专业英语练习卷 A
化学专业英语试卷A
2013—2014学年度第一学期 应用化学专业《专业英语》课程试卷（A ） 注意事项：1. 考生务必将自己姓名、学号、专业名称写在指定位置； 2. 密封线和装订线内不准答题。
一、词汇填空 （写出下列每个词汇对应的英汉单词）（共20小题，每空1分，共20分） 1、原子 （ ） 2、化学性质 （ ） 3、密度 （ ） 4、元素 （ ） 5、熔点 （ ） 6、沸点 （ ） 7、共价键 （ ）8、电负性 （ ） 9、硫 （ ） 10、 钾 （ ） 11、 氧气 （ ） 12、 氮气 （ ） 13、 挥发 ( ） 14、 chlorine （ ） 15、 phosphorus （ ） 16、 aluminum （ ） 17、 noble gas （ ） 18、 silver （ ）19、 lead （ ）20、 copper （ ）二、给下列无机化合物的英语名称（共10小题, 每小题2分，共20分）1、HCl 2、HClO 3、CuSO 4 4、H 2SO 4 5、ZnSO 4 6、Ca(OH)2 7、H 3PO 4 8、NaOH 9、 KF10、 FeCl 3二、给下列有机化合物的英语名称（共5小题, 每小题4分，共20分）1. 氯苯2. 吡啶3. 苯酚4. CH 3CH ＝C(CH 2CH 3) CH 2 OH5. (CH 3)2CCH 2CH 2OH三、英译汉（共10小题, 每小题4分，共40分）1、Compounds that contain carbon-metal bonds are called organometalliccompounds.2、The natures of the carbon-metal bonds vary widely, ranging from bonds that areessentially ionic to those that are primarily covalent.3、Organometallic compounds of lithium and magnesium are of great importance inorganic synthesis.4、In a distillation, a liquid is heated to the temperature at which it changes to avapor.5、In general, unless the boiling point of the two liquid differ by more than 70-100℃,a simple distillation apparatus is inadequate to separate them.6、The separation of the components of a liquid mixture by treatment with a solventin which one or more of the desired components is preferentially soluble isknown as liquid-liquid extraction.7、Leaching refers to the extraction of a soluble constituent from a solid by means ofa solvent.8、The highest degree of separation with a minimum of solvent is attained with aseries of countercurrent stages.9、Though used as a physical-chemical process over a long period it is only over thelast three decades that adsorption has developed to a stage where it is now a major industrial separation process.10、On both large and small scale crystallization is the most important methodfor the purification of solid organic compounds。
计算机专业英语期末试题及答案A
信息工程学院学院计算机专业英语课程期末考试试卷A一、Translate the following words and expressions into Chinese.(写出下列词组汉语思) (10分每题1分）1。
bandwidth:2.browser：3。
command button：4。
Control Panel：5。
data structure：6.fiber-optic table：7。
hardcopy：8．hypermedia:9．information superhighway：10。
high-level language：二、Match the following words and expressions in the left column with those similar meaning in the right column。
（将左列的词汇与右列相应的汉语匹配.) （10分每题1分)1。
HTTP: a . 数据库管理系统2。
ISP : b。
应用程序设计接口3。
SQL ： c 。
基本输入/输出系统4.WWW：d。
数字视频光盘5.DBMS：. e .互联网服务提供商6.BIOS: f 。
中央处理单元7。
API ：g 。
结构化查询语言8.DVD：. h .直接存储器存取9.DMA ：i .超文本传输协议10。
CPU ：j .万维网三、Tell whether the following statements are true(T）or false（F) according to the passage A（根据下文的内容判断下列句子的正误）（15分每题3分）Passage A：For a Web user, the home page is the first Web page that is displayed after starting a Web browser like Netscape's Navigator or Microsoft's Internet Explorer。
北京邮电大学《专业英语A》2023-2024学年第一学期期末试卷
A．a sacred cow B．a Herculean task C．a Pandora's box D．a child's play 7、“Could we put off the meeting？” she asked.“________.” He answered politely. “This is the only day everyone is available.”Array A．Not likely B．Not exactlyC．Not nearly D．Not really8、Any information of the oral test paper are regarded as strictly ______ before it is open. A．conventional B．analyticalC．controversial D．confidential9、The boy the first prize, but he was so careless as to make a foolish mistake. A．must have gained B．need have gainedC．could have gained D．shall have gained10、_____ working ability，you are no worse than the others，it is just you who don’t put your heart in your work．A．In favor of B．In honor of C．In terms of D．In case of第二部分阅读理解（满分20分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
AMy wife, daughter, and I moved into our home nine years ago and we spent a lot of time and energy in the yard to get it looking like the way it does today. We live on a corner, higher than street level, and the entire side of the yard is surrounded by a professionally built rock wall. The front of the house though is another story because instead of a wall along the sidewalk, the rocks appear to be just thrown up onto the dirt as if someone were in a hurry to finish.We did the best we could with what we had to work with and called this area our “rock garden”. Whenever we had leftover flowers or plants, Denise or I would stick them out front, just to bring some color to the area. We would do all of the yard work on our own, even the tiring weed-pulling.Last summer I had reached the end of the rock garden and found a tiny little plant that I could not immediately identify, I knew I didn’t plant it and Denise claimed that she didn’t either. We decided to let it continue growing until we could figure out what it was.Weeks passed and as I made my way back to the mystery plant, it appeared to be aSunflower with a tall skinny stalk（茎，杆）and only one head on it. I decided to baby it along andweed around it. As I pulled rocks from the area to get to the weeds, I noticed something unusual. Array The Sunflower had not started where I saw the stalk begin. It actually had begun under a big rock and grown under and around it to reach the sun.That’s when I realized that if a tiny little Sunflower didn’t let a big rock stand in its wa y of developing, we too have the ability of doing the same thing. Once our environment begins to see that we believe in ourselves like that little Sunflower, we can attain the same nourishment（营养）and growth as well.Stand tall like the Sunflower and be proud of who and what you are and the environment will begin to support you. You will find a way to go under or around your big obstacle in order to reach your desires.1、We can know from the first paragraph that ______.A．the author finished building his home hurriedlyB．the author’s family have lived in this home for nine yearsC．the author’s home is made of rock wallsD．there is a wall along the sidewalk2、The author found it unusual that ______.A．the mystery plant turned out to be a SunflowerB．the Sunflower had a tall stalk and only one headC．the Sunflower grew under and around a big rockD．the Sunflower had started where the stalk was seen3、Which of the following best describes the Sunflower?A．Brave and stubborn B．Confident and persistentC．Optimistic and modest D．Mysterious and devoted4、What can be inferred from this passage?A．Human beings are able to remove obstaclesB．The universal truth made the sunflower surviveC．A big rock blocked out the sunlight of the sunflowerD．We can achieve success as long as we are self-confidentBOne evening at a busy crossroads, I noticed a sister struggling to keep her little kid under Array control while she talked on the pay phone. She wanted him to stay still next to her, but he wanted to run and play by the road, close to rushing buses and taxis. One could sense the woman’s frustration, that she was pulled in too many directions: She was angry at the person on the telephone and shouting at the younger that she would “snap（折断）his leg” if he moved again. As I waited for the traffic light to change, the child began to complain and struggle to free himself from the woman’s grasp. She dropped the phone, seized（抓住）the neck of his tiny. T-shirt and gave him a back-hand blow across the face that I know made his little head spin.The light changed, and passers-by continued on their way. But I stood there, fixed to the pavement. I knew this extremely upset woman would carry through on her threat of violence to the child. Before, I had wanted to get close to her and offer to watch the youngster while she dealt with the troubling situation on the phone. Now I wanted to comfort the little boy. I also wanted to speak to the sister to calm her and to caution（告诫）her, as I wish someone had cautioned me when I was passing my pain on to my daughter and causing her emotional suffering. But I was chicken. I thought, she may think I’m out of line, or I may be her next target.Oft en I’ve thought about that child and the many others abused（虐待）by adults. I wonder how they will internalize（使……藏在心底）their pain, and if it will crush their spirits. Will this little boy grow up to be an abusive man? Will he be gloomy（阴郁的，沮丧的）and withdrawn （孤僻，内向的）? Will he find it hard to communicate with women, with other men? Or will he survive and be sensitive, caring and determined not to continue the cycle?There is too much cruelty（残忍）in the world, too much cruelty between people. I tremble at the increasing verbal（言语的）bitterness and violence among Black girls, and among young mothers trying to discipline their children. This behavior isn’t class-or age-related: I hear sharp words from Black women from all walks of life who are overworked and stressed out and have grown impatient. At times I, too, become impolite to others, or, like the sister on the phone, strike out at（抨击）those closest to me.Often we’re tired because we've made the wrong choices. Young girls who still need mothering are loaded with ch ildren. We sisters easily get hurt and annoyed when we don’t compromise with our own sense of self. Our personal fulfillment requires knowing what is bestfor us, setting our boundaries（界限）and keeping them undamaged. We will always be asked todo more than we are comfortable doing. When we know our boundaries, we can decline Array comfortably. People—and we ourselves—will act in ways we don’t like. But they, like us, are still worthy of love.Whatever irritates（激怒）us about a person should be examined. Is the person reflecting behavior in us that needs to be changed? Often, when I find people irritating, I find they mirror something about me that I need to correct.What’s needed in our personal relationships is a return to gentleness and tolerance（容忍）. We must allow one another our learning experiences. Just as violence results to violence, verbal violence—the hard words and sharp tones we use to release inner stress—adds to the distance between us.What we people of African root must do to become, and continue to be strong begins with love, sensitivity and our ability to work together. We Black women have these spiritual resources in abundance（丰富）. Now we must encourage them to create a peaceful place—for ourselves, our children, our men.1、We can learn from the passage the mother of the little kid must be ________. A．frustrated and hot-tempered B．cruel and talkativeC．confused and quick-minded D．considerate and sensitive2、By saying “She may think I am out of line”, the author meant the woman might say ________. A．“You’re not standing in the queue.”B．“You can watch and comfort my kid.”C．“Walk away. It’s none of your business.”D．“You are walking in the wrong direction.”3、The wrong choices the author mentions in Paragraph 5 include ________.a. We sisters refuse to marry youngb. We aren’t satisfied with ourselvesc. We have our boundaries damagedd. We decline others’ requests for helpA．a, b B．c, dC．a, d D．b, c4、According to the author, when we find a person irritating, we should ________.A．return to gentleness and tolerance Array B．reflect on our behavior that needs correctingC．avoid the hard words and sharp tonesD．examine if anything is wrong with him第三部分语言知识运用（共两节）第一节（每小题1分，满分20分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．The other day I was offered two tickets to a special preview of the latest movie for free. I wasn’t interested, 1 I knew my two boys would be.That evening, we were a bit 2 for time. So instead of having dinner at home, we had fast food near the movie theater Oscar. There went the 3 of eight movie tickets.Then I met up with a friend and we sat around 4 for a while , and another movie ticket went into a cup of coffee, After that, we figured we might as well 5 around until the movie ended to pick up the boys. To help 6 the time, I bought snacks. However, the 7 went for an hour longer than expected. To watch the free movie, we always have to 8 an hour of ads.Oh, did I 9 parking and fighting my way through the 10 to get to the right theater? I could have sent the 11 to a movie theater in walking distance and had enough 12 left over to watch ten mare movies!Next time I’m offered something free, I’ll 13 refuse it.I should have known better. 14 in 2004, I built my own business. One of my marketing strategies is that I often offer free gifts, I said “probably” because “free” is just the most irresistible 15 in your marketing language. And it always 16 .If you don’t believe me, next time when you do a promotion, 17 this test: one with and one without the free 18 . You will be amazed by how many people will 19 hundreds of dollars to get something for 20 !1、A．for B．or C．so D．hut2、A．grateful B．prepared C．rushed D．thankful3、A．lime B．price C．chance D．length4、A．singing B．judging C．bargaining D．chatting5、A．wander B．turn C．look D．gather Array6、A．save B．waste C．record D．kill7、A．meeting B．movie C．walk D．coffee8、A．break down B．sit through C．cut down D．look through9、A．forget B．continue C．mention D．stop10、A．race B．park C．gate D．traffic11、A．employees B．customers C．boys D．friends12、A．food B．patience C．mom D．money13、A．probably B．angrily C．definitely D．repeatedly14、A．Ending B．Writing C．Revolting D．Stalling15、A．word B．reason C．letter D．desire16、A．fails B．cheats C．works D．loses17、A．try B．study C．face D．attend18、A．help B．gift C．advice D．market19、A．gain B．hank C．receive D．pay20、A．something B．everything C．nothing D．anything第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
专业英语A组笔译初赛试题-模拟卷
第二十五届湖北省翻译大赛专业英语A组笔译初赛试题（模拟卷）选手姓名：_______________________参赛证号：_______________________请将所有答案全部填写在[答题纸]上。
I.Chinese-English Phrase TranslationDirections: Each of the underlined Chinese phrases below is followed by four possible English translations marked A, B, C and D respectively. Tick off the best choice and write the corresponding letter in the answer sheet. (10 points in total, 1 point each)1.搞平均主义，吃“大锅饭”，人民生活永远改善不了，积极性永远调动不起来。
A. common rice potB. enjoying “the mess”C. sharing food from the same big potD. “the big rice bowl” system2.对于中国的绘画艺术，诗、书法、画和印章雕刻必不可少，相得益彰。
A.seal engravingB.seal sculptureC.seal carvingD.seal shaping3.博鳌亚洲论坛成立以来，在凝聚亚洲共识、促进各方合作、推动构建人类命运共同体等方面建言献策，做出了积极贡献。
A. a community of common fortune for mankindB. a community of common destiny for humansC. an integrated entity of destiny for mankindD. a community with the shared future for mankind4.他这一阵子心头如同十五个吊桶打水，七上八下，老是宁静不下来。
《计算机专业英语》期终考查试卷(A卷)及答案
《计算机专业英语》期终考查试卷（A 卷）适用专业：translate them into Chinese.（15points ） 1、 LCD2、 RAM3、 ICMP4、 BBS5、 DBMS Ⅱ.Choose the best words for the following sentences.1.What is used by DBMS to organize the structure of the database?A.SQLB. Database serverC. Database modelD. Relational database2.The row in a table represent records, which are collections about a specific .A.itemB.topicC.databaseD.relation3.Data enters the computer is call .A. informationB. inputC. outputD. program4. is the best transfer media at present.A. Coaxial cableB. Optical fiberC. Twisted pairD. Radio5.Each computer or shared device found on the network is known asa .A .network node B. bridge C. server D. workstation6. In a , each device has its own cable run connecting the device to a common hub or concentrator.A. StarB. BusC. TreeD. Mesh7. Which of the following statements are not the steps of website design?A. Surf WWWB. Determine consumersC. Webpage designD. Publish Website8. Which of the following is not the search engine?A. GoogleB. BaiduC. NetscapeD. Dreamweaver9. Software is a set of that tell a computer what to do.A. toolsB. instructionsC. symbolsD. rules10. Windows XP adopted the kernel technique of .A. Windows MeB. Windows NT/2000C. Windows 98D. Windows 9511. Which of the following tells the CPU where to find the data to be manipulated?A. ClockB. Operation codeC. OperandD. Instruction control unit12.The is the speed at which a hard drive finds data.A. capacityB. versionC. costD. average access time13.There are several kinds of system software, such as .A. Microsoft WordB. DelphiC. virusD. Windows14.There are several kinds of application software, such as .A. WindowsB. UnixC. DreamweaverD. Linux15.Which protocol does Internet mainly use?A. The OSI reference modelB.TCP/IPC.File Transfer PotocolD.HTTPⅢ.Match the following terms or phrases. （20points）1、router ( ) A.完整性2、Wizard ( ) B.交换机3、video ( ) C.对象4、platform ( ) D.补丁5、processor ( ) E.指令6、compression ( ) F.平台7、circuit ( ) G.视频8、instruction ( ) H.处理器9、memory ( ) I.终端10、register ( ) J.存储器11、patch ( ) K.向导12、object ( ) L.压缩13、integrity ( ) M.电流14、encryption ( ) N.电路15、navigation ( ) O.路由器16、current ( ) P.寄存器17、terminal ( ) Q.加密18、peripheral ( ) R.外围设备19、broadband ( ) S.定位20、switch ( ) T.导航Ⅳ.Translate the following sentences into Chinese. （35points）1.The size of ENIAC's numerical "word" was 10 decimal digits, and it couldmultiply two of these numbers at a rate of 300 per second, by finding the value of each product from a multiplication table stored in its memory.2.The administrator is the user (or a group of users ) who has control over howthe other users (network clients) access and use the network resources. Network administrators manage the use of resources and services used on the network.3. A network is a collection of computers and devices connected together viacommunication devices such as cable telephone lines, modems, or other means.Sometimes a network is wireless; that is, uses no physical lines or wires.4.Windows XP adopts completely new operating interface, and possesses the new visual sense design, and its three-dimensional icon effect has brought the big enjoyment to users from the visual sense.5. A computer is consist of a variety of hardware components that work together with software to perform calculations(计算),organize data, and communicate with other computer.6．In the management of economy, database can process at statistic data ,analyze and obtain a result so as to guide the enterprises to develop rapidly. Previously, very few people interacted directly with the database system.7.For a secretary（秘书）, using the system for word processing and casual（偶尔的）queries, the keyboard and screen are much more important than anything in the system unit. Performance may be less significant than comfortable.《计算机专业英语》期终考查试卷（A卷）Ⅰ.Write the full names of the following words and translate them into Chinese.(15’)1、LCD: Liquid Crystal Display 液晶显示器2、RAM：Random Access Memory 随机存储器3、ICMP：Internet Control Message Protocol 网际控制报文协议4、BBS：Bulletin board system 公告板系统5、DBMS：Database Management System数据库管理系统Ⅱ.Choose the best words for the following sentences.(30’)CBBBA AADBB CDDCBⅢ.Match the following terms or phrases. (20’)O K G F H L N E J P D C A Q S M I R T BⅣ.Translate the following sentences into Chinese.(35’)1、ENIAC的数字“字长”为10位十进制数字，它以每秒300次的速度运算两个这样数字的乘法，其办法是通过从存储在它的存储器中的乘法表中找到每次乘积的值。
《食品专业英语》考查试卷(A卷)及答案
《食品专业英语》考查试卷（A卷）一、指出下列前后缀或词汇含义（每小题1分，共20分）英译中中译英pre- 聚，多-ase 单agro- 生物的super- 水，氢micro- 半solution 浓缩sanitation 氧气oxidation 脱水干燥organic substance 繁殖growth medium 呼吸作用二、选择题（每小题2分，共20分）1. Proteins are of great size, complexity, and diversityA. atomsB. moleculesC. protonD. ion2. In foods containing salt as a , the salt has been ionized, collectingwater molecules about each ion.A. additivesB. drierC. preservativeD. food adjucts3. While the energy for life on this planet is captured by green plants in thephoto-synthetic process, are generally responsible for the finaldecomposition of the photo-synthetic products.A. plantsB. animalsC. microorganismsD. mankind4. Fermentation is a process of anaerobic, or partially anaerobic, oxidation of .A. carbohydratesB. proteinsC. vitaminsD. fats5. Four substance are essential in obtaining a fruit gel. These components are , acid, suger and water.A. celluloseB. mineralsC. carbohydratesD. pectin6. The word is often paired with the word food because the two go gogether. They are interdependent, but not interchangeable.A. starchB. lipidC. nutritionD. sugar7. Esters of fatty acids with alcohols is .A. simple lipidsB. compound lipidsC. derived lipidsD. hydrocarbons8. are the “ building blocks” of proteins.A. peptidesB. amino acidC. enzymesD. lipid9. The fungi, consist of two major microorganisms, and yeasts.A. moldsB. bacteriaC. microbeD. cocci10. Marmalade is a product made from and is the jelly-like product made from properly prepared juice an peel, with sugar.A. watermelonB. strawberryC. grapeD. citrus fruit6分，共30分）1.These nutrients are categorized as fats, proteins, carbohydrates, minerals, vitamins, and water. They are called essential nutrients because we cannot get along without them.2. Fats and Oils are the most concentrated source of food energy. They provide 9 kcal of energy per gram which is approximately double the energy provided by proteins or carbohydrates.3. Providing adequate supplies of protein poses a much greater problem than providing adequate supplies of either carbohydrate or fat.4. Another importants aspect of enzymic activity in addition to catalytic power is the specificity of enzymic reactions.5. From a biological point of view, we eat to survive, and the pattern of our nutrient requirements has developed during a long evolutionary processes, in which man has adapted to his enviroment.四、汉译英（每小题6分，共30分）1、虽然食物保藏体系一般都抑制微生物生长，但不是所有微生物都是有害的。
饭店英语考试A卷
《旅游专业英语》试题（A 卷）
开卷（ ） 闭卷（ √） 适用专业年级： 2006 级旅游管理普本 1、2 班及旅游职教
姓名
总 分 阅 卷 人 核 分 人 得 分 题 号 题 分 一
学号
二 三
专业
四 五 六
班级
七 八 九 十
本试题一共六道大题，共六页，满分 100 分。考试时间 120 分钟。
注：1.答题前，请准确、清楚地填各项，涂改及模糊不清者、试卷作废。 1.答题前 请准确、清楚地填各项，涂改及模糊不清者、试卷作废。 答题前，
任课教师：吴虹 《旅游专业英语》试卷（A 卷） 第3页
系（教研室）主任签字：
A卷
Answer
Sheet
Part I 请听下面的对话，选择正确答案。 一．请听下面的对话，选择正确答案。 1-5 请听下面的两个对话，把空白处补充出来。 二．请听下面的两个对话，把空白处补充出来。 1 2 3 4 5 6 7 8 9 10 请听下面的两段段话，判断下列说法是否正确。 三. 请听下面的两段段话，判断下列说法是否正确。 1-5 6-10 Part II 1. 2. 4. 5. 7. 8. 9. Part III 1. 2. 3. 4. 5. 6. Part IV
任课教师：吴虹 《旅游专业英语》试卷（A 卷） 第2页 系（教研室）主任签字：
A卷
Part IV 撰写确认函 (6 Points) 假设你是成都假日酒店宴会部的销售经理王明，请您给张先生写一封确认函，确认张先生 女儿婚宴的细节（婚宴定于三月六日星期六两点举行，有 100 人参加婚礼。张先生愿意要 10 人一桌的婚宴套餐，每客 60 元。酒店希望收到 10%的定金） 。
2．试卷若有雷同以零分计。 试卷若有雷同以零分计。
上海财经大学浙江学院《热动专业英语A》2023-2024学年第一学期期末试卷
2023-2024学年第一学期期末试卷1、You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.A．that; what B．what; / C．which; that D．/; that2、--- I’ll take the blue one. This is twenty dollars.--- Here’s the change. .A．Best wishes B．My pleasureC．Have a nice day D．Let’s call it a day3、一"Peter, have you got your new flat furnished?—Yes. I ______ some used furniture and it was a real bargain.A．will buy B．have bought C．bought D．had bought4、The infrastructure project has consumed so much money that we can't find any financialsupport and have to ______.A．pull out B．pull throughC．catch up D．catch on5、The new means of transport ________ in this city, so whether it will work out remains tobe seen.A．have never tried B．has never tried C．have never been tried D．has never been tried6、He doesn't spend any more money on clothing than I do,but________he manages to look so stylish.A．therefore B．somehowC．furthermore D．otherwise—Oh, no．That old lady sitting next to us ______ have taken ours by mistake.A．must B．could C．should D．would8、—Would you please wait for a moment while I telephone the reception desk to check?—________.A．I wouldn't mind that B．Sound like funC．I mean it D．Y ou wish9、—I know it is really a lot to ask, but can I use your apartment during the summer?— ________. I happen to be out of town. It is all for your taking.A．Behave yourself B．Be my guestC．Have fun D．Take care10、The influence of this book might not have been reaching so far, ________for Mr. William, who dared to publish it.A. if had it not been B．is it not being C．had it not been D. its only having been第二部分阅读理解（满分20分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
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第 5 页 共 6 页 《专业英语(自动化)》 练习卷A卷 一．Put the following words and phrases into English or chinese. (20*1=20)
1． 电路 2．控制系统 3．元件 4．电压 5．电流 6．欧姆定律 7．开关 8．指针 9．螺丝刀 10．引脚 11．Strip 12．Intergrated circuit 13．chip 14．sensor 15．maintenance 16．actuator 17．joint 18．servomotor 19．telerobot 20．gripper
二． Choose one word from the word list below to fill in the blank in each of the following sentences. (20*1=20) 1)Digital 2)analog, 3)positive 4)common 5)a function switch 6)a range switch 7)extended ranges of voltage 8)dc and ac 9)current 10) resistance
装 订 线 班级： 学号： 姓名： 第 6 页 共 6 页 A multimeter is a general-purpose meter capable of measuring voltage, , , and in some cases, decibels. There are two types of meters: using a standard meter movement with a needle (see Fig 3.1(a)), and , with an electronic numerical display (see Fig 3.1(b)). Both types of meters have a (+) jack and a jack (-) for the test leads， to select dc voltage, ac voltage, dc current, ac current, or ohms and for accurate readings. The meters may also have other jacks to measure (1 to 5 kV) and current (up to 10A) there are some variations to the functions used for specific meters. 1)Resistance 2)placed across (in parallel) 3)be removed 4)in series with 5)mechanical adjust 6)automatic indicator 5)properly 8) test leads 9)correct 10)be opened Besides the function and range switches (sometimes they are in a single switch.) The analog meter may have a polarity switch to facilitate reversing the test leads. The needle usually has a screw for to set it to zero and also a zero adjust control to compensate for weakening batteries when measuring . An analog meter can read positive and negative voltage by simply reversing the or moving the polarity switch. A digital meter usually has an for polarity on its display. Meters must be connected to a circuit to ensure a reading. A voltmeter is always the circuit or component to be measured. When measuring current, the circuit must and the meter inserted the circuit or component to be measured. When measuring the resistance of a component in a circuit, the voltage to the circuit must and the meter placed in parallel with the component.
三.Read the following passage and answer the questions.（5*8=40） Robots Robots produce mechanical motion that,in most cases,results in manipulation or locomotion.For example,industrial robots manipulate parts or tools to perform manufacturing tasks such as material handing,welding,spray painting,or assembly;automated guided vehicles are used for transporting materials in factories and warehouses.Telerobots provide astronauts with large mainipulators for remotely performing spacecraft maintenance. Robots perform repetitive,high-precision operations 24 hours a day without fatigue.Robots on this automobile assembly line weld body parts together.The General Motors corporation uses about 16,000 robots to weld,assemble,and paint automobiles. Walking robots explore active volcanoes.Mechanical characteristics for robots include degrees of freedom of movement,size and shape of the operating space,stiffness and strength of the structure ,lifting capacity,velocity ,and acceleration 第 5 页 共 6 页
under load.Performance measures include repeatability and accuracy of positioning,speed,and freedom from vibration. A robot is made up of sensors,actuators,and computatlonal elements(a microprocessor).Actuators for moving joints of a robot are usually electric servomotors.In the past ,larger robots were built with hydraulic actuation due to their high payload capacity and ability to work in explosion-prone environments.In the 1990s,there was a trend by the major manufacturers to use electric actuators in most of their industrial robots. A robot is an automatically controlled, reprogrammable, multipurpose, manipulating machine with several reprogrammable axes, which may be either fixed in place or mobile for use in industrial automation applications. The key words are reprogrammable and multipurpose because most single-purpose machines do not meet these two requirements. The term “reprogrammable” implies two things: The robot operates according to a written program, and this program can be rewritten to accommodate a variety of manufacturing tasks. The term “multipurpose” means that the robot can perform many different functions, depending on the program and tooling currently in use. Over the past two decades, the robot has been introduced into industry to perform many monotonous and often unsafe operations. Because robots can perform certain basic tasks more quickly and accurately than humans, they are being increasingly used in various manufacturing industries. 1.What industrial robots can do for people?