2022-2023年寧夏回族自治區(qū)銀川市大學英語6級大學英語六級

2022-2023年寧夏回族自治區(qū)銀川市大學英語6級大學英語六級學校:________班級:________姓名:________考號:________

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

2.

Beingassertiveisnotenoughtosolvethebullyproblem.

A.YB.NC.NG

3.

ThenewerSATIISubjectTestsaresupposedtoassessstudents'______.

A.abilitytoentercollege

B.knowledgeofcollegestudy

C.levelofversatility

D.knowledgeofasubject

4.

ForfatchildrenwithtypeⅡdiabetes,theymayhavethesymptomofhighbloodpressure.

A.YB.NC.NG

5.

Themeaningofmoversandshakersis_______.

6.

Iftwospeechvarietiesarenotmutuallyintelligible,thenthespeechvarietiesareconsideredtobedifferentlanguages.

A.YB.NC.NG

7.

Howistheflowrateofahydroelectricpowerstationquantified?

A.Thedepthofthewater.

B.Volumeovertime.

C.Speedovertime.

D.Thewidthofthewater.

8.

Typicallythinpeopleusuallyfinishwhatisontheplatewhenthey______.

9.

Peoplewillexperiencenegativityintheworkplaceswhentheylose______.

10.Amongdevelopedcountries,______spendsthegreatestshareofGDPonthepublicbroadcasting.

A.USgovernment

B.Britishgovernment

C.Germangovernment

D.Frenchgovernment

11.AccordingtoEdOverton,theeffectsofoilonthesurfaceoftheocean______.

A.willbeveryobvious

B.areacompletemystery

C.arenotmeasurable

D.remainmodestatpresent

12.BirdBrains

CrackingWalnuts

Thescene:atrafficlightcrossingonauniversitycampusinJapan.Carrioncrowsandhumanslineuppatiently,waitingforthetraffictohalt.Whenthelightschange,thebirdshopinfrontofthecarsandplacewalnuts,whichtheypickedfromtheadjoiningtrees,ontheroad.Afterthelightsturngreenagain,thebirdsflyawayandvehiclesdriveoverthenuts,crackingthemopen.Finally,whenit'stimetocrossagain,thecrowsjointhepedestriansandpickuptheirmeal.

Biologistsalreadyknewthecorvinefamily--itincludescrows,ravens,rooks,magpiesandjackdaws--tobeamongthesmartestofallbirds.Butthisremarkablepieceofbehavior.wouldseemtobeaparticularlyacutedemonstrationofbirdintelligence.Researchersbelievetheyprobablynoticedcarsdrivingovernutsfallenfromawalnuttreeoverhangingaroad.Thecrowsalreadyknewaboutdroppingclamsfromaheightontheseashoretobreakthemopen,butfoundthisdidnotworkforwalnutsbecauseoftheirsoftgreenoutershell.

Otherbirdsdothis,althoughnotwithquitethesameprecision.IntheDardiaMountainsofGreece,eaglescanbeseencarryingtortoisesuptoagreatheightanddroppingthemontorocksbelow.

DoBirdsHaveIntelligence?

Scientistshavearguedfordecadesoverwhetherwildcreatures,includingbirds,showgenuineintelligence.Somestillconsiderthehumanmindtobeunique,withanimalscapableofonlythesimplestmentalprocesses.Butanewgenerationofscientistsbelievesthatcreatures,includingbirds,cansolveproblemsbyinsightandevenlearnbyexample,ashumanchildrendo.Birdscaneventalkinameaningfulway.

GoodMemory

Somebirdsshowquiteastonishingpowersofrecall.AtypeofNorthAmericancrowmayhavetheanimalworld'skeenestmemory.Itcollectsupto30,000pineseedsoverthreeweeksinNovember,andthencarefullyburiesthemforsafekeepingacrossoveranareaof200squaremiles.Overthenexteightmonths,itsucceedsinretrievingover90percentofthem,evenwhentheyarecoveredinfeetofsnow.

MakingandUsingTools

OnthePacificislandofNewCaledonia,thecrowsdemonstrateatool-making,andtoolusingcapabilitycomparabletoPaleolithicman's.DrGavinHunt,aNewZealandbiologist,spentthreeyearsobservingthebirds.Hefoundthattheyusedtwodifferentformsofhooked"tool"topullgrubsfromdeepwithintreetrunks.Otherbirdsandsomeprimateshavebeenseentouseobjectstoforage.Butwhatisunusualhereisthatthecrowsalsomaketheirowntools.Usingtheirbeaksasscissorsandsnippers,theyfashionhooksfromtwigs,andmakebarbed,serratedrakesorcombsfromstiffleatheryleaves.Andtheydon'tthrowthetoolsawayafteroneuse--theycarrythemfromoneforagingplacetoanother.

Scientistsarestilldebatingwhatthisbehavior.means.Man'suseoftoolsisconsideredaprimeindicationofhisintelligence,isthisaskillacquiredbychance?Didthecrowsacquiretoolmakingskillsbytrialanderrorratherthanplanning?Or,initsabilitytoadaptandexploitanenormousrangeofresourcesandhabitats,isthecrowclosertohumansthananyothercreature?

DrHuntsaidthisofhisresearch:"Therearemanyintriguingquestionsthatremaintobeansweredaboutcrows'toolbehavior.Mostimportantwouldbewhetherornottheymostlylearnorgeneticallyinherittheknow-howtomakeandusetools.Withoutknowingthatitisdifficulttosayanythingabouttheirintelligence,althoughonecouldguessthatthesecrowshavethecapabilitytobeascleverascrowsingeneral."

Thewoodpeckerfinchisanotherconsummatetoolmaker;Itwillsnapoffatwig,trimittosizeanduseittopryinsectsoutofbark.Incaptivity,acactusfinchlearnthowtodothisbywatc

A.kindnessofpeople

B.harmoniouslivingconditions

C.ecologicalstability

D.birdintelligence

13.

YoucanapplyfordivorceatacountycourtintheUK,buttodothis,couplesmusthavebeenmarriedforatleastayear.

A.YB.NC.NG

14.

LackofpreventionstrategiesandtreatmentprogramsmakesthedevelopingcountriesthelargestinthenumberofHIVinfection.

A.YB.NC.NG

15.

Subbaramansuggestedthatforeigninvestorsshouldattachimportanceoffivepointsthoughthereisalmostnotany______forsuccess.

16.

Theexampleofkeepingadailygratitudejournalshowsthat______isveryimportant.

17.

TheprivatejetthatcarriedSalopekhomestoppedinFrance,Ireland,andCanadafor______.

18.

Usuallytubewormsliveinhigh-temperatureenvironment.

A.YB.NC.NG

19.

"Wordborrowing"meanstakingwordsfromonelanguageandincorporatingthemintothevocabularyofanotherlanguage.

A.YB.NC.NG

20.

Oncewethoughtofpollutionasmeaningsimply______.

二、3.ListeningComprehension(20題)21.【B2】

22.

【B2】

23.(22)

A.Employeeswouldperform.thebestiftheyhavegoodcommunicationwithemployers.

B.Careersuccessdependsonhowanemployeedevelopshisjobskills.

C.Companiesholdsocialeventsonlytohelpemployeebuildgoodprivaterelationships.

D.Miscommunicationshallaffectthegrowthofacompany.

24.

【B8】

25.(16)

A.Shecan'taffordthetimeforthetrip.

B.Shewillmanagetoleavethismonth.

C.Shehastochangethetimeforthetrip.

D.Shehasn'tdecidedwheretogonextmonth.

26.SectionB

Directions:Inthissection,youwillhear3shortpassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA,B,CandD.

聽力原文：Manystudentstrytostudythewholenightanddonotsleepbeforeanexam.Twoseparatestudiesshowthismaydomoreharmthangood.Thestudiesfoundthatagoodnight'ssleepmayimprovememory.ThefindingsofbothstudiesappearedinthepublicationNature.

ScientistsattheUniversityofChicagodidoneofthem.Theytrainedstudentstolistentounclearspeechproducedbyamachine.Somestudentslistenedtotherecordingafteranightofsleep.Othersweretestedtwelvehoursafterthetraining,withnosleep.Guesswhat?Thestudentswhosleptunderstoodtherecordingbetter.

ProfessorDanielMargoliashsayssleephasatleasttwoeffectsonlearning.Oneistostrengthenmemoriesandprotectthemagainstinterference.Thesecondistorecovermemoriesthathavebeenlost.

TheotherstudytookplaceatHarvardMedicalSchoolinMassachusetts.Scientiststrainedone-hundredpeopletorepeattwoseriesoffingermovements.Theactwassimilartoplayingnotesonapiano.Peoplewhosleptbetweenlearningthefirstseriesandtheseconddidthebest.Thestudysuggestedthatmemoriesarerecordedinthreesteps.Scientistssaytheprocessissimilartothewayacomputerstoresinformation.Inhumans,theysay,thesecondsteprequiressleep.

(27)

A.Manystudentstrytostudythewholenightbeforeanexam.

B.Sleepmayimprovememory.

C.Examsmayharmmemory.

D.Sleepcanimprovelisteningability.

27.【B4】

28.SectionC

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

聽力原文：Opinionsvarywidelyconcerningworkplaceromances.Someorganizations,ontheassumptionthatromanticrelationshipsarebasicallyharmfultothesuccessoftheworkplace,haveexplicitrules(36)prohibitingsuchrelationships.

Onthepositiveside,theworkenvironmentseemsaperfectplacetomeetapotentialromanticpartner.Afterall,by(37)virtueofthefactthatyou'reworkinginthesameoffice,you'reprobablybothinterestedinthesamefield,havesimilartrainingand(38)ambitions,andwillspend(39)considerabletimetogether—allfactorsthat(40)fosterthedevelopmentofasuccessfulinterpersonalrelationship.

Similarly,officeromancescanleadtogreaterwork(41)satisfaction.Iftherelationshipisagoodoneandonethatis(42)mutuallysatisfying,theindividualsarelikelytodevelopempathyforeachotherandactinwaysthataresupportive,(43)cooperative,andfriendly.

However,evenwhentherelationshipisagoodoneforthetwoindividuals,itmaynotbegoodforotherworkers.(44)Seeingthelovingcoupleeverydayineverywaymaygenerateofficegossipthatmayprovedestructive.

Whentheromancegoesbadorwhenit'sone-sided,thereareevenmoredisadvantages.Oneobviousproblemisthat(45)itcanbestressfulfortheformerpartnerstoseeeachotherregularlyandperhapstoworktogether.Otherworkersmayfeeltheyhavetotakesides,beingsupportiveofonepartnerandcriticaloftheother.Thiscaneasilycausefrictionthroughouttheorganization.(46)Anotherandperhapsmoreseriousissueisthepotentialforchargesofsexualharassment,especiallyiftheromanceisbetweenasupervisorandaworker.

Opinionsvarywidelyconcerningworkplaceromance.Someorganizations,ontheassumptionthatromanticrelationshipsarebasicallyharmfultothesuccessoftheworkplace,haveexplicitrules【36】suchrelationships.

Onthepositiveside,theworkenvironmentseemsaperfectplacetomeetapotentialromanticpartner.Afterall,by【37】ofthefactthatyou'reworkinginthesameoffice,you'reprobablybothinterestedinthesamefield,havesimilartrainingand【38】,andwillspend【39】timetogether-allfactorsthat【40】thedevelopmentofasuccessfulinterpersonalrelationship.

Similarly,officeromancescanleadtogreaterwork【41】Iftherelationshipisagoodoneandonethatis【42】satisfying,theindividualsarelikelytodevelopempathyforeachotherandactinwaysthataresupportive,【43】,andfriendly.

However,evenwhentherelationshipisagoodoneforthetwoindividuals,itmaynotbegoodforotherworkers.【44】.

Whentheromancegoesbadorwhenit'sone-sided,thereareevenmoredisadvantages.Oneobviousproblemisthat【45】.Otherworkersmayfeeltheyhavetotakesides,beingsupportiveofonepartnerandcriticaloftheother.Thiscaneasilycausefrictionthroughouttheorganization.【46】especiallyiftheromanceisbetweenasupervisorandaworker.

(37)

29.聽力原文：W:Howdoyouliketheoldblackandwhitemoviesoftheforties,andfiftiescomparedwiththemodemones?

M:Fortheirtime,themoviesofthefortiesandfiftieswereexcellent.Buttrytocomparethemwithtoday'stechnology,andyou'llfindthereisn'tanythingtocompare.It'ssosuperiortoday.

Q:Howweretheblackandwhitemoviesofthefortiesandfifties?

(17)

A.Theyarebetterthanthemodemmovies.

B.Thereismoretechnologyinthem.

C.Thetechnologyinthemcannotbecomparedwiththatofmodernones.

D.Theyareexcellenttousnow.

30.(21)

A.Tomentionotherspaceprograms.

B.Toincorporatepicturesintothepaper.

C.Tokeepworkingontheoriginalsubject.

D.TosearchforinformationontheInternet.

31.聽力原文：W:Yourroomisamess.Whenisthelasttimeyoutidiedyourroom?

M:ItwaswhenLindacameover.ShehasbeensohelpfulthatIsimplycan'tdowithouther.

Q:Whatdoesthemanmean?

(16)

A.He'sbeentoobusytocleanhisroom.

B.Cleaningisthelastthinghewantstodo.

C.Hehasn'tcleanedhisroomsinceLindavisitedhim.

D.Lindaistheonlypersonwhoevercomestoseehim.

32.(34)

A.Residentialarea.

B.Shoppingcenters.

C.Parkinglots.

D.Shoppingcentersorparkinglotsnearstadiumsorgymnasiums.

33.【B8】

34.

【B9】

35.聽力原文：F:I'mgoingtothesnackbarforacupofcoffee.Wouldyoulikemetobringyoubacksomething?

M:Notfromthesnackbar.Butcouldyoupickupapaperforme?

Q:Whatdoesthemanmean?

(19)

A.Hedislikesfoodfromthesnackbar.

B.Hedoesn'tneedanything.

C.Heasksthewomantobuyanewspaperforhim.

D.Hewillgowiththewomanandhandinhistermpaper.

36.

【B3】

37.聽力原文：M:Hi,Karen.YourroommatetoldmethatIcouldfindyouhere.Whatareyoudoinghere?:

W:WhatdoesitlooklikeIamdoing?

M:Well,itlookslikeyouarewatchingtelevision.Butwehaveamathmid-termtomorrow,soIthoughtyou'dbestudyingforitandmaybeIcanstudywithyou.

W:Oh,we'll,Iwasjusttakingabreak.ThismathstuffgivesmeaheadacheifIworkonittoolong.

M:Iknowwhatyoumean.I'vebeenworkingonitforthreehoursthroughitalready.Iencounterwiththesampleproblems.Ijustdon'tgetsomeofthem.

W:ButIcan'tbelieveyouarecomingtome.ImeanyoudoknowwhatIgotonthelasttest,don'tyou?

M:Yeah,Iknow.Youtoldme.Ijustthoughttwoheadsmightbebetterthanone.

W:Eah,that'sniceidea.But...youknow,IwishIknewthatpersoninourclasswhogotahundredonthelasttest.Shedidn'tmissaquestion.Umm...wasitElizabeth?

M:Ohyeah,Elizabeth!Sheisafriendofmine.She'dbeabighelprightnow.Whydon'tIgiveheracall?

W:What!Atthishour?It'salreadytenthirty.Idon'twannaimposeonher.

M:Yeah,Iguessyouareright.Butyouknowwhat;sheowesmeabigfavor.Let'satleastgiveheracallandseewhatshesays.Maybegoingoversomeoftheproblemswithuswouldhelpherreviewthematerial.

W:It'sworthatry.

(20)

A.TheTVprogram.

B.TheappearanceofElizabeth.

C.Theman'sheadache.

D.Themid-termexamination.

38.SectionB

Directions:Inthissection,youwillhear3shortpassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA,B,CandD.

聽力原文：Wehumanshavefoundcountlessmysteriesoftheuniversewithwhichtooccupyourmindsoverthecenturies.Wenotonlyaskquestionsaboutwhatsomethingisbutwealsowanttoknowwhyitis.Ancientpeopleinventedelaboratemythologicalexplanationstoaccountforthemysteriousthingstheysaw.Boththeskywithitsheavenlybodiesandseeminglynever-endingvastnessandtheseaswiththeirgreatdepthsandpowerwere,andstillare,capableoffillingpeoplewithfeelingsoffearandwonder.

Asancienthumanslookedattheskyabovethem,onesightthatintriguedthemmostwastheMilkyWay.They,ofcourse,didn'tknowthatthestrange,broad,luminousbandoflightacrosstheskyisinrealitycomposedofcountlessstarsandplanetslocatedsofarfromtheEarththattheycannotbeenseenindividuallybythenakedeyes.TotheancientChineseitappearedasaluminousriver,whichtheyreferredtoastheRiverofHeavenortheSilverStream.EventhoughtodayweknowwhattheMilkyWayis,itremainsequallymysteriousinmanywaysbecauseitissoremotefromus.ItisnowonderthatforthoseindividualswhobelieveinUFOs,itseemsalikelyplacefromwhichtheycouldhavearisen.Afterall,weknowsolittleaboutheavenlybodies.

ThepoweroftheoceanisAwesome.Wehearoftidalwavesthatcrashontoland,destroyingeverythingintheirpath;wereadaccountsoflostshipsoverthecenturies.Now,inthe21stcenturyasweflyacrossthePacific,wecan'thelpbutfeelabitlonelyandconcernedaswethinkofthatvastbodyofwaterbelowus.

(27)

A.Theydidn'tnoticethem.

B.Theygavemythologicalexplanations.

C.Theyignoredthem.

D.Theychosetoavoidseeingthem.

39.

【B10】

40.(29)

A.Theirvoices.

B.Theirhands.

C.Theirfeelings.

D.Bothaandb.

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

【C5】

42.AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabundantlyclearhowcomplexithasbecometoworkoutinternationalagreementsrelatingtotheenvironmentbecauseofeconomicconcernsuniquetoeachcountry.Itisnolongerenoughtotrytoforbidcertainactivitiesortoreduceemissionsofcertainsubstances.Theglobalchallengesoftheinterlinkbetweentheenvironmentanddevelopmentincreasinglybringustothecoreoftheeconomiclifeofstates.Duringthelate1980swewereable,throughinternationalagreements,tomakedeepcutsinemissionsharmfultotheozonelayer.Thesereductionsweremadepossiblebecausesubstitutionshadbeenfoundformanyoftheharmfulchemicalsand,moreimportant,becausetheharmfulsubstancescouldbereplacedwithoutnegativeeffectsonemploymentandtheeconomiesofstates.

Althoughthethreatofglobalwarminghasbeenknowntotheworldfordecadesandallcountriesandleadersagreethatweneedtodealwiththeproblem,wealsoknowthattheeffectsofmeasures,especiallyharshmeasurestakeninsomecountries,wouldbenullified(無效的)ifothercountriesdonotcontroltheiremissions.WhereastheUNteamonclimatechangehasfoundthattheemissionsofcarbondioxidewouldhavetobecutgloballyby60%tostabilizethecontentofCO2intheatmosphere,thispathisnotfeasibleforseveralreasons.Suchdeepcutswouldcauseabreakdownoftheworldeconomy.Importantandpopulouslow-incomeormedium-incomecountriesarenotyetwillingtoundertakelegalcommitmentsabouttheirenergyuses.Inaddition,thestateofworldtechnologywouldnotyetpermitustomakesuchabigleap.

Wemust,however,findasolutiontothethreatofglobalwarmingearlyinthe21stcentury.Suchacommitmentwouldrequireadegreeofsharedvisionandcommonresponsibilitiesnewtohumanity.Successliesintheforceofimaginations,inimaginingwhatwouldhappenifwefailtoact.Althoughmanylivingincoldregionswouldwelcometheglobal-warmingeffectofawarmersummer,fewwouldcheerthearrivalofthesubsequenttropicaldiseases,especiallywheretherehadbeennone.

ItcanbeinferredthatsincetheKyotoconference,wefind______.

A.globalwarmingproblemiscloselyrelatedtoeconomydevelopment

B.globalwarminghasproducedvariouseconomyproblemsaroundtheworld

C.differentcountrieshavedifferentviewsontheeffectofglobalwarming

D.globalwarminghasgreatlyaffectedtheworldwideeconomydevelopment

43.

Thestatement"diet-drugrevolutionisfacingabacklash"issupportedbythefollowingfactsexcel______.

A.inFlorida,patientsaretoldtoturnawayfromtheuseoffen-phenwithinamonth

B.somestateshavelimitedorforbiddentheprescriptionsofthedietpills

C.dietchainsandsomeoftheHMOshaveremovedtheirsupportforthepills

D.SheldonLevine,aNewJerseydoctor,toutedoneofthepillsonTVandinhisbook

44.Itcanbeinferredfromthispassagethat______.

A.TheWorldDigitalLibrarywillconsistof1,200documentsandtheirexplanations.

B.TheU.S.NationalDigitalLibraryProgramgainsincreasingpopularityamongpeople.

C.ChildrenaroundtheworldcanhaveaccesstotheWorldDigitalLibraryanytime.

D.TheWorldDigitalLibrarywillhaveserversincountriesaroundtheworld.

45.

【C8】

46.

Whowastherepresentativeduringthesecondperiod?

A.Aristotle.B.Aeschylus.C.Shakespeare.D.Chekhov.

47."FamineThreatensMillions!"Headlinessuchasthisareunhappilyfrequent.Thepeopleofvastareasoftheworld'ssurfaceareill-fedeveninprosperousyears.Oneseasonofwidespreadagriculturalfailurecanplungemillionsintodisastrousfamine.

Meanwhileworldpopulationisspiralingupward,andthemostrapidincreasesarebeingmadeinjustthoseregionswheregettingpropernourishmentisthegreatestproblem.Todaywhilethepeopleofthe"have"countriesarewellfedandarepilingupsurplusesoffoodstuffs,inthe"have-not"countriesmoremillionsthaneveraregoinghungryeveryday.

Inrecentyears,however,therehasbeenagreat"awakeningofthecommonman."Peoplewhopreviouslyhadlittlecontactwiththeoutsideworldhavebeguntorubshoulderswithpeoplefromother,better-developedcountries.

Theyhavebeguntorealize,asanexpertputsit,that"povertyisnotaGod-givenstateoflife."Moreover,the"have"nationsoftheworldhavebegantorealizethatnosinglenation,howeverprosperous,canexistforitselfalone.Theentireworldissoboundtogethertodaybytiesoftradeandtravelthatpovertyandfamineanywherethreatentherichestofthenationsalongwiththepoorest.Asaresult,muchthoughtandskilledeffortarebeingdevotedtoimprovingfoodsuppliesintheunderfedareas.

Manyoftheworld'sfoodproblemsarequiteevidentandcanbeattackeddirectly.Somefarmersarestillusingtoolsandmethodsdatingbacktoprehistorictimes,youmaysay.Bringtheirmethodsuptodatewithmoderntoolsandmachines,teachthemtofertilizeandirrigatetheirsoil,providethemwithgoodseedandgoodanimalstoraise,andtheysoonwillbeproducingplentyforthemselves.

Thisapproachisbeingfollowed;theagronomistinGreece,thefarmexpertinAfghanistan,andmanyothersaredoingalltheycantoimproveagriculturaltechniquesincountlesswidelyscatteredfarmcommunities.Butbehindeveryproblemthatcanbesolvedbymachineryorapacketofseedorasackoffertilizerloomsahumanproblemhavingtodowithwhathaslongbeenknownassociallag.

Wheneveryoutrytorevolutionizethewaysofapeople,yourunintoamaze(錯綜復雜的曲徑)ofintricate,interlockedproblems.Thebehavior.ofhumanbeingsiscomplexandcannotbecontrolledassimpleasthebehavior.ofwhitemiceinalaboratory.Whatseemsanobvioussolutionmayprovedifficult,evenimpossible,tocarryout.

Thesolutiontotheworld'sfoodproblemsdependson______.

A.modernmethodsoffarming

B.providingfamilyfarms

C.solvingproblemsbesidesgrowingfood

D.thehelpof"have"countries

48.

Inthelastparagraph,"Ithinkmyfather'swordsfoundtheirwayupnorthtoMcNeil"impliesthat______.

A.myfather'swordsfinallyreachedMcNeil

B.McNeildecidedtodosomethingfortheneedypeople

C.myfatherdecidedtoassistusinopeningmoreclinicsinthenorth

D.McNeilcommunitywasbadlyinneedoffreehealthcareprograms

49.WhatdidClotfelter'sstudyrevealabouttheextracurricularactivities?

A.Mostofthemwereexclusivetowhiteandrichstudentsonly.

B.Theycontributedtotheformingofinterracialfriendships.

C.Theydidn'thelpeliminateracialsegregationasexpected.

D.TheyseemedtobeneglectedbyAmericanschooldistricts.

50.

Accordingtotheauthor,______.

A.thepersonalitiesofathletesproduceviolentconfrontations

B.athletesshouldnothavetoacceptunnecessaryphysicalabuse

C.athletessalariesarealreadytoohigh

D.athletesneedhighersalariestocompensatefortheirinjuries

51.SectionA

Directions:Inthissection,thereisashortpassagewith5questionsorincompletestatements.Readthepassagecarefully.Thenanswerthequestionsorcompletethestatementsinthefewestpossiblewords.

TwocitiesthatlayattheedgeoftheMediterraneanmorethan1.200yearsago,HerakleionandEasternCanopus,disappearedsuddenly,swallowedbythesea.Now.aninternationalteamofscientistsmayhavefiguredoutthemysteryofwhyithappened.

Theresearchershaveconcludedthatthetwocitiescollapsedwhenthelandtheywerebuiltonsuddenlyliquefied(液化).

Untilrecently,theonlyevidencethattheyexistedcamefromGreekmythologyandthewritingsofancienthistorians.Then,duringexpeditionsin1999and2000,ateamofFrenchmarinearchaeologistsheadedbyFranckGoddiofoundtheruins—almostcompletelyintact—buriedontheseaflooroftheAbuQirBayinEgypt.

Sincethen,therehasbeenmuchspeculation(猜測)aboutwhythecitiesdisappearedsosuddenly.Earthquakes,subsistence(生存)conditions,andariseinsealevelhaveallbeensuggestedaspossibilities.

"Therearenowrittendocumentsonhow,when,orwhythesetwocitieswentdown,"saidJeanDanielStanley,ageoarchaeologistwiththeSmithsonianInstitutioninWashington,D.C.

StanleyandhiscolleaguesattheInstituteEuropeend'ArcheologieSous-MarineinParis(theEuropeanInstituteofMarineArchaeology)arguethatamajorfloodoftheNileinthemiddleoftheeighthcenturyA.D.wastoblame.Theflood,theysay,triggeredthesinkingofEasternCanopusandHerakleionbyturningthegroundbeneaththecitiesintoliquefiedmud.

Thecollapsewassuddenandcatastrophic,saidStanley."Wecantell,"hesaid,"becauseinbothplaceswe'vefoundgoldandjewelry,which,iftherehadbeentime,peoplewouldhavetakenwiththemwhenfleeing."

HerakleionandEastCanopusoncestoodatthemouthofthenow-extinctCanopicbranchoftheNile.BuiltsometimebetweentheseventhandsixthcenturiesB.C.,asthedaysoftheEgyptianPharaohswerecomingtoanend,thecitiesflourishedasgatewaystoEgypt.

HerakleionwasaportofentrytoEgyptandgrewwealthybycollectingtaxesongoodsbeingshippedupriver.

Frozenintimebelowthewatersweremanytemplesandstatuesofgodsandgoddesses,alsoattestingtothecities'roleasdestinationsforreligiouspilgrims.

Untiltheunderseadiscovery,historiansknewaboutthecitiesonlythroughmythand