2020职称英语理工类A真题及答案.doc
2020年职称英语理工A概括大意真题及答案
2020年职称英语理工A概括大意真题及答案Geothermal(地热)Energy1.Since heat naturally moves from hotter regions to cooler ones, the heat from the earth's center flows outwards towards the surface. In this way, it transfers to the next layer of rock. If the temperature is high enough, some ofthis rock melts and forms magma(岩浆). The magma ascends in its turn towards the earth's surface. It often remains well below the earth's surface, creating vast areas of hot rock. In such regions, there are deep cracks, which allow rainwater to descend underground. Some of the heated rainwater travels back up to the earth's surface where it will appear as a hot spring. However, if this ascending hot water reaches a layer of impermeable(不可渗透的)rock, it remains trapped, forming a geothermal reservoir. If geothermal reservoirs are close enough to the surface, they can be reached by drilling wells. Hot water and steam shoot up the wells naturally, and can be used to produce electricity in geothermal power plants.2.A few geothermal power plants depend on dry-stem reservoirs which produce steam but little or no water. In these cases, the steam is piped up directly to provide the power to spin a turbine generator. The first geothermal power plant, constructed at Lardarello in Italy, was of this type, and is still producing electricity today.3.Most currently operating geothermal power plants are either "flash" steam plants or binary(双重的)plants. Flash plants produce mainly hot water ranging in temperature from 300° to 700°Fahrenheit. This water is passed through one ortwo separators where released from the pressure of the underground reservoir, it "flashes" or boils into steam Again, the force of this steam provides the energy to spin theturbine and produce electricity. The geothermal water and steam are then reinjected directly back down into the earthto maintain the volume and pressure of the reservoir. Gradually they will be reheated and can then be used again.4.A reservoir with temperatures below 300° Fahrenheit is not hot enough to flash steam but it can still be used to generate electricity in binary fluid. The steam from this is used to power the turbines. As in the flash steam plant, the geothermal water is recycled back into the reservoir.23.【题干】Paragraph1_____【选项】A.Dry steam plantsB.Binary plantsC.Origin of geothermal energyD.Generation of electricityE.Flash steam plantsF.Recyclable water and steam【答案】C【解析】24【题干】Paragraph2_____【选项】A.Dry steam plantsB.Binary plantsC.Origin of geothermal energyD.Generation of electricityE.Flash steam plantsF.Recyclable water and steam 【答案】A【解析】25【题干】Paragraph3_____【选项】A.Dry steam plantsB.Binary plantsC.Origin of geothermal energyD.Generation of electricityE.Flash steam plantsF.Recyclable water and steam 【答案】E【解析】26【题干】Paragraph4_____【选项】A.Dry steam plants。
2020年职称英语考试真题(理工类A级)
2020年职称英语考试真题(理工类A级) Older Volcanic EruptionsVolcanoes were more destructive in ancient history, not because they were bigger, but becausethe carbon dioxide they released wiped out life with greater ease.Paul Wignall from the University of Leeds wasinvestigat,ing the link between volcaniceruptions and mass extinctions. Not all volcanic eruptions killed- off large numbers of animals, butall the mass extinctions over the past 300 million years coincided with huge formations of volcanicrock. To his surprise, the older the massive volcanic eruptions were, the more.damage they seemedto do. Hecalculated the "killing efficiency" for these volcanoes by comparing the proportion of lifethey killed off with the volume of lava that they produced. He found that size for size, oldereruptions were at least 10 times as effective at wiping out life as their more recent rivals.The Permian extinction' ,for example, which happened 250 million years ago, is marked byfloods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Thosevolcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide. Theglobal warmingthat followed wiped out 80 per cent of all manne genera atthe time, and it took 5million years for the planet to recover. Yet 60 million years ago, there was another huge amount ofvolcanic activity and global warming but no mass extinction. Some animals did disappear but thingsreturned to normal within ten thousands of years. "The most recent oneshardly have an effect atall.”Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago,because many scientists believe it was primarily caused by the impact of an asteroid. He thinks thatolder volcanoes had more killing power because more recent life forms were better adapted todealing with increased levels of C02.Vincent Courtillot, director of the Paris Geophysical Institute in France, says that Wignall'sidea is provocative. But he says it is incredibly hard to do these sorts of calculations. He points outthat the killing power of volcanic eruptions depends on how long they lasted. And it is impossible totell whether the huge blasts lasted for thousands or millions of years. He also adds that it is difficultto estimate how much lava prehistoric volcanoes produced, and that lava volume may notnecessarily correspond to carbon dioxide emissions.。
职称英语等级理工类(A级)试题考试试题答案及题解
职称英语等级理工类(A级)试题考试试题答案及题解3第3部分：概括大意与完成句子(第2卜30题，每题1分，共8分) 阅读下面这篇短文，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1～4段每段选择1个正确的小标题；(2)第27~30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。
请将答案涂在答题卡相应的位置上。
Cloning(克隆)：Future Perfect?1 A clone is all exact copy of a plant or animal produced from any one cell. Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997，research into cloning has grown rapidly．In May 1998，scientists in Massachusetts managed to create two identical calves(牛犊)using cloning technology．A mouse has also been cloned successfully，But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement：“We will have managed to clone a human being within the next two years，”he told the world．2 Seed’S announcement provoked a lot of media attention，most of it negative．In Europe，nineteen nations have already signed an agreement banning human cloning and in the US the President announced：”We will be introducing a law to ban all human cloning and many states in the US will have passed anti-cloning laws by the end of the year．’’3 Many researchers are not so negative about cloning，They are worried that laws banning human cloning will threaten important research．In March，The New England Journal of Medicine called any plan to ban research on cloning humans seriously mistaken．Many researchers also believe that in spite of attempts to ban it，humancloning will have become routine by 2010 because it is impossible to stop the progress of science．4 Is there reason to fear that cloning will lead to a nightmare world? The public has been bombarded(轰炸)with newspaper articles，television shows and films，as well as cartoons．Such information is often misleading，and makes people wonder what on earth the scientists will be doing next．Within the next five to ten years scientists will probably have found a way of cloning humans. It could be that pretty soon we will be able to choose the person that we want our child to look like．But how would it feel to be a clone among hundreds，the anti-cloners ask．Pretty cool, answer the pr-cloners(赞成克隆的人)．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。
2020年职称英语理工类A级真题及答案(1)
B. attach
C. lose
D. understand
8. Forester stared at his car，trembling with rage.
A. turning
B. jumping
C. shaking
D. shouting
9. It is possible to approach the problem in a different way.
6. A young man is being hailed a hero tonight after rescuing two children.
A. reported
B. praised
C. proved
D. caught
7. At that time，we did not fully grasp the significance of what had happened.
A. simplifies
B. evaluates
C. criticizes
D. examines
14. At 80，Peck was still vigorous and living in Paris.
A. happy
B. alone
C. busy
D. energetic
15. For some obscure reason，the simple game is becoming very popular.
3. I got a note from Moira urging me to get in touch.
A. instructing
B. pushing.
C. notifying
2020年职称英语理工A阅读判断真题及答案
2020年职称英语理工A阅读判断真题及答案阅读判断The Greatest of Victorian EngineersIn the hundred years up to 1860, the work of a smallgroup of construction engineers carried forward the enormous social and economic change that we associate with theIndustrial Revolution in Britain. The most important of these engineers was Isambard Kingdom Brunel, whose work in shipping, bridge-building, and railway construction, to name just three fields, both challenged and motivated his colleagues. He was the driving force behind a number of the hugely ambitious projects, some of which resulted in works which are still in use today.The son of an engineer, Brunel apprenticed with hisfather at an early age on the building of the Thames Tunnel.At the age of just twenty, he became engineer in charge ofthe project. This impressive plan to bore under the Thames twice suffered two major disasters when the river broke through into the tunnel when the second breach(决口)occurredin 1872, Brunel was seriously injured during rescue operation and further work was halted.While recovering from his injuries, Brunel entered a design competition for a new bridge over the Avon Gorge near Clifton. The original judge of the competition was Thomas Telford, a leading civil engineer of his day, who rejectedall entries to the competition in favor of his own design. After considerable scandal, a second contest was held and Brunel's design was accepted. For reasons of funding, however,exacerbated(加剧) by social unrest in Bristol, the project was abandoned in 1843 with only the towers completed. After Brunel’s death, it was decided to begin work on it again, partly so that the bridge could form a fitting memorial to the great engineer. The entire structure was finally completed in 1864. Today, the well-known Clifton Suspension Bridge is a symbol of Bristol, just as the Opera House is of Sydney. Originally intended only for horse-drawn traffic, the bridge now bears over four million motor vehicles a year.16.【题干】Brunel was an important airplane engineer in Britain during the Industrial Revolution.【选项】A.RightB.WrongC.Not mentioned【答案】C【解析】17.【题干】Brunel was involved less in railway construction than in other engineering fields.【选项】A.RightB.WrongC.Not mentioned【答案】C【解析】18.【题干】Brunel worked only on shipping, bridge-building and railway construction.【选项】A.RightB.WrongC.Not mentioned【答案】B【解析】19.【题干】Brunel work was largely ignored by his colleagues.【选项】A.RightB.WrongC.Not mentioned【答案】B【解析】20.【题干】Some projects Brunel contributed to are still in use today.【选项】A.RightB.Wrong。
(2020年编辑)年职称英语真题理工a(word完整版)
学派网2013年职称英语真题理工(A)第1部分：词汇选项（第1-15题，每题1分，共15分）下面每个句子中均有1个词或者短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。
1. The rules are too rigid to allow for humane error.A. inflexibleB. generalC. complexD. direct2. This species has nearly died out because its habitat is being destroyed.A. turned deadB. passed byC. carried awayD. become extinct3. The contract between the two companies will expire soon.A. shortenB. endC. startD. resume4. Three world-class tennis players came to contend for this title.A. argueB. claimC. wishD. compete5. The methods of communication used during the war were primitive.A. simpleB. reliableC. effectiveD. alternative6. Respect for life is a cardinal principle of the law.A. moralB. regularC. fundamentalD. hard7. The drinking water has become contaminated with lead.A. pollutedB. treatedC. testedD. corrupted8. Come out, or I’ll bust the door down.A. shutB. setC. breakD. beat9. She shed a few tears at her daughter’s wedding.A. wipedB. injectedC. producedD. removed10. They didn’t seem to appreciate the magnitude of the problem.A. existenceB. importanceC. causeD. situation11. The tower remains intact even after two hundred years.A. unknownB. unusualC. undamagedD. unstable12. Many experts remain skeptical about his claims.A. doubtfulB. untouchedC. certainD. silent13. The proposal was endorsed by the majority of members.A. rejectedB. submittedC. consideredD. approved14. Rumors began to circulate about his financial problems.A. sendB. spreadC. hearD. confirm15. The police will need to keep a wary eye on this area of town.A. nakedB. cautiousC. blindD. private第2部分：阅读判断（第16-22题，每题1分，共7分）New Understanding of Natural Silk’s MysteriesNatural silk, as we all know, has a strength that man-made materials have long struggled to match. In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough, MIT researchers have discovered that silk gets its strength from its weakness. Or, more specifically, its many weaknesses. Silk gets its extraordinary durability and ductility (柔韧性) from an unusual arrangement of hydrogen bonds that are intrinsically very weak but that work together to create a strong, flexible structure.Most materials —especially the ones we engineer for strength —get their toughness from brittleness. As such, natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight, ductility and high strength (pound for pound, silk is stronger than steel and far less brittle). But on its face, it doesn't seem that silks should be as strong as they are; molecularly, they are held together by hydrogen bonds, which are far weaker than the covalent (共价的) bonds found in other molecules.To get a better understanding of how silk manages to produce such strength through such weak bonds, the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals (纳米晶体) is such that the hydrogen bonds are able to work cooperatively, reinforcing one another against external forces and failing slowly when they do fail, so as not so allow a sudden fracture to spread across a silk structure.The result is natural silks that can stretch and bend while retaining a high degree of strength. But while that's all well and good for spiders, bees and the like, this understanding of silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture. Our best and strongest materials are generally expensive and difficult to produce (requiring high temperature treatments or energy-intensive processes).By looking to silk as a model, researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid, more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes (纳米碳管), think again. The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk —like carbon nanotubes. Super-silks are on the horizon.16. MIT researchers carry out the study to illustrate an ancient Chinese proverb.A. RightB. WrongC. Not mentioned17. Silk’s strength comes from its weak hydrogen bonds working together.A. RightB. WrongC. Not mentioned18. Biologists and engineers are interested in understanding natural silks because they are very light and brittle.A. RightB. WrongC. Not mentioned19. If the hydrogen bonds break due to external forces, they break fast.A. RightB. WrongC. Not mentioned20. The MIT team had tried different materials before they studies natural silk in the research.A. RightB. WrongC. Not mentioned21. Carbon nanotubes are currently the most popular topic in materials science.A. RightB. WrongC. Not mentioned22. It is indicated that materials stronger than natural silk can be expected in the future.A. RightB. WrongC. Not mentioned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个选项中为指定段落每段选择1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一个最佳选项。
2020职称英语理工类A真题及答案
2020职称英语理工类A真题及答案第1部分：词汇选项(第1～15题，每题1分，共15分)下面每个句子中均有1个词或短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。
1. I will not tolerate that sort of behavior in my class.A. controlB. observeC. regulateD. accept2. She showed a natural aptitude for the work.A. senseB. talentC. flavorD. taste3. Most people find rejection hard to accept.A. excuseB. clientC. refusalD. destiny4. The organization was bold enough to face the press.A. pleasedB. powerfulC. braveD. sensible5. They were locked in mortal combat.A. deadlyB. openC. actualD. active6. We were attracted by the lure of quick money.A. amountB. supplyC. temptD. sum7. The procedures were perceived as complex and less transparent.A. clearB. necessaryC. specialD. correct8. The Stock Exchange is in turmoil following a huge wave of selling.A. ServiceB. dangerC. disorderD. threat9. He believes that Europe must change or it will perish.A. surviveB. lastC. dieD. move10. There was a simultaneous trial taking place in the next build.A. fairB. full C .coexisting D. public11. They promote assimilation of ethnic groups into the main-stream culture.A. policyB. value C .equality D. integration12. A salesman’s cardinal rule is to satisfy customers.A. principalB. officialC. simpleD. legal13. I must compliment you on your handling of a very difficult situationA. silenceB. praise C .assure D. complain14. We lived for years in a perpetual state of fearA. emotionalB. nervousC. terribleD. Continuous15. The starving children were a pathetic sight.A. commonB. unexpectedC. unforgettableD. pitiful。
2020年职称英语理工A完形填空真题及答案
2020年职称英语理工A完形填空真题及答案CellPhone Lets Your Secrets OutYour cell phone holds secrets about you.Besides the names and numbers that you've programmed into it,______traces____(51) of your DNA linger (遗留) on thedevice according to a new studyDNA is genetic (遗传的)material _____that_____ (52) appears in every cell. Like your fingerprint, yourDNA is_____unique______ (53) to you——unless you have an identical twin. Scientiststoday analyze DNA in blood, saliva (唾液), orhair left ____behind_______ (54) at the scene of a crime. The results oftenhelp detectives identify ____criminals______ (55) and their victims. Your cellphone can reveal more about you ____than_____ (56) you might think.Meghan J. McFadden, a scientist at McMasterUniversity in Hamilton, Ontario, heard about a crime in which the suspect bledonto a cell phone and later dropped the____device_____ (57). This made herwonder whether traces of DNA lingered on cell phones一evenwhen no blood was___involved_____(58). She and colleague Margaret Wallace ofthe City University of NewYork analyzed the flip-open phones(翻盖手机)of10 volunteers. They used swabs (药签) tocollect_____invisible___ (59) traces of the users from two parts of the phone：the outside, where the user ____holds_____(60) it, and the speaker which isplaced at the user's earThe scientists cleaned the phones using asolution made mostly__of____(61) alcohol. The aim of washing was to remove alldetectable traces of DNA. The owners got their phones backfor another week.Then the researchers ___returned________ (62) the phones and cleaned each phoneonce more.The scientists discovered DNA that _____belonged______(63) to the phone's speaker on each of the phones. Better samples werecollected from the outside of each phone, but those swabs also picked up DNAthat belonged to other people who had apparently also ____handed______ (64) thephoneSurprisingly, DNA showed up even in swabsthat were taken immediately after the phones were scrubbed. That suggests thatwashing won't remove all traces of ___evidence________ (65) from a criminal'sdevice. So cell phones can now be added to the list of clues that can clinch (确定)a crime-scene investigation.51.A. nameB.picturesC. shapesD. traces答案：d52.A. thatB. whileC.asD.what答案：a53.A. commonB. goodC. helpfulD. unique答案：d54.A. behindB. awayC. asideD.over答案：a55.A. visitorsB. travelersC.scientistsD.criminals 答案：d56.A. until。
2020年职称英语理工类A级模拟试题及答案.doc
2020 年职称英语理工类 A 级模拟试题及答案第 1 部分：词汇选择 ( 第 1～15 题，每题 1 分，共 15 分)下面每个句子中均有一个词或短语有下划线，请为每处划线部分确定一个意义最为接近的选项。
1.The old concerns lose importance and some ofthem vanish altogether.A.developB.disappearC.lingerD.renew2.In the United States educational system, intermediate school is the transitional phase between the primary gradesand high school.A.stageB.notionC.patternD.alternative3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel.A.facilitatesB.overwhelmsC.inhibitsD.loosens4.The firm of Bonnin and Morris in Philadelphia was probably the first American Company to manufacture porcelain.A.silverwareB.crystalC.chinaD.linen5.Gunpowder was used extensively in firearms prior to 1990.A.inB.aroundC.fromD.before6.We packed up the things I had accumulated over the last three years and left for good.A.closeB.nearC.pastD.final7.The chemical is lethal to rats but safe to cattle.A.toxicB.harmfulD.contagious8.She is very conscientious about her work.A.worriedB.carefulC.anxiousD.nervous9.She has consolidated her power.A.strengthenedB.wonC.hardenedD.united10.The drinking water is contaminated with impurities.A.blackenedB.pollutedC.darkenedD.mixed11.Her novel depicts a futuristic America.A.writesB.sketchesC.describes12.He expressed concern that the ship might bein distress.A.despairB.difficultiesC.needD.danger13.They are endeavoring to change society as a whole.A.tryingB.workingC.doingD.making14.Your eternal boasting annoys everyone,A.unchangeableB.everlastingC.boringD.monotonous15.The other women seemed contented and theyeven exhibited their bellies with pride.A.demonstratedB.uncoveredC.spreadD.showed第 2 部分：阅读判断 ( 第 16～22 题，每题 1 分，共 7 分)下面的短文后，列出了 7 个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是准确信息，请选择 A; 如果该句提供的是错误信息，请选择 B; 如果该句的信息文中没有提及，请选择 C。
2020职称英语答案：理工A(网友版)
2020职称英语答案：理工A(网友版) 2020职称英语答案：理工A(网友版)理工类(A级)试题第1部分：词汇选项1. I want to decent D.good2. Lower spur iB.encourage3. Steep stairs r hazard C.danger4. The project f diligent D.hardworking5. The two merge next year. bine6. He demolished m A.disproved7. Her father graceful manners. B.polite8. Regulaf immense C.great9. He was rather vague A.unclear10. He was appalling D.terrible11. I can't put up with C.tolerate12. I enjoyed funny A.humorous13. Your dog vigorous D.energetic14. Our turmoil. C.confusion15. Patricia resentment. B.anger第2部分：阅读判断Monarch without a Kingdom16 The 5，000 km A. Right17 The Monarch A. Right18 The Mexicans C. Not mentioned19 in bad winters about 70B. Wrong20 In early AprilA. Right21 Genetically B. Wrong22 Genetically C. Not mentioned第4部分：阅读理解 (第 31~45题,每题 3分 ,共 45分)第1篇 Researchers Discover Why Humans Began Walking Upright31. Which NOT A Many people question the simple human activities of walking and carrying items.32. Dr. Richmond conducted the experiment with the purpose of finding B What made our ancestors walk upright.33. Kyoto,Universitry’s study discovered tha t chimpanzees C liked coula nuts better than oil palm nuts.34. Why did the chimpanzees walk on two limbs during Kyoto University's experiment? D Because they wanted to carry more nuts with two free limbs.35. What can we infer from the reading passage? D Human walking on two legs developed as a means of survival.第2篇 Ants Have Big Impact on Environment as "Ecosystem Engineers"36 .Why are ants compared to ecosystem engineers?C Because their activity affects the environment.37. As predators, antsA prey on small as well as large animals.38. Dir Sanders' study centered on how antsD produce such a big impact on the environment.39. What does paragraph 6 tell us?B Ants bring about a positive influence to an area when their population is small.40. What still remains unclear about ants, according to the last paragraph?C How do human activities affect ants' influence on a given ecosystem?第6部分：完形填空Free Statins With Fast Food Could Neutralize Heart Risk51 B.charge52C.suggest53 B.amount54 D. risk55B.charge56 B.enough57 A.unhealthy58 D.possibility59 A.degree60 D. like61 B.provided62C.custome63 A.measures64 B.wearing65 C.lowering更多推荐：。
2020年职称英语《理工A》阅读理解真题(文字版)
2020年职称英语《理工A》阅读理解真题(文字版) Older Volcanic EruptionsVolcanoes were more destructive in ancient history, not because they were bigger, but because the carbon dioxide they released wiped out life with greater ease.Paul Wignall from the University of Leeds wasinvestigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large numbers of animals, but all the mass extinctions over thepast 300 million years coincided with huge formations of volcanic rock. To his surprise, the older the massivevolcanic eruptions were, the more damage they seemed to do.He calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.The Permian extinction, for example, which happened 250 million years ago, is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Those volcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide. The global warmingthat followed wiped out 80 per cent of all marine genera atthe time, and it took 5 million years for the planet to recover. Yet 60 million years ago, there was another huge amount of volcanic activity and global warming but no mass extinction. Some animals did disappear but things returned to normal within ten thousands of years. "The most recent oneshardly have an effect at all," Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago, because many scientists believe it was primarily caused bythe impact of an asteroid. He thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of CO2.为了给考生提供更直观的真题答案解析，本站精心策划【】，请点击查看！Vincent Courtillot, director of the Paris Geophysical. Institute in Fran ce, says that Wignall’s idea is provocative. But he says it is incredibly hard to do these sorts of calculations. He points out that the killing power ofvolcanic eruptions depends on how long they lasted. And it is impossible to tell whether the huge blasts lasted for thousands or millions of years. He also adds that it isdifficult to estimate how much lava prehistoric volcanoes produced, and that lava volume may not necessarily correspond to carbon dioxide emissions.。
2020年职称英语真题：理工A阅读理解真题
2020年职称英语真题：理工A阅读理解真题Volcanoes were more destructive in ancient history, not because they were bigger, but because the carbon dioxide they released wiped out life with greater ease.Paul Wignall from the University of Leeds wasinvestigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large numbers of animals, but all the mass extinctions over thepast 300 million years coincided with huge formations of volcanic rock. To his surprise, the older the massivevolcanic eruptions were, the more damage they seemed to do.He calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.The Permian extinction, for example, which happened 250 million years ago, is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Those volcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide. The global warmingthat followed wiped out 80 per cent of all marine genera atthe time, and it took 5 million years for the planet to recover. Yet 60 million years ago, there was another huge amount of volcanic activity and global warming but no mass extinction. Some animals did disappear but things returned to normal within ten thousands of years. "The most recent ones hardly have an effect at all," Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago,because many scientists believe it was primarily caused bythe impact of an asteroid. He thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of CO2.Vincent Courtillot, director of the Paris Geophysical. Institute in France, says that Wignall’s idea is prov ocative. But he says it is incredibly hard to do these sorts of calculations. He points out that the killing power ofvolcanic eruptions depends on how long they lasted. And it is impossible to tell whether the huge blasts lasted for thousands or millions of years. He also adds that it isdifficult to estimate how much lava prehistoric volcanoes produced, and that lava volume may not necessarily correspond to carbon dioxide emissions.为了给考生提供更直观的真题答案解析，本站精心策划【】，请点击查看！。
2020职称英语理工类A真题包括答案.doc
2020 职称英语理工类 A 真题及答案第 1 部分：词汇选项 ( 第 1～15 题，每题 1 分，共 15 分)下面每个句子中均有 1 个词或短语划有底横线，请为每处划线部分确定 1 个意义最为接近的选项。
1.I will not tolerate that sort of behavior in my class.A. controlB. observeC. regulateD. accept2.She showed a natural aptitude for the work.3.Most people find rejection hard to accept.A. excuseB. clientC. refusalD. destiny4.The organization was bold enough to face the press.A. pleasedB. powerfulC. braveD. sensible5.They were locked in mortal combat.A. deadlyB. openC. actualD. active6.We were attracted by the lure of quick money.A. amountB. supplyC. temptD. sum7.The procedures were perceived as complex and less transparent.8.The Stock Exchange is in turmoil following a huge wave of selling.9.He believes that Europe must change or it will perish.A. surviveB. lastC. dieD. move10.There was a simultaneous trial taking place in the next build.A. fairB. full C .coexisting D. public11.They promote assimilation of ethnic groups intothe main-stream culture.A. policyB. value C .equality D. integration12.A salesman ’s cardinal rule is to satisfy customers. A.principal B. official C. simple D. legal13.I must compliment you on your handling of a very difficult situation14.We lived for years in a perpetual state of fearA. emotionalB. nervousC. terribleD. Continuous15.The starving children were a pathetic sight.A. commonB. unexpectedC. unforgettableD. pitiful第 2 部分：阅读判断 ( 第 16～22 题，每题 l 分，共 7 分)下面的短文后列出了 7 个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是准确信息，请选择 A; 如果该句提供的是错误信息，请选择 B; 如果该句的信息文中没有提及，请选择 C。
2020年职称英语理工A阅读理解真题及答案
2020年职称英语理工A阅读理解真题及答案Sports Star Yao MingIf Yao Ming is not the biggest sports star in the world, he is almost certainly the tallest. At 2.26m, he is the tallest player in the National Basketball Association (NBA) and holds the record as the most towering Olympian ever to compete in the Games.But what really stands out about the giant center is his celebrity(名气). Few, if any, Chinese athletes are as well-known as Yao around the world. People across the globe are fascinated with Yao, not only for his basketball prowess(杰出的才能)also for being a symbol of international commerce.When Yao joined the Houston Rockets as the No.1 pick in the 2002 NBA draft(选抜)， he was the first international player ever to be selected first. His assets on the court are clear enough—no NBA player of his size has ever possessed his mobility, so he is a handful(难对付的人)for opponents on either end of the court. But what makes Yao invaluable to the Rockets organization is his role as a global citizen and as a bridge to millions of potential basketball fans in China.When it was announced in February that Yao would miss the rest of the NBA season and possibly the Olympics with a stress fracture(骨折)in his left foot, a collectiveshudder(震动)spread across China. After considerable debate and discussion, Yao opted to get his foot surgically treated in an operation that placed several tiny screws across the bone, to offer his overburdened foot more support. The surgery was a success, and though the estimated four-monthrecovery period will leave him little time to prepare with Team China, Yao has vowed to be ready for the Beijing Olympics.Yao wrapped up a 10-day trip to China, where he underwent a series of traditional Chinese medicine (TCM) treatments, hoping to accelerate his recovery process Western experts are generally skeptical of TCM's benefits although new research from the University of Rochester suggests that a certain compound derived from shellfish may indeed stimulate bone repair."There is no reason to dismiss TCM," Yao told a press conference in Beijing." It's been used in our country for thousands of years. I don't think that it's short on science."31.【题干】The word "towering" in Paragraph 1 means_____【选项】rge.B.fat.C.tall.D.great.【答案】C【解析】32.【题干】Opponents find it very difficult to control Yao Ming because of his_____【选项】A.mobility.B.assault.C.defense.D.celebrity.【答案】A【解析】33.【题干】Yao Ming had to undergo a series of TCM treatments because_____【选项】A.his right foot had been hurting.B.he wanted to make a more rapid recovery.C.the surgical operation had been a failure.D.he couldn't afford all the medical expenses.【答案】B【解析】34.【题干】Which statement about Yao Ming is NOT true?【选项】A.He missed the Athens Olympics.B.He is an NBA player.C.He fractured his left foot.D.He is an international figure.。
职称英语等级考试试题答案及题解理工类(A级)(1)
职称英语等级考试试题答案及题解理工类(A级)(1)第l部分：词汇选项(第1～15题，每题1分，共15分)下面共有15个句子，每个句子中均有1个词或短语画有底横线，请从每个句子后面所给的4个选项中选择1个与画线部分意义最相近的词或短语。
请将答案涂在答题卡相应的位置上。
1 The dentist has decided to extract her bad tooth．A take outB break offC push inD dig up2 The economy continued to exhibit signs of decline in September．A playB showC sendD tell3 This table is strong and durable．A long-lastingB extensiveC far-reachingD eternal4 He endured great pain before he finally expiredA firedB resignedC diedD retreated5 The girl is gazing at herself in the mirror．A smilingB laughingC shoutingD staring6 The index is the government's chief．gauge of future economic activityA measureB opinionC methodD decision7 It's sensible to start any exercise program gradually at first．A workableB reasonableC possibleD available8 A lot of people could fall ill after drinking contaminated water．A boiledB pollutedC mixedD sweetened9 You have to be patient if you want to sustain your positionA maintainB betterC acquireD support10 She stood there，trembling with fear．A jumpingB cryingC movingD shaking11 Medical facilities are being upgraded．A expandedB repairedC improvedD transferred12 Rock climbing is hazardousA interestingB dangerousC attractiveD useful13 John is eligible for this job．A acceptedB recommendedC rejectedD recommended14 In order to improve our standard of living，we have to accelerate production．A involveB decreaseC speed upD give up15 Mary looked pale and weary．A worriedB uglyC sillyD exhausted第2部分：阅读判断(第16~22题，每题1分，共7分)阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子做出判断。
2020年职称英语考试真题理工类A级阅读理解(文字版)
2020年职称英语考试真题理工类A级阅读理解(文字版)Older Volcanic EruptionsVolcanoes were more destructive in ancient history, not because they were bigger, but because the carbon dioxide they released wiped out life with greater ease.Paul Wignall from the University of Leeds wasinvestigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large numbers of animals, but all the mass extinctions over thepast 300 million years coincided with huge formations of volcanic rock. To his surprise, the older the massivevolcanic eruptions were, the more damage they seemed to do.He calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.The Permian extinction, for example, which happened 250 million years ago, is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Those volcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide. The global warmingthat followed wiped out 80 per cent of all marine genera atthe time, and it took 5 million years for the planet to recover. Yet 60 million years ago, there was another huge amount of volcanic activity and global warming but no massextinction. Some animals did disappear but things returned to normal within ten thousands of years. "The most recent ones hardly have an effect at all," Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago, because many scientists believe it was primarily caused bythe impact of an asteroid. He thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of CO2.Vincent Courtillot, director of the Paris Geophysical. Institute in France, says that Wignall’s idea is prov ocative. But he says it is incredibly hard to do these sorts of calculations. He points out that the killing power ofvolcanic eruptions depends on how long they lasted. And it is impossible to tell whether the huge blasts lasted for thousands or millions of years. He also adds that it isdifficult to estimate how much lava prehistoric volcanoes produced, and that lava volume may not necessarily correspond to carbon dioxide emissions.Black Holes TriggerScientists have long understood that supermassive black holes weighing millions or billions of suns can tear apart stars that come too close.The black hotels gravity pullsharder on the nearest part of the star，an imbalance thatpulls the star apart over a period of minutes or hours，onceit gets close enough.Scientists say this Uneven pulling is not the only hazard facing the star.The strain of these unbalanced forces canalso trigger a nuclear explosion powerful enough to destroythe star from within.Matthieu Brassart and Jean-PierreLuminet of the Observatoire de Paris in Meudon，France1，carried out computer simulations of the final moments of such an unfortunate star‘s life，as it veered towards a supermassive black hole.When the star gets close enough，the uneven forcesflatten it into a pancake shape.Some previous studies had suggested this flattening would increase the density and temperature inside the star enough to trigger intense nuclear reactions that would tear it apart.But other studies had suggested that the picture would be complicated by shockwaves generated during the flattening process and that no nuclear explosion should occur.The new simulations investigated the effects of shock waves in detail，and found that even when their effects are included，the conditions favor a nuclear explo sion.“Therewill be an explosion of the star — it will be completely destroyed，” Brassart says. Although the explosionobliterates the star，it saves some of the star‘s matterfrom being devoured by the black hole.The explosion ispowerful enough to hurl mu ch of the star’s matter out of the black hole‘s reach，he says.The devouring of stars by black holes may already have been observed，although at a much later stage.It is thought that several months after the event that rips the star apart，its matter starts swirling into the hole itself.It heats upas it does so，releasing ultraviolet light and X-rays.If stars disrupted near black holes really do explode，then they could in principle allow these events to bedetected at a much earlier stage，says Jules Hatpern ofColumbia University in New York，US2.“It may make itpossible to see the disruption of that star immediately if it gets hot enough，” he says.Brassart agrees.“Perhaps it can be observed in the X-rays and gamma rays，but it‘s something that needs to bemore studied，” he says.Supernova researcher Chris Fryer of the Los Alamos National Laboratory in Los Alamos，New Mexico，US3，says the deaths of these stars are difficult to simulate，and he is not sure whether the researchers have proven their case that they explode in the process.词汇：supermassive adj.特大质量的imbalance/im5bAlEns/n.不平衡，不平衡veer/ viE/v.转向，改变方向flatten/5flAtn/v.使成扁平，夷平pancake/5pAnkeik/n.薄煎饼obliterate/E5blitEreit/v.抹去，除去，消除devour/di5vauE（r）/v.吞没；毁灭swirl/swE：l/打旋，旋动gamma rays γ 射线supernova/7sju：pE5nEuvE/n.超新星。
2020年职称英语理工类A级阅读理解第二篇考试真题及答案
2020年职称英语理工类A级阅读理解第二篇考试真题及答案阅读理解第二篇 Deforestation and Desertification(沙漠化）TheSahel zone lies between the Saharadesert and thefertile savannahs(热带大草原）ofnorthern Nigeria and South Sudan. The word sahel comes from Arabic and means marginal or transitional ,andthis is a good description of thesesemi-arid(半干旱）lands,whichoccupy much of the Western African countries of Mail,Mauritania,Niger,and Chad.Unfortunately, over the last century theSahara desert has steadily crept southwards eating into once productive Sahellands. United Nations surveys show that over 70 percent of the dry land inagriculture use in Africa has deterioratedover the last 30 years. Droughts have become more severe, the most recentlasting over twenty years in parts of the Sahel region. The same process ofdesertification istaking place across southern Africa as the Kalahari desertadvances into Botswana and parts of South Africa.One ofthe major causes of this desert advance ispoor agricultural land use, driven by the pressures of increasing population.Overgrazing一 keeping too many farm animals on the land一means that grasses and other plants cannot recover, and scarce water suppliesare exhausted. Overcultivation一tryingto grow too many crops on poor land一 resultsin thesoil becoming even less fertile and drier, and beginning tobreak up. Soilerosion (侵蚀) follows, and the land turns into desert.Another cause of desertification is loss of tree cover. Trees are cutdown for use as fuel and to clear land for agricultural use. Tree roots help tobind the soil together, to conserve moisture, and to provide a habitat forother plants and animals. When trees are cut down, the soil begins to dry andloosen, wind and rain erosion increase, other plant species die, and eventuallythe fertile top soil may be almost entirely lost, leaving only bare rock anddust.The effects of loss of topsoil and increased drought are irreversible. Theyare,however, preventable. Careful conservation of tree cover and sustainableagricultural land use have been shown to halt deterioration of soils and lessenthe effects of shortage of rainfall. One project in Kita in south-west Malifunded by UNDP has involved local communities in sustainable management offorest,while at the same time providing a viable(有活力的）agriculturaleconomy. This may be a model for similar projects in otherWest African countries.35 order to prevent desertification,the author proposes ___.A. making good use of international aidsB. developing a sustainableagricultural economyC. gaining international supportD. converting agricultural land intoforest答案：b36．The Sahel zone is an area which ___.A. is covered with sad and grassB. has a long historyC. occupies much of South NigeriaD. belongs to Sudan答案：a37. What is the situation about thedesertification in Africa?A. The deserts are replaced withgrasslandsB. The deserts are expandingC. the deserts are moving northwardsD. the deserts are being deserted答案：b38. The word “deteriorated ” in paragraph2 means ___.A. deepenedB. sufferedC. slippedD. worsened答案：d39. What is the root causeof desertification?A. poor farming。
2020年职称英语理工类A级真题及答案
2020年职称英语理工类A级真题及答案Older Volcanic EruptionsVolcanoes were more destructive in ancient history, not because they were bigger, but becausethe carbon dioxide they released wiped out life with greater ease.Paul Wignall from the University of Leeds wasinvestigat,ing the link between volcaniceruptions and mass extinctions. Not all volcanic eruptions killed- off large numbers of animals, butall the mass extinctions over the past 300 million years coincided with huge formations of volcanicrock. To his surprise, the older the massive volcanic eruptions were, the more.damage they seemedto do. Hecalculated the "killing efficiency" for these volcanoes by comparing the proportion of lifethey killed off with the volume of lava that they produced. He found that size for size, oldereruptions were at least 10 times as effective at wiping out life as their more recent rivals.The Permian extinction' ,for example, which happened 250 million years ago, is marked byfloods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Thosevolcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide. Theglobal warmingthat followed wiped out 80 per cent of all manne genera atthe time, and it took 5million years for the planet torecover. Yet 60 million years ago, there was another huge amount ofvolcanic activity and global warming but no mass extinction. Some animals did disappear but thingsreturned to normal within ten thousands of years. "The most recent ones hardly have an effect atall.”Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago,because many scientists believe it was primarily caused by the impact of an asteroid. He thinks thatolder volcanoes had more killing power because more recent life forms were better adapted todealing with increased levels of C02.Vincent Courtillot, director of the Paris Geophysical Institute in France, says that Wignall'sidea is provocative. But he says it is incredibly hard to do these sorts of calculations. He points outthat the killing power of volcanic eruptions depends on how long they lasted. And it is impossible totell whether the huge blasts lasted for thousands or millions of years. He also adds that it is difficultto estimate how much lava prehistoric volcanoes produced, and that lava volume may notnecessarily correspond to carbon dioxide emissions.。
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2020 职称英语理工类 A 真题及答案第1 部分：词汇选项( 第1～15 题，每题 1 分，共15 分)下面每个句子中均有 1 个词或短语划有底横线，请为每处划线部分确定1 个意义最为接近的选项。
1. I will not tolerate that sort of behavior in my class.A. controlB. observeC. regulateD. accept2. She showed a natural aptitude for the work.A. senseB. talentC. flavorD. taste3. Most people find rejection hard to accept.A. excuseB. clientC. refusalD. destiny4. The organization was bold enough to face the press.A. pleasedB. powerfulC. braveD. sensible5. They were locked in mortal combat.A. deadlyB. openC. actualD. active6. We were attracted by the lure of quick money.A. amountB. supplyC. temptD. sum7. The procedures were perceived as complex and less transparent.A. clearB. necessaryC. specialD. correct8. The Stock Exchange is in turmoil following a huge wave of selling.A. ServiceB. dangerC. disorderD. threat9. He believes that Europe must change or it will perish.A. surviveB. lastC. dieD. move10. There was a simultaneous trial taking place in the next build.A. fairB. full C .coexisting D. public11. They promote assimilation of ethnic groups into the main-stream culture.A. policyB. value C .equality D. integration12. A salesman ’s cardinal rule is to satisfy customers.A. principalB. officialC. simpleD. legal13. I must compliment you on your handling of a very difficult situationA. silenceB. praise C .assure D. complain14. We lived for years in a perpetual state of fearA. emotionalB. nervousC. terribleD. Continuous15. The starving children were a pathetic sight.A. commonB. unexpectedC. unforgettableD. pitiful第2 部分：阅读判断( 第1 6～22 题，每题l 分，共7 分)下面的短文后列出了7 个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是准确信息，请选择A;如果该句提供的是错误信息，请选择B;如果该句的信息文中没有提及，请选择C。
Lack of Oxygen Delayed the Rise of Animals on EarthScientists have long speculated as to why animal speciesdidn ’t flourish sooner, once sufficient oxygen covered theEarth ’s surface. Animals began to prosper at the end of theProterozoic period, about 800 million years ago —but whatabout the billion-year stretch before that, when mostresearchers think there also was plenty of oxygen?Well, it seems the air wasn ’t so great then, after all.In a study published Oct. 31 in Science, Yale researcherNoah Planavsky and his colleagues found that oxygen levelsduring the “boring billion ”period were only 0.1% of whatthey are today. In other words, Earth ’s atmosphere couldn ’thave supported a diversity of creatures, no matter whatgenetic advancements were poised to occur.“There is no question that genetic and ecologicalinnovation must ultimately be behind the rise of animals, butit is equally unavoidable that animals need a certain levelof oxygen, ”said Planavsky, co -lead author of the research along with Christopher Reinhard of the Georgia Institute of Technology. “We’re providing the first evidence that oxygen levels were low enough during this period to potentiallyprevent the rise of animals. ”The scientists found their evidence by analyzing chromium (Cr) isotopes in ancient sediments from China, Australia, Canada, and the United States. Chromium is found in theEarth ’s continental crust, and chromium oxidation isdirectly linked to the presence of free oxygen in the atmosphere.Specifically, the team studied samples deposited in shallow, iron-rich ocean areas, near the shore. They comparedtheir data with other samples taken from younger localesknown to have higher levels of oxygen.Oxygen’s role in controlling the first appearance ofanimals has long vexed scientists. “We were missing the right approach until now, ”Planavsky said. “Chromium gave us the proxy. ”Previous estimates put the oxygen level at 40%of today ’s conditions during pre -animal times, leaving open the possibility that oxygen was already plentiful enough tosupport animal life.In the new study, the researchers acknowledged that oxygen levels were “highly dynamic ”in the early atmosphere,with the potential for occasional spikes. However, they said,“It seems clear that there is a first-order difference inthe nature of Earth surface Cr cycling ”b efore and after the rise of animals.“If we are right, our results will really change howpeople view the origins of animals and other complex life,and their relationships to the co- evolving environment, ”said co-author Tim Lyons of the University of California- Riverside. “This could be a game changer. ”“There’s a lot of interest right now in a broader discussion surrounding the role that environmental stabilityplayed in the evolution of complex life, and we think ourresults are a significant contribution to that, ”R einhard said.16. The study discovered the rise of animals occurredearlier than the Proterozoic period.A. RightB. WrongC. Not mentioned17. Many researchers believe the oxygen level was high during pre-animal times.A. RightB. WrongC. Not mentioned。