2023年机电专业英语期中复习题库

四川核工业技师学院2023-2023年第一学期期中考试复习题库 科目： 机电英语 层次： 高级工 ， 考试时间 90分钟 合用班级：二校区机电1322项目一二三四五合计复核署名得分阅卷 一、英汉互译。（40分，每空2分）1、mechanical design_ 2、机械制图_3、kinematics_ 4、工程材料_5、strength of materials _ 6、unforeseen problems _7、为了_ 8、operating dimensions _ 9、制造周期_10、optimum utilization_ 11、销售吸引力_12、centrifugal force_13、thermal expansion _ 14、交变应力_15、stress concentration_16、共振_17、parts manufacturers_ 18、CAD/CAM_19、螺纹孔_20、谢谢_二、连线题（20分，每空2分）1. 运动副 A motivity member2. 原动件 B motion pairs3. 从动件C switch4. 开关 D driven member5.自由度 E sliding pairs6. 机架 Fhardness7. 坐标 Gparameter8. 参变量Hcoordinate9. 移动副I machine frame10. 硬度Jfree degreeFundamental surface stress determinableon the safe side in a manner facilitate三、选词填空. （20分，每空3分）The _ equations of mechanics and the other sciences are the accepted bases for calculations. They are sometimes rearranged in special forms to _ the determination or optimization of dimensions, such as the beam and _equations for determining gear-tooth size. Factors may be added to a fundamental equation for conditions not analytically_, e.g., on thin steel tubes, an allowance for corrosion added to the thickness based on pressure. When it is necessary to apply a fundamental equation for to shapes, materials, or conditions which only approximate the assumptions for its derivation, it is done _which gives results”_”. In situations where data are incomplete, equations of the sciences may be used as proportioning guides to extend a satisfactorydesignto new capacities.四、将下列句子翻译成中文（40分，每题5分）1. Activityconnectionsbetweentwomembersthathavetherelativemotionarecalled themotion pairs.2. Allmotionpairscontactwithplanesarecalledlowerpairs，allmotionpairscontactwithpointsorlinesarecalledhighpairs3. Thememberisusedtosupportthemembersofmotioninthemechanismtobecalledthemachineframeandusedasthereferencecoordinatetostudythemotionsystem.4.Thememberthatpossessestheindependencemotioniscalledmotivitymember. Thememberexceptmachineframeandmotivitymemberbeingcompelledtomoveinthemechanismiscalleddrivenmember.5.Theindependentparameter(coordinatenumber)essentialfordescriptionordefinitemechanismmotioniscalledthefreedegreeofmechanism.6.Forgainingthedefiniterelativemotionbetweenthemembersofmechanism, itisnecessarymakethenumberofmotivitymembersofmechanismequalthenumberof freedegrees.7.Mechanismsmaybecategorizedinseveraldifferentwaystoemphasizetheir similaritiesanddifferences.8.A mechanismisthememberscombinationmorethantwoortwoconnectionswiththememberstorealizetheregulationmotionmadebywayoftheactivity.五、单项选择 (共30分 每小题2分)1. - I think eating more vegetables is good _ our health.- Yes, I agree _ you.A. at, to B. to, to C. for, with D. for, to2. - Do you know the boy_ is sitting next to Peter? - Yes. He is Peters friend. They are celebrating his _ birthday. A. who; ninthB. that; ninethC. /; ninethD. which; ninth3. - Did you have a good time at Lauras birthday party? - Yes, indeed. Its several years _ I enjoyed myself so much. A. whenB. beforeC. sinceD. that4. - You can use MSN to talk with Vivien on the Internet. - I know. But can you tell me _? A. when I can use itB. what I can use itC. why can I use itD. how can I use it5. -The 2023 World Expo (世博会) which will last 184 days will be held in Shanghai on May 1st. - _ exciting news! We shall try our best to support it. A. HowB. WhatC. How anD. What an6. - Have you seen the TV play My Ugly Mother? - Yes, its well worth _. Its _ moving that Ive seen it twice. A. seeing; tooB. to see; enough C. seeing; soD. to see; such7. - What do you think of the lecture of Li Yangs Crazy English? - I think its _ , but someone thinks its much too _. A. wonderful enough; boredB. enough wonderful; boringC. wonderful enough; boringD. enough wonderful; bored8. - Who will send you to the new school, your mom or your dad? - _. Ill go there by myself. A. BothB. EitherC. NeitherD. None9. - Is this park youve visited recently? - Yes, its the most beautiful one Ive ever visited before. A. the oneB. thatC. whichD. the one which10. - Its difficult for the village children to cross the river for school. - I think a bridge _ over the river. A. should be built B. is being builtC. has been builtD. was built 11. - How do you like the dishes, Eric? - Fantastic! Nothing tastes _. A. niceB. betterC. terribleD. worse12. - After discussing, the students _ some good ideas to work on the project. - Thats great! A. put upB. came up withC. caught up withD. set up 13. - Did you see a girl in yellow pass by just now? - No, sir. I _ a magazine. A. readB. am readingC. would readD. was reading14. - What did Mr Green say to you? - “What a heavy rain! How did you come here?” He asked_. A. at allB. in factC. in surpriseD. as a result15. - Zhao Rui, its said that many famous singers will come to Yangzhou on April 18th.How about watching the evening show there? - _! Lets ask Huang Tao to go with us. A. Best wishesB. Sounds greatC. Good luckD. Thats OK六、阅读理解(共90分 每小题3分) ( A )Carl is a good boy. He lives in a small house with his family in London. He is 18 years old and he is a student of a secondary school. But he works after school every day. He has a part-time job. He helps at a big restaurant.Carl gets up at 6 in the morning. He doesnt like to get up so early. But his first class begin at 7.30 a.m. He usually has some bread, an egg, an apple or a banana for his breakfast. His mother wants him to have a big breakfast. After that, he and his young sister, Tina go to school. Carl is at school from 7.30 to 12. He has lunch at 12.15with his good friend Tim. And then he has a little rest . In the afternoon, he works. Therere many customers in his restaurant at lunch and supper time and Carl likes to help them. After supper, he helps his parents clean the dishes in the kitchen. Then he studies in his bedroom. He doesnt watch TV. He goes to bed at about 11.30 at midnight. He must be very tired. ( )1. Carl is _. A. a waiter in a small restaurant B. a teacher at school C. a worker D. a student, but he helps in a restaurant after school ( )2. Carl _. A. works in a small restaurant B. lives in a small school C. studies in a small school D. lives in a big city ( )3. Carl studies at school _ a day. A. four hours B. one hour C. four hours and a half D. four hours and a quarter( )4. Carl must be very tired because _. A. he watches too much TV B. he works and studies for a long time every day C. he has lots of dishes to clean D. he is ill ( )5. Which of the following sentence s is true? A. Carl likes to have many things for his breakfast. B. Carls mother works in a restaurant. C. Tina is Carls young sister and she is a student, too. D. Carls father doesnt do anything at home. ( B )Have you felt annoyed when telephone rings during the class? Something must be done to stop this. Now in New York City, USA, a rule is carried out in schools. Students cant even bring telephones to school. Is it a good thing or not?Anxious parents say that telephones are important tool in holding New York citys families tighter.“I worry about it,” said Elizabeth Lorris Ritter, a mother of a middle school kid. “Its necessary in our everyday life. We have a washing machine, we have running water, and we have telephones.”Many American parents think telephones connect them to their children on buses, getting out from subways, walking through unknown places.“I have her call me when she gets out of school,” said Lindsay Walt, a schoolgirls mother. “Nobody in New York is going to let their child go to school without a telephone.”What about the telephone owners, the students? Most of the students said telephones were essential and the telephone was like an extra hand or foot for them.“I feel so empty,” said May Chou, 14. “There is also no way to listen to music on the way to school without my phone. It will be a really, really boring trip.”( ) 6.You will feel _when you hear a telephone ring in class.A. annoyedB. excitedC. happyD. bored( ) 7.You can use a telephone _.A. to enjoy listening to music B .to work as running waterC .to work as a washing machine D. to work as computer( ) 8.Which of the following statements is true?A. Many American parents dont think telephones are necessary for the students.B. Telephones only bring troubles to the school life.C. Telephones connect children with their families when they are outside.D. Telephones are really useless and cost a lot.( ) 9.The underlined word “essential” means_.A. fashionableB. interestingC. different D. necessary( ) 10.This article is about the _in carrying out(开展) the rule not to use a telephone in school.A. happinessB. interestC. problem D. sadness ( C )Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using it in a good way. Here are some rules to make sure you are safe and have fun on the Internet.Make rules for Internet use with your parents. For example, when you can go on line, for how long and what activities you can go on line.lDont give your password (密码) to anyone else, and never give out the following information -your real name, home address, age, school, phone number or other personal information. lCheck with your parents before giving out a credit card (信用卡) number.lNever send a photo of yourself to someone in e-mail unless your parents say its OK.lCheck with your parents before going into a chat room. Different chat rooms have different rules and attract different kinds of people. You and your parents will want to make sure its a right place for you.lNever agree to meet someone you met on the Internet without your parents permission. Never meet anyone you met on line alone. lAlways remember that people online may not be who they say they are. Treat everyone online as strangers.lIf something you see or read online makes you uncomfortable, leave the site. Tell a parent or teacher right away.lTreat other people as youd like to be treated. Never use bad language.lRemember：not everything you read on the Internet is true.11. The writer tells children to_.A. send their photos to him B. make rules for Internet use with parents C. believe everything they read on the Internet 12. Its good for children to_ on the Internet.A. give password to others B. get useful knowledge and information C. give out a credit card number 13. What shouldnt be done when you are on line?A. Using bad language.B. Treating everyone online as strangers.C. Leaving the site if you feel uncomfortable. 14. If your parents dont agree, never_.A. read anything on the Internet B. treat other people as youd like to be treated C. have a face-to-face meeting with anyone you met online 15. The best title for this passage is “_”.A. How to Use Computers B. Information on the InternetC. Internet Safety Rules ( D )Weve talked about snails (蜗牛) and their slow move. But much of the time snails dont move at all. Theyre in their shells (壳)-sleeping .Hot sun will dry out a snails body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep. In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It cant see very well. Its eyes, at the ends of the top feelers (触角)are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snails little mouth goes to work. A snails mouth is no longer than the point of a pin(针) . Yet it has 256,000 teeth! The teeth are so small that you cant see them. But they do their work. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.Mostly, a snail looks for food at night. But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.16. A snail .A. moves more slowly in the daytime B. has thousands of feet C. sleeps much of the time 17. In the sentence “A snail draws its body into its shell”, the word “draw” means_. A. to make with a pen B. to keep away from C. to pull 18. From the story we know_. A. the snails shell is very thin B. a snail cant see well C. the snails nose is quite short 19. A snail goes to sleep when_.A. it feels hungry B. it rains heavily C. spring is coming 20. Which of the following in not true?A. A snail doesnt like living under the sun B. In winter the snail doesnt eat or move C. The snails teeth cant be worn out.( E )Firstly, lets learn the contactor. A contactor is an electrically controlled switch used for switching a power circuit. Generally speaking, a contactor is activated by a control input which is a lower voltage / current than that which the contactor is switching. Contactors come in many forms with varying capacities and features. Contactors vary from having a breaking current of several amps and 110 volts to thousands of amps and many kilo-volts. The physical size of contactors differs from a few inches to the size of a small car.Then lets know the purpose of contactor. Usually, contactors are used to control electric motors, lighting, heating, capacitor banks and other electrical loads.And now lets see what a contractor consists of. We can say: a contactor consists of 3 different systems: contact system, electromagnet system and arc control system.So do you know their function? In a general way, the contact system is the current carrying part of the contactor. This includes power contacts, auxiliary contacts, and contact springs. The electromagnet system provides the driving force to close the contacts. Fuse Maybe you have already known that a fuse is the easiest and efficient protective electrical apparatus and it is designed for short circuit protection in many cases. Always we use FU to stand for fuse.21. A contactor is an electrically controlled switch used for switching a _ circuit. A. none B. secondary C. primary D. power22. Contactors are used to control electric_, lighting, heating, capacitor banks and other electrical loads. A. none B. both C. generators D. motors23. A contactor consists of 3 systems: contact system, _ and arc control system. A. tough B. strong C. electromagnetic D. it does not mention 24. The contact system is the _ carrying part of the contactor A. gold B. resistance C. current D. voltage25. Always we use FU to stand for _. A. inductor B. fuse C. resistor D. capacitor( F )Multi-meter is a multi-functional, multi-range, portable electronic instrument. It can be used to measure many physical quantities such as the current and voltage of DC and AC, as well as resistance, audio level and the multiple of DC magnification of the transistor, and so on. Multi-meter is composed of the head, measuring line, switch and testing pen, etc. The head is used to indicate the measured values; measuring line is used to convert various measured current to small DC current or voltage suitable for the head measurement; change-over switch is to realize different choices of measuring lines and different range to meet specific requirement.The multi-meter can be divided into analogue and digital multi-meter. The analogue multi-meter takes magnetic-electric measurement institutions as the core, using indicators to show measured values; the digital multi-meter takes a digital voltage meter as the core, along with different converters and shows measured values via liquid crystal indicator.26. The multi-meter can measure current, voltage, resistance, audio level and the multiple of DC magnification of_. A. resistor B. capacitor C. transistor D. inductor27. Multi-meter is composed of the head, measuring line, switch and _, etc. A. test B. pen C. wire D. testing pen28. The multi-meter can be divided into analogue and_ multi-meter. A. red B. number C. digital D. numerical29. _ multi-meter takes magnetic-electric measurement institutions as the core. A. Analogue B. Digital C. None D. Both30. _ multi-meter takes a digital voltage meter as the core. A. Analogue B. Digital C. None D. Both七、写作1、写一篇关于学习专业英语的感受，不少于200词。（30分）2、写一篇自我介绍，不少于150词。（30分）