2022-2023年广东省湛江市大学英语6级大学英语六级重点汇总（含答案）

2022-2023年广东省湛江市大学英语6级大学英语六级重点汇总（含答案）学校:________班级:________姓名:________考号:________

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

Acopyrightprotectstheexpressionofanideathrough______thatisoriginaltotheauthor.

2.Theauthofeels______abouthumanity'sfinalvictoryinthecentury-oldbattleagainstback-pain.

3.WhatdidTimYoungsuggestdotoemployeesembarrassingco-workersbygivingtoomuchpersonalinformation?

A.Sackingthemonthespotfordoingso.

B.Forbiddingsensitivetopicsintheoffice.

C.Tryingtoredirecttheirattentiontowork.

D.Limitingtheirtimespentwithco-workers.

4.Oildegradationoccurringinthedeepseaismuch______comparedwiththatonthesurface.

5.UnderdevelopedPeople

TheIndianslivingonthehighplainsoftheAndesMountains,inSouthAmerica,haveabackgroundrichinhistorybutrichinlittleelse.ThesesevenmillionpeoplefromthegreatoldIndiannationsliveinalandoffewtrees,poorsoil,cuttingwindsandbitingcold.Theirfarmsdonotgiveenoughfoodtosupportthem.Theirchildrenfromtheageofthreeorfourmustworkinthefields.Thedeathrateoftheirbabiesisamongthehighestintheworld,theirstandardsofeducationamongthelowest.Theyliveatheightsoftenorfifteenthousandfeet,whereeventheairlacksthethingsnecessaryforlife.

TheneedsoftheseIndians,scatteredacrossthreecountries--Ecuador,PeruandBolivia--aregreat.Theirproblemsaredifficultandtheirdiseasesaredeeplyrootedinanold-fashionedwayoflife.Probablynosingleprogramofhelpcangreatlybettertheircondition.Healthprogramsarenogoodwithoutfarmprograms,andfarmprogramsfailwheretherehavebeennoprogramsofeducation.

FiveinternationalorganizationshavecombinedeffortstoseektheanswerstotheproblemsoftheunfortunatedescendantsoftheIncaIndians.TheyareworkingwiththegovernmentsofPeru,BoliviaandEcuadoronwhattheycalltheAndeanMission.Sixareashavebeenformed,oneeachinEcuadorandPeru,fourinBolivia.Heremethodsaretestedtoattackpooreducation,poorfood,poorlivingconditionsanddiseaseallatonce.

Wepassedfieldsoflowcornandthinwheat.Wholevillageswereatworkplantingpotatoes.Themenformedalineandwalkedslowlybackward,beatingthesoilwithsticks.Thewomen,onhandsandknees,followedthemen,breakingthehardearthwiththeirhands.Theirredandorangeskirtsflashedbrightlyinthesun.Thescenewasbeautiful,buttheland,seedsandcropswereallpoor.

Uponarrivingatavillage,wewenttovisittheschoolforcarpenters.Itwasinanoldbuildingwherethirtyboyswereattendingclasses.Thereweretwoclassroomscontainingcompletesetsoftools.Isawmoretoolstherethaninanycarpenter'sshopinLatinAmerica.Mostoftheboyswerecuttingboardsforpractice.Theyworkedsteadilyanddidn'tevenlookupwhenweentered.

Theteacherremarkedthatthegreatestproblematthemomentwasfindingwood,asalmostnotreesgrowonahighplain.Someoneremarkedthatitwouldnottakelongfortheschooltoproducetoomanycarpentersinanareawithouttrees,wheremostofthebuildingswereofstoneormud.Thewoodbroughtfromthejunglewastoocostlyformostofthepeople.Theanswerwasthattheoriginalpurposeoftheschoolwastotraincarpentersandmechanicstogotootherpartsofthecountry.Theywouldworkwherethegovernmentisdevelopingnewvillagesattheedgeofthejungle.

Acrossfromthecarpentry-roomtherewasamachineforproducingelectricpower.Withittheboyswouldbetaughttheirfirstlessonsinelectricity.Otherboysstudiedcarrepairing.

Intheyardagroupofboyssurroundedalargetractor.Theteacherwasshowingthemhowtooperateit.Noonewassurehowmanyothertractorstherewereinthearea.Guessesrangedfromtwototen.Iftheschoolturnedoutmoreboystohandlethemthanthefarmscoulduse,therest,itwashoped,wouldseekalivinginthelowervillageswheremorepeoplelived.

Thenextday,againstthecuttingwindsoftheBolivianmountains,weweregoingtoavillagethatistheoldestofthefourBolivianprojectsoftheAndeanmission.Behindus,acrossthevalley,rainfellfromtheblackcloudsbeyondthesnowymountain-tops.Thewindandrainbeatagainstthecaraswetraveledacrosstheopenfieldstocometotheyardofanoldfarm.

Mytriphadbeenpannedatthelastminute.Sincethevillagehasnotelegraphtotelephoneservices,noo

A.NB.YC.NG

6.

Thefiverwatermakesup______oftheEarth'stotalfreshwater.

A.lessthan0.5percent

B.nearly0.05percent

C.aboutthree-quarters

D.aboutonefour-thousandth

7.

ThewithdrawingofVioxxonlyledtosomeaccusationsaboutsomeotherpainrelievers.

A.YB.NC.NG

8.

TheUnitedStatesspendmuchmoremoneyonprogramstopreventdiseasesthanon______.

9.PartⅡReadingComprehension(SkimmingandScanning)

Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfromthefourchoicesmarkedA,B,CandD.Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.

Thinkout-of-the-box

Britishphysician,author,inventor,andconsultantEdwarddeBonohashadamajorimpactonthewaywethinkandparticularlyinthefieldofcreativity.Hecoinedthephrase"lateralthinking"(水平思考)whichinvolvesapproachingproblemsfromdiverse,unexpectedanglesandfromdifferentperspectives.Dr.deBonomeanttodifferentiatelateralthinking—inwhichyoupushthemindtomakesuddenturns-fromverticalthinking,whichislogicalandsequentialthinking.

Lateralthinkingcanbelearned,andDr.deBonohascreatedseveraltechniquestohelpyouapplylateralthinkingtoproblemsolvingandideageneration.Someofthesearethefollowing:thinkofasmanydifferentalternativesforsolvingaproblemasyoupossiblycan;challengeanyassumptionsyoumayhaveaboutyourproblem;andinsertrandomelementswhichwillencourageyoutolookattheproblemfromadifferentandunexpectedperspective.

Challengeyourassumptions

Assumptionsarementalshortcuts:weassumethatasituationwe'refacingislikeothersituationswe'veencounteredbefore,andthatwhatworkedthenwillworkonceagain.Infact,themoreexperiencedweareinaparticulararea,themorelikelyweareIobringlotsofbaggagetotheproblem,whichcaninhibitusfromfindingnovelandcreativesolutions.

Inordertochallengeyourassumptions,writedownallofthedominantideasthatapplytoaparticularsituationandthendeliberatelychallengethem.Listalloftheassumptionsthatyou'remakingandnexttoeachonewriteacounter-assumption—notnecessarilyitsnegation,butitsopposite.

Onceyoudroppreconceivednotionsyou'remorelikelytofindbettersolutions.Oneapproach—suggestedbyJurgenWolffonhisblogTimetoWriteistopretendthatyou'reaMartian(火星人)thathasjustlandedonearthandisseeingthingsonthisplanetforthefirsttime.Thiswouldputyouinapositionofquestioningeverything,seeingyourproblemorsituationwithcompletelyfresheyes,andtakingnothingforgranted.

introducerandomelements

Selectingarandomelementthathasabsolutelynoconnectiontotheproblemathandprovidesanunexpectedentrypointtotheproblemsothatyoucanfaceitfromauniqueangle.I'vementionedusingarandomwordasaninitialstimulusonthisblogbefore.DeBonoexplainsthatthebrainissogoodatmakingconnectionsthatitwillfindawaytoconnecttherandomwordtotheproblemathand,nomatterhowremotethewordmayseem.

Takeawordfromarandomwordgenerator—oropenthedictionarytoarandompageandselectaword—extractitsunderlyingprinciples,andthenapplythemtoyourproblem.Becarefulnottodiscardaspecificwordbecauseyousimplyconcludethatit'sofnouseandthengettinganotherwordinstead.Ifyoudothisyou'reprobablyjustlookingforawordthatwouldneatlyfittheproblemyou'retryingtosolve.Insteadofaword,youcanalsouseapictureastherandomelementorevenanobject.

Inaddition,therandomelementthatyouintroducecanbea"falserule".Basically,youtakearule,quote,ideaorsuggestionfromsomewhereelseandapplyittoyourownsituation.

Howdoesapplyingthe"falserule"toyourproblemmakeyouseeitdifferently?Whatnewelementsdoesitintroduce?Howdoesitshiftyourperc

A.Thedefinitionofcreativity.

B.TheachievementsofEdwarddeBono.

C.Theintroductionofthelateralthinkingtheory.

D.Thedifferencebetweenlateralthinkingandverticalthinking.

10.TheInterview

AttheDemobilizationCentre,aftertheusualroundofmedicalinspection,returnofserviceequipment,andissueofallowancesandcivilianclothing,Ihadbeeninterviewedbyanofficerwhosejobwastoadviseoncareers.OnlearningthatIhadasciencedegreeandvariedexperienceinengineeringtechnology,heexpressedtheopinionthatIwouldhavenodifficultyinfindingagoodcivilianjob.Industrywasreorganizingitselfforpost-warproductionandtherewasalreadyanurgentdemandforqualifiedtechnologists,especiallyinthefieldofelectronics,whichwasmyspecialinterest.Ihadbeenverymuchencouragedbythis,asIhadmadeapointofkeepingupwithnewtrendsanddevelopmentsbyborrowingbooksthroughtheCentralLibrarySystem,andbysubscribingtovarioustechnicaljournalsandmagazines,soIfeltquiteconfidentofmyabilitytoholddownagoodjob.HehadgivenmealetterofintroductiontotheHigherAppointmentsOfficeinTavistockSquare,London,andsuggestedthatIcallonthemassoonasIhadsettledmyselfin"digs"andhadenjoyedashortholiday...

Shortlyaftermyreturn,IvisitedtheAppointmentsOffice,whereIwasinterviewedbytwocourteous,impersonalmenwhoquestionedmecloselyonmyacademicbackground,servicecareerandexperienceinindustry.IexplainedthataftergraduatingIhadworkedfortwoyearsasaCommunicationEngineerfortheStandardOilCompanyattheirArubaRefinery,earningenoughtopayforpostgraduatestudyinEngland.AttheendoftheinterviewtheytoldmethatIwouldbenotifiedofanyvacanciessuitabletomyexperienceandqualifications.TwoweekslaterIreceivedaletterfromtheAppointmentsOffice,togetherwithalistofthreefirms,eachofwhichhadvacanciesforqualifiedCommunicationEngineers.Ipromptlywrotetoeachone,statingmyqualificationsandexperience,andsoonreceivedveryencouragingreplies,eachwithaninvitationtoaninterview.EverythingwasworkingverysmoothlyandIfeltontopoftheworld.

IwasnervousasIstoodinfrontoftheHeadOfficeinMayfair;thisfirmhadahighinternationalreputationandthethoughtofbeingassociatedwithitaddedtomyexcitement.Anyway,Ireasoned,thiswasthefirstoftheinterviews,andifIfailedheretherewerestilltwochancesremaining.Theuniformedattendantpolitelyopenedthelargedoorsforme,andasIapproachedthereceptionist'sdeskshesmiledquitepleasantly.

"Goodmorning."Herbrowswereraisedinpoliteenquiry.

"Goodmorning,"Ireplied,"MynameisBraithwaite.IamhereforaninterviewwithMr.Symonds."

Ihadtakenagreatdealofcarewithmyappearancethatmorning.Iwaswearingmybestsuitwiththefightshirtandtieandpockethandkerchief;myshoesweresmartlypolished,myteethwerewellbrushedandIwaswearingmybestsmile--allthishadpassedtheverycriticalinspectionofMr.andMrs.BelmontwithwhomIlived.ImightevensaythatIwasquiteproudofmyappearance.Yetthereceptionist'ssmilesuddenlydisappeared.Shereachedforalargediaryandconsulteditasiftoverifymystatement,thenshepickedupthetelephoneand,cuppingherhandaroundthemouthpieceasifforgreaterprivacy,spokerapidlyintoit,watchingmestealthilythewhile.

"Willyoucomethisway?"Shesetoffdownawidecorridor,herbackstraightandstiffwithadisapprovalwhichwasechoedinthetap-tapofherhighheels.

Attheendofthecorridorweenteredanautomaticlift;thegirlmaintainedasilenthostilityandavoidedlookingatme.Atthesecondfloorwesteppedoutintoapassageontowhichseveralroomsopened;pausingbrieflyoutsideoneofthemshesaid"Inthere,"andquicklyretreatedtothelift.Iknockedonthedoorandenteredaspaciousroomwherefourmenwereseatedatalargetable.

A.YB.NC.NG

11.

Thelivingstandardsofeverymemberofthesocietydependonhisorheremployers'abilityto______.

12.

Justlikefatigueandweakness,depressionisonesymptomof______.

13.

WhenSusanCoxwasadopted,shewasraisedintheAmericanwayhappily.

A.YB.NC.NG

14.

Theresultsofcensushavealwaysbeenthecompromiseofcertaingroupsofinterest.

A.YB.NC.NG

15.WhyPopMusicSoundsPerfect?

Ifyouhaven'tbeenlisteningtopopradiointhepastfewmonths,you'vemissedtheriseoftwoseeminglyopposingtrends.Inamediuminwhichmediocresinginghasneverbeenabartoentry,alotofpopvocalssuddenlysoundgreat.Betterthangreat:note-andpitch-perfect,asifthere'sbeenanunspokentighteningofstandardsatrecordlabelsoranevolutionaryleapinthedevelopmentofvocalcords.Attheotherextremeareafewhip-hopsingerswhoalsohittheirnotesbutwithaprecisionsoexaggeratedthatonfirstlisten,theirsongssoundcomicallyartificial,likeachorusof50srobotssingingMotown.

Theforcebehindbothtrendsisaningeniousplug-incalledAuto-Tune,adownloadablestudiotrickthatcantakeavocalandinstantlynudgeitontothepropernoteormoveittothecorrectpitch.It'slikePhotoshopforthehumanvoice.Auto-Tunedoesn'tmakeitpossibleforjustanyonetosinglikeapro,butusedasitscreatorintended,itcantransform.awaveringperformanceintosomethingtechnicallyflawless."Rightnow,ifyoulistentopop,everythingisinperfectpitch,perfecttimeandperfecttune,"saysproducerRickRubin."That'showubiquitousAuto-Tuneis."

Auto-Tune'sinventorisamannamedAndyHildebrand,whoworkedforyearsinterpretingseismicdatafortheoilindustry.Usingamathematicalformulacalledautocorrelation,Hildebrandwouldsendsoundwavesintothegroundandrecordtheirreflections,providinganaccuratemapofpotentialdrillsites.It'satechniquethatsavesoilcompanieslotsofmoneyandallowedHildebrandtoretireat40.Hewasdebatingthenextchapterofhislifeatadinnerpartywhenaguestchallengedhimtoinventaboxthatwouldallowhertosingintune.Afterhetinkeredwithautocorrelationforafewmonths,Auto-Tunewasborninlate1996.

Almostimmediately,studioengineersadopteditasatradesecrettofixflubbednotes,savingthemtheexpenseandhassleofhavingtoredosessions.ThefirsttimecommonearsheardAuto-Tunewasontheimmenselyirritating1998Cherhit"Believe."Inthefirstverse,whenChersings"Ican'tbreakthrough"asthoughshe'sstandingbehindanelectricfan,that'sAuto-Tune--butit'snotthewayHildebrandmeantittobeused.Theprogram'sretunespeed,whichadjuststhesinger'svoice,canbesetfromzeroto400."Ifyousetitto10,thatmeansthattheoutputpitchwillgethalfwaytothetargetpitchin10milliseconds,"saysHildebrand."Butifyouletthatparametergotozero,itfindsthenearestnoteandchangestheoutputpitchinstantaneously"--eliminatingthenaturaltransitionbetweennotesandmakingthesingersoundjumpyandautomat-ed."Ineverfiguredanyoneintheirrightmindwouldwanttodothat,"hesays.

LikeothertrendsspawnedbyCher,thecreativeabuseofAuto-Tunequicklywentoutoffashion,althoughitcontinuedtobeanindispensable,ifinaudible,partoftheengineer'stoolbox.Butin2003,T-Pain(FaheemNajm),alittle-knownrapperandsinger,accidentallystumbledontotheChereffectwhileAuto-Tuningsomeofhisvocals."Itjustworkedformyvoice,"saysT-PaininhisnaturalTallahasseedrawl."Andtherewasn'tanyoneelsedoingit."

Sincehis2005debutalbum,T-Painhassentadozenslightlyraunchy,mechanicallycheerysinglesintotheTop10.HecontributedtofournominatedsongsatGrammyAward2009,andhisinfluenceisstillspreading.WhenKanyeWestwaslookingforaneffecttomatchsomeheartbrokenlyrics,heflewT-PaintoHawaiitoseehowmanywaystheycouldtweakAuto-Tune.Diddygaveapercentageofhisupcomingalbum'sprofitstoT-Paininexchangeforsomelessons.EvenPrinceisrumoredtobeexperimentingwithAuto-Tuneonhisnewrecord."Iknow[Auto-Tune]betterthananyone,"saysT-Pain."AndevenI'mjustfiguring

A.Vocalcords.B.Hip-hopsingers.C.Motown.D.Auto-Tune.

16.

OneoftheresultsofthefrugalcultureinWal-Martisthat______.

A.storemanagersonlyhavetoworkhalf-day

B.employeesdon'tgethealthinsurance

C.hourlyworkersworkovertimewithpay

D.theheadquartersbuildingismodernized

17.

Adepressedpersonmightfeelhopeless,helplessandoverwhelmedifheisinclinedto______oflife.

18."Areyoustillbeatingyourwife?"isinrealitytwoquestionsthatareusually______.

19.

Atsunamioccurswhenthereisashiftin______.

20.

Theexampleofkeepingadailygratitudejournalshowsthat______isveryimportant.

二、3.ListeningComprehension(20题)21.

【B2】

22.

【B9】

23.

【B8】

24.SectionB

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

听力原文：Notlongagoitwasassumedthatthedangersmanwouldmeetinspacewouldbeterrible,themainonesbeingradiationandthedangerofbeinghitbymeteors.Itisperhapsworthremembering'thatlessthantwocenturiesagothedangersoftraintravelseemedsimilarlyterrible.Amanwouldcertainlydie,itwasthought,ifcarriedalongataspeedofthirtykilometersperhour.

Therearetwosortsofradiationmanmustfearinspace.Thefirstisradiationfromthesun,andthisisparticularlydangerouswhenthesunisveryactiveandexplosionsareoccurringonitssurface.Thesecond,esfromtheso-canedVanAllenBelts.Therearetwoareasofradiationabout1500milesawayfromtheearth.Neitheroftheseformsofradiationareadangertousontheearth,sinceweareprotectedbyouratmosphere.Specifically,itisthatpartofouratmosphereknownastheozonospherewhichprotectsus.Thisisabeltofthechemicalozonebetween12and21milesfromtheground,whichabsorbsalltheradiation.

Onceoutsidetheatmosphere,however,manisnolongerprotected,andradiationcanbeharmfulinanumberofways.Adistinctionmustbedrawnbetweentheshort-andlong-termeffectsofradiation.Theformeraremerelyunpleasant,butjustbecauseanastronautreturningfromajourneyinspacedoesnotseemtohavebeengreatlyharmed,wecannotassumethatheissafe.Thelong-termeffectscanbeextremelyserious,evenleadingtodeath.

(27)

A.Radiationfromthesun.

B.RadiationfromtheVanAllenBelts.

C.Radiationfromthemeteors.

D.RadiationfromtheVanAllenBeltsandfromthemeteors.

25.听力原文：M:You'vebeenherethreeyears.Haveyouhadmuchofachancetotravel?

W:Notmuch.LastyearIplannedtogotoYellowStoneParkinDecember,butIhadtopostponethetrip.Thenafewmonthslater,Ifinallymadeitthere.

Q:WhendidthewomangotoYellowStonePark?

(19)

A.Threeyearsago.B.Thisyear.C.Lastyear.D.InDecember.

26.

【B4】

27.听力原文：GoingonlineisafavoriterecreationformillionsofAmericanchildren.TheInternetbothentertainsandeducateschildren,however,therearesomepossiblenegativeconsequencesforchildrenwhoaccesskid-basedwebsites.Advertisingonkid-basedwebsiteshasbecomebotharapidlygrowingmarketforconsumercompaniesandaconcernforparents.Withadickonanicon,childrencanlinktoadvertisersandbegrantedtremendousspendingpower.Childrenareanimportanttargetgroupforconsumercompanies.Childrenunderage12spent＄14billion,teenagersanother＄67billion,andtogethertheyinfluenced＄160billionoftheirparents'incomes.

ManycriticsquestiontheappropriatenessoftargetingchildreninInternetadvertisingandpresstorequirethatchildrenbetreatedasa"specialcase"byadvertisers.Becausechildrenlacktheanalyticalabilitiesandjudgmentofadults,theymaybeunabletoevaluatetheaccuracyofinformationtheyview,orunderstandthattheinformationtheyprovidetoadvertisersisreallyjustdatacollectedbyanadvertiser.

Inreturn,manyadvertisersarguethatweunderestimatethelevelsofmediaawarenessshownbychildren.Bytheageofsevenoreightmostchildrencanrecognizeanadvertisementandknowthatitspurposeistosellsomethingandareabletomakejudgmentsabouttheproductsshowninadvertisements.However,asmarketers,weshouldbeexplicitaboutourpurposewhenadvertisingtochildrenontheInternet.

(29)

A.Childrenareunabletoanalyzeandjudgeadvertisements.

B.Childrenareunabletogiveconsentsincetheyaretooyoung.

C.Childrenoftengiveoffinformationthatmaybedangeroustothem.

D.Childrenarenotreadytoevaluateadvertisementsorinformationrequests.

28.SectionC

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

TheUniversityLibraryisoneofthelargest【B1】______librariesinthecountry,witha【B2】______ofsometwomillionvolumes.Thereisanactivecollectionforallsubjectswhicharetaughtorresearchedat【B3】______levelintheUniversity.TheLibraryalso【B4】______asanationalresourcecenterincertainsubjectareas.

For【B5】______researchinthehumanities,andinthehistoryofthesocial,naturalandphysicalsciences,theUniversityLibraryhas【B6】______impressivespecialcollectionsof【B7】______andrareprimarymaterials,bothmanuscript.andprinted,which【B8】______scholarsfromallovertheworld.【B9】______.

TheUniversityLibraryishighlyautomated,andthebenefitsofthisforreadersareespeciallyevidentandamicrocomputerclusterforfreestudentused.

【B10】______.Theseincludereferenceandenquiryservices,individualandgrouptrainingintheeffectiveuseofinformationtechnologyandothersources,interlibraryloans,librarypublications,photocopyingandotherreprographicservices,andbindingandconservation.

【B11】______.Thereareseparatelibraries,administeredbytheMainLibrary,forfinearts.music,literatureandearlymodernstudies,education,law,chemicalengineering,electronicandclectricalengineering,socialsciences,andmedicineandlifesciences.

【B1】

29.SectionC

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

听力原文：鱼在水中运动的原理

Tous,theenvironmentinwhichfishdwelloftenseemscold,darkand(36)mysterious.Butthereareadvantagesto(37)liveinwater.And(38)they'yeplayedanimportantroleinmakingfishwhattheyare.Oneisthatwaterisn't(39)subjecttosuddentemperaturechanges.Theseforeitmakes(40)anexcellenthabitatforacold-bloodedanimal.Anotheradvantageisthewater'sabilitytoeasilysupportbodyweight.Protoplasmhas(41)approximatelythesamedensityaswater.Sofishinwaterarealmostweightless.Thisweightlessnessinturnmeanstwothings:1)Fishcangetalongwithalightweightandasimplebone(42)structure.And2)Limitationstoa(43)fish'ssizearepracticallyremoved.Yetthereisonebasicdifficultytoliveinwater--thefactthatitisincompressible.(44)Forafishtomovethroughwater,itmustactuallyshoveitaside.Mostcandothisbywigglingbackandforthinasnakelikemotion.Thefishpusheswaterasidebytheforwardmotionofitsheadandwithacurveofitsbodyanditsflexibletail.

(45)Nextthewaterflowsbackalongthefish'snarrowingside,closinginatthetailandhelpingthefishpropelitselfforward.Thefactthatwaterisincompressiblehasliterallyshapedthedevelopmentoffish.Afiatandangularshapecanbemovedthroughwateronlywithdifficulty.(46)Andforthisreason,fishhaveabasicshapethatisbeautifullyadaptedtodealwiththispeculiarity.

Tous,theenvironmentinwhichfishdwelloftenseemscold,darkand【B1】______.Butthereareadvantagesto【B2】______water.And【B3】______playedanimportantroleinmakingfishwhattheyare.Oneisthatwaterisn't【B4】______suddentemperaturechanges.Thereforeitmakes【B5】______habitatforacold-bloodedanimal.Anotheradvantageisthewater'sabilitytoeasilysupportbodyweight.Protoplasmhas【B6】______thesamedensityaswater.Sofishinwaterisalmostweightless.Thisweightlessnessinturnmeanstwothings:1)Fishcangetalongwithalightweightandasimplebone【B7】______.And2)Limitationstoa【B8】______sizearepracticallyremoved.Yetthereisonebasicdifficultytoliveinwaterinfactthatitisincompressible.【B9】_______________________Thefishpusheswaterasidebytheforwardmotionofitsheadandwithacurveofitsbodyanditsflexibletail.

【B10】______________________.Thefactthatwaterisincompressiblehasliterallyshapedthedevelopmentoffish.Aflatandangularshapecanbemovedthroughwateronlywithdifficulty.【B11】______________________________.

【B1】

30.(21)

A.Stayandnegotiateormove.

B.Buyalaptoporaccepttheincrease.

C.Moveclosertotheschoolorthesubway.

D.Theyhavenochoicebuttomove.

31.(26)

A.Heansweredallherquestionscorrectly.

B.Hereceivedag