职称英语考试理工类(C级)试题
职称英语考试理工类(C级)试题6
第三篇Computers in Cars
You’re far from home on a lonely road.Shadowy forests stretch away on both sides.Athick mist(雾)makes it difficult to see far beyond your car’s windshield (挡风玻璃).
“Can this be route 90A?”you wonder.If it is ,you should be near a town.Yet there’s no hint of one. Night is closing in.And you’re low on gasoline.
This is a situation where an in -car computer that can navigate would be a big help.
A car computer that navigates?Yes!Such computers exist . Several experimental models are being tested by General Motors,Ford,Chrysler,and several foreign car makers.These computers vary in detail. But they all contain series of maps on videodiscs or videotapes.For example,one computer system contains 13,300 maps covering the continental US.
Before starting out on a trip,a driver can type in the code for the region he or she plans to drive through.The computer then shows a map of theat region.At the same time,a tiny radio receiver linked to the computer goes to work. It picks up signals from navigation satellites such as the NA VSTAR ing these signals,the computer shows the car’s position at all times and displays this position on the map.The computer can dalso calculate and display the best route to follow.
A navigation computer may also receive and use data about road construction, weather conditions,and traffic jams.This information would be displayed to the driver and the computer would also use the information to work out alternate(交替的)routes.
Most cars nowadays also contain computers that help cars run more efficiently. Microprocessors(微处理机)control certain engine functions by regulating the mixing
of fuel.Data on car speed,oil pressure,revolutions per minute,enginete mperature , and fuel level can be displayed as digital data (numbers) or warning lights.
Some auto designers suggest that a central computer display be used to clearly present such timely information as car speed and fuel level.Warning lights would indicate a drop in oil pressure or a sudden rise in engine temperature.To get more information on these conditions,the driver could call it up on the computer display screen.When needed,the computer could be “asked”to provide navigation aid or information about the car’s condition.
41 By describing a typical situation of a lost driver on the road,the arthor intends to
A make us believe how complex the highway computer network is.
B let us know how in-car computers are linked to road signs.
C show us how helpful a navigation computer can be.
D tell us that NA VSTAR has come into use.
42 The word “navigate”in Paragraph 3 meadns
A “help one comtrol the traffic”.
B “help one find one’s way”.
C “give a ship correct information about its course”.
D “direct a plande to its destination.”
43 The dnavigation computers have one thing in common:they all
A contain series of maps on videodisce or videotapes.
B contain 13,300 maps covering the continentalUS.
C can be obtained free of charge.
D cost a lot of money.
44 Without signals from navigation satellites,the in-car computer
A would still be able to locate the car’s position at all times.
B would fail to locate the car’s position.
C could still work out the best route to follow.
D would seek help from the radio receiver linked to it .
45 Of the following functions,which is NOT possessed by the navigation computer?
A Showing a map of the region a driver plans to drive through.
B Predicting a car crash on the road.
C Getting information about road construction,weather conditions,and traffic jams.
D Showing the car’s position at all times and displaying it on the map.。
职称英语考试理工类(C级)试题
职称英语考试理工类(C级)试题及答案5第4部分：阅读理解（第31—45题，每题3分，共45分）下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。
请根据文章的内容，从每题所给的4个选项中选择1个答案，涂在答题卡相应的位置上。
第一篇Eta CarinaeAs possibly the galaxy’s (银河) most massive star, Eta Carinae is now engaging in some very unusual behaviour. Australian astronomers, being in the Southern Hemisphere (半球), are able to observe it clearly.In the 19th century, Eta Carinae was for a time the third brightest star in the sky. It has now become less bright so that binoculars (双筒望远镜)are ne eded to see it. “It seems to be brightening and becoming less bright over a period of many years”, said Dr Bob Duncan from the Australia Telescope National Facility.While it is not unusual for stars to vary in brightness, the period is usually much s horter. “Since 1992 it has become four times brighter, and then last year it began to drop dramatically,” he said.The problem in observing Eta Carinae is that it has been surrounded by a cloud of gas and dust, making it hard to see the star directly. However, radio waves and infrared light (红外线)can pass through this cloud, so telescopes that receive these wavelengths can observe what is occurring.Eta Carinae is of particular interest to astronomers because it seems to be in its death throes（剧痛）. Being so large it will end up as a supernova (超新星). There has not been a supernova in our galaxy since the invention of the telescope. While a 1987 explosion in a nearby galaxy gave astronomers plenty of valuable data, they arehungry for an even closer look.Eta Carinae has other unique features, and is the only star known to produce an ultraviolet(紫外线)laser that is brighter than that produced by the Sun. Lasers have been observed in other frequencies from a few stars.31. Eta Carinae is now engaging inA. some very common behaviourB. some very dull behaviourC. some very frightening behaviour.D. some very strange behaviour32. The word “period” in Paragraph 3 means the length of timeA. over which star vary in brightnessB. for which Eta carinae’s brightening lasts.C. Eta carinae takes to become a supernova.D. it takes the laser from Eta carinae to travel to the earth.33. Eta Carinae is hard to observe becauseA. it is too far away.B. there is too much dust and gas around it.C. the binoculars are not powerful enough.D. it does not send out infrared light.34. Astronomers are particularly interested in Eta Carinae becauseA. it is in its final stage.B. it is a supernova.C. it exploded in 1987.D. it is brighter than the sun.35. Which of the following statements about Eta Carinae is NOT true?A. It will end up as a supernova.B. It can be seen only through binoculars.C. It is the only star that sends out an ultraviolet laser.D. Its ultraviolet laser is brighter than that of the Sun.。
2023年职称英语考试理工类C级试题答案(2)
2023年职称英语考试理工类C级试题答案(2)第3部分：概括大意与完成句子（第23～30题，每题1分，共8分）下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第2～5段每段1选择个最佳标题；（2）第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Teach Your Child Science1 It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers. Don#39;t only give facts， but try to give explanations as well.2 Science is not just knowledge； it is a way of thinking，a method of finding out about the world. We see something. We try to explain it， and we test our idea by setting up an experiment. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat， so you close the window， but leave the cat in and see what happens （you can also try leaving the window open and shutting the cat out）。
职称英语考试理工类(C级)真题
职称英语考试理工类(C级)真题及答案7第6部分：完型填空(第51～65题，每题1分，共15分)下面的短文有15处空白，请根据短文内容为每处空白确定1个选项。
Biological Identification Technologies When a person walks，the movement of his head，trunk，and limbs(肢体)are a reflected in changes in his puter stores these database(数据库).Later，the computer can accurately to these changes.This is a new biological identification quickly identify an examinee without disturbing him.Eve body’S voice is_______(51)into a_______(52)him according________(53)and it can_________(54).When a person’S voice is recorded by an instrument，his voice frequency spectrum(频谱)is called sound print fingerprint，eye.body’S sound print is different.How can a computer his sound? First，his voice is recorded_________(55)a fingerprint, everybody’s sound print is different. How can a computer________(56)his sound? First, his voice is recorded,________(57)allows the computer to become familiar with his voice.It will then turn his sound characteristics into a series of digits(数字).These are the _________(58)on which the computer can distinguish his voice from another’s.We often bring ID.cards，work cards，or driving licenses with US to _________(59)our identity.If all these cards are forgotten or lost，how can we prove whom we are? in________(60)，it’s not d ifficult to prove whom you are________(61)your body itself has identifying markers.Some are physiological(生理的)features，such as fingerprints，一sounds，facial(面部的)types and eye color.The computer can________(62)to identify you.Suppose your features have already been________(63)in the database.To identify you.we have to take your picture with a camera and send it to a computer for________(64).First，the computer needs toreposition this picture according to the position of your eyes，and then starts to read the ________(65)of your physiological features such as the ratio of your pupil to the whites of your eyes and the shape of your nose.Next，it seeks matching records from the database.Finally, it makes a decision.51. A.parts B.changes C.positions D.directions52. A.identify rm C.affect D.bother53. A.number B.card C.level D.method54. A.soft B.loud C.unique D.clear55. A.With B.Like C.For D.As56. A.distinguish B.make C.gather D.develop57. A.who B.where C.that D.which58. A.reasons B.causes C.basis D.origin59. A.prove B.create C.hide D.protect60. A.all B.fact C.summary D.casewww.61. A.unless B.though C.so D.because62. A.stop B.help C.mean D.continue63. A.stored B.borrowed C.searched D.linked64. A.printing B.researching C.processing D.filing65. A.point B.picture C.size D.message。
职称英语理工类C级考试真题
xx年职称英语理工类C级考试真题第一局部：词汇选项1. The weather last summer was awful.A. badB. fairC. dryD. hot参考答案：A2. The law carries a penalty of up to three years in prison.A. messageB. guiltC. obligationD. punishment参考答案：D3. My piano playing has improved significantly since I had a new teacher.A. definitelyB. generallyC. certainlyD. greatly参考答案：D4. There is a need for radical changes in education.A. revolutionaryB. long-termC. short-termD. systematic参考答案：A5. It frustrates me that I‘m not able to put any of my ideas into practice.A. discouragesB. showsC. surprisesD. frightens参考答案：A6. I realized to my horror that I had forgotten the present.A. limitB. fearC. powerD. fool参考答案：B7. He tried to assemble his thoughts.A. gatherB. clearC. shareD. spare参考答案：A9. The doctors did not reveal the truth to him.A. hideB. handleC. discloseD. establish参考答案：C10. Railways are the most important mode of transport for the economy.A. wayB. factorC. objectiveD. source参考答案：A11. He said some harsh words about his brother.A. properB. unkindC. normalD. unclear参考答案：B12. Under the terms of the contract,you must give 3 months‘ notice before you leave.A. subjectsB. expressionsC. wordsD. rules参考答案：D13. Don't temp thieves by leaving valuables clearly visible.A. alarmB. catchC. spotD. attract参考答案：D14. When did you first encounter these difficulties?A. createB. presentC. experienceD. resolve参考答案：C15. We need to identify the potential problems.A. possibleB. mainC. immediateD. Common参考答案：A。
职称英语考试理工类(C级)试题
职称英语考试理工类(C级)试题7第5部分：补全短文（第46~50题，每题2分，共10分）阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。
请将答案涂在答题卡相应的位置上。
Home SchoolingAll children in the United States have to receive an education，but the law does not say they have．to be educated at schoo1．A number of parents prefer not to send their children to schoo1．(46)There are about 300，000 home-schoolers in the United States today．Some parents prefer teaching their children at home because they do not believe that public schools teach the correct religious values；others believe they call provide a better educational experience fortheir children by teaching them at home．(47) David Guterson and his wife teach their three children at home．Guterson says that his children leam very differently from children in schoo1．(48)For example，when there is heavy snowfall on a winter day,it may start a discussion or reading about climate，snow removal(去除)equipment，Alaska，polai bears(北极熊)，and winter tourism．A spring evening when the family is out watching the stars is a good time to ask questions about satellites and the space program (49)Home schooling is often more interesting than regular schools，but critics say that home-schoolers are outsiders who might be uncomfortable mixing with other people in adult life．(50)However,most parents don’t have the time or the desire to teach their children at home，so schools will continue to be where most children get their formal education.A Interestingly,results show that home-schooled children quite often do better thanaverage on national tests in reading and math.B Critics also say that most parents are not well qualified to teach their children．C Learning starts with the children’s interests and questions.D Children who are edu cated at home are known as”home．schoolers．”E In some countries，however,children are educated by their parents.F If the Brazilian rain forests are on the TV news．it could be a perfect time to talk about how rain forests influence the climate，and how deserts are formed．第6部分：完形填空(第5l~65题，每题1分，共15分)阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个答案，涂在答题卡相应的位置上。
职称英语 理工类C级试题
职称英语理工类C级试题Water-the Issue of This CenturyThe world is running short of fresh water. Populations are growing bigger and thirstier（渴的）, with the result that freshwater is being increasingly scarce （缺乏）. Half the world's wetlands have disappeared during the last century, while estimates suggest that water use will rise by 50% in the next 30 years.The World Bank report estimates that as much as half of the world's population, concentrated in Africa, the Middle East and south Asia, will face 'severe water shortages' by 2025. Local water conflicts and the loss of freshwater ecosystems appear large in some regions.A similar picture emerges from the globe's salt water regions. Three-quarters of the world's people may live within 100km of the sea in 2025, putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries （渔业） are exploited at or beyond their sustainable limits, and half the world's coral reefs （珊瑚礁） may perish in 100 years. Almost 60% of coral reefs and 34% of fish species are at risk from human activities, the Bank says.The report concludes that there is ample evidence to justify immediate and coordinated action to safeguard supplies and use water more efficiently.Fresh water consumption is rising quickly, and the availability of water in some regions is likely to bee oneof the most pressing issues of the 21st century.A third of the world's population - around two billion people - live in countries that are experiencing moderateto high water shortages. That proportion could rise to half or more in the next 30 years unless institutions （）change to ensure better conservation and allocation of water.China is one country where the portents （征兆） are gloomy. The most water-stressed country in East Asia, China is exploiting 44% of its usable water, a figure projectedto rise to 60% by 2021. Primary withdrawal of water of more than 60% is widely considered by water experts to exceedthe environmental carrying capacity of a river basin system. Although China's total use appears still to be reasonable,it has several basins that are severely stressed environmentally.Withdrawals exceed environmental limits in Afghanistan and Pakistan, and will exceed them in India by 2021. In the Middle East and North Africa, only Moroo has unexploited water resources. The rest have exceeded environmentallimits and many are mining aquifers （蓄水层） - bodies of water-bearing rock - the report says.1 It is estimated that water use will rise by 50% in the next 30 years.A RightB WrongC Not mentioned2 Most developed countries will face water shortages in 20 years.A RightB WrongC Not mentioned3 Most of the world's population may live within 100km of the sea in 2025.A RightB WrongC Not mentioned。
职称英语考试理工类(C级)试题
职称英语考试理工类(C级)试题5第二篇A Thirsty WorldThe world is not only hungry，it is also thirsty for water．This may seem strange to you，since nearly 75％of the earth’s surface is covered with water．But about 97％of this huge amount is sea-water，or salt water．Man can only drink and use the other 3％-the flesh water that comes from rivers，lakes，underground，and other sources．And we cannot even use all of that，because some of it is in the form of icebergs(冰山)and glaciers(冰川)．Even worse，some of it has been polluted．At the moment，this small amount of fresh water is still enough for us．However,our need for water is increasing rapidly．Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on．A limited water supply would have a bad effect on agriculture and industry．In addition to stopping wasting our precious water,one useful step we should take is to develop ways of reusing it．Experiments have already been done in this field，but only on a small scale.Today,in most large cities，water is used only once and it eventually returns to the sea or runs into underground storage tanks．But it is possible to pipe water that has been used to a purifying(净化)plant．There it can be filtered(过滤)and treated with chemicals so that it can be used againjust as if it were flesh from a spring．But even if every large city purified and reused its water,we still would not have enough.Where could we turn next?To the oceans!A11 we’d have to do to make use of the vast amount ofsea-water is-remove the salt．This salt-removing process is already m use in many parts of the world．So if we take all these steps，we’ll be in no danger of drying up !36 The phrase’’the world”in the first line of the passage ref ers toA “man”．B “you”．C “woman”.D “they”．37 What percentage of the earth’s water can man actually use at present?A Nearly 75 percent．B About 97 percent．C Exactly 3 percent．D Less than 3 percent．38 According to the passage，we can avoid a worldwide water shortage in the furore byA increasing rainfall．B reusing water and utilizing sea-water．C cutting down our consumption of water．D reducing the number of factories producing steel．39 Which of the following statements，according to the passage，is NOT true?A A limited water supply will affect industrial production．B Every large city purifies and reuses its water．C Purified water is not exactly as flesh as spring water．D Oceans are the largest water source．40 According to the passage，sea-water can be tureed into flesh water byA heating it up．B treating it with chemicals．C taking salt out of it．D drying it up．。
职称英语等级考试试题、答案及题解理工类(C级)(2)
职称英语等级考试试题、答案及题解理工类(C级)(2)23 paragraph 124 paragraph 225 paragraph 326 paragraph 4A Ford's FollowersB The Assembly LineC Ford's Great DreamD The Establishment of the CompanyE Ford's Biggest ContributionF Ford's Great Talent27 The assembly line made it possible to28 Ford was the first to adopt29 Higher wages enabled many people to30 Ford's higher-wage and lower-cost strategy was stronglyA criticized by the mediaB the low wage in the auto industryC own a carD Produce cars in large numbersE the 8-hour-shift practiceF combined technology and market第4部分：阅读理解(第31～45题，每题3分，共45分)下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。
请根据文章的内容，从每题所给的4个选项中选择1个答案，涂在答题卡相应的位置上。
第一篇Sleepless at NightIt was a normal summer night．Humidity(湿气)hung in the thick air．I couldn't go to sleep．partly because of my cold and partly because of my expectations forthe next day．My mum had said that tomorrow was going to be a surprise．Sweat stuck to my aching body．Finally, I gathered enough strength to sit up．I looked out ofmy small window into the night．There was a big bright moon hanging in the sky, giving off amagic light．。
职称英语理工类C级-49_真题-无答案
职称英语理工类C级-49(总分100,考试时间90分钟)第1部分：词汇选项下面每个句子中均由1个词或短语划有底横线，请为每处划线部分确定1个意思最接近的选项。
1. I can't put up with my neighbor's noise any longer, it's driving me mad.A. tolerate B. generate C. reduce D. measure2. Regular visits from a social worker can be of immense value to old people living alone.A. equal B. immediate C. moderate D. great3. He was rather vague about the reasons why he never finished school.A. bright B. unclear C. general D. bad4. I want to provide my boys with a decent education.A. special B. private C. general D. good5. Sleep stairs can present a particular hazard to older people.A. picture B. danger C. evidence D. case6. Our arrangements were thrown **plete turmoil.A. doubt B. relief C. failure D. confusion7. He was weary of the constant battle between them.A. fond B. proud C. tired D. afraid8. Your dog needs at least 20 minutes of vigorous exercise every day.A. energetic B. free C. physical D. regular9. I enjoyed the play—it had a clever plot and very funny dialogues.A. boring B. original C. humorous D. long10. Lower taxes would spur investment and help economic growth.A. attract B. spend C. encourage D. require11. He demolished my argument in minutes.A. supported B. disproved C.disputed D. accepted12. Many cities have restricted smoking in public places.A. limited B. allowed C. stopped D. kept13. The two banks have announced plans to merge nest year.A. combine B. sell C. close D. break14. The project required ten years of diligent research.A. hardworking B. social C. basic D. scientific15. He was kept in appalling conditions in prison.A. necessary B. terrible C. critical D. normal第2部分：阅读判断Europa's Watery under WorldEuropa, one of Jupiter's 63 known moons, looks bright and icy on the surface. But appearances can be deceiving: Miles within its cracked, frigid shell, Europa probably hides giant pools of liquid water. Where scientists find liquid water, they hope to find life as well.Since we can't go diving into Europa's depths just yet, scientists instead have to investigate the moon's surface for clues to what lies beneath. In a new study, scientists investigated one group of strange ice patterns on Europa and concluded that the formations mark the top of an underground pool that holds as much water as the U. S. Great Lakes.Pictures of Europa, which is slightly smaller than Earth's moon, clearly show a tangled, icy mishmash of lines and cracks known as "chaos terrains." These chaotic places cover more than half of Europa. For more than 10 years, scientists have wondered what causes the formations. The new study suggests that they arise from the mixing of vast underground stores of liquid water with icy material near the surface.For scientists who suspect that Europa also may be hiding life beneath its icy surface, the news about the new lake is exciting."It would be great if these lakes harbored life, " Britney Schmidt, a planetary scientist who worked on the study, told Science News. "But even if they didn't, they say that Europa is doing something interesting and active right now. "Schmidt, a scientist at the University of Texas at Austin, and her colleagues wanted to know how chaos terrains form. Since they couldn't rocket to Europa to see for themselves, they searched for similar formations here on Earth. They studied collapsed ice shelves in Antarctica and icy caps on volcanoes in Iceland. Those features on Earth formed when liquid water mixed with ice. The scientists now suspect something similar might be happening on Europa: that as water and ice of different temperatures mingle and shift, the surface fractures. This would explain the jumbled ice sculptures."Fracturing catastrophically disrupts the ice in the same way that it causes ice shelves tocollapse on Earth, " Schmidt told Science News. She and her team found that the process could be causing chaos terrains to form quickly on Europa.The new study suggests that on this moon, elements such as oxygen from the surface blend with the deep bodies of water. That mixture may create an environment that supports life.16. The liquid water of an underground pool of Europa is estimated to be equivalent to the water of the U. S. Great lakes.A. Right B. Wrong C. Not mentioned17. The strange ice patterns on Europa are formed as a result of a mixing underground water pool.A. Right B. Wrong C. Not mentioned18. Europa is the most recently discovered one among Jupiter's 63 known moons.A. Right B. Wrong C. Not mentioned19. The size of Europa is a bit larger than that of Earth's moon.A. Right B. Wrong C. Not mentioned20. Schmidt and her colleagues are the first group of scientists studying Europa.A. Right B. Wrong C. Not mentioned21. The formations on Europa's surface are rather unique in the universe.A. Right B. Wrong C. Not mentioned22. The existence of liquid water is a necessity for a life-supportA. Right B. Wrong C. Not mentioned第3部分：概括大意与完成句子Natural Gas1. Natural gas is produced from reservoirs deep beneath the earth's surface. It is a fossil fuel, meaning that it is derived from organic material buried in the earth millions of years ago. The **ponent of natural gas is methane.2. The popularity and use of clean natural gas has increased dramatically over the past 50 years as pipeline infrastructure has been installed to deliver it conveniently and economically to millions of residential, commercial and industrial customers worldwide. Today, natural gas services available in all 50 states in the U.S., and is the leading energy choice for fueling American homes and industries. More than 65 million American homes use natural gas. In fact, natural gas is the most economical source for home energy needs, costing one-third as much as electricity. In addition to heating homes, much of the gas used in the United States is used as a raw material to manufacture a wide variety of products, from paint to fibers for clothing, to plastics for healthcare, computing and furnishings. Natural gas is also used in a significant number of new electricity-generating power plants.3. Natural gas is one of the safest and cleanest fuels available. It emits less pollution than otherfossil fuel sources. When natural gas is burned, it produces mostly carbon dioxide and water vapour—the same substances emitted when humans exhale. Compared with some other fossil fuels, natural gas emits the least amount of carbon dioxide into the air **busted, making natural gas the cleanest burning fossil fuel of all.4. The United States consumes about one-third of the world's natural gas output, making it the largest gas-consuming region in the world. The U.S. Department of Energy Information Administration forecasts that natural gas demand will grow by more than 50 percent by 2025.5. There are huge reserves of natural gas beneath the earth's surface. The largest reserves of natural gas can be found in Russia, West and North Africa and the Middle East. LNG has been produced domestically and imported in the United States for more than four decades. Today, the leading imports of LNG are Japan, Korea, France and Spain.23. Paragraph 2 ______. A. Popularity and use of natural gas B. Natural gas reserves and supply C. Natural gas prices D. Clean fuel of choice E. Disadvantages of natural gas F. Natural gas consumption24. Paragraph 3 ______.25. Paragraph 4 ______.26. Paragraph 5 ______.27. Natural gas is stored deep ______. A. over the past 50 years B. beneath the earth's surface C. by more than 50 percent D. for more than four decadesE. as a raw materialF. for home energy needs28. Natural gas is recognized as the most economical energy source ______.29. When manufacturing many products, **monly use natural gas ______.30. It is estimated that by 2025 that natural gas demand in the United States will increase ______.第4部分：阅读理解下面有3篇短文，每篇短文后有5道题。
职称英语等级考试试题、答案及题解理工类(C级)(4)
职称英语等级考试试题、答案及题解理工类(C级)(4)满分100分，其中：l一15每题。
1分，16-30每题1分03l一45每题3分；46一-50每题2分；51-65每题1分。
1．A 2.B 3.C 4.D 5.D6.C7.B8.A9.B 10.C11.D 12.C 13.B 14.A 15.B16.A 17.C 18.B 19.A 20.B21.C 22.A 23.F 24.B 25.E26.C 27.D 28.E 29.C 30.A31.C 32.C 33.A 34.B 35.B36.C 37.B 38.A 39.D 40.C41.B 42.C 43.A 44.D 45.C46.C 47.E 48.B 49.F 50.D51.B 52.D 53.A 54.C 55.B56.A 57.B 58.C 59.A 60.B61.A 62.B 63.C 64.D 65.D第1部分：词汇选项2004年职称英语等级考试理工类(C级)题解1 答案为A。
"certain"和"sure"都有"肯定"的意思，替换后句法上也是一个合格的句子。
2 答案为B。
"set up"和"establish"同义，都是"建立"的意思，可互换而不改变句子的意思。
．，3 答案为c。
"happen"和"occur-"都有"发生"的意思，而且都是不及物动词，因此可替换。
4 答案为D。
"bear"是"能承受"的意思，与"endure"意思相同。
在该句子中，"endure"替换"。
Bear"不改变原来的句子的意思。
5 答案为D。
"firm"和"company"都有"公司"的意思。