职称英语理工类C级考试真题及答案

职称英语理工类C级考试真题词汇选项1.Theweatherlastsummerwas

awful.A.bad B.fair C.dry D.hot2.Thelawcarriesa

penalty

ofuptothreeyearsinprison.A.Message B.guilt C.obligation D.punishment3.Mypianoplayinghasimproved

significantly

sinceIhadanewteacher.A.definitely B.generally C.certainly D.greatly4.Thereisaneedfor

radical

changesineducation.A.revolutionary B.long-term C.short-term D.systematic5.It

frustrates

methatI‘mnotabletoputanyofmyideasintopractice.A.discourages B.shows C.surprises D.frightens6.Irealizedtomy

horror

thatIhadforgottenthepresent.A.limit B.fear C.power D.fool7.Hetriedto

assemble

histhoughts.A.gather B.clear C.share D.spare8.I

am

going

as

a

favor

to

Ann

because

I

have

to.

A.partner B.drive C.guide D.help9.Thedoctorsdidnot

reveal

thetruthtohim.A.hide B.handle C.disclose D.establish10.Railwaysarethemostimportant

mode

oftransportfortheeconomy.A.way B.factor C.objective D.source11.Hesaidsome

harsh

wordsabouthisbrother.A.proper B.unkind C.normal D.unclear12.Underthe

terms

ofthecontract，youmustgive3months‘noticebeforeyouleave.A.subjects B.expressions C.words D.rules13.Don‘t

temp

thievesbyleavingvaluablesclearlyvisible.A.alarm B.catch C.spot D.attract14.Whendidyoufirst

encounter

thesedifficulties？A.create B.present C.experience D.resolve15.Weneedtoidentifythe

potential

problems.A.possible B.main C.immediate D.common阅读判断ADHDLinkedtoAirPollutantsChildrenhaveanincreasedriskofattentionproblems，seenasearlyasgradeschool，iftheirmomsinhaled（吸入）acertaintypeofairpollutionwhentheywerepregnant.That'sthefindingofanewstudy.Releasedwhenthingsaren'tburnedcompletely，thispollutionisknownaspolycyclicaromatichydrocarbons，orPAHs.ThebiggestsourcesofthesePAHs：theburningoffossilfuels，woodandtrash.FredericaPereraworksatColumbiaUniversity'sMailmanSchoolofPublicHealthinNewYorkCity.Sheresearcheshowexposuretothingsintheenvironmentaffectschildren'shealth.Inanewstudy，sheandherteamstudiedtheexposuretoairpollutionof233nonsmokingpregnantwomeninNewYorkCity.Becauseburningtobaccocanspew（排放）PAHsintotheairandlungs，Perera'steamfocusedonnonsmokers.Theresearcherswantedtoprobe（探查）othersourcesofPAHs，onesthatwouldhavebeenhardforanindividualtoavoid.Theteamstartedbytestingthebloodofeachwomanduringpregnancy.Thereason：AnyPAHsinawoman'sbloodwouldalsobeavailabletothebabyinherwomb.Nineyearslater，theresearchersinvestigatedsignsofattentionproblemsinthesechildren，nowage9.Theyaskedeachchild'smotheraseriesofquestions.Theseincludedwhetherherchildhadproblemsdoingthingsthatneededsustained（长久）mentaleffort，suchashomeworkorgameswithfriends.Thescientistsalsoaskedifthekidshadtroublefollowinginstructionsormadefrequent，carelessmistakes.AllofthesecanbesymptomsofadisordercalledAttentionDeficitHyperactivityDisorder，orADHD.Aboutonein10U.S.childrenhasADHD.Amongthewomenstudied，trafficandhomeheatingweretheprimarysourcesofairpollutionexposure，Pereraandherteamsuspect.SomeofthesewomenhadlowlevelsofPAHsintheirblood.Othershadhighlevels.Thosewithhighlevelswerefivetimesaslikelytohavechildrenwhoshowedattentionproblemsbyage9.ThenewfindingswerepublishedNovember5inthejournalPLOSONE.16.PereraandherteamchosenonsmokingpregnantwomenalloverAmerica.A.Right B.Wrong C.Notmentioned17.ThemainpurposeoftheresearchwastofindouthowexposuretoPAHsplayedaroleinharmingthesubjects'physicalhealth.A.Right B.Wrong C.Notmentioned18.NonsmokingmotherswereselectedbecausetheeffectofsmokingonPAHswasunclear.A.Right B.Wrong C.Notmentioned19.Thebloodofeachwomenwastestedonceamonthduringpregnancy.A.Right B.Wrong C.Notmentioned20.KidswithADHDcommonlyfailinschool.A.Right B.Wrong C.Notmentioned21.ThewomenwithhighlevelsofPAHsintheirbloodweremorelikelytohavekidswithADHD.A.Right B.Wrong C.Notmentioned22.TrafficandhomeheatingwereconsideredtobethebiggestsourcesofPAHsforthesubjectsintheresearch.A.Right B.Wrong C.Notmentioned概括大意与完成句子1）NewresearchpublishedtodayinthejournalNatureCommunications,hasdemonstratedhowglasscanbemanipulatedtocreateamaterialthatwillallowcomputerstotransferinformationusinglight.Thisdevelopmentcouldsignificantlyincreasecomputerprocessingspeedsandpowerinthefuture2）TheresearchbytheUniversityofSurrey,incollaborationwiththeUniversityofCambridgeandtheUniversityofSouthampton,hasfounditispossibletochangetheelectronicpropertiesofamorphouschalcogenides,aglassmaterialintegraltodatatechnologiessuchasCDsandDVDs.Byusingatechniquecallediondoping,theteamofresearchershavediscoveredamaterialthatcoulduselighttobringtogetherdifferentcomputingfunctionsintoonecomponent,leadingtoall-opticalsystems.3）Computerscurrentlyuseelectronstotransferinformationandprocessapplications.Ontheotherhand,datasourcessuchastheinternetrelyonopticalsystems；thetransferofinformationusinglight.Opticalfibresareusedtosendinformationaroundtheworldatthespeedoflight,butthesesignalsthenhavetobeconvertedtoelectricalsignalsoncetheyreachacomputer,causingasignificantslowdowninprocessing.4）"Thechallengeistofindasinglematerialthatcaneffectivelyuseandcontrollighttocarryinformationaroundacomputer.Muchlikehowthewebuseslighttodeliverinformation,wewanttouselighttobothdeliverandprocesscomputerdata，"saidprojectleader,DrRichardCurryoftheUniversityofSurrey.5）"Thishaseludedresearchersfordecades,butnowwehavenowshownhowawidelyusedglasscanbemanipulatedtoconductnegativeelectrons,aswellaspositivecharges,creatingwhatareknownas'pn-junction'devices.Thisshouldenablethematerialtoactasalightsource,alightguideandalightdetector-somethingthatcancarryandinterpretopticalinformation.Indoingso,thiscouldtransformthecomputersoftomorrow,allowingthemtoeffectivelyprocessinformationatmuchfasterspeeds."6）Theresearchersexpectthattheresultsofthisresearchwillbeintegratedintocomputerswithintenyears.Intheshortterm,theglassisalreadybeingdevelopedandusedinnext-generationcomputermemorytechnologyknownasCRAM,whichmayultimatelybeintegratedwiththeadvancesreported.23.Paragraph2_____A.ExpectationofthediscoveryB.theproblemofcurrentcomputersC.AnewfindingD.ThepurposeoftheresearchE.PublicreactiontothediscoveryF.Theuseofthenewmaterial24.Paragraph3_____A.ExpectationofthediscoveryB.theproblemofcurrentcomputersC.AnewfindingD.ThepurposeoftheresearchE.PublicreactiontothediscoveryF.Theuseofthenewmaterial25.Paragraph4_____A.ExpectationofthediscoveryB.theproblemofcurrentcomputersC.AnewfindingD.ThepurposeoftheresearchE.PublicreactiontothediscoveryF.Theuseofthenewmaterial26.Paragraph5_____A.ExpectationofthediscoveryB.theproblemofcurrentcomputersC.AnewfindingD.ThepurposeoftheresearchE.PublicreactiontothediscoveryF.Theuseofthenewmaterial27.Theresultoftheresearchcanhelpcomputerstoincrease_____.A.opticalinformationB.processingspeedsC.electronsD.positivechargesE.datatechnologiesF.all-opticalsystems28.Currentcomputerstransferinformationusing_____A.opticalinformationB.processingspeedsC.electronsD.positivechargesE.datatechnologiesF.all-opticalsystems29.Thenewglassmaterialmakesitpossibletofulfilldifferentcomputingfunction_____A.opticalinformationB.processingspeedsC.electronsD.positivechargesE.datatechnologiesF.all-opticalsystems30.Glassisusedintheresearchtocarryandprocess_____.A.opticalinformationB.processingspeedsC.electronsD.positivechargesE.datatechnologiesF.all-opticalsystems阅读了解第一篇WhyBuyShade-GrownCoffee?Whenpeopleargueaboutwhethercoffeeisgoodforhealth,they'reusuallythinkingofthehealthofthecoffeedrinker.Isitfoodforyourheart?Doesitincreasebloodpressure?Doesithelpyouconcentrate?However,coffeeaffectsthehealthofthehumanpopulationinotherways,too.Traditionally,coffeebusheswereplantedunderthecanopy（树冠）oftallerindigenous（土生土长）trees.However,moreandmorefarmersinLatinAmericaaredeforestingthelandtogrowfull-suncoffees.Atfirst,thisincreasesproductionbecausemorecoffeebushescanbeplantediftherearen'tanytrees.Withincreasedproductioncomeincreasedprofits.Unfortunately,deforestingforcoffeeproductionimmediatelydecreaseslocal-wildlifehabitat.Nativebirdsnestandhidefrompredators（捕食者）inthetalltreesandmigratingbirdsrestthere.Furthermore,inthelongterm,thefull-sunmethodalsodamagestheecosystembecausemorechemicalfertilizersandpesticidesareneededtogrowthecoffee.Thefertilizersandpesticideskillinsectsthateatcoffeeplant,butthenthebirdseatthepoisonedinsectsandalsodie.Thechemicalskillorsickenotheranimalsaswell,andcanevenenterthewaterthatpeoplewilleventuallydrink.Fortunately,farmersinCentralandSouthAmericaarebeginningtogrowmorecoffeebushesintheshade.Wecansupportthesefarmersbybuyingcoffeewithsuchlabelsas"shadegrown"and"birdfriendly."Sure,thesevarietiesmightcostalittlemore.Butwe'repayingforthehealthofthebirds,theland,ourselves,andtheplanet.Ithinkit'sworthit.hefertilizersandpesticideskillinsectsthateatcoffeeplant,butthenthebirdseatthepoisonedinsectsandalsodie.Thechemicalskillorsickenotheranimalsaswell,andcanevenenterthewaterthatpeoplewilleventuallydrink.Fortunately,farmersinCentralandSouthAmericaarebeginningtogrowmorecoffeebushesintheshade.Wecansupportthesefarmersbybuyingcoffeewithsuchlabelsas"shadegrown"and"birdfriendly."Sure,thesevarietiesmightcostalittlemore.Butwe'repayingforthehealthofthebirds,theland,ourselves,andtheplanet.Ithinkit'sworthit.31.Whatisthemainideaofthispassage?A.Farmersarechangingthewaytheygrowcoffee.B.Coffeeisbecomingmoreexpensivetoproduce.C.Shade-growcoffeeismoreexpensivethansun-growcoffee.D.Peopleshouldbuyshade-growncoffee.32.Thefunctionoftheword"Traditionally"inParagraph2istoshow_____.A.thepositiveeffectsofcoffee.B.achangeofcoffeegrowth.C.somethingthatisthemostimportant.D.howcoffeeproductionusedtobe.33.Whatdoesincreasedproductionoffull-suncoffeebringabout?A.Moreinsects.B.Betterqualitycoffee.C.Largerfarms.D.Higherprofits.34.Howdofarmersfindmorelandforgrowingfull-suncoffee?A.Theybuymorelandfromotherfarmers.B.Theycutdowntrees.C.Theymovetoanothercountry.D.Theyturngrasslandintofarmland.35.Thefull-sunmethodmayaffectthefollowingEXCEPT_____.A.insectsB.airC.bridsD.humans第二篇Soot（煤烟灰）andSnow：aHotCombinationNewreasearchfromNASAscientistssuggestsemissionsofblacksootafterthewaysunlightreflectsoffsnow.Accordingtoacomputersimulation,blacksootmayberesponsiblefor25percentofobservedglobalwarmingoverthepastcentury.Sootinthehigherlatitudes（维度）oftheEarth,whereiceismorecommon,absorbsmoreofthesun'senergyandwarmththananicy,whitebackground.Dark-coloredblackcarbon,orsoot,absorbssunlight,whilelightercoloredicereflectssunlight.Sootinareaswithsnowandicemayplayanimportantroleinclimatechange.Also,ifsnowandicecoveredareasbeginmelting,thewarmingeffectincrease,asthesootbecomesmoreconcentratedonthesnowsurface."Thisprovidesapositivefeedback,asglaciersandicesheetsmelt,theytendtogetevendirtier."saidDr.JamesHansen,aresearcheratNASA'sGoddardInstituteforSpaceStudies,NewYork.Hansenfoundsoot'seffectonsnowalbedo（反照率）,whichmaybecontributingtotrendstowardearlyspringsintheNorthernHemisphere,suchasthinninbgArcticseaiceandmeltingglacierspermafrost.Sootalsoisbelievedtoplayaroleinchangesintheatmosphereabovetheoceansandland."Blackcarbonreducestheamountofenergyreflectedbysnowbackintospace,thusheadingthesnowsurfacemorethaniftherewerenoblackcarbon,"Hansensaid.Soot'sincreasedabsorptionofsolarenergyisespeciallyeffecntiveinwarmingtheworld'sclimate."Thisforcingisunusuallyeffective,causingtwiceasmuchglobalwarmingasacarbon-dioxideforcingofthesamemagnitude."Hansennoted.Hansencautioned,althoughtheroleofsootinalteringglobalclimateissubstantial,itdoesnotalterthefactthatgreenhousegasesaretheprimarycauseofclimatewarmingduringthepastcentury.Suchgasesareexpectedtobithelargestclimateforcingfortherestofthecentury.TheresearchersfoundthatobservedwarmingintheNorthernHermispherewaslargeinthewinterandspringatmiddleandhighlatitudes.Theseobservationswerecoherentwiththeresearchers'climatemodelsituations,whichshowedsomeofthelargestwarmingeffectsoccurredwhentherewereheavysnowcoverandsufficientsunlight.36.WhichofthefollowingstatementsofsootisNOTtrue?A.Itabsorbssun'sheat.B.Itisresponsibleforclimatechange.C.Itreflectssunlight.D.Itmayaccountforaquarterofglobalwarmingoverthepastcentury.37.Whichofthefollowingareasshowsagreaterwarmingeffect?A.Iceseaareas.B.Areaswithblackcarbon.C.Areascoveredwithwhitesnow.D.Meltingglaciers.38."Thisforcing"inParagraph5refersto?A.sun'sheatingonsnowsurface.B.soot'sincreasedabsorptionofsolarenergy.C.carbon-dioxide'swarmingeffect.D.snow'sincreasedreflectionofsunlight.39.Whatisthemaincauseofclimatewarmingduringthepastcentury?A.Soot.B.Snow.C.Greenhousegases.D.Wind.40.ThelargestwarmingeffectshappenedintheNorthernHemispherewithA.Xseaiceandinsufficientsunlight.B.lightsnowcoverandsufficientsunlight.C.heavysnowcoverandsufficientsunlight.D.thickseaiceandinsufficientsunlight.补全短文ExploreJordanWadiRumisthenamegiventoavalleycutintothesandstoneandhardrockinsouthwestJordan.（46）ThenameRummostlikelycomesfromanAramaicwordmeaning“high”or“elevated”,TheareaaroundWadiRumisnowalsooneofJordan‘smostimportanttouristdestinations,andattractsanincreasingnumberofforeigntourists,particularlytrekkers（越野者），butalsoforcamelsafaris（旅行）orsimplyday-trippersfromAqabaorPetra.Incontrast,therearealmostnolocalorArabtouriststhroughPopularactivitiesinthedesertenvironmentincludecampingunderthestars,ridingArabhorses,androck-climbingamongstthemassiverockformations.JebalRum（Jebalmeansmountain）is1574metresabovesealevel.（47）。ButJordanisnotsimplyadesertenvironment——italsocontainstheareawhichisthelowestpointtothefaceoftheEarth——theincredibleDeadSea,popularwithtouristsforswimming.（48）OncethewatersreachtheDeadSeatheyarelandlockedandhavenowheretogo,sotheyevaporate,leavingbehindadense,richcocktail（混合）ofsaltsandmineralsthatsupplyindustry,agricultureinwaterspatreatmentsandwatertherapies.TheDeadSeaislocatedinthesyro-AfricanRift,a4000-milefaultlineintheEarth'scrust.ThelowestpointofdrylandonEarthistheshorelineoftheDeadSeaat1300feetbelowsealevel.Becausethelakeisatthelowestpoint,thismeansthatwaterdoesnotdrainfromit.（49）FiguresfortheDeadSea'ssalinity（盐度）todayrangefrom25%to35%.ButthegreatesttouristattractionistheincrediblecityofPetra.（50）Itisavastuniquecity,carvedintothesheerrockfacebytheNabataeans,anindustriousArabpeoplewhosettledheremorethanyearsago,turingitintoanimportantjunctionforthesilk,spiceandothertraderoutesthatlinkedChinaIndiaandsouthernArabiawithEgypt,Syria,GreeceandRome.Today,visitorscanmarvelatthearchitectureandexplorelifeasitwasthousandsofyearsago.A.Itisthelargestwadi（riverbed）inJordan.B.ItisthesecondhighestpeakinJordon,risingdirectlyabovetheRumvalleyoppositeJebalUrnIshrin.C.Thisvaststretchofwaterreceivesanumberofincomingrivers,includingtheRiverJordan.D.Theareahasbeenusedasabackgroudsettinginanumberoffilms.E.Everydaysevenmilliontonsofwaterevaporatefromthelake,butthemineralremaincausingthesaltcontenttoincrease.F.ItiswithoutdoubtJordan'smostvaluabletreasure.完型填空RescuePlatformIntheaftermathoftheterroristattacksontheWorldTradeCenter,securityexpertsaretryingtodevelopnewwaysofrescuingpeoplefromburningskyscrapers.One（51）isaplatformcapableofflyingverticallyandhoveringinth