电力英语考试重点选择题
Section4
1.got in touch with 2 always come up with 3 catches sight看见of 4 I get off the trai n?5 go out for a walk. 6 s come down
in 7 give up放弃smoking 8 population人口growing fast, 9 not go to bed?’10 An average平均Japanese 11 been held up 12meeting was to be held举行.13had better not drink water that
considered认为to 16 to the hospital 17 put your mind 专心into 18 I
him 21the pleasure荣幸of 22 no double room
her coat, 25often mistake Tom for 26 We listened carefully but heard nothing.27 have much in common共有的.28 her 29photo hanging悬挂on 30 best handle处理the problem?
2 to sum up his
3 must weigh the
4 spent years researching in
5 have to step
6 get down to it.
7have to compensate补偿the 8 new opportunities机会will 9 keep me informed of 10 regretted后悔not going to
11are bound必定的to 12 to a close late 13 safely确实地conclude推断that 14 , for the water 15 in proportion to the
16whatever无论怎样you 17 I am tired of 18 new era时代in 19 facing fierce competition20 in association联合with
21week, when they won’t 22 , crying bitterly悲痛.23 he referred提到to 24 is an element元素, 25 from none一点也不.
26 to be thankful for 27 His ambition雄心\野心had 28 energy能量by operating运行\工作29 , almost helpless without 30heated激烈的arguments争论they had,
Section15
1to check out five 2 older 3 A(n) desperate man 4
贸易barriers 障碍物against 6
9 You’ll end up告终getting 10
13, and a third opposes反对
their 17 was only too willing 18 into a passion激情/热情when 19 to attend to their 20 were still 12000 dollars short
21 adventures makes excellent 22 Given their 23 brought him through. 24 after a good deal of
25supplies(supply提供) them with food 26 us didn’t live up to无愧于what
28riendly to them. 29 is that he worked hard.30 He has
Section16
1
6
11
15other cars 18 Good work deserves应得good pay. 19 always room for 20 to fiction小说of any kind interfere干扰with health.23She has borne(产生bear的过去分词) him 24 the 25 They met with遭遇an
Egypt 27 is on intimate terms with $100.
the costs of the projects.
Section17
1Take it easy, we 2 named idea of what was going
5be generous with his money. in
调查员开始了与评论，
奖学金12 restricts限制himself to
smoking . 13 with 14 I disapproved不赞成were exposed暴露to considerable 16 all the official官方documents文件18have no taste for it ,”
19s indispensable不可缺少的to the study 20 left off(leave off停止；中断)last time. 21 great sympathy同情心for the 22ish to withdraw退出from the examination考试23 there are no complicated复杂的problems but can be solved.
批评. 25 told the lady to cut out meat
the shirt factory 28 it is in season季节
同事30 in their power for Dorothy, who had set them free from slavery奴役. 他们很乐意用他们力量为多萝西做，谁已让他们摆脱奴役。
电力英语考试选择题讲解
Section11.The orange is too high on the tree . It‘s out of my reach(伸出手).I need someone to help me.2.The city is named after famous president. (这个城市是著名的总统名字命名的) named after短语‖命名‖3.It took millions of people several years to build the Great Wall.4.I have always considered(考虑过的/认为) you my best friend.5.If I take this medicine twice a day, it should cure (治愈)my cold.. 如果我服用此药，一天两次，就应该治愈我的感冒6.It is considerate考虑周到的of you to turn down the radio while your sister is still ill in bed. 这是体贴你调低收音机，你的妹妹还在床上生病。
7.It‘s not quite certain 肯定that he will be present at the meeting. 这不是肯定的是，他将出席会议8.It was natural (自然)that he count(计算) the days before going home.9.when she saw the clouds(乌去密布) she went back to house to fetch(取) her umbrella(伞).10.The metals which we find in the earth include(包括) iron , lead and copper. 在我们地球上发现金属包括有铁，铅和铜11.Your hair needs to be cut(剪) ;would you like me to do it for you..12.It was difficult难to guess猜测what her reaction反应to the news消息would be.13.Contrary相反to your prediction预言, they lost the game..14.We say that a person has good manners if he or she is polite , kind and helpful to others. 我们说一个人具有良好的风度，如果他或她是有礼貌，善良和乐于助人。
电大英语试题库及答案
电大英语试题库及答案一、选择题（每题2分，共20分）1. The book is ________ interesting that I want to read it again.A. soB. veryC. tooD. quite答案：A2. ________ you are here, let's start our meeting.A. SinceB. IfC. BecauseD. As答案：A3. She ________ to the concert last night.A. didn't goB. doesn't goC. hasn't goneD. wouldn't go答案：A4. I ________ you to be here before me.A. thinkB. thoughtC. am thinkingD. have thought答案：B5. ________ the weather is fine, we can have a picnic.A. BecauseB. IfC. UnlessD. Although答案：B6. He ________ his homework when his mother came in.A. was doingB. didC. doesD. is doing答案：A7. ________ you are young, you should study hard.A. BecauseB. SinceC. AsD. For答案：B8. The teacher asked us ________ the book.A. don't readB. not to readC. not readD. to not read答案：B9. ________ the problem, we need more information.A. To solveB. SolvingC. SolvedD. Solve答案：A10. She ________ her keys in the office.A. leftB. forgotC. lostD. missed答案：A二、填空题（每题1分，共10分）1. If you ________ (be) more careful, you wouldn't have made so many mistakes.答案：were2. ________ (not worry) about the test; I'm sure you'll do well.答案：Don't worry3. The meeting ________ (start) at 9:00 AM sharp.答案：starts4. She ________ (be) a teacher for ten years before she became a writer.答案：has been5. ________ (not forget) to bring your passport with you.答案：Don't forget6. ________ (be) there any problems, please call me.答案：If there are7. He ________ (go) to the gym every day since he started his new job.答案：has been going8. ________ (not make) so much noise; the baby is sleeping. 答案：Don't make9. ________ (be) you ready for the exam?答案：Are10. ________ (not talk) while you are eating.答案：Don't talk三、阅读理解（每题2分，共20分）阅读下面的短文，然后回答问题。
国家电网专业技术人员电力英语水平考试(英语单项选择)第4节
Section 4 (第四节)1. With the help of the policeman ,the parents got in touch with their lost child by accident .译文：在警察的帮助下，父母与他们意外丢失的孩子联系上了。
2. Intelligent people can always come up with good solution to problems.译文：聪明的人总是能想出解决问题的好方法。
（come up 想出，提出）3. If anyone ever catches sight of the mugger anywhere, please call the police at the once.译文：如果任何人在任何地方发现了抢劫犯，请打电话给警察。
4. Where shall I get off the train?译文：我应该在哪儿下（火）车?5. Every evening after supper, my parents would go out for a walk .译文：每天晚上晚饭后，我的父母都会出去散步。
（go out出去for a walk散步）6. Johnson has come down in the world since his business failed .译文：自从约翰逊生意失败后，他就从上层社会下落了。
（生意失败，家道中落）7. If you don’t give up smoking you’ll never get better .译文：如果你放弃吸烟，你永远也不会变得更好。
（give up smoking 戒烟）8. With the country’s population growing fast, the government has taken the birth control policy. 译文：随着国家人口快速增长，政府采取了计划生育政策。
国家电网专业技术人员电力英语水平考试样题及答案
2012年6月国家电网公司电力英语水平考试范围样题及答案Section 1 单项选择1. John’s sudden death was a great blow to his mother and it took her a long time to the grief.A. come acrossB. put outC. go roundD. get over2. Teachers in the college.A. are trained; trainingB. train; trainingC. are trained; trainedD. train; trained3. The naughty boy is , and he is to his parents.A. trouble; troubleB. troublesome; troubleC. troublesome; a great troubleD. a trouble; a troublesome4. Accuracy is to the programming of computers.A. elementalB. elementaryC. fundamentalD. characteristic5. it is not easy to oneself of a bad habit.A. purityB. dismissC. releaseD. ridSection 2 短文判断Passage 1Nuclear power's danger to health, safety, and even to life itself can be summed up in one word: radiation.Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human senses. It cannot be seen or heard, or touched or tasted, even though it exists all around us. There are other things like that. Radio waves are all around us but we cannot detect them, sense them, without a radio receiver. Similarly, we cannot sense radioactivity without a radio detector. But unlike common radio waves, unclear radiation is not harmless to human beings and otherthings.At very high levels, radiation can kill an animal or human being outright by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hurt anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed outright, your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in a deformed way. They can grow into cancer. Sometimes this does not show up for many years.This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim being aware at the time that damage has occurred. A person can receive radiation and feel fine, then die of cancer five, ten or twenty years later as a result.1.The mystery about nuclear radiation may come from the fact that it cannot bedetected by human senses.A. RightB. Wrong2. We cannot sense radio activity without a radio receiver.A. RightB. Wrong3. Common radio waves are harmless to human beings and other things.A. RightB. Wrong4. Even at the lowest levels, radiation will cause cancer by killing the healthy cells.A. RightB. Wrong5. Victims of nuclear radiation may die of cancer years later.A. RightB. WrongSection C 补全短文Passage 1Many large cities are now anything but beautiful. Streets are littered with trash. In this trash, however, (1 ).If people want to solve the problem of waste, (2). They must work out ways of making use of good things which are just thrown away as waste. When a car gets too old, it may not run any more. But the metal that the car was made of is still good. (3). when a bottle is empty, it goes out in the trash. But bottle glass can be ground into sand and used to pave roads. Garbage from food can be changed into fertilizer. But first you have to fish out all the glass and metal.Furthermore, Garbage can also be a good source for making building blocks, which are then covered with concrete. Now, (4). Some day, people will watch films in a great cinema which has been built out of garbage. Future buildings, roads, and cities maybe made from garbage. But so far, (5).A. there is no time to be lostB. building beautiful cities out of garbage is only a dreamC. there is still something that can be usefulD. It can be put to use again.E. more and more machines are designed for this purposeSection D 阅读理解Passage 1Holidays in the United States usually occur at least once a month. Most months have a national holiday that has been arranged to be celebrated on a Monday. The holidays have all been decided to be celebrated on a Monday so that the workers may have 3-day weekends ----that is, Saturday, Sunday and Monday in order to rest or travel or do things with their families. Major holidays in the United States such as New Year’s Day or Christmas Day or the day, when we remember the first settle rs of the United States, called Thanksgiving Day are celebrated all over the country. During these holidays most businesses close and the workers stay home and celebrate with their families.Vacation can be from 2 weeks a year to 4 weeks a year. This usually depends on how long you’ve been working for a company, what type of position you have,whether you have a very high position or a very important position and it’s difficult to find someone to replace you. In this case, you might take a few days at a time rather than taking one month all at once. Usually the more time you spend working for a company, the more time you may get for a vacation.1. The government of the United States makes it a rule for workers to have a weekend almost once a month.A. 1-dayB. 2-dayC. 3-dayD. 4-day2. Workers in the United States sometimes work from .A. Monday to SaturdayB. Tuesday to SundayC. Thursday to FridayD. Tuesday to Friday3. Which statement is NOT true according to this passage?A. Only a few shops remain open on New Year’s Day.B. Most of the workers needn’t work on Christmas Day.C. Days on vacation must be more than all the holidays in a year.D. All the workers have a half-month vacation.4. The reason why someone has to divide his vacation into several parts is that .A. no one can be found to take his placeB. he hasn’t a most high positionC. he plays an important role in his workD. he hasn’t been working for his company for a long time5. Which of the following is the best title for this passage?A. Holidays in the United States.B. Vacation in the United States.C. How Do the Workers Spend Their Holidays.D. Something About the Holidays and Vacation in the U.S..答案：Section A: D A C C DSection B: A B A B ASection C: C A D E BSection D: C D D A D附：section c 翻译许多大城市也绝对不是漂亮。
国家电网专业技术人员电力英语水平考试(模拟精彩试题)
模拟试题一Part I.单选(30%)1. There’s something wrong with the thermometer. Don’t worry . I’ll make it works 。
2. Now people can learn huge amounts of information from the computer。
3. The expert you saw at the liaison meeting is a friend of mine 。
4. You have worked more carefully this week, for there are few mistakes in your calculation 。
5. Although the three workers got very tired in repairing the boiler, none of them would give it up。
6. Now computers can work out problems much faster than human beings。
7. There is too much cream on the cake。
8. Don’t worry. It is not difficult for us to treat the fault。
9. Ms, Chang doesn’t look well today . What is wrong with her?10. I’d like to lend you my electrical engineering handbook, but you’d better not lend it to others。
11. I think English is quite different from Chinese。
电大英语试题及答案
电大英语试题及答案一、选择题（每题2分，共20分）1. What is the capital of France?A. LondonB. ParisC. RomeD. Berlin答案：B2. Which of the following is not a fruit?A. AppleB. BananaC. OrangeD. Carrot答案：D3. The verb "to be" in the present tense is conjugated as:A. I amB. You areC. He isD. All of the above答案：D4. How many continents are there in the world?A. 5B. 6C. 7D. 8答案：C5. The phrase "break a leg" is commonly used to:A. Wish someone harmB. Wish someone good luckC. Refer to an injuryD. Ask someone to leave答案：B6. In English grammar, a noun is:A. A word that represents a person, place, thing, or ideaB. A word that modifies a nounC. A word that describes a verbD. A word that indicates the quantity of a noun答案：A7. Which of the following is not a color?A. RedB. BlueC. GreenD. Happy答案：D8. The opposite of "happy" is:A. SadB. AngryC. ConfusedD. Tired答案：A9. "A piece of cake" is an idiom that means:A. A slice of cakeB. Something very easyC. A dessertD. A difficult task答案：B10. The preposition "in" is used to indicate:A. TimeB. PlaceC. DirectionD. All of the above答案：D二、填空题（每题2分，共20分）11. The Earth is the ______ planet from the Sun.答案：third12. The ______ Ocean is the largest ocean in the world.答案：Pacific13. The plural form of "child" is ______.答案：children14. The word "library" can be pronounced as /ˈlaɪbrəri/ or ______.答案：/ˈlaɪbriəri/15. The past tense of "go" is ______.答案：went16. The word "because" is used to show ______.答案：reason17. The phrase "take a break" means to ______.答案：rest18. The word "unique" means ______.答案：one of a kind19. The verb "to run" can be used as both a transitive and an ______ verb.答案：intransitive20. The word "bicycle" is a ______ noun.答案：countable三、阅读理解（每题3分，共30分）阅读以下短文，然后回答问题。
电力英语考试选择题讲解
1.The orange is too high on the tree . It‘s out of my reach(伸出手).I need someone to help me.2.The city is named after famous president. (这个城市是著名的总统名字命名的) named after短语‖命名‖3.It took millions of people several years to build the Great Wall.4.I have always considered(考虑过的/认为) you my best friend.5.If I take this medicine twice a day, it should cure (治愈)my cold.. 如果我服用此药，一天两次，就应该治愈我的感冒6.It is considerate考虑周到的of you to turn down the radio while your sister is still ill in bed. 这是体贴你调低收音机，你的妹妹还在床上生病。
7.It‘s not quite certain 肯定that he will be present at the meeting. 这不是肯定的是，他将出席会议8.It was natural (自然)that he count(计算) the days before going home.9.when she saw the clouds(乌去密布) she went back to house to fetch(取) her umbrella(伞).10.The metals which we find in the earth include(包括) iron , lead and copper. 在我们地球上发现金属包括有铁，铅和铜11.Your hair needs to be cut(剪) ;would you like me to do it for you..12.It was difficult难to guess猜测what her reaction反应to the news消息would be.13.Contrary相反to your prediction预言, they lost the game..14.We say that a person has good manners if he or she is polite , kind and helpful to others. 我们说一个人具有良好的风度，如果他或她是有礼貌，善良和乐于助人。
电力职称英语试题及答案
电力职称英语试题及答案一、选择题（每题2分，共20分）1. The primary function of a transformer is to:A. Convert voltage levelsB. Amplify electrical signalsC. Rectify alternating currentD. Filter electrical noise答案：A2. In an electric power system, the term "load" refers to:A. The source of electrical powerB. The electrical equipment that consumes powerC. The transmission lines that carry powerD. The protective devices for circuits答案：B3. Which of the following is not a type of electrical fault?A. Short circuitB. OverloadC. Ground faultD. Surge protection答案：D4. The unit of electrical power is the:A. VoltB. AmpereC. WattD. Ohm答案：C5. The purpose of a circuit breaker is to:A. Provide a path for excess currentB. Maintain a constant voltage levelC. Protect the circuit from overcurrentD. Convert AC to DC答案：C二、填空题（每题1分，共10分）6. The three main components of an electric power system are the _______, transmission, and distribution.答案：generation7. The SI unit for electrical resistance is the _______.答案：ohm8. In a parallel circuit, the total resistance is always_______ than any individual resistance.答案：lower9. The process of converting mechanical energy intoelectrical energy is known as _______.答案：generation10. A fuse is a type of protective device that operates by_______ when the current exceeds a safe level.答案：melting三、简答题（每题5分，共30分）11. Explain the difference between AC and DC power systems. 答案：AC (Alternating Current) power systems use a current that regularly reverses direction, while DC (Direct Current) power systems use a current that flows in one direction only.12. What is the significance of Ohm's Law in electrical engineering?答案：Ohm's Law is fundamental in electrical engineering asit relates the voltage (V), current (I), and resistance (R) in a simple electrical circuit, expressed as V = IR, allowing for calculations of these quantities.13. Describe the role of a generator in an electric power system.答案：A generator is a device that converts mechanical energy into electrical energy, serving as the primary source of power in an electric power system.14. What are the functions of a capacitor in an electrical circuit?答案：A capacitor in an electrical circuit can store energy, filter signals, and block direct current while allowing alternating current to pass.四、计算题（每题5分，共20分）15. Calculate the total resistance in a circuit with two resistors in parallel, where R1 = 100 ohms and R2 = 200 ohms.答案：\( R_{total} = \frac{R1 \times R2}{R1 + R2} = \frac{100 \times 200}{300} = \frac{20000}{300} = 66.67 \) ohms16. If a 12-volt battery is connected to a 3-ohm resistor, what is the current flowing through the resistor?答案：\( I = \frac{V}{R} = \frac{12}{3} = 4 \) amperes17. What is the power consumed by a 5-ohm resistor with a current of 2 amperes flowing through it?答案：\( P = I^2 \times R = 2^2 \times 5 = 4 \times 5 = 20 \) watts18. If a 240-volt AC motor draws a current of 5 amperes, what is the apparent power?答案：\( S = V \times I = 240 \times 5 = 1200 \) volt-amperes五、论述题（每题10分，共20分）19. Discuss the importance of energy efficiency in power systems and how it can be achieved.答案：Energy efficiency is crucial in power systems as it reduces energy consumption, lowers operational costs, and decreases environmental impact. It can be achieved through various means such as using high-efficiency equipment, optimizing system operations, and implementing demand-side management strategies.20. Explain the concept of smart grids and their advantages over traditional power systems.答案：Smart grids are advanced power systems that use digital technology and automation to improve the efficiency, reliability, and sustainability of electricity production anddistribution. They offer numerous advantages over traditional systems, including better demand response, enhanced grid stability, and the ability to integrate renewable energy sources more effectively.。
电力职称英语考试单项选择汇总
电力职称英语考试单项选择汇总Passage 4 Power plantAccording to the mode of energy…… of capacity should not exceed two.1. √ Ba on energy conversion, power plants are divided into more than 7 categories.2. × A power plant tries to transform energy source into electric power.3. √ The power plant generating electricity and supplying steam is called a co-generation plant.4. × A power net plan for short and medium term is one of factors in lecting a site.the strokes5. √ Two important factors for a new plant plan are fuel supply and ash disposal.become的意思 6. × Environmental protection is less considered in building a new power plant.7. × Water sources and transportation conditions are not needed to consider in lecting a new site.8. √ The total capacity in a newly scheduled plant arranges from 1200MW to 3600MW.9. × The number of units exceeds more than six.10. √ The ranks of capacity should be limited within two.Passage 13 AustraliaAustralia is a vast continent……,if not months.1. × Australia is a large country and has a relativel large population2.√ The majority of people living in Australia are city dwellers3. × The delivery of education rvices to people living in remote areas is unimaginable for almost a century4.√ The attempt to provide educational rvices to distant dwellers did not take place until 19165. × The schoolwork was delivered and returned through aled roads,regular bus routes and air rvices in the beginningPassage 18 The obama administration’s bank rescue proposalAmong the criticisms of the obama administration’s bank rescue proposal……of us should follow.1. × The obama administration’s bank rescue proposal is criticized becau the amount of money is too huge.2. × The word "float"(para.3)means "to move without an aim".3.√According to the author, ordinary Americans don’t have much cash the days .4. × The bailout plan is so complex and risky that the world’s majorbanks utterly misjudged them.5.√ The last paragraph indicates that the baiout plan needs support from big investors.Passage 14 BiomassBiomass is a cost-effective source of energy.……of renewable energy.1.√As a source of energy ,biomass can bring the best possible profits for the lowest possible costs2.√One of the advantages of using biomass is that it is a convenient medium to store energy3. × Biomass doesn’t produce enough carbon dioxide and is harmless to the environment.4.√Despite its advantages ,biomass is not suitable for commercial uscs5. × Only trees and crops can be ud as biomass-fuels.Passage 10 ElectricityElectricity may be dangerous. …… him away from the power.1. × Electricity is not dangerous as people think.2. × Dry wood can carry electricity to the ground.3. √ Conductors like metal or water can carry electricity to the ground.4. × Human body is a good conductor becau it has 90% water in the5. √ You can u a hairdryer far from bath and water.6. √ We hands are good conductors for transmitting electricity.7. √ The best tool to push a shocked person away from the power is to u a non-conductor.模拟测试3-2For centuries, in the countries……Land of the White Elephant.Today, however, the story……very low national priority.How this reversal from……but sure-footed elephant.By 1950 the elephant population……a beast of burden declined.1. What can we know about African elephants from the passage? B.it…hard…2. Thailand was once called “Land of the White Elephant” becau＿B.white…1920s＿＿＿.3. Why is the Thai elephant “out of work”, according to the author? A.bec…owners4. Which of the following statements is true about the elephant population at various times? D.Today (150)5. The passage is most probably from＿C.a…report＿＿＿.Passage 9 Business and risksMarx once quoted a famous saying in …… is written by Carl Marx.1. √ The work Capitdism is written by Carl Marx.2. × For 20% profit, capital will take risks.3. √ For 100%, capital dares to break any human laws.4. × For 200%, capital dares to commit any crime and even risks being hanged.5. √ The pursuit of profits forces human beings to take any risks.6. × The pursuit of profit is much more encouraged than the pursuit of friendship.7. √ There are two ownerships existing in Chine economy.8. × Only bright manufacturer or manager can predict the future of his enterpris.Passage 15 Nuclear radiationNuclear power’s danger to health,.……by its grandparents.1.√The mystery about nuclear radation may come from the fact that it cannot be detected by human ns2. ×We cannot n radio activity without a radio receiver3.√Common radio waves are harmless to human beings and other things .4. × Even at the lowest levels, radiation will cau cancer by killing the healthy cells.5.√Victims of nuclear radiation may die of cancer years later.Passage 3 Optical fiber communicationOptical fiber communication is a kind of information…… is comparatively higher.1. √ A kind of information communication is optical fiber communication.animosity2. × The composite optical fiber ground wire is ldom ud in power system.3. √ One of the transmission tasks of the optical fiber main network is to transmit administration telephones from power system.4. √ Optical fiber communication has been the important communication method in power communication system.5. × Large capacity of communication is not one of the advantages of optical fiber communication.6. × The communication capacity of optical fiber is indirectly proportion to the carrier frequency.7. √ The carrier frequency of power line is more than 300KHz.8. × The carrier frequency of microwave is between 3000MHz and 5000MHz.9. √ The main problem of the fiber-optic channel is the high price of fiber-optic equipment.10. × The cables made by optical fiber are not expensive.Passage 1 Feature of power generationThe simultaneousness of the electric power generation means that the electric power generation, transmission, transformation, distribution………… The electric power system consists of power plants, transmission networks, distribution networks and the consu The unification of power system equipment…………It is simply called the power network.The features of a modern power network frame are: (1) (3)The voltage class are simplified.interest rates 1. × The electric power can be stored.2. √ The power system is made up of 4 parts.3. √ The unification of power system equipment is formed by 4 equipments.4. √ A power system is an undivided integer.5. × The power network can operate normally without the integration of other 3 equipments.6. √ A link line is called a transmission line.7. × A link line is formed by 3 power networks.8. √ An electric power network is simply called a power network.9. × The main network frame is formed by a weak EHV system.回收站英文10. × The networks are not cloly linked with each other.Passage 2 Types of circuit breakerThe high voltage circuit breaker is mainly compod of contactors, …… and SF6 circuit breaker.1. √ Contactors, arc-extinguishing elements, insulation material and operating mechanism form the high voltage circuit breaker.2. √ The insulation structure is make up of 3 parts.3. × The arc-extinguishing medium can be divided into only 3 parts.4. √ An oil circuit breaker means a circuit breaker with oil as arc-extinguishing and insulation medium.5. × A vacuum circuit breaker is not a circuit breaker with clo and open contactors in high vacuum.6. × A pure SF6 gas is not a good arc-extinguishing medium.7. √ The insulation strength of SF6 gas is higher than air and vacuum.8. √ An oil minimum circuit breaker is very safe in u.9. × An oil minimum circuit breaker has bad heat dissipation capability.10. √ An oil minimum circuit breaker is one of the mostly ud circuit breakers in the power grid.Passage 5 Selection of metal material for the boiler in units of1000MW grade.Taking a general view of the 1000MW …… must be adopted.1. √ The 10000MW grade high-efficiency supercritical unit ix designed and made in China.2. × The temperature of main steam and reheated steam reach basically between 570 to 650℃.3. √ The tube wall temperature of superheater and reheater can reach more than 600 to 650℃4. √ The anti-high temperature steam oxidation performance at tube inner surface is highly demanded.5. × The anti-high temperature flue gas corrosion performance at tube outside surface is not highly demanded.6. √ The temperature limit of T91 for u is abort 593℃.7. × The temperature limit of T92 for u is less 620℃.8. √ The temperature of austenite stainless steel for normal u is abort 650℃.9. × The temperature limit of austenite stainless steel is less than 700℃.10. × Only heat-resisting steel can be adopted for u.Passage 6 The role of the condenrThe condenr is a surface heat……from the exhaust steamtemperature.1. √ A condenr is a heat exchanger removing the vaporization heat from the exhaust steam and condensing the exhaust steam into water.旗标2. √ It is suggested that the water should not be cooled below the saturation temperature.鹿角菜3. × The saturation temperature would not remove excess energy from the system and reduce the overall efficiency.4. × It is unnecessary to reduce the steam to water so that it can be pumped back through the syste杨桃的英文boobiesm.5. × The condenr does not control back-pressure at the turbine exhaust.6. √ The important factor controlling the turbine backpressure is the temperature of the cooling water passing through the condenr tubes.7. √ The temperature of cooling water will increa its temperature between 15℃ and 20℃ as it pass through the condenr.8. √ The terminal difference means the temperature difference between the cooling water and the turbine exhaust steam.9. × The temperature increa of the cooling water and the terminal difference depend on 3 factors.10. × The exhaust steam temperature does not rely on the temperature of the cooling water which enters the condenr.Passage 7 Hydraulic structureThe lected type of dam of hydraulic power plant depends principally on topographic, …… be analyzed and studied.1. √ The type of dam for hydraulic power plant depends on many factors.2. √ The main purpo of the dam safety monitoring is to monitor the performance indexes.3. × The equipment installed inside the dam is to discover the normality of dam in time.the bird4. × Horizontal displacement is more important than vertical displacement.5. × Temperature stress and strain are the two main monitoring items of dam.6. √ The monitoring method is the suitable points in the dam and its foundation.7. × Some monitoring devices are movable for periodical supervision.8. × The monitoring result shall be analyzed and studied by computers.Passage 8 heat treatmentThe purpo of post-weld heat …… display device and control device.1. √ The post-weld heat treatments have two main purpos.2. √ One of the purpos is to diminish the residual stress in the welded joints.3. × The other purpo is to improve the organization of the welded joints.4. √ The welding crack can be classified into 5 categories.5. √ To change the internal structure of the work piece is one of purpos for heat treatment.6. × There are 5 kinds of steel heat treatment.7. √ The process of heat treatment include 4 procedures.8. × The electric resistance furnace is not widely ud.9. × Heat treatment furnaces are not compod of electric resistance furnace, combustion furnace and surface heating device.10. × The control device for heat treatment temperature is compod of temperature measuring element, and control device.Passage 11 Undera LifeThe undera word is ……becomes blue and green.1. √ Everything under the a becomes blue and green.2. √ Now people can dive into the water to explore the crets of the a.3. √ You can stay in deep blue a for a ling time if you have bottles ofair on your back.4. × It is warm but dark in deeper water.5. √ Under about 3000 feet, there is no light at all.6. × Many fish under deep water have eyes like normal fish in water.7. √ The a animals must follow the rule to eat or be eaten.。
电气英语试题及答案
电气英语试题及答案一、选择题（每题2分，共20分）1. Which of the following is not a type of electrical conductor?A. Copper wireB. GlassC. AluminumD. Graphite答案：B2. The unit of electric current is:A. VoltB. AmpereC. OhmD. Watt答案：B3. What is the term used to describe the flow of electric charge?A. VoltageB. CurrentC. ResistanceD. Power答案：B4. In an electrical circuit, what is the term for the total amount of electrical energy used?A. VoltageB. CurrentC. PowerD. Energy答案：D5. What is the basic unit of electrical resistance?A. OhmB. VoltC. AmpereD. Coulomb答案：A6. Which of the following is not a type of electrical energy source?A. Solar panelsB. Wind turbinesC. BatteriesD. Water heaters答案：D7. What is the term for the rate at which electric power is transferred by an electrical circuit?A. VoltageB. CurrentC. PowerD. Resistance答案：C8. The process of converting electrical energy into another form of energy is called:A. ConductionB. ConversionC. GenerationD. Transmission答案：B9. What is the term used to describe the potential difference between two points in an electrical circuit?A. CurrentB. VoltageC. PowerD. Resistance答案：B10. Which of the following is not a type of electricalcircuit component?A. ResistorB. CapacitorC. InductorD. Transformer答案：D二、填空题（每题2分，共20分）1. The electrical device that converts electrical energy into mechanical energy is called a ________.答案：motor2. The unit of electrical energy is the ________.答案：kilowatt-hour3. The electrical device that stores electrical energy is called a ________.答案：capacitor4. The electrical device that changes the voltage level in an electrical circuit is called a ________.答案：transformer5. The electrical device that protects the circuit from excessive current is called a ________.答案：fuse6. The process of converting mechanical energy intoelectrical energy is called ________.答案：generation7. The electrical device that allows current to flow in only one direction is called a ________.答案：diode8. The electrical device that changes alternating current (AC) to direct current (DC) is called a ________.答案：rectifier9. The electrical device that resists the flow of electric current is called a ________.答案：resistor10. The electrical device that stores electrical energy in a magnetic field is called an ________.答案：inductor三、简答题（每题10分，共30分）1. Explain the difference between voltage and current in an electrical circuit.答案：Voltage is the potential difference between two points in an electrical circuit, measured in volts (V). It is the force that pushes electric charge through a conductor. Current, on the other hand, is the flow of electric charge, measured in amperes (A). It is the rate at which electric charge passes a given point in the circuit.2. What is the function of a circuit breaker in an electrical system?答案：A circuit breaker is a safety device designed toprotect an electrical circuit from damage caused by excess current. It automatically cuts off the flow of electricity when the current exceeds a safe level, preventing potential hazards such as electrical fires or damage to appliances.3. Describe the role of a generator in an electrical power system.答案：A generator is a device that converts mechanical energy into electrical energy. In an electrical power system,generators are used to produce electricity by converting the kinetic energy from rotating turbines into electrical energy. This electricity is then transmitted and distributed to consumers through a network of power lines.。