-------------各類專業好文檔，值得你下載，教育，管理，論文，制度，方案手冊，應有盡有---------------------------各類專業好文檔，值得你下載，教育，管理，論文，制度，方案手冊，應有盡有--------------2011年6月大學英語四級全真預測試卷及答案PartIWriting(30minutes)Directions:Forthispart,youareallowed30minutestowritealetter.Youshouldwriteatleast120wordsfollowingtheoutlinegivenbelowinChinese:給你的外國朋友寫一封信，告訴他(她)你已經被美國的一所大學錄取，但你苦惱的是自己的聽力和口語水平不夠，你想尋求他(她)對于如何提高聽力和口語的建議。PartIIReadingComprehension(skimmingandScanning)(15minutes)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,markY(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.RobotCarstoDoBattleinDesertRaceWhen15competitorslinedupinNevadalastyearfortheU.S.DefenseDepartment'sfirstmillion-dollarrobotrace,hopeswerehigh.Thechallenge:todriveavehiclewithoutahumandriverorremotecontrolsome150miles(241kilometers)throughtheMojaveDesert.Butthosehopesquicklywentupinacloudofdustasmostrobotsbarelymanagedtogetoffthestartingline.Thebestperformer,amodifiedHumveebuiltbyengineersatPennsylvania'sCarnegieMellonUniversity,traveled7miles(11kilometers)beforebreakingdown.Torobotdevotees(熱愛者),however,itwasamiinorhiccup.Nosurprise,then,that43teamsshoweduptotryoutforthisyear'srace,dubbed(被稱作)theGrandChallenge.Forthepastweek,teamsrangingfromgarageenthusiaststowell-fundeduniversityengineershavebeenfine-tuningtheirmachinesatqualifyingroundshereattheCaliforniaSpeedwayinFontana,California.(Watchtherobotsinactioninourexclusivevideo.)Twenty-threefinalistswereannouncedThursdayforSaturday'sGrandChallenge.The175-mile(282-kilometer)coursestartsandfinishesinPrimm,Nevada.Theracepromisestobeeventougherthanlastyear'srun.But18monthsisaneternityintheroboticsworld,andthetechnologyhasvastlyimproved.OrganizersbelieveseveralteamshavearealshotoffinishingtheraceinlessthantenhourstoearnthegrandprizeoftwomillionU.S.dollars."Whenthefirstteamoutofthechute(斜道)—Mojavaton,asmallteamoutofColorado—madeitsuccessfullyaroundthe2.2-mile(3.5-kilometer)qualificationcourse,Iknewrightthereandthenthatwehadsomethingspecial,"saidRonKurjanowicz,thechiefofstaffforthePentagon'sDefenseAdvancedResearchProjectsAgency(DARPA),whichissponsoringtherace.UnknownCourseTheaimoftheGrandChallenge,DefenseDepartmentofficialssay,istospurdevelopmentofautonomousgroundvehiclesthatcanoperateindangerousenvironments,suchaswarzones,keepingsoldiersoutofharm'sway.AU.S.Congressmandate(訓令)requiresthatone-thirdofmilitarygroundvehiclesdrivethemselvesby2015,butthetechnologytomeetthatmandatedoesnotyetexist.Sothegovernmentlookedtoenterprisingteamstodevelopthetechnologyfordriverlessvehicles,sweeteningitsofferwiththetwo-million-dollarpurse.Noneofthe23teamsknowswhatliesaheadforthisyear'srace.DARPAwon'trevealtheexactrouteuntiltwohoursbeforethestartoftheraceonSaturday.ButtheobstaclesontheFontanaqualificationcourse-includingasteel—enforcedtunnelthatwipesoutavehicle'sglobalpositioningsystem—aremadetoresembletherugged,real-lifeconditionsthatthevehicleswillhavetonavigate.Thevehiclesusesensorssuchaslasers,cameras,andradartohelpthemavoidobstaclessuchasrocksandcliffs.Thecomputer'sbrainhastofigureouthowtoresolveunexpectedconflicts,likeabouldersittinginthemiddleoftheroad."ThinkaboutallthedecisionsthatyouandIhavetomakewhenwedrivefromourhousetothestore,"Kurjanowiczsaid."Thesevehicleshavetodothesamething,withoutadriver."AmongthetopcontendersinSaturday'sraceisTerraMax,amassivetruckoriginallybuiltbytheWisconsin-basedOshkoshTruckCorporationfortheU.S.Marinecorps.Inlastyear'srace,TerraMaxmanagedtogoonly1.2miles(2kilometers).TeamleaderGarySchmiedelexpectstodomuchbetterthisyear.Hepointedtothenewall-wheelsteeringfeatureonthetruckasanimportantaddition."Wecanmovethislarge,15-ton(13.5-metricton)payloadvehicleinaturnthat'sequivalenttothatofaHumvee,"hesaid.GhostriderTheresourcesofteamslikeTerraMaxorCarnegieMellonUniversity,whichhastwovehiclesintheracethisyear,areafarcryfromthoseofsomeoftheothercompetitors,includinginventors,electricians,andevenahighschoolteam.Oneentry,fromaSouthernCaliforniateamofengineers,racers,andhot-rodders,iscalledItCameFromtheGarage.Ithasabeerkeg(小桶)stuckonthebackandanon-offswitchthatsays"brain.""Mostoftheschoolsandorganizationswe'reupagainstarejustaccessorizingconventionalvehicles,"saidteamleaderChris"C.J."Pedersen,aformeractor."Our[vehicle]isacustom-built,21st-centuryhotrod...completewithhoodscoopandexhaustcomingofftheside."AnthonyLevandowski,aroboticsbuilderfromBerkeley,California,isbackwithGhostrider,theonlymotorcyclerobotinthequalifications.Studdedwithsensorsandcomputers,ittoppled(翻倒)overafter3feet(1meter)inlastyear'srace.Levandowski,whohadtopostponehisgraduatestudieswhenhecouldn'tfindafacultyadvisorwhobelieveditwouldbepossibletobuildthemotorcyclerobot,sayshisvehiclehassomedistinctadvantages."We'resmallerandgoalotmoreplaces,"hesaidwhiletinkeringwiththerobotbeforeanothertrialrun."We'realsoalotlessexpensive.Thisbikecostsasmuchasatireorawheelofsomeoftheseotherguys'machines."SmartMoneyNeitherGhostridernorItCameFromtheGaragemadethefinalcutthisweek'squalifyingraces.However,anothercrowd-pleaser,Cajunbot—ortheRagin'Cajun—aconvertedall-terrainvehicledevelopedbyateamfromtheUniversityofLouisianainLafayette,did.ThesmartmoneyinSaturday'sracemaybeonStanley,aconvertedVolkswagenTouaregmadebyateamatCalifornia'sStanfordUniversity.Itwastheonlyvehiclethatdidn'thitanobstacleinthetrialruns.Evenifnoneofthevehiclesfinishestheracethisyear,DARPA'sKurjanowiczsaid,theeventhassucceededingalvanizingroboticsdevelopersandpushingthecreationofnewtechnologies."ThebeautyoftheGrandChallengeisthatitdoesn'ttellpeoplehowtosolvetheproblem,"hesaid."Thecommunityhascomeupwithitsownelegantsolutions."1.Thepassagemainlydescribestheadvantagesanddisadvantagesofrobotcarraces.2.Lastyear'srobotraceinNevadawasagreatsuccess.3.Itisasurprisethatupto43teamscameforthisyear'sracecalledtheGrandChallenge.4.ThePentagon'sDefenseAdvancedResearchProjectsAgency(DARPA)issponsoringtherace.5.TheaimoftheGrandChallengeistospurdevelopmentofautonomousgroundvehicles.6.GhostriderandItCameFromtheGaragebothmadethefinalcutatthisweek'squalifyingraces.7.TerraMaxwillfinishtheraceandwinthegrandprizeoftwomillionU.S.dollars.8.TheobstaclesontheFontanaqualificationcoursearemadetoresemblethe________________.9.Theonlymotorcyclerobotinthequalificationsis________________.10.Theonlyvehiclethatdidn'thitanobstacleinthetrialrunsis________________.PartIIIListeningComprehension(35minutes)SectionADirections:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarked[A],[B],[C]and[D],anddecidewhichisthebestanswer.ThenmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.11.[A]Atthedepartmentstore.[C]Intherestaurant.[B]Attheoffice.[D]Inthedrugstore.12.[A]Themanshouldn'texpecthertogoalong.[B]Shedoesn'tthinkshehasenoughmoney.[C]She'llgoeventhoughthemovieisbad.[D]Themanshouldcountthenumberofpeoplegoing.13.[A]Shewasn'treallystudying.[B]Shehadn'tfinishedwritingherarticles.[C]Shehadfurnishedherhouse.[D]Shecouldwritebeautifully.14.[A]Theproblemmayhavebeenaverycomplicatedone.[B]Noonecandoit.[C]Thewomanthinksthattheproblemistooeasy.[D]Themancansolvetheproblemhimself.15.[A]Thejanitoristoobusytodohiswork.[B]Thesanitaryconditionsofanapartment.[C]Therelationshipbetweenthejanitorandthetwospeakers.[D]Thearchitectureofabuilding.16.[A]Hecan'tteareitherpieceofcloth.[C]Thepiecesofclotharemadebyasecretprocess.[B]Hewantspartofeachpieceofcloth.[D]Thepiecesofclothseemidenticaltohim.17.[A]Tuesday.[C]Thursday.[B]Wednesday.[D]Friday.18.[A]Aphotographer'scamera.[C]Amoviecamera.[B]Atelevisioncamera.[D]Theman'sowncamera.Questions19to22arebasedontheconversationyouhavejustheard.19.[A]Memoriesofarecentstorm.[C]WeatherpatternsthatcanaffectFlorida.[B]Howstrongwindsdevelopintoahurricane.[D]Planningasummervacation.20.[A]Latesummerissunnyseason.[C]Latesummerisrainyseason.[B]Latesummerishurricaneseason.[D]Latesummeriscloudyseason.21.[A]Windspeed.[C]Watertemperature.[B]Rainfall.[D]Directionofapproach.22.[A]Byname.[C]Bylocation.[B]Bynumber.[D]Bymonth.Questions23to25arebasedontheconversationyouhavejustheard.23.[A]Herprofessordidnotlikeherstory.[B]Shehadtroublefinishingherassignment.[C]Shedidnotlikethetopicshehadchosenforherpaper.[D]Shewastakingtoomanycourses.24.[A]Takesomeextratime.[C]Dosomeworkforanothercourse.[B]Doawritingexercise.[D]Writethestoryendingfirst.25.[A]Togoshopping.[C]Tomeetwithherprofessor.[B]Todoresearchforherstory.[D]Totakeabreakfromherwork.SectionBDirections:Inthissection,youwillhear3shortpassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarked[A],[B],[C]and[D].ThenmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecenter.PassageOneQuestions26to28arebasedonthepassageyouhavejustheard.26.[A]Givenbythelocalgovernment.[C]Boughtfromdifferentcitiesandvillages.[B]Bornbyalargenumberofbitches.[D]Capturedovergrassland.27.[A]11-weekcourseforcontrolduty.[C]9-weekcourseforcontrolduty.[B]11-weekcourseforpatrolduty.[D]9-weekcourseforpatrolduty.28.[A]Catchingrunawaycriminals.[C]Patrollingthedangeroustown.[B]Scratchingthehiddenbombs.[D]Drug-sniffingorbomb-sniffing.PassageTwoQuestions29to31arebasedonthepassageyouhavejustheard.29.[A]Goldwasdiscovered.[B]Thetranscontinentalrailroadwascompleted.[C]ThegoldenGateBridgewasconstructed.[D]TelegraphcommunicationswereestablishedwiththeEast.30.[A]Abouttwomillion.[C]Aboutfivemillion.[B]Aboutthreemillion.[D]Aboutsixmillion.31.[A]19milliondollars.[C]37milliondollars.[B]32milliondollars.[D]42milliondollars.PassageThreeQuestions32to35arebasedonthepassageyouhavejustheard.32.[A]Computershavebecomepartofourdailylives.[B]Computershaveadvantagesaswellasdisadvantages.[C]Peoplehavedifferentattitudestocomputers.[D]Moreandmorefamilieswillowncomputers.33.[A]Computerscanbringfinancialproblems.[B]Computerscanbringunemployment.[C]Computerscanbeveryusefulinfamilies.[D]Computerizedrobotscantakeoversomeunpleasantjobs.34.[A]Computersmaychangethelifetheyhavebeenaccustomedto.[B]Spendingtoomuchtimeoncomputersmayspoilpeople'srelationship.[C]Buyingcomputersmaycostalotofmoney.[D]Computersmaytakeoverhumanbeingsaltogether.35.[A]Affectionate.[C]Approving[B]Disapproving.[D]Neutral.SectionCDirections:Inthissection,youwillhearapassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblanksnumberedfrom36to43withtheexactwordsyouhavejustheard.Forblanksnumberedfrom44to46youarerequiredtofillinthemissinginformation.Fortheseblank,youcaneitherusetheexactwordsyouhavejustheardorwritedownthemainpointsinyourownwords.Finally,whenthepassageisreadforthethirdtime,youshouldcheckwhatyouhavewritten.Developmentbanksareinternationallendinggroups.Theylendmoneytodevelopingcountriestohelpfueleconomicgrowthandsocial(36)________.TheyarenotpartoftheWorldBank,theInternational(37)________FundortheUnitedNations.Themoneycomesfrommembercountriesandborrowingonworldmarkets.Developmentbanksprovidelong-termloansatmarket(38)________.Theyprovideevenlonger-termloansatbelow-marketinterestrates.Thesebanksalsoprovidetechnical(39)________and(40)________.Therearefourmainones.TheoldestistheInter-AmericanDevelopmentBankinWashington,D.C.Itbeganin1959.PresidentJuscelinoKubitschekofBrazilhad(41)________abanktoaideconomicgrowthintheAmericas.The(42)________ofAmericanStatesagreed.Todaythebankisworthover100,000milliondollars.Itholdsonly4percentofthat.Theothermoneyis(43)________byitsmembers.(44)________________________________________.26countriesinLatinAmericaandtheCaribbeanborrowfromthebank.TheAfricanDevelopmentBankhasitsrootsinanagreementsignedinSudanin1963.ItisbasedinAbidjan,IvoryCoast.(45)________________________________________.ThecountrywiththemostvotesinthebankisNigeria,followedasofJulybytheUnitedStates,JapanandEgypt.TheAsianDevelopmentBankstartedin1966.ItisbasedinManila,inthePhilippines.Thereare63members,mostlyinAsia.(46)________________________________________.PartIVReadingComprehension(ReadinginDepth)(25minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinbankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecenter.Youmaynotuseanyofthewordsinthebankmorethanonce.Questions47to56arebasedonthefollowingpassageAsunflowerisasunflower.Amobilephoneisamobilephone.Butcanyou47thetwotodosomethingforyourlocal48?Itmaywellbepossible.Whenyouhavefinishedwithyourmobilephoneyouwillbeableto49itinthegardenoraplantpotandwaitforittoflower.50,abiodegradable(生物可降解的)mobilephonewasintroducedbyscientists.Itishopedthatthenewtypeofphonewillencourage51torecycle.Scientistshavecomeupwithanewmaterialoverthelastfiveyears.Itlookslikeanyother52andcanbehardorsoft.andabletochangeshape.Overtimeitcanalsobreakdownintothesoilwithoutgivingoutanytoxic53.Britishresearchersusedthenewmaterialtodevelopaphonecoverthatcontainsasunflowerseed.Whenthisnewtypeofcoverturnsintowaste,it54nitrates(硝酸鹽).Thesefeedtheseedandhelptheflowergrow.Engineershavedesignedasmall55windowtoholdtheseed.Theyhavemadesureitonlygrowswhenthephoneisthrownaway."We'veonlyputsunflowerseedsintothecoverssofar.Butweareworkingwithplant56tofindoutwhichflowerswouldperformbest.Maybewecouldputrosesinnexttime,"saidonescientist.[A]Recently[B]consumers[C]chemicals[D]environment[E]combine[F]transparent[G]buy[H]companion[I]experts[J]forms[K]bury[L]paper[M]paper[N]plastic[O]UsuallySectionBDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.Foreachofthemtherearefourchoicesmarked[A],[B],[C]and[D].YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecenter.PassageOneQuestions57to61arebasedonthefollowingpassage.Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.Themeaningsofthousandsofeverydayperceptions,thebasisforthedecisionswemake,andtherootsofourhabitsandskillsaretobefoundinourpastexperiences,whicharebroughtintothepresentbymemory.Memorycanbedefinedasthecapacitytokeepinformationavailableforlateruse.Itnotonlyincludes"remembering"thingslikearithmeticorhistoricalfacts,butalsoinvolvesanychangeinthewayananimaltypicallybehaves.Memoryisinvolvedwhenaratgivesupeatinggrainbecausehehassniffed(嗅出)somethingsuspiciousinthegrainpile.Memoryexistsnotonlyinhumansandanimalsbutalsoinsomephysicalobjectsandmachines.Computers,forexample,containdevicesforstoringdataforlateruse.Itisinterestingtocomparethememorystoragecapacityofacomputerwiththatofahumanbeing.Theinstantaccessmemoryofalargecomputermayholdupto100,000"words"—stringofalphabeticornumericalcharacters—readyforinstantuse.AnaverageU.S.teenagerprobablyrecognizesthemeaningofabout100,000wordsofEnglish.However,thisisbutafractionofthetotalamountofinformationthattheteenagerhasstored.Consider,forexample,thenumberoffacesandplacesthattheteenagercanrecognizeonsight.Theuseofwordsisthebasisoftheadvancedproblem-solvingintelligenceofhumanbeings.Alargepartofaperson'smemoryisintermsofwordsandcombinationsofwords.Butwhilelanguagegreatlyexpandsthenumberandthekingofthingsapersoncanremember,italsorequiresahugememorycapacity.Itmaywellbethiscapacitythatdistinguisheshumans,settingthemapartfromotheranimals.57.WhichofthefollowingisTRUEaboutmemory?[A]Ithelpsusperceivethingshappeningarounduseveryday.[B]Itisbasedonthedecisionswemadeinthepast.[C]Itisrootedinourpasthabitsandskills.[D]Itconnectsourpastexperienceswiththepresent.58.Accordingtothepassage,memoryishelpfulinone'slifeinthefollowingaspectsEXCEPTthat________.[A]itinvolvesachangeinone'sbehavior[B]itkeepsinformationforlateruse[C]itwarnspeoplenottodothingsrepeatedly[D]itenablesonetoremembereventsthathappenedinthepast59.Whatistheauthor'sviewaboutcomputersandhumanbeingsintermsofintelligence?[A]Computershavebettermemorythanachilddoes.[B]Computersareasintelligentasateenageris.[C]Computerscanunderstandasmanyas100,000words.[D]Humanbeingsarefarsuperiortocomputers.60.Whatisthemajorcharacteristicofman'smemorycapacityaccordingtotheauthor?[A]Itcanbeexpandedbylanguage.[C]Itmaykeepalltheinformationinthepast.[B]Itcanrememberallthecombinedwords.[D]Itmaychangewhathasbeenstoredinit.61.Humanbeingsmakethemselvesdifferentfromotheranimalsby_______.[A]havingtheabilitytoperceivedanger[B]havingafargreatermemorycapacity[C]havingtheabilitytorecognizefacesandplacesonsight[D]havingtheabilitytodrawonpastexperiencesPassageTwoQuestions62to66arebasedinthefollowingpassage."Family"isofcourseanelasticword.ButwhenBritishpeoplesaythattheirsocietyisbasedonfamilylife,theyarethinkingof"family"initsnarrow,peculiarlyEuropeansenseofmother,fatherandchildrenlivingtogetheraloneintheirownhouseasaneconomicandsocialunit.Thus,everyBritishmarriageindicatesthebeginningofanewandindependentfamily—hencethetremendousimportanceofmarriageinBritishlife.Forboththemanandthewoman,marriagemeansleavingone'sparentsandstartingone'sownlife.Theman'sfirstdutywillthenbetohiswife,andthewife'stoherhusband.Hewillbeentirelyresponsibleforherfinancialsupport,andshefortherunningofthenewhome.Theirchildrenwillbetheircommonresponsibilityandtheirsalone.Neitherthewife'sparentsnorthehusband's,northeirbrothersorsisters,auntsoruncles,haveanyrighttointerferewiththem—theyaretheirownmasters.ReadersofnovelslikeJaneAusten'sPrideandPrejudicewillknowthatinformertimesmarriageamongwealthyfamilieswasarrangedbythegirl'sparents,thatis,itwastheparents'dutytofindasuitablehusbandfortheirdaughter,preferablyarichone,andbyskillfulencouragementtoleadhimeventuallytoasktheirpermissiontomarryher.Untilthattime,thegirlwasprotectedandmaintainedintheparents'home,andthefinancialreliefofgettingridofhercouldbeseenintheirgivingthenewlymarriedpairasumofmoneycalledadowry(嫁妝).Itisverydifferenttoday.Mostgirlsoftodaygetajobwhentheyleaveschoolandbecomefinanciallyindependentbeforetheirmarriage.Thishashadtworesults:agirlchoosesherownhusband,andshegetsnodowry.62.Whatdoestheauthormeanby"'Family'isofcourseanelasticword"?[A]Differentfamilieshavedifferentwaysoflife.[B]Differentdefinitionscouldbegiventotheword.[C]Differentnationshavedifferentfamilies.[D]Differenttimesproducedifferentfamilies.63.ForanEnglishfamily,thehusband'sdutyis________.[A]supportingthefamilywhilethewifeisfinancial[B]defendingthefamilywhilethewifeisrunningthehome[C]financialwhilethewifeisrunningthehome[D]independentwhilethewifeisdependent64.Everythingisdecidedinafamily________.[A]bythecouple[C]bybrothersandsisters[B]withthehelpoftheirparents[D]withthehelpofauntsanduncles65.WhatisTRUEconcerningthebookPrideandPrejudice?[A]Itisthebestbookonmarriage.[B]Itisahandbookofmarriage.[C]ItgivesquitesomeideasofEnglishsociallifeinthepast.[D]Itprovidesalotofinformationofformertimewealthyfamilies.66.WithregardtomarriageinBritain,presentdaygirlsdifferfromformertimegirlsin________.[A]therighttomarry[C]choosinghusbands[B]moreparentalsupport[D]socialpositionPartVCloze(15minutes)Directions:Thereare20blanksinthefollowingpassage.Foreachblanktherearefourchoicesmarked[A],[B],[C]and[d]ontherightsideofthepaper.YoushouldchoosetheONEthatbestfitsintothepassage.ThenmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecenter.Anadultgiraffe'sheadisaboutsixfeetaboveitsheart.Thismeansthatto67enoughblooduptothebrainthecirculatory68mustbestrongenoughtokeepthebloodatveryhighpressure.Biologistshaveknownforsometimethatgiraffessolvethisproblembyhaving69highbloodpressure,about70thatofhumanbeings.Butaninternationalteamofbiologistsbeganto71aboutthis.Ifgiraffeshavesuchhighbloodpressure,theyshouldhavea72problemwithswellingintheirlegsandfeet.Whydon'tgiraffeshaveswollenfeet?Giraffesshouldhave73problem,too.Everytimetheybendheads74todrink,thebloodshould75totheirheadsandhaveahardtime76backup(whentheheadisdown)totheheart.Howcomegiraffesdon'tblackoutwhentheydrink?Theanswertothe77feetproblem,theresearchersfound,isthatgiraffeshave78theresearcherscalla"naturalanti-gravitysuit".It79outthattheskinandother80intheirlegsandfeetare81stifferandtougherthanthoseofother82.Asaresult,thebloodvesselsinthelegcannotswell.Therefore,thebloodhasnowheretogobutbacktotheheart.Whataboutbloodrushingtothehead83thegiraffebendsdowntodrink?Theresearchersfoundthatthegiraffe'sjugularvein,which84bloodfromtheheadbacktotheheart,haslotsofone-wayvalvesinit.Inthegiraffe'sneck,therearelotsofmusclesthatflexandrelaxrepeatedlyastheanimalmovesitsheadandsucks85drinkingwater.Bysqueezingthevalvedjugularvein,they86bloodmovingbacktotheheartevenwhiletheanimalisdrinking.67.[A]bring[B]produce[C]transfer[D]pump68.[A]structure[B]system[C]function[D]organism69.[A]unusually[B]generally[C]uncomfortably[D]commonly70.[A]half[B]multiple[C]double[D]pair71.[A]investigate[B]wonder[C]undertake[D]learn72.[A]terrible[B]unreliable[C]unsolvable[D]advisable73.[A]other[B]some[C]others[D]another74.[A]up[B]down[C]toward[D]aside75.[A]crush[B]brush[C]push[D]rush76.[A]following[B]returning[C]plowing[D]pouring77.[A]healthy[B]swollen[C]dreary[D]radical78.[A]what[B]where[C]that[D]those79.[A]reveals[B]indicates[C]figures[D]turns80.[A]tissues[B]vessels[C]pores[D]organs81.[A]many[B]very[C]much[D]less82.[A]giraffes[B]animals[C]people[D]creatures83.[A]whenever[B]whatever[C]however[D]wherever84.[A]reflects[B]releases[C]receives[D]carries85.[A]in[B]up[C]to[D]from86.[A]permit[B]prevent[C]retain[D]keepPartVITranslation(5minutes)Directions:CompletethesentencesonAnswerSheet2bytranslatingintoEnglishtheChinesegiveninbrackets.87.Livinginthedeserthasmanyproblems,________________________(缺水并不是惟一的問題).88.Theproduction________________________(增加到每月500噸)bytheendofthismonth.89.Somechildrenputmuchemphasis________________________(有足夠的錢以便到外面去痛快享受).90.Please________________________(不要忘記讓你姐姐到超市買一些牛排).91.Thestudentsnow________________________(寧愿上網，也不愿意到圖書館去看書).PartIWritingDearMark,YouwillneverguesswhatIamgoingtotellyouinthisletter.IhavereceivedtheletterofadmissionfromHarvardUniversity.ThismeansIamgoing