职称英语理工类A真题及答案.docx
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职称英语理工类A真题及答案.docx
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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.Iwillnottoleratethatsortofbehaviorinmyclass.
A.controlB.observeC.regulateD.accept
2.Sheshowedanaturalaptitudeforthework.
A.senseB.talentC.flavorD.taste
3.Mostpeoplefindrejectionhardtoaccept.
A.excuseB.clientC.refusalD.destiny
4.Theorganizationwasboldenoughtofacethepress.
A.pleasedB.powerfulC.braveD.sensible
5.Theywerelockedinmortalcombat.
A.deadlyB.openC.actualD.active
6.Wewereattractedbythelureofquickmoney.
A.amountB.supplyC.temptD.sum
7.Theprocedureswereperceivedascomplexandlesstransparent.
A.clearB.necessaryC.specialD.correct
8.TheStockExchangeisinturmoilfollowingahugewaveofselling.
A.ServiceB.dangerC.disorderD.threat
9.HebelievesthatEuropemustchangeoritwillperish.
A.surviveB.lastC.dieD.move
10.Therewasasimultaneoustrialtakingplaceinthenextbuild.
A.fairB.fullC.coexistingD.public
11.Theypromoteassimilationofethnicgroupsintothemain-streamculture.
A.policyB.valueC.equalityD.integration
12.Asalesman’scardinalruleistosatisfycustomers.
A.principalB.officialC.simpleD.legal
13.Imustcomplimentyouonyourhandlingofaverydifficultsituation
A.silenceB.praiseC.assureD.complain
14.Welivedforyearsinaperpetualstateoffear
A.emotionalB.nervousC.terribleD.Continuous
15.Thestarvingchildrenwereapatheticsight.
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。
LackofOxygenDelayedtheRiseofAnimalsonEarth
Scientistshavelongspeculatedastowhyanimalspeciesdidn’tflourishsooner,oncesufficientoxygencoveredtheEarth’ssurface.AnimalsbegantoprosperattheendoftheProterozoicperiod,about800millionyearsago—butwhataboutthebillion-yearstretchbeforethat,whenmostresearchersthinktherealsowasplentyofoxygen?
Well,itseemstheairwasn’tsogreatthen,afterall.
InastudypublishedOct.31inScience,YaleresearcherNoahPlanavskyandhiscolleaguesfoundthatoxygenlevelsduringthe“boringbillion”periodwereonly0.1%ofwhattheyaretoday.Inotherwords,Earth’satmospherecouldn’thavesupportedadiversityofcreatures,nomatterwhatgeneticadvancementswerepoisedtooccur.
“Thereisnoquestionthatgeneticandecologicalinnovationmustultimatelybebehindtheriseofanimals,butitisequallyunavoidablethatanimalsneedacertainlevelofoxygen,”saidPlanavsky,co-leadauthoroftheresearchalongwithChristopherReinhardoftheGeorgiaInstituteofTechnology.“We’reprovidingthefirstevidencethatoxygenlevelswerelowenoughduringthisperiodtopotentiallypreventtheriseofanimals.”
Thescientistsfoundtheirevidencebyanalyzingchromium(Cr)isotopesinancientsedimentsfromChina,Australia,Canada,andtheUnitedStates.ChromiumisfoundintheEarth’scontinentalcrust,andchromiumoxidationisdirectlylinkedtothepresenceoffreeoxygenintheatmosphere.
Specifically,theteamstudiedsamplesdepositedinshallow,iron-richoceanareas,neartheshore.Theycomparedtheirdatawithothersamplestakenfromyoungerlocalesknowntohavehigherlevelsofoxygen.
Oxygen’sroleincontrollingthefirstappearanceofanimalshaslongvexedscientists.“Weweremissingtherightapproachuntilnow,”Planavskysaid.“Chromiumgaveustheproxy.”Previousestimatesputtheoxygenlevelat40%oftoday’sconditionsduringpre-animaltimes,leavingopenthepossibilitythatoxygenwasalreadyplentifulenoughtosupportanimallife.
Inthenewstudy,theresearchersacknowledgedthatoxygenlevelswere“highlydynamic”intheearlyatmosphere,withthepotentialforoccasionalspikes.However,theysaid,“Itseemsclearthatthereisafirst-orderdifferenceinthenatureofEarthsurfaceCrcycling”beforeandaftertheriseofanimals.
“Ifweareright,ourresultswillreallychangehowpeopleviewtheoriginsofanimalsandothercomplexlife,andtheirrelationshipstotheco-evolvingenvironment,”saidco-authorTimLyonsoftheUniversityofCalifornia-Riverside.“Thiscouldbeagamechanger.”
“There’salotofinterestrightnowinabroaderdiscussionsurroundingtherolethatenvironmentalstabilityplayedintheevolutionofcomplexlife,andwethinkourresultsareasignificantcontributiontothat,”Reinhardsaid.
16.Thestudydiscoveredtheriseofanimalsoccurredearli
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