not have finished(正确答案)C. shall finishD. could finish14. The aim of this meeting is ( ) how to solve the serious crisis. [单选题] *A. to discuss(正确答案)B. discussingC. to discussingD. discussed15. This building is named ( ) his name in memory of his great invention. [单选题] *A. upB. after(正确答案)C. atD. in16. ( ) are quite humorous and everyone likes making friends with them. [单选题] *A. The Bushes(正确答案)B. A BushC. BushesD. The Bush17. One way to manage time wisely is to give ( ) to what is the most important. [单选题] *A. principleB. permissionC. priority(正确答案)D. process18. The teachers don't know ( ), because the meeting rooms are being decorated. [单选题] *A. where should the meeting be heldB. which should the meeting be heldC. which the meeting should be heldD. where the meeting should be held(正确答案)19. Due to the outbreak of the epidemic, many outdoor activities have been ( ). [单选题] *A. called forB. called off(正确答案)C. called backD. called in20. According to the report, some experts ( ) the shop with selling cups with insulting ads. [单选题] *A. charge(正确答案)B. accuseC. blameD. condemn21. Some people ( ) it for granted that what they pick up in the street belongs to them. [单选题] *A. makeB. take(正确答案)C. getD. regard22. Because there is enough time, the teacher advises students ( ) their papers again. [单选题] *A. examinedB. to examine(正确答案)C. to examiningD. examine23. Many people suffer from hunger in this country ( ) the decrease of food imports this year. [单选题] *A. instead ofB. regardless ofC. due to(正确答案)D. as to24. I ( ) reading the novel by yesterday, so I buy a new novel today. [单选题] *A. had finished(正确答案)B. finishedC. finishD. would finish25. Most foreign people think ( ) very difficult to learn to write Chinese characters. [单选题] *A. thatB. thisC. it(正确答案)D. one26. Mary heard her name called by someone, whose voice was very familiar ( ) her. [单选题] *A. withB. to(正确答案)C. onD. in27. One ( ) of extra-curricular activities is that the kids involved can gain friendship. [单选题] *A. flexibilityB. benefit(正确答案)C. privilegeD. interest28. I will tell the truth to him if he ( ) the funeral the day after tomorrow. [单选题] *A. would attendB. will have attendedC. attends(正确答案)D. will attend29. His ( ) of the accident conflicted with that of the other witnesses. However, I believed what he said was true. [单选题] *A. expectationB. instructionC. responseD. account(正确答案)30. Every time I run into difficulty, he is always the first ( ) help. [单选题] *A. to be offeredB. to offer(正确答案)C. offerD. offering31. Many women have to resign in order to ( ) their children wholeheartedly. [单选题] *A. bring up(正确答案)B. put upC. break upD. build up32. My good friend Lily told me that she ( ) to New York the next month. [单选题] *A. wentB. goesC. would go(正确答案)D. will have gone33. It is natural that people ( ) feel upset for no reason. It usually won't last too long. [单选题] *A. sometimes(正确答案)B. some timesC. a timeD. some time34. Our company wants to invest in the property market, so we look forward to ( ) with that company. [单选题] *A. cooperateB. cooperating(正确答案)C. cooperatedD. being cooperated35. It is really ( ) to borrow money from your elder sister just to help a selfish stranger pay off his debt. [单选题] *A. ridiculous(正确答案)B. stubbornC. splendidD. popular36. The kids in the kindergarten help each other and never quarrel, thus creating a ( ) atmosphere. [单选题] *A. commonB. lonelyC. peaceful(正确答案)D. steady37. You ( ) to make so many preparations; the job has been assigned to an experienced fellow. [单选题] *A. needn't have bothered(正确答案)B. shouldn't have botheredC. mustn't have botheredD. couldn't have bothered38. ( ) in the park yesterday afternoon, my mother met an old friend. [单选题] *A. To walkB. Walking(正确答案)C. WalkD. Walked39. Mary behaved in a specially confident manner ( ) she had understood the problem completely. [单选题] *A. as if(正确答案)B. whetherC. althoughD. than40. As we all know, success results from hard work; ( ) efforts, nothing can be achieved. [单选题] *A. except forB. without(正确答案)C. despiteD. besides41. His advice is that your father ( ) more exercise outdoors in the morning. [单选题] *A. doneB. will doC. should do(正确答案)D. does42. From this book, you can know ( ) those animals escape from their natural enemies. [单选题] *A. whoB. how(正确答案)C. whereD. it43. Plants are very ( ) to climate change. Therefore, many tree species are faced with extinction because of global warming. [单选题] *A. sensibleB. consciousC. sensitive(正确答案)D. independent44. His two dogs made a mess in his room, ( ) he didn't want to punish them. [单选题] *A. andB. orC. becauseD. but(正确答案)45. Hearing the words, he didn't seem to be offended; ( ), he looked very happy. [单选题] *A. in a wordB. in other wordsC. on the wholeD. on the contrary(正确答案)46. ( ) the salary is rather low, many young people have resigned in recent months. [单选题] *A. Because(正确答案)B. ForC. AfterD. So that47. What the little girl wants ( ) a pen, and what her elder brother wants ( ) two books. [单选题] *A. are; areB. is; isC. is; are(正确答案)D. are; is48. Most universities don't ( ) that every student can graduate with a certificate if they don't study hard. [单选题] *A. guarantee(正确答案)B. provideC. requireD. complete49. The company has recently taken on fifty people ( ) live in the local area. [单选题] *A. whichB. whoseC. thoseD. who(正确答案)50. All the afternoon my colleagues and I ( ) a report in the meeting room. [单选题] *A. prepareB. were to prepareC. have been preparing(正确答案)D. had been preparing5I. It is no use worrying about the future all the time. No one knows what will ( ) next minute. [单选题] *A. take placeB. get onC. disappearD. happen(正确答案)52. Alice, please turn down the music. I ( ) an important phone call at present. [单选题] *A. answerB. answeredC. have answeredD. am answering(正确答案)53. After you use my dictionary and English book, you should place them ( ) they used to be. [单选题] *A. the momentB. where(正确答案)C. whenD. that54. ( ) runs the fastest in the competition will be given an expensive prize. [单选题] *A. Whoever(正确答案)B. WhomeverC. WhomD. Who55. If you want these new employees to work out the answer, two hours and a half ( ) not enough. [单选题] *A. to beB. beingC. areD. is(正确答案)56. Only after they had examined the machine for several hours ( ) the problem. [单选题] *A. they foundB. did they find(正确答案)C. they findD. do they find57. ( ), he doesn't know how to get on with other people. [单选题] *A. Adult as he is(正确答案)B. Adult he is asC. Adult he as isD. An adult as he is58. It was ( ) that they went for a picnic in the park last weekend. [单选题] *A. so nice a weatherB. such nice weather(正确答案)C. nice weather soD. too nice weather59. It is advisable to adjust the measures on the ( ) of short-time predictions. [单选题] *A. basis(正确答案)B. baseC. foundationD. ground60. ( ) slowly he runs! I don't think he may attend the lecture on time. [单选题] *A. WhatB. ItC. How(正确答案)D. Whether。

练习一参考答案1将下列句子或段落翻译成英语1)A process is any operation or series of operations that causes a physical or chemical change in asubstance or a mixture of substances .The material that enters a process is referred to as input or feed the process,and that which leaves is called output or product.2)As a chemical engineer,you might be called on to design individual process units (such as reactors,distillation columns,heat exchangers),supervise the operation of a process,or modify a process design to accommodate a change in the feed or in the desired product characteristics.As a rule,to any of these things you must know the amounts,compositions,and conditions of the materials that enter and leave each process unit,and if you are working with an existing units,you must be able to measure enough of these quantities to verify that the process is doing what it was designed to do.3)Founded in 1839from a small production firm for pharmaceutical products,B.Braun has grown steadilyinto a multinational company dealing with medical products,medical technology,pharmaceutical and biotechnology.2将下列句子或段落翻译成汉语1）包括的一系列操作，如混合、蒸发、过滤，无论产物是什么，这些操作都基本同，从而导致了单元操作的概念。

Unit 1 The Fundamentals of Computers1.1The Varieties of Computers•IIL Translating.- 1. Original: Primary storage, or memory, is the internal computer circuitry that temporarily holds data waiting to be processed. Secondary storage, simply calledstorage, refers to the devices and media that store data or information permanently ・-Translation: 一级存储，或称内存，是临时保存等待被处理数据的计算机内部电路。

而二级存储，简称存储器，是指那些永久性存储数据或信息的设备和介质。

一2. Original: A biological nanocomputer, which would be made of DNA and could fit into a single human cell, would use DNA as its software and enzymes as its hardware;its molecular-sized circuits would be viewable only through a microscope.-Translation:由DNA制成并能放置在一个单独的人体细胞屮的生物学纳米计算机会利用DNA作为它的软件，酶作为它的硬件；其具有分子大小尺寸的电路将只有通过显微镜才能够看见。

1.2The History of Computers•III. Translating・- 1. Original: This introduction brought about the first real signs of competition within computing history, which helped to spur faster and better development of computers.-Translation:这一引入带来了计算历史屮可谓第一个真正的竞争标志，有助于刺激计算机更快-更好的发展。

unit 6EmploymentWord Bankass: n. hip (top<->bottom<->margin)臀部; hip-shoot莽撞(audio-:与听力有关->) audition(interview: n./vt.-> interviewer<-> interviewee; trainer教练<->trainee受训者; addresser演讲人<->addressee听众)；employer雇主<->employee雇员): v. to take part in a trial performance试演，试播(push) cart->carriage/coach; auto-: 自动-> (auto + mobile->) automobile汽车; alto): n. the biography written by that person自传buyout: n. the entire purchase全部买下campaign: n. series of operations运动/ movement(celebrate->) celebrity: n. a famous person名人(circle园->cycle周期->recycle回收->circulate->) circulation: n. the number of copies of a publication发行量; public: (1)adj. ~property; (2)n., e.g. in public公开地；publicate =publish出版cognac: n. a brandy produced in the vicinity of cognac一种法国白兰地convention: n. (1)a formal meeting会议; 制度->conventional: adj. traditional传统的copywriter: n. one who writes copy, especially for advertising广告(文案)撰稿人；copier复印机; copyright版权(co + operate->) corporate (->corporation协作): adj. of a company公司的; student version 学生版; home version, professional version, corporate version企业版corporation: n. a company as a separate legal entity公司，法人[de-：(1)向下; (2)加强] dejected: adj. being in low (high) spirits; depressed垂头丧气的，情绪低落的; the Great Depression大萧条[monitor: (1) n. 班长/ 监视器；（2）监控] deputy: n. an assistant of authority for the superior 副手[despair: (1)n.; (2)vi.->] desperate: adj. losing all hope; despairing绝望的fold: v. to fail 失败formidable: adj. fearful; frightening可怕的，难对付的; be frightened be sth.(humiliate->) humiliation: n. degradation羞辱模糊的，难辨的: adv. (attention注意力) not attentively; carelessly未留心地，疏忽地nonprofit: adj. not seeking profits非盈利的; profit from sth.从中获利；profit sb.对…有利outsource: v. to subcontract外包: adj. excessively enthusiastic (->enthusiasm)过分热情的退休金，抚恤金激烈，e.g. ~ competition激烈的竞争) persevere: v. persist; hold on坚持不懈出版物rally: v. to reassemble; to restore , to rouse or to revive重整，重振；assemble组装->assembly lineretrospect: n. a review回顾评论; Peking Review北京周报ruse: (=trick) n. a strategy (->strategic missile战略导弹)诡计，计策;(secret: n. ->secretary->) secretarial: adj. of the secretary秘书的shorthand: n. a system of rapid handwriting速记; be short of sth. 短缺speedwriting: n. a form of shorthand that uses letters速记法temporary (->temporarily暂时地): adj. lasting for a limited time暂时的tenacity: n. perseverance坚韧(turbine涡轮->) turbulent: adj. restless; violent骚动的，动荡的Phrases and Expressionsbe on the air: to broadcast广播[On air]head for (make for / go to somewhere): to proceed for动身，前往keep sb. in line: to control sb.控制某人stand on sb's own (=self-rely): to be independent and responsible for oneself独立，自立thanks to: on account of; because of因为，由于Reading ComprehensionChoose the best for each of the following.1. Right after graduation, the author ( B )A. worked as an editor of a magazineB. co-wrote a bookC. worked in a broadcasting companyD. became a secretary2. Why was the author fired? ( C )A. Because she had illegible handwriting.B. Because she had the ass of the company heads in four colors.C. Because she made a mistake when writing letters to the heads of major corporations.D. Because the editor didn't like her.3. Sherrye Henry lost the job because ( A )A. the organization had financial troublesB. she worked for Clinton AdministrationC. she was the last one inD. she was a female4. Which of the following statements is NOT true about Lynn Sherr? ( D )A. She was ABC's award-winning television correspondent.B. She was gainfully employed at WCBS-TVC. She was fired by WCBS.D. She has never been on the air.5. What does the author hope to convey in the article? ( A )A. If fired, don't give up, and you will find a fulfilling career.B. If fired, you should find a way back.C. If fired, your wings will help you.D. Losing a job is the biggest trouble in one's life.II. Complete the following summary of the text by filling in the blanks with words. The initial letter of each word has been given to you.(1) Fresh out of Barnard College and the Speedwriting Institute (Department), I was lucky enough to find a job as a (2) secretary to the editor of Coupon Magazine which was advertising dependent. I had distinctly illegible handwriting. In a letter to one of the heads of a major corporation, I (3) mistakenly wrote the d in ads as an s. The president who was invited received the letter to "have his ass in four colors" in our (4) publication. I was fired, but lucky enough to become the (5) copywriter of the editor. Firings happened later in my life. But with persistence, I gained my success. (6) Similar experiences happened to Sherrye Henry, Paul Jones, and Lynn Sherr. All of them chose to (7) persevere and they finally found ways back to a (8) fulfilling career. And they all learned that the pain and humiliation were (9) temporary. So don't be afraid to move on and try your (10) wings. Rally your support system. Firing doesn't mean your life is over. It might turn out to be the best thing that ever happened to you.VocabularyI. Choose the answer that best completes each sentence.1. ___A__ your advice (->advise), much trouble was avoided.A. Thanks toB. Supposes toC. SinceD. Despite2. She was __C___ in (pursue->) pursuit (law suit诉讼案) of her singing star. She followed him on most occasions.A. excessive过度的B. spontaneous同时/ 及时的C. overzealous 可得到的A. illegibleB. illegalC. obviousD. understandable4. By the way, I __B___ really must correct a false impression that I gave just nowA. attentively关切地B. inadvertently=carelessly (不注意的, 疏忽的, 无意中做的)C. intentionally=on purpose故意地D. insensibly不明智地5. The magazine has ceased (#stopped; cease fire# stop fire) __C___ in the financial crisis.A. publicity (n. 宣传->publicize: vt.)B. (promote->加薪/晋级->) promotionC. publication (n.)D. (prominent卓越的, 显著的, 突出的->) prominence (n.)6. Grandpa, who was born at the dawn (n. /vi. 黎明) of last century, experienced one of the most ___A__ periods of history.A. (turbine->) turbulentB. practical实用的C. legendary (adj.)富有传奇色彩的; leonovoD. perfect完美无缺的7. History shows us with what ___B__ the human race survives.A. difficultyB. tenacity坚韧不拔C. trouble (n. /vt.)D. [find->found->found; found->founded->founded->] foundation (基础)8. Prisoners are purposefully and ___D__ occupied (busy), thus reducing (减少) the risk of unrest (骚动). It also helps them develop (养成) the habit of doing meaningful work.A. pleasantly (令人愉快地)B. adversely (不利的, 敌对的, 相反的)C. (destructively<->) constructively建设性地D. gainfully有益9. One's school life seems (happy->) happier in __A___ than it really was (比实际情况好).A. retrospectB. respect (n./vt.)C. (solve->solution->solvent溶剂->resolve下决心->) resolution决心D. (resist->) resistance抵制10. He hasn't decided whether to pursue the __B___ for the senate (参议院-> senator参议员).A. operationB. campaignC. (war->) battle战役D. movement运动II. Fill in the blanks with the words or phrases given below. Change the form where necessary. persevere rally temporary stand on one's owncelebrity humiliation convention be on the air foldtenacity head for desperate impartdeject campaign1. They are determined to (=decide to do) persevere in the fight no matter how hard (=difficult) it is.2. After negotiation, they just reached a temporary agreement.3. That program has been on the air for 10 years.4. He is the one who never folds (fails/ bends in/ gives in屈服于压力) under pressure.5. He suffered (蒙受经济损失/ 遭受精神折磨, ~from an illness/ great loss of money) the humiliation of being forced to resign (辞职).6. After the football game, the players (=sportsmen/ athletes) headed for the bus.7. At the recent convention (meeting/ conference), the Democratic Party has elected its presidential (candle->) candidates ().8. They made a desperate attempt (try孤注一掷) to save the company from bankruptcy [->bankrupt 破产的; prevent sb. from doing阻止某人做某事]9. In the long (hike->) hiking (长途跋涉), they paused to refresh (relax) themselves and rally (重整旗鼓) their strength.10. A teacher's aim is to impart (传授convey) knowledge.TranslationPut the following paragraphs into Chinese.Sherrye, returning home to New York City after a successful political career with the Clinton Administration and working on the Hill, was looking forward to a change of pace as a development officer for a large nonprofit. When the organization hit turbulent financial water, and she was the last one in, she was the first one out.Each of these people found a way back to a fulfilling career. And they all learned that the pain and humiliation are temporary. So don't be afraid to move on and try your wings. Rally your support system. Persevere! Firing doesn't mean your life is over. It might turn out to be the best thing that ever happened to you.参考译文：雪莉成功地在克林顿政府任职，在国会山工作之后回到家乡纽约市，在一家大型非营利机构做开发主管，她期望以此放缓工作节奏。

1. Put the following into Chinese.（1）Ohm’s law states that the voltage across a resistor is directly proportional to the current flowing through the resistor. The constant of proportionality is the resistance value of the resistor in ohms.流过电路里电阻的电流，与加在电阻两端的电压成正比，与电阻的阻值成反比。

这就是欧姆定律。

（2）Many materials, however, closely approximate an ideal linear resistor over a desired operating region.不过，许多材料在规定的工作范围内非常接近理想线性电阻。

（3）It should be noted that an ideal voltage source (dependent or independent ) will produce any current required to ensure that the terminal voltage is as stated, whereas an ideal current source will produce the necessary voltage to ensure the stated current flow.应该注意：一个理想电压源（独立或受控）可向电路提供任意电流以保证其端电压为规定值，而电流源可向电路提供任意电压以保证其规定电流。

（4）A different class of relationship occurs because of the restriction that some specific type of network element places on the variables. Still another class of relationship is one between several variable of the same type which occurs as the result of the network configuration, i. e., the manner in which the various element of the network are interconnected.一种不同类型的关系是由于网络元件的某种特定类型的连接对变量的约束。