大学英语六级阅读理解测试题及答案

Questions56to60arebasedonthefollowingpassage.UniversityofYorkbiologistPeterMayhewrecentlyfoundthatglobalwarmingmightactuallyincreasethenumberofspeciesonthepla，contrarytoapreviousreportthathighertemperaturesmeantfewerlifereportmatwashisown.InMayhew’sinitialxxbiodiversityamongmarineinvertebrates(无脊椎动物)appearedtocoincidewithwarmertemperaturesonEarthoverthelast520millionyears.ButMayhewandhiscolleaguesdecidedtoreexaminetheirhypothesis，thistimeusingdatathatwere“afairersampleofthehistoryoflife.”砌thisnewcollectionofmaterial.theyfoundapletereversaloftherelationshipbetweenspeciesrichnessandtemperaturefromwhattheirpreviouspapernumberofdifferentgroupspresentinthefossilrecordthanlower，durin9“greenhousephases.”Theirpreviousfindingsrestedonanassumptionthatfossilrecordscanbetakentorepresentbiodiversitychangesthroughouthistory.Thisn’tnecessarilythecase.becausetherearecertainperiodswithhigher.qualityfossilsamples.andsomethataremuchmoredifficulttosamplewell.Awareofthisbias.Mayhew’steamuseddatathatstandardizedthenumberoffossilsexaminedthroughouthistoryandaountedforothervariableslikesealevelchangesthatmightinfluencebiodiversityintheirnewstudytoseeiftheiroldresultswouldholdup.Twoyearslater，theresultsdidnot.Butthenwhydoesn'tlifeincreasinglyemergeonEarthasourtemperaturesgetwarmer?Whiletheswitchmaypromptsometoassertthatclimatechangeisnothazardoustolivingexplainedthatthetimescalesinhisteam’sstudyarehuge--over500millionyears--andthereforeinappropriatefortheshorterperiodsthatwemightlookatashumansconcernedaboutglobalwanning.Manyglobalwarmingconcernsarefocusedonthenextcentury.Hethelifetimeofaspeciesistypicallyoneto10millionyears.“Idoworrythatthesefindingsvillbebytheclimateskepticmunitytosay‘look.Climatewarmingisfine。hesaid.Nottomentionthenumerousotherthingsweseemtodotocreateastormofthreatstothinkofwhathabitat(栖息地)destruction，overfishing，andpollutioncandoforaspecies’viability(生存力).Thosethings，Mayhewexplained，givetheorganismsafargreaterchallengeincopingwithclimatechangethantheywouldhavehadintheabsenceofhumans.“Ifweweretorelaxallthesepressuresonbiodiversityandallowtheworldtorecoverovermillionsofyearsinawarmerclimate.thenmypredictionisitwouldbeanimprovementinbiodiversity，”hesaid.Soitlookslikeweneedtocurbourrecklesstreatmentofthewewanttoeventuallyseeasurgeinthenumberofspeciesontheplaastemperaturesgetwarmer.Wedon'thave500millionyearstowait.56.WhatisthefindingofPeterMayhew’srecentstudy?A.Highertemperaturecausesthelowbiodiversityofmarineinvertebrates.B.Fossilrecordcanrepresentarelativelybelievablehistoryoflife.C.Thenumberoffossilswashigherduringgreenhousephases.D.GlobalwarmingmightpromotetherichnessofspeciesonEarth.57.WhatdowelearnaboutMayhew’spreviousreport?A.Itwasbasedonhiscolleagueshypothesisaboutglobalwarming.B.Itwascontrarytowhathisteamfoundintherecentstudy.C.Itwasapletereversalfromhisxxstudyaboutmarineinvertebrates.D.Itfoundevidencefortheconnectionsbetweenbiodiversityandtemperature.58.WhydoesMayhew’steamusedatathatstandardizedthenumberoffossils?A.Theyrealizenotallfossilscansamplewelltorepresentbiodiversitychanges.B.Theystarttoconsiderthevariablesthatmightinfluencebiodiversity.C.Theywanttocheckthepreviousfindingswithdifferentresearchmethods.D.Theybelievesealevelchangescanleadtoinauratefossilrecords.59.Becauseofthehugetimescalesinhisbelieved.A.globalwarmingisnothazardoust01ivingcreaturesinashorttimeB.hisstudyisnotsuitabletosupportshort-termglobalwarmingC.globalwarmingconcernsshouldbefocusedoninthenextcenturyD.thelifetimeofaspeciescanbeextendedt010millionyears60.By“wedon’thave500millionyearstowait”(Line4，Para.6)，theauthorsuggeststhat.A.wehavenoenoughtimetoallowtheearthtorecoverfromdamagesB.wehavenoenoughtimetowitnesstheevolutionofaspeciesC.it’surgentforhumanstotakestepstopreventglobalwarmingD.it'snecessaryforhumanstostopmaltreatmentofthepla56.D)。此题考查彼得·梅休的最新研究成果。定位句指出，他发现气候变暖可能使得地球上物种的数量增加，故答案为D)。57.B)。此题考查对梅休之前研究报告结论的理解。定位句指出，在新收集的材料中，他们发现了与他们之前的论文所辩称的一种物种丰富性与温度间完全相反的关系，故答案为B)。58.A)。此题考查梅休团队利用标准化化石的原因。定位句指出，因为某些特定的时段有一些更高质量的化石样本，其中一些更难取出好的样本。基于这一点，梅休团队在他们的新实验中利用标准化个数并被历史所检测的化石数据，故此题答案为A)。59.B)。此题考查梅休对于研究时间跨度太长的态度。定位句指出，梅休解释他们团队的研究时标很长，有5亿多年，所以用于解释人们关注的较短时间内的全球变暖是不适宜的，故答案为B)。60.D)。JustbackfromatourofseveralArabianGulf1countries,awomanrecallshowjumpyshefelttalkingtomenthere."Notbecauseofwhattheysaid,"sheexplains,"butwhattheydidwiththeireyes."Insteadoftheoasionalblink,Arabsloweredtheirlidssoslowlyandlanguorouslythatshewasconvincedtheywerefallingasleep.InJapaneyecontactisakeytothewayyoufeelaboutsomeone.Andthelessofit,thebetter.WhataWesternerconsidersanhonestlookintheeye,theOrientaltakesasalackofrespectandapersonalaffront.Evenwhenshakinghandsorbowing—andespeciallywhenconversing6—onlyanoasionalglanceintotheotherperson'sfaceisconsideredpolite.Therestofthetime,greatattentionshouldbepaidtofingertips,desktops,andthewarpandwoofofthecarpet."AlwayskeepyourshoesshinedinTokyo,"advisesanelectronicsrepresentativewhohasspentseveraldaysthere."YoucanbetalotofJapaneseyoumeetwillhavetheireyesonthem."Ⅰ.Doyouunderstandthemeaningofthefollowingsentencesrelatingtoeyeandcouldyouexplaintheminyourownwords?1.Hiseyesarebiggerthanhisstomach.2.He'sgotablackeye.3.Maryspentthewholeeveningmakingeyesatothermen.4.ThetriptoAustraliawasquiteaneye-opener.5.MywifeandIdon'tseeeyetoeyeonthismatter.6.Sheisalwaystheappleofherfather'seye.Ⅱ.Fillintheblankswithproperprepositions:1.Thediscoveryofthemurderweaponprovidedthekeythemystery.2.Pleasekeepaneyethebabyforme.3.Canyoulookmetheeyeandsayyoudidn'tstealit?4.Foramomentherwordsdidn'tsink.Ⅰ.1.Heistoogreedyinaskingforortakingmorefoodthanhecan