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大学英语四级考试模拟试题及答案解析(2)

d)becausethesalespeoplearenottrustable

partiiireadingrehension

?sectiona

directionsthissection,thereisapassagewithtenbnksyouarerequiredtoselectonewordforeachbnkfrolistofchoicesgiveninawordbankfollowingthepassagereadthepassagethroughcarefullybeforekingyourchoiceseachchoiceinthebankisidentifiedbyaletterpleaserktherrespondingletterforeachitenanswersheet2withasinglelihroughthecentreyouynotuseanyofthewordsinthebankrethanonce

questions26to35arebasedonthefollowingpassage

ithaslongbeenadisputethatnfroarswhilewonfroenuslesandfelesseeoshowbehaviorsalstfroirthaordingtotheresearchers'words,thesedifferentbehaviorsareonaountofthebasicdifferencesintheirbrainandactivitiesactually,nandwonhavetheirownstrongpointsndobetterintargetsandsolvingthproblewhilewondobetterinrizingwordsandregnizingfacesbutwhyaretheredifferences

nrelyreononesideofthebrainwhilewonusebothsidesofitonthebasisofatestofthebrain'selectricactivityscientistsalsofindthatthetwosidesofthebrainhavedifferentfunctions—oneistontrolthesenseofspaceandtheotheroneistontrolnguageandsoresearcherssupposethatthedifferentwaysthatnandwonusetheirbrainsfroncienttis,duringwhichcavenhuntedandwonattendedtothechildrentherefore,nhadtohavegoodandwonhadtotalktothekids

notterwhattheexpnationis,thebattleofthesexesneverquitedowneventhoughtheirbrainsareslightlydifferentinnstruction,nandwonarecapableastheysilyrelyondifferentabilitiesthereisanexaleinwhichapairofupleisarguingovertheoftheircarinaparkinglotthenghtfindthecarbyusinghissenseofspaceandatthesatithewononherregnitionofndrkstheisthatbothoftheindthecarbutchancesybethattheywillstilrgueaboutwho'sthebetterdriverandwho'sbetteratfindingthewayho

a)hittingb)locationc)ai)different

e)ssionf)possiblyg)outh)depends

i)riskedj)structuresk)onlyl)obvious

equallyn)evolvedo)arguing

?sectionb

directionsthissection,youaregoingtoreadapassagewithtenstatentsattachedtoiteachstatentntainsrtiongiveninoneoftheparagraphsidentifytheparagraphfrohichthertionisderivedyouychooseaparagraphrethanonceeachparagraphisrkedwithaletteranswerthequestionsbyrkingtherrespondingletteronanswersheet2

a)between1901and2010,globalsealevelsroseanaverageof019ters,orroughlyseveninchesoverthenextcentury,they'llntinuetorise—butatthispoint,that'soneofthefewthingsscientistsknowforcertainlessunderstoodishowfastthey'llrise,orwhereintheworldthesechangeswillbethestpronounced—rtionthatwillbecrucialinhelpingastalunitiesadapttoclitechange

b)"thisistheburningquestion,"saidandreadutton,anassistantprofessorofgeologyatuniversityofflorida"howquicklywillthesealevelsrise,andbyhowch"tofigureitout,duttonandotherscientistsacrosstheunitedstatesarestudyingsea-levelchangesdatingback125,000to400,000years,whenglobanteeratureswere15ortwodegreescelsiushigherthantheyaretodayinsocases,theglobansealevelsduringtheseeraspeakedat20-30feetabovepresentrates

c)aordingtotheintergovernntalpanelonclitechange,thepislikelytoreachthoseteeraturesagainby2100—whichansunderstandingthepastllenniauldhelpresearchersdeternehowbesttoprotectvulnerableareasfroherisingtides

d)theipestitesaxi69-footincreaseoverthenexthundredyearsorso,thoughotherestitesareashighasthreeorfourfeetintheanti,sopceshavealreadybeguntofeeltheiactinsoutheastflorida,forexale,fourunties—includingadadeandpaleach—havefordaalitioncalledthesoutheastfloridaregionalacttodevelopstrategiesforproblelikenuisanceflooding,ndsubsidence,andsaltwaterintrusionintofreshwatersourcessirlocaleffortsaretakingpceintheunitiessurroundingthechesapeakebay,andinotherfloodinghotspotsaroundtheuntry

e)"peoplearedendingreregionalizedrtionbecauselocalunitiesarebeingaffected,"saidbenjankirtn,aprofessorofatsphericsciencesattheuniversityofa"theregionaleffectsareverytricky,particurlyhere"butregionalresearchwillhavetoaountforeventswithglobalilications,includingthelikelyeventualbreak-up,ordegciation,ofthewestantarcticicesheetandtheltingofgreennd"andrightnow,scientistsdon'thavethedatatounderstandhowthechangesinthesessiveicesheetswilffectsealevelsworldwide,"saysrichardalley,agciologistatpennsylvaniastateuniversity

f)scientistshaveroxitedthatthelpseofthewestantarcticicesheetaloneuldleadtoariseinglobalsealevelsbyupto11feetalleyhasdeledscenariosinwhichwarngteeraturesledtheicesheetto"developunstablecliffsandfracturerapidly,leadingtorapidice-sheetlossandsea-levelrise"hearesthephenonontoafragilesanddune,susceptibletolpse"notchresearchhasbeenavaibletotheiponthistopictheuncertaintiesarerge,"saidalley"whetheracliffisgoingtocruleornotisahardthingtosay"

g)puttingtogetheraletepictureofpastdifferentwareriods,rangingfrobout11,700to53llionyearsago,isnoeasytask,eithertheseeras,thoughdistinct,allsharecertainonalities,liketeeraturesandatspheriarbon-dioxidelevelsonparwithwhatwe'reexperiencingtoday

h)lookingback120,000years,theteeraturewastwotothreedegreescelsiushigherthantoday'steerature—whatscientistsprojectclitechangeuldbringwithinthenextcenturyforexale,intheintergciage120,000yearsago,teeraturesweretwotothreedegreescelsiushigherthantheyaretoday,andsealevelswerethreetoniershigherscientistsprojectthatwithinthenextcentury,clitechangeuldbringcurrentteeraturesuptolevelsonparwiththisperiod

i)duttonrecentlyreceivedfundingfrohenationalsciencefoundationtoassesstheratesofsealevelrisearound125,000yearsagoherproject,likestresearchinthisfield,reliesnotondels,butinsteadonagedphysicalevidence—inhercase,ralsalesllectedfrohefloridakeys,xi,andwesternaustraliasinceralgrowsclosetotheseasurface,thedifferentyersofralfossilreflecttheirgrowth,age,andsubsequently,ntactwiththeocean

j)"thisoceanlifecanhelpserveasarerdforwheresealevelwas,"saiddutton"wecanasuretheratesofsealevelriseandseesitagradualprocess,ordiditjuquicklywasitstable"shesaid"partofthequestionis,didthisrisehenin1,000yearsorless,"shentinued"wewanttogetitdowntoplusornus50years,butweghtnotbeabletoresolveanythinglessthanthat"

k)thoughsealevelisalocalissue,australia'sparticurtopographicaldynacsduringthistiperiodwouldhelpitstandasanestiteforaglobaverage

l)ureenray,aprofessoratluiauniversity'snt-dohertyearthobservatory,studiestheclitesysteofpastwareriods,includingtheplioceneerashesaysthatasclitesciencehasintosharperfocusoverthepastfiveyears,theideaofstudyingdeep-tirerdshascaughtonwithintheclite-researchunity"idon'tthink10yearsagoscientistsrealizedjusthowquicklythepotentialforrapidsealevelrisewas,"raysaid

atthesoutherntipoftheunitedstates,anwhile,theachapterofthesoutheasternfloridaact—thelocalclite-changealitionosedofcityofficials,unityers,andscientists—isyingoutcitypnsonfive-yearcyclesanythingfurtheroutyberenderedirrelevantbytherisingseas

n)"nobodyknowswhatthingsaregoingtolooklikein50to100years,"saidnilehefty,whoheadsupa-dadeunty'sofficeofsustainability"wecanspeakforslleryearsandadaptinthatway"

o)inthechesapeakebayarea—aftregionthat'sbeensinkingatarateof11to48llitersperyearsincethe1940s—residentshaverecentlybegunpreparingforthesearisewithalocalpilotprojectinnorfolk,virginiadifferentworkinggroups—osedofclitescientists,citizens,andrepresentativesfroovernntandtheprivatesector—willdevelopreendationsforzoningandnstructionprojectswithaneyeonsea-levelriseandstorurge

p)"thisdeluldbereplicatedthroughouttheuntry,saysrryatkinson,"aprofessoratthecenterforastalphysicaloceanographyinnorfolkwhonsultsforthepilotbutbecauseprojectslikethesedependonlocalfundingandanizing,theycanbechallengingforsounitiestodevelop

36dutton'sprojectreliesonagedphysicalevidence—ralsales

37regionalresearchhastoaountforeventswithglobalilications

38citypnsonfive-yearcyclesisbeingidoutbytheachapterofthesoutheasternfloridaact

39theglobansealevelsduring125,000to400,000yearsagopeakedat20-30feetabovepresentrates

40sounitieswillhavedifficultiesindevelopingthelocalpilotprojectbecauseoffundingandanizingproblep>41personagesofallcircleswilldevelopreendationsforzoningandnstructioninnsiderationofsea-levelriseandstorurge

42currentteeratureswillbebroughtupbytwotothreedegreescelsiusinthenextcentury

43fouruntiesinsoutheastfloridahavefordaalitiontopesealevelrise

44thelpseofthewestantarcticicesheetuldcausetheglobalsealevelstoriseupto11feet

45raysaystheideaofstudyingdeep-tirerdshascaughtonwithintheclite-researchunity

?sectionc

directionsereare2passagesinthissectioneachpassageisfollowedbysoquestionsorunfinishedstatentsforeachoftheherearefourchoicesrkeda),b),c)andd)youshoulddecideonthebestchoiceandrktherrespondingletteronanswersheet2withasinglelihroughthecentre

?passageone

recentlytheopenuniversityundertookarehensiveanddetailedresearchprojectandtheirevidenceturnsouttoshowthatetitionbetweennearbyschoolsdoesnotansignificantiroventinacadecstandardsinfact,theresearchreportevenrevealstheoppositeout;thetestsres,however,yactuallydeclineinpceswherethereisfiercestetition

afewyearsagowhenthefurthereducationsectorwas"privatized",fierceetitionbetweenllegesprevailsandpotentialstudentsinurbanareascanchoosefroeveralllegeshowever,llegeshiredhigh-sariedrketingdirectorsandofferedtheithrgebudgets,sollegeseven"bribed"interestedstudentsattheproseofhundredsofpoundsaslongsastheyletedcertainursessatisfactorily

afullyetitiverketservesasthephilosophicalfoundationofbritain'srecentgovernntitwasnowonderthattherewerecithateducationaldevelopntsofthe1990sespeciallyinsendaryeducationwoulddevelopstowardsafreerket,whichgivesyoungstersandtheparentsfreedoochoosewheretostudyhowever,thesendaryeducationsectordidn'tbeaparticurlyetitiveoneallowedly,chrertionhasbeengiventothensurs,whichisalsooneofthecharacteristicsofatrulyfreerketitisrarecasethattwonearbyschoolswithseveraletypcesaresirenoughtobearableyetdifferentenoughtoberankablethefactisthatwherethishenscanthereberealetition

theresearchcarriedoutbyopenuniversityghtnotbefwed,butthenclusionsofithavesofwthereasonisthattheresearchgroupdidnotareareaswhichhaverealetitionwiththeareasthatdonot

however,donotbesoanxiousandtakeiteasysendaryschoolsrecentlyhadbeguntovetowardstherketingdirectiontheyarensideringallocatingresourcesofstaffandfundstopersuadestudentsthattheirschoolsareofthebestintheareanoschoolsuldaffordtodothatproperly,soitistoourreliefthatthisresearchtellsuswedon'thaveto

wehaven'tgottiforetitionitischpracticaltospendourenergyandsllbudgetinteachingandlearningratherthaninetingandrketing

46aordingtotheresearchprojectcarriedoutbytheopenuniversity,etitionbetweennearbyschools__