2022年江蘇省鎮(zhèn)江市大學英語6級大學英語六級模擬考試(含答案)

2022年江蘇省鎮(zhèn)江市大學英語6級大學英語六級模擬考試(含答案)學校:________班級:________姓名:________考號:________

一、2.ReadingComprehension(SkimmingandScanning)(20題)1.

Registrationisanecessarysteptopresentpatient'srelevantinformation,butinurgentcases,itcanbedonelaterat______.

2.WilltheWorldRememberDisneyorPlato?

SignificantWorldwideInfluenceofAmericanCulture

LONDON--Downinthemall,betweenthefast-foodjointandthebagelshop,agroupofyoungpeoplehuddlesinaflurryofbaggycombatpants,skateboards,andslang.TheysizeupawomanteeteringpastwearingDKNY,carryingTimemagazineinonehandandalatteintheother.ShebrushespastaguyinaYankees'baseballcapwhoistalkingonhisMotorolacellphoneabouttheMartinScorsesefilmhesawlastnight.It'sastandardAmericanscene--onlythisisn'tAmerica,it'sBritain.U.S.cultureissopervasivethatthescenecouldbeplayedoutinanyoneofdozensofcities.

Asaglobalsuperpower,Americaexportsitscultureonanunprecedentedscale.Frommusictomedia,filmtofastfood,languagetoliteratureandsport,theAmericanideaisspreadinginexorably(不可阻擋地),notunliketheinfluenceofempiresthatprecededit.Thedifferenceisthattoday'stechnologyflingsculturetoeverycorneroftheglobewithblindingspeed.IfittooktwomillenniumsforPlato's"Republic"toreachNorthAmerica,thelatesthitfromJustinTimberlakecanbefoundinGreek(andJapanese)storeswithindays.Sometimes,U.S.idealsgettransmitted--suchasindividualrights,freedomofspeech,andrespectforwomen--andlocalculturesareenriched.Atothertimes,materialismorworsebecomesthemessageandlocaltraditionsgetcrushed.

"TheU.S.hasbecomethemostpowerful,significantworldforceintermsofculturalimperialism[and]expansion,"saysIanRalston,AmericanstudiesdirectoratLiverpoolJohnMooresUniversity."TheareasthatparticularlyspringtomindareHollywood,popularmusic,andevenliterature."

Butwhatsomecall"McDomination"hascreatedabacklash(強烈反應)incertaincultures.Andit'snotclearwhetherfastfood,Disney,orrock'n'rollwillchangetheworldthewayHomerorShakespearehas.

Hollywoodrulestheglobalmoviemarket,withupto90percentofaudiencesinsomeEuropeancountries.EveninAfrica,twoofthreefilmsshownareAmerican.FewcountrieshaveyettobetouchedbyMcDonald'sandCoca-Cola.StarbucksrecentlyopenedupanewfrontinSouthAmerica,andeveryone'sgotaHardRockCalfT-shirtfromsomewhereexotic.

WestIndiansportsenthusiastsincreasinglywatchbasketball,notcricket.BaseballhaslongsincetakenrootinAsiaandCuba.AndChineseyoungpeoplearebecomingmorecaptivatedbyAmericanfootballandbasketball,someevenprintingthenamesofNBAstarsontheirschoolsweatsuits.AmericanEnglishisthelanguageofchoiceforwould-bepopstarsinEurope,softwareprogrammersinIndia,andInternetsurferseverywhere.

America'spreeminenceishardlysurprising.Superpowershavethroughouttheagessoughttoperpetuatetheirwayoflife:fromthephilosophyandmythologyoftheancientGreekstothelawandlanguageoftheRomans;fromtheartandarchitectureoftheTangDynastyandRenaissance.ItalytothesportsandsystemsofgovernmentoftheBritish.

"Mostempiresthinktheirownpointofviewistheonlycorrectpointofview,"saysRobertYoung,anexpertinpostcolonialculturaltheoryatOxfordUniversity."It'sthecertaintytheygetbecauseofthepowertheyhave,andtheyexpecttoimposeitoneveryoneelse."

ThreatsofAmericanCulturalDomination

Detractorsofculturalimperialismargue,however,thatculturaldominationposesatotalitarianthreattodiversity.IntheAmericancase,"McDomination"posesseveraldangers.

First,localindustriesaretrulyatriskofextinctionbecauseofU.S.oligopolies(寡頭賣主壟斷),suchasHollywood.Forinstancein2000,theEuropeanUnionhandedoutonebillioneurostosubsidise(資助)Europe'sfilmindustry.EventherelativelysuccessfulBri

A.YB.NC.NG

3.

Ifyoubuyanewhybrid,youcan______fromthefederalgovernment.

4.

Studentsretainmoreinformationandpaymoreattentionifthey______.

5.

SomeravensinNorthAmericaapplytheirintelligenceforthegoodoftheflockby______theotherstohisfoodstore.

6.

Disposableproductsarenotbeneficialtothedevelopmentofmodernindustry.

A.YB.NC.NG

7.

In2025,halfoftoday'spopulationwillbeinshortageofwater.

A.YB.NC.NG

8.Domesaretheenvironment-friendlybuilding.

9.

Totradewiththethirdworldismainlybecausethatitisfullofnaturalresources.

A.YB.NC.NG

10.

Accordingtothepassage,ajobapplicantshouldtakecareofhisorher______.

11.

ManycriminalsinEnglandweresentto______becausetheywerenot"goodcitizens".

12.

______isthenameofaCambridge-basedcompanythatistryingtocreatethekindofcomputerwhichmightreceivethecontentsofabrain.

13.

Whatareretireesbelowtheageof65suggestedtodowhentheirCOBRArunsout?

A.ToapplyforMedicalbenefits.

B.Tobuyanotherinsurancepolicy.

C.TorenewtheirCOBRA.

D.Toaskforhelpfromthegovernment.

14.

WorkbyEbbinghaushighlightedthat______werelostfrommemoryinhis"forgettingcurve"study.

15.

Inordertorightthewrongbyfurtherhonoringthesepeople,acampaignisbeinglaunchedto______.

16.

Adepressedpersonmightfeelhopeless,helplessandoverwhelmedifheisinclinedto______oflife.

17.

Theexactprocedures,bywhichonecantellwhetherenoughpainthasbeenapplied,arerevealedinthistext.

A.YB.NC.NG

18.

Engineersandbiologistsworktogethertofindnaturalsolutionstotechnologicalproblems.

A.YB.NC.NG

19.

AccordingtoPatriciaMorgantheincreasingnumberofwomenwhohavechildrenlateordon'twanttogivebirthtochildrenarethosewhoare______.

20.

Competitionforgradesandotherpressuresaresupposedtotaketheresponsibilityof______.

二、3.ListeningComprehension(20題)21.(13)

A.He'sasecretary.

B.He'sanovelist.

C.He'sanewspaperman.

D.He'saworker.

22.(36)

A.Theyhaveveryfewhairsontheirbodies.

B.Theybeartheiryoungratherthanlayingeggs.

C.Theirlungsarefullofhotairandwater.

D.Theycanwalkontheirhindlegsonland.

23.聽力原文：W：Theseminarscheduledfortodayhasbeencanceled.

M：Thatisbad,butatleasttheonefornextweekisstillon．

Q：Whatdoesthemanmean?

(16)

A.Today'sseminarwasinformative.

B.Therewillbenotherseminarthefollowingweek.

C.Nextweek'sseminarisonadifferenttopic.

D.Therewillbetwoseminarsnextweek.

24.

【B7】

25.SectionC

Directions:Inthissection,youwillhearapassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblanksnumberedfrom36to43withtheexactwordsyouhavejustheard.Forblanksnumberedfrom44to46youarerequiredtofillinthemissinginformation.Fortheseblanks,youcaneitherusetheexactwordsyouhavejustheardorwritedownthe

聽力原文：Lastyear,researcherspublishednewfindingsfromtheWomen'sHealthInitiative,along-termstudyofmorethan160000midlifewomen.Thedatashowedthatmultivitamin-takersarenohealthierthanthosewhodon'ttakethepills,atleastwhenitcomestothebigdiseases-cancer,heartdisease,andstroke"Evenwomenwithpoordietsweren'thelpedbytakingamultivitamin,"saysstudyauthorMarianNeuhouser,PhD,inthecancerpreventionprogramattheFredHutchinsonCancerResearchCenter,inSeattle.

Vitaminsupplementscameintofashionintheearly1900s,whenitwasdifficultorimpossibleformostpeopletogetawidevarietyoffreshfruitsandvegetablesyear-round.Backthen,vitamindeficiencydiseasesweren'tunheard-of:thebowedlegsandconfusionribscausedbyasevereshortageofvitaminD,ortheskinproblemsandmentalconfusioncausedbyalackofvitaminB.

Butthesedays,you'reextremelyunlikelytobeseriouslydeficientifyoueatanaverageAmericandiet,ifonlybecausemanypackagedfoodsarevitamin-enriched.Sure,mostofuscoulddowithacouplemoredailyservingsofproduce，butamultidoesn'tdoagoodjobatsubstitutingforthose."Multivitaminshavemaybetwodozeningredients--butplantshavehundredsofotherusefulcompounds,"Neuhousersays."Ifyoujusttakeamultivitamin，you'remissinglotsofcompoundsthatmaybeprovidingbenefits."

Thatsaidthereisonegroupthatprobablyoughttokeeptakingamulti-vitamin:womenofreproductiveage.Thesupplementisinsuranceincaseofpregnancy.AwomanwhogetsadequateamountsoftheBvitaminismuchlesslikelytohaveababywithabirthdefect.

Lastyear,researcherspublishednewfindingsfromtheWomen'sHealthInitiative,along-termstudyofmorethan160000midlifewomen.Thedatashowedthatmultivitamin-takersareno【B1】______thanthosewhodon'ttakethepills,atleastwhenitcomestothebigdiseases-cancer,heartdisease,and【B2】______

"Evenwomenwithpoordietsweren'thelpedbytakingamultivitamin,"saysstudyauthorMarianNeuhouser,PhD,inthecancer【B3】______programattheFredHutchinsonCancerResearchCenter,inSeattle.

Vitamin【B4】______cameintofashionintheearly1900s,whenitwasdifficultorimpossibleformostpeopletogetawidevarietyoffreshfruitsandvegetablesyear-round.Backthen,vitamin【B5】______diseasesweren'tunheard-of:thebowedlegsand【B6】______ribscausedbyasevereshortageofvitaminD,ortheskinproblemsandmental【B7】______causedbyalackofvitaminB.

Butthesedays,you're【B8】______unlikelytobeseriouslydeficientifyoueatanaverageAmericandiet,ifonlybecausemanypackagedfoodsarevitamin-enriched.Sure,【B9】______."Multivitaminshavemaybetwodozeningredients--butplantshavehundredsofotherusefulcompounds,"Neuhousersays."【B10】______."

Thatsaidthereisonegroupthatprobablyoughttokeeptakingamulti-vitamin:womenofreproductiveage.Thesupplementisinsuranceincaseofpregnancy.【B11】______.

【B1】

26.(22)

A.Tileconsumers.

B.TheTVstation.

C.Thecompany.

D.Theaudience.

27.(21)

A.Itbillsthecustomeronceamonth.

B.It'sakindofATMcards.

C.It'sakindofcreditcards.

D.Ittakesoutthemoneyfromthecustomer'sbankaccount.

28.(35)

A.ItinfluencesthesurfacetemperatureofMars.

B.Itprotectslivingbeingsfromharmfulrays.

C.Itkeepsaplanetfromoverheating.

D.Itisthemaincomponentoftheairpeoplebreathe.

29.

【B9】

30.(28)

A.Lincoln,EisenhowerandRichardNixonrespectivelyheldthepresidencyintheUSA.

B.TheRepublicansalwaysfailtowinamajorityinCongress.

C.TheRepublicanPartyismoreconservativethantheDemocracyParty.

D.Republicanswereblamedfortheeconomiccrisisof1929.

31.SectionC

Directions:Inthissection,youwillhearapassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblanksnumberedfrom36to43withtheexactwordsyouhavejustheard.Forblanksnumberedfrom44to46youarerequiredtofillinthemissinginformation.Fortheseblanks,youcaneitherusetheexactwordsyouhavejustheardorwritedownthe

Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthenations,otherssaythatthe【B1】______istrue:internationalcontestsencouragefalsenationalprideandleadtomisunderstandingand【B2】______.

Onecountryreceiveditssecond-placemedalswithvisible【B3】______afterthehockeyfinal.Therehadbeennoisyscenesattheend,thelosers【B4】______tothefinaldecisions.Theywere【B5】______thatoneoftheirgoalsshouldnothavebeendisallowedandthattheir【B6】______victorywasunfair.Theirmanagerwasinaragewhenhesaid:"HockeyandtheInternationalHockeyFederationarefinished."ThepresidentoftheFederationsaidlaterthatsuchbehavior.couldresultinthe【B7】______oftheteamforatleastthreeyears.

TheAmericanbasketballteamannouncedthattheywouldnotyieldfirstplacetoRussia,aftera【B8】______endtotheircontest.ItwasthoughtatfirstthattheUnitedStateshadwon,byasinglepoint,butitwasannouncedthattherewerethreesecondsstilltoplay.【B9】______.TheAmericanplayersthenvotednottoreceivethesilvermedals.

【B10】______.InthepresentorganizationoftheOlympicsthereisfartoomuchthatencouragesaggressivepatriotism.【B11】______.

【B1】

32.

【B3】

33.(34)

A.In1585.B.In1584.C.In1583.D.In1586.

34.(25)

A.TheComputerCenter.

B.Thelibrary.

C.Thephotocopyingfacilities.

D.Thelecturerooms.

35.

【B2】

36.

【B11】

37.SectionA

Directions:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA,B,CandD,anddecidewhichisthebestanswer.

(12)

A.Maryearnedtheprize.

B.Maryhasgrantedtheprize.

C.MaryfailsintheSpeechcontest.

D.Themandoesn'tthinkMarydeservestheprize.

38.聽力原文：Asatradition,workersincompaniesarealwaysrequiredtowearsuitsandfie,butaccordingtoaseniorgovernmentofficial,Thailandistoaskworkerstostopwearingsuitsaspartofthecountry'slatestmeasuretoconserveenergy.Thisistheideaofthenewgovernment,becauseThailandisatropicalcountryandair-conditionershavebeenusedverycommonly,whichconsumealargeamountofenergy,butiftheworkersturnedupinshirtsleeves,theywouldn'tneedair-conditionersturnedupsohigh.Atitsweeklymeeting,thecabinetpassedaresolutionaskingallpublicservantsnottowearjacketsandurgingprivateemployeestodothesame.Thishasalreadybeenpractisedbythegovernment.Atarecentmeeting,onlyfourofsixair-conditionersinthecabinetroomhadbeenturnedon.Oneofthegovernmentofficialssays,"Initiallyitwasnothotintheroom,butifameetinglastsalongtime,thetemperaturemightneedtobeloweredabit."

(31)

A.NewFashioninThailand.

B.HowtoUseAir-conditionerwisely.

C.ANewWaytoSaveEnergy.

D.Air-conditionerinThailand.

39.聽力原文：M:Niceworkingwithyou.Ihopewecandobusinessagain.

W:Yes,Iwouldlikethat.

Q:Whatistherelationshipbetweenthetwospeakers?

(19)

A.Businessassociates.

B.Bossandsecretary.

C.Teacherandstudent.

D.Goodfriends.

40.(46)

三、4.ReadingComprehension(ReadinginDepth)(20題)41.SectionA

Directions:Inthissection,thereisashortpassagewith5questionsorincompletestatements.Readthepassagecarefully.Thenanswerthequestionsorcompletethestatementsinthefewestpossiblewords.

ItseemslikeAmericansusecreditcardsforeverything.It'saloteasiertospendmoneythatyoudon'tsee,isn'tit?ManyAmericansspendmoneythatisn'teventhere—andgetdeeperanddeeperindebt.Whydosomanypeoplespendmorethantheyhave?"Buynow,paylater"hasbecomeanAmericanwayoflife.Recently,Americanhouseholdsspentnearly11billiondollarsmorethantheyearned,creatingnegativesavingrate.

Therearetwoideas--one,livingwithinyourmeans,andtheideathatlivingondebtisagreatequalizer(平衡裝置).Theybothhavevaliditybecauseitisimportantthatsomeonelivewithintheirmeansovertheirlifetime.Whenpeopleareyoungandtheyareearningmoneybuttheyhaveverylittlesavings,theyalmosthavetoborrowinordertoownahouseorownacar.Butastheygrowolder,theyshoulddevelopthehabitofsaving,sothatbythetimetheyreachtheendoftheirearninglife,theyhavesavingstoliveoninretirement,andlivewithintheirmeans.

"Buynow,paylater"isworkedverywellforusinthe90's,butonesuspectsitwon'tworkforever.TheonlythinkthatconcernsmeisthatAmericansaresocontented,sooptimistic,sounconcernedaboutanybumpsintheroadthatmanyAmericanhouseholds,notallofthem,butmanyAmericanhouseholdsareveryheavilyextendedinpersonalcredit.Alotofcreditcarddebt;peoplearepayingveryhighpricesforhousesandborrowingheavilyagainstthoseprices;andifwedorunintoabumpintheroad,arecession,therearegoingtobealotofhouseholds,notallofthem,butmanyhouseholdsthat'llbeseverelysqueezed.Thatmeanswe'remorevulnerabletoseriousfinancialdistressthanJapanis.Japanhasbeeninfinancialdistressfortenyears,butonereasonit'sbeenabletoweatherthatisthatthehouseholdshadbeenveryconservative,hadalotofsavings,wereveryliquid,andwereabletoweatherdifficulttimes.AndmanyAmericanhouseholdswouldnowbelessabletodothatbecausetheyaretoheavilyindebt.

WeknowfromthepassagethatcreditcardsmakeAmericansget______indebt.

42.

BothFelixWarnekenandJosepCallagreethat______.

A.thestudyconfirmsusofthecollaborativebehavior.ingorillas

B.chimpanzeesalsohavetilesamebehavior.asthegorillas

C.it'soutofquestionthatgorillashavetheoryofmind

D.onlygorillascouldgivecollaborativebehavior

43.FilmisamediumthatmighthavebeenespeciallymadeforAmerica,avastcountrywhich,bythebeginningofthetwentiethcentury,hadalargeimmigrantpopulation,manyofwhomcouldhardlyspeakEnglish.Thesepeople'wouldhavehadlittleuseforthetheatre,eveniftheylivedwithineasydistanceofone.orformostofthebookstheycouldbuybecausetheydidnothaveenoughEnglish.Butthemoviesthesilentmoviesthesetheycouldallunderstand,sowhatAmericahadmorethananyEuropeancountrywasahugecaptiveaudience,alargeproportionofthemprettywelluneducated.Andwhatthesepeoplewantedweresimplestoriesinwhich,irrespectiveofthefacttheycouldn'tunderstandthecaptions,theactiontoldall.

Infeedingthegrowingdemandforscreenentertainment,AmericawasgreatlyhelpedbytheFirstWorldWar.Between1914and1918themakingoffilmswasnotexactlyhighonthelistofanyEuropeancountry'spriorities.Filmscontinuedtobemadebutnottothesameextentasbefore,andtofillthegapinforeignimports,Americahadtoincreaseitsownproduction.Bytheendofthedecade,withHollywoodnowfirmlyestablishedasthecenteroftheindustry,Americawaswellonitswaytomonopolizingtheworldmarket.

Butifbythebeginningofthe1920sAmericawastheworldleaderinfilmproduction,itwasnotthennorhasitbeensince--intheleadwhenitcomestodevelopingfilmasanartform.Hollywoodfilmisnotinterestedinartsitisinterestedinmoneyandthetworarelygotogether.ToHollywoodfilmis,andreallyalwayshasbeen,anindustry.Thereisnothingaboutthisattitudethatshouldmakeuslookdownonit.Themakerofdecent,serviceableandmass-producedfurnitureisnottobelookeddownonbecauseheisn'tChippendale.Youmightwishhewere,but.thatisanothermatter.SoHollywoodquicklyrecognizedfilmasanentertainmentmediumwithauniqueabilitytoputpeopleontoseatsandmoneyinthepocketsofproducers,distributorsandcinemamanagersand,mostly,leftittootherstodevelopitspotentialasanartform.

Generallyspeaking,theeffortstoextendtheboundariesoffilm--toshowthatitcoulddomorethancarchases,romanceandclowning--werebeingmadeelsewhere.Inthe1920sinGermany,forexample,expressionismwasanartisticmovementwhichusedfilmasamedium.ExpressionismisdescribedintheOxfordCompaniontoFilmas"amovementwhosemainaimwastoshowinimagesman'sinnerworldandinparticulartheemotionsoffear,hatred,loveandanxiety".Thesedays,mostseriousandsometimesnotsoseriousfilmsattempttodosomethinglikethatasamatterofcourse.

ThelargeimmigrantpopulationinAmericapreferfilmtootherentertainmentmediaBecause______.

A.thefilms,especiallysilentfilms,wereusuallyeasytounderstand

B.theycouldnotaffordtobuybooksormagazines

C.theydidnothavetheatrescloseenoughtotheirhomes

D.thefilmcaptionsweresimpleenoughforthemtounderstand

44.

WhatarethethreewaysinwhichmasstransportationrevisedthesocialandeconomicfabricoftheAmericancity?Theyaretheaccelerationof______.______and______.

45.Fromthelastparagraphwecanlearnthat______.

A.youarecertaintoearnmuchmoneyinthenetworkmeting

B.successinthenetworkmarketingisuptoyouandyourprogress

C.makingmoneyinthenetworkmarketingisaneasyjob

D.youdon'tbesofeeltoworkwithanetworkmarketingcompany

46.

Whichofthefollowing,ifpresentedasthefirstsentenceofasucceedingparagraph,wouldmostlogicallycontinuethediscussionpresentedinthepassage?

A.Timekeepinginmedicaltomographymustbeprecisebecausethechangesintraveltimecausedbydensityfluctuationsareslight.

B.Tounderstandhowoceanacoustictomographyworks,itisnecessarytoknowhowsoundtravelsintheocean.

C.Shipsareanotherpossibility,buttheywouldneedtostopevery50kilometerstolowermeasuringinstruments.

D.Thesevariationsamounttoonlyabout2to3percentoftheaveragespeedofsoundinwater,whichisabouti500meterspersecond.

47.Ironically,intheUnitedStates,acountryofimmigrants,prejudiceanddiscriminationcontinuetobeseriousproblems.Therewasoftentensionbetweeneachestablishedgroupofimmigrantsandeachsucceedinggroup.Aseachgroupbecamemorefinanciallysuccessful,andmorepowerful,theyexcludednewcomersfromfullparticipationinthesociety.Prejudiceanddiscriminationarepartofourhistory,however,thisprejudicialtreatmentofdifferentgroupsisnowheremoreunjustthanwithblackAmericans.

Blackshaddistinctdisadvantages.Forthemostpart,theycametothe"landofopportunity"asslavesandtheywerenotfreetokeeptheirheritageandculturaltraditions.UnlikemostEuropeanimmigrants,blacksdidnothavetheprotectionofasupportgroup;sometimesslave-ownersseparatedmembersofthesamefamily.Theycouldnotmixeasilywiththeestablishedsocietyeitherbecauseoftheirskincolor.ItwasdifficultforthemtoadapttotheAmericanculture.Evenaftertheybecamefreepeople,theystillexperienceddiscriminationinemployment,housing,education,andeveninpublicfacilities,suchasrestroom.

Prejudiceanddiscrimination______.

A.weregone

B.havebeenexistingintheAmericansociety

C.don'texcludenewimmigrantsfromparticipationinthesociety

D.aremainlycausedbytheslavery

48.【S6】

49.

Whichofthefollowingstatementsistrue?

A.Therearejustoldandpoorpeopleleftinthecities.

B.Themovementtothesuburbsbeginstodecline.

C.Downtownareasmustdieinthefuture.

D.Suburbsaresuretoreplacecities.

50.SectionB

Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.

Africanelephantshavebeenslaughteredatalarmingrateoverthepastdecade,largelybecausetheyaretheprimarysourceoftheworld'sivory.Theirpopulationhasbeendwindledfrom1.3millionin1979tojust625,000today,andtherateofkillinghasbeenacceleratinginrecentyearsbecausemanyoftheolder,biggertuskedanimalshavealreadybeendestroyed."Thepoachersnowmustkilltimesasmanyelephantstogetthesamequantityofivory,"explainedCurtisBohlen,Seniorvice-presidentoftheWorldWildlifeFund.

Thoughitsrecordontheenvironmenthasbeenspottysofar,thegovernmentlastweektooktheleadinamajorconservationissuebyimposingabanonivoryimportsintotheUS.Themovecamejustfourdaysafteraconsortiumofconservationgroups,includingtheWorldWildlifeFundandWildlifeConservationInternational,calledforthatkindofaction,anditmadetheUSthefirstnationtoforbidimportsofbothrawandfinishedivory.Theban,saysBohlen,sendsaveryclearmessagetotheivorypoachersthatthegameisover.

InthepastAfricannationshaveresistedanivoryban,butincreasinglytheyrealisedthatthedecimationoftheelephantherdsposesaseriousthreattotheirtouristbusiness.LastmonthTanzaniaandseveralotherMricancountriescalledforanamendmenttothe102nationConventiononInternationalTradeinEndangeredSpeciesthatwouldmaketheivorytradeillegalworldwide.TheamendmentisexpectedtobeapprovedatanOctobermeetinginGenevaandtogointoeffectnextJanuary.Butbetweennowandthen,conversationistscontend,poachersmaygoonarampage,killingelephantswholesale,sonationsshouldunilaterallyforbidimportsrightaway.TheUSgovernmentbroughtthatargument,andbyweek'sendthetwelvenationEuropeanCommunityhadfollowedwithitsownban.

Whichofthefollowingisthebesttitleforthepassage?

A.AfricanElephantsandtheIvoryTrades.

B.ABidtoSavetheElephants.

C.ThePoachers.

D.ElephantsinDanger.

51.

【C6】______

52.SectionB

Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.

Ithasbeenknownsinceancienttimesthatcertainplantsregularlyopentheirleavesindaytimeandclosethematnight.Itwasassumedthisperiodicchangewastriggeredbythealternatingsunlightanddarkness.Itwasthendiscoveredthatsuchleavessticktotheirdailyroutineevenwhenkeptinconstantdarkness.

Whatisacircadianrhythm?Manybiologicalprocessesfollowa24-hourschedule.Thesecyclesarecalledcircadianrhythms.Theseinnaterhythmsaregovernedbysophisticatedchemicalmechanismswhichcanbedescribedasbiologicalclocks.Suchrhythmsareimportantforhumanstoo!Wesleepthroughmostofthehoursofdarknessandawakethroughmostofthehoursofdaylight.Pulserateandbloodpressurerisesharplyonawakening.Bodytemperatureincreasesduringthedayanddecreasesduringthenight.Thesecretion(分泌)ofvarioushormones(激素)thatcontrollife'sprocessesrisesandfallstoacircadianrhythm.

Howdoesthisrelatetohealth?Circadianrhythmsareimportantforoptimalfunctioningofthemanyprocessesvitaltohealth.Thisismosteffectivelyillustratedw