2021-2022年安徽省阜阳市公共英语五级(笔试)真题一卷(含答案)

2021-2022年安徽省阜阳市公共英语五级(笔试)真题一卷(含答案)学校:________班级:________姓名:________考号:________

一、1.ListeningComprehension(15题)1.Dr.WilsonsuggeststhatWangshouldextendhisstayattheuniversity.

A.TrueB.Fasle

2.WhyareAmericanstudentsusuallyunderpressureofwork?

A.Becausetheiracademicperformancewillaffecttheirfuturecareerinthefuture.

B.Becausetheyareheavilyinvolvedinstudentaffairs.

C.Becausetheyhavetoobservetheuniversitydiscipline.

D.Becausetheywanttorunforpositionsofauthority.

3.听力原文：Todayit'smyturntogivetheweeklyoralpresentation,andthetopicthatProfessorMayhadassignedtomeis"thelifeofthepoet,EmilyDickinson".ComparedwithWaltWhitmanwhomwediscussedlastweek,IfoundEmilyDickinsonstrikinglydifferent.SheseemedinfacttobethecompleteoppositeofWhitmaninherlifeandinherwork.Iwouldliketosharebrieflywiththeclasssomeoftheessentialfactsofherbiography.EmilyDickinsonwasbornin1830inAmherst,Mass,barelyadecadeafterWhitman.Inherearly20'sforreasonswhichstillremainamysteryshebegantowithdrawfromherordinarycontactwiththeworld.Fortheremaining30yearsofherlifeshewasseldomseenoutsideherhome.InthisrespectshewasquiteunlikeWhitmanwholovedthegreatoutdoors.EmilyDickinsonspenthersolitarydayscorrespondingwithherfriendsandwritinghundredsofremarkablepoems,notably"Iheardaflybuzz"andthepoemwehavereadfortoday"I'mnobody".Althoughsheshowednoneofherpoemstoherfamilyandsentsomeofherletterstofriends,onlyfourwerepublishedinherlifetime.Mostofthem,almost1,200poemswerediscoveredinherroomaftershediedin1886.attheageof56.Thesepoemshaveestablishedherasamajorpoet,andseveralmodemcriticsconsiderherthegreatestwomanpoetintheEnglishlanguage.Eh,that'saboutallIhave.Isthereanyquestion?Ifnot,weshouldprobablybegintalkingaboutDickinson's"I'mnobody",thepoemProfessorMayassignedforthisweek'sclassdiscussion.

Whoisthespeaker?

A.Apoet.B.Ateacher.C.Astudent.D.Anartist.

4.Chainsdon'tproducetheirowncoursebookmaterial.

A.TrueB.Fasle

5.MrMillerenjoysdoingthingswithhisownhands.

A.RightB.Wrong

6.Wangintendstostudyhowcomputerisusedforlanguagetranslation.

A.RightB.Wrong

7.ThejoboftheBoardofDirectorsistoadministratethecompany．

A.RightB.Wrong

8.听力原文：TheUniedStatesofAmericaisafoundingmemberoftheInternationalFootballAssociation.In1913theAmericanFootballAssociationwasfoundedwithover7,000registeredclubsand1.4millionplayers.

InhistorytheU.S.teamenteredthefinalsoftheWorldCupfourtimesandgaineddiethirdplaceinthefirstWorldCup.Butsincethe4thWorldCupUSAhaspaidmoreattentiontotheOlympicGamesandAmericanfootball.

TheheadcoachoftheU.S.teamnowisfromYugoslavia,the57-year-oldcoachmovedtoMexicotwenty-oneyearsagoandlaterhebecametheheadcoachofMexico'sNationalTeam.Afterthatheleftforanevensmallercountry,CostaRica.Beforelong,hebecamewell-knownallovertheworld.

OnMarch7th,1991,hefacedthebiggestchallengeinallhislifetoleadtheU.S.team.TheAmericanFootballAssociationspentayearbuildingafootballfieldinCaliforniaforhim.Andintwoyears'timehisteamdefeatedtheteamsofIreland,EnglandandPortugal.

ThustheU.S.teamenteredwitheaseintothefinalsoftheWorldCup.Andasthehost,itenteredautomaticallyintothefirstcirclein1994.

WhenwastheAmericanFootballAssociationfounded?

A.In1913.B.In1930.C.In1914.D.In1917.

9.PeopleinRussiaarealsofamousfortheirlongevity.

A.TrueB.Fasle

10.What'stheCivilRightsMovementfor?

11.Behavioralmanagementisveryusefulbutisnot______likescientificmanagement.

12.PartA

Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.

听力原文：W:Comein,please.

M:Goodmorning,Dr.Wilson.

W:Goodmorning,Wang.Hownicetomeetyouagain.Takeaseat...whydon'tyou,please.Whendidyougettotheuniversity?

M:Iarrivedyesterday.

W:Well...areyoulivinginthecollege?

M:No,IamwithanEnglishfamily...actually...becauseIwanttoimprovemyspeaking.

W:Oh,fine.Right,didyoutakealanguageproficiencytestbeforeyoucame?

M:Yes.Uhh...myOverallBandis6,but...unfortunatelymyspeakingscoreisonly5.

W:OK,youknow,hereinthisuniversity,youhavetotakeourownEnglishtestbeforeyouattendanylectures.So,firstofall,whatwe'vegottodois,wehavetomakeanarrangementforthetestdate.Umm...willtomorrowbeallrightforyou?

M:Yeah,Ihavetimetomorrowmorning.

W:Good,then.Tomorrowatten.Idon'tthinkthetestwillbeanyproblemforyou.Now,let'smakesureyoumakegooduseofyourtimehere.Let'sputitlikethis.Whatexactlydoyouwanttoaccomplishinthenext12months?

M:I'minterestedincomputerlanguagetranslation,Imean,fromEnglishtoChineseandChinesetoEnglish.I'lltry,ifpossible,toproducesoftwareoradevicewhichcanserveasaninterpreter.

W:Yes,couldyoubeabitmorespecificabout...er...thedevice?

M:Forinstance,whenyoutalktothedeviceinEnglishitwilltranslateyourwordsintoChineseandviceversa.

W:Uhuh...doyoumeanit'llbeascompetentas...er...ahumaninterpreter?

M:Yes...well,I'llletitdealwithgeneralsituations,atleast.

W:Fascinating...andhowbigwillthedeviceitselfbe,doyouthink?

M:Thesizeofacigarettepack,Ithink.Sopeoplecanputitintheirpocket.

W:Really?Well,thatcouldbeaPh.Dproject.Tellmewhatyouhavedonesofar.

M:Inmyfouryearsofundergraduatestudy,Istudiedelectronics,advancedmathematics,hardwaredesigning,somecomputerlanguagesandprogramwriting.

W:Yes,buthaveyoudoneanypracticaljobs?Imean,haveyouwrittenanyprogramsforpracticaluse?

M:IhadbeeninvolvedinaprojectforCADinashipyard.

W:Computeraideddesign.Thatwasprobablyagoodexperience,but,unfortunately,itmaynothelpyourpresentprojectmuch.AreyoufamiliarwiththeC-language?

M:No.

W:Uhuh...thephoneticprocessingsystem,doyouknowhowsuchasystemworks?

M:Whatdoyoumeanby"phoneticprocessingsystem"?

W:Well,youknow,Englishisspokenbydifferentpeoplewithdifferentaccents.YourEnglishaccentisdifferentfrommine,andofcoursemineisnotthesameasmycolleagues'.SoasIseeit,yourdevicewouldhavetobeabletorecogniseandunderstanddifferentaccents.

M:Oh,Isee.IthinkIcanlearntheC-languageandthephoneticprocessingsystemhere.

W:Well,that'sprobablytrue,butyou'vegotonlytwelvemonthsandyouwantadegree,don'tyou?M:Yes.

W:OK,sothere'retwowaysofstudyingforadegreehere.Youeithertakesixcourses,passtheirexamsandhaveyourdissertationacceptedortheotherwayisyoudosomeresearchworkandsubmityourprojectreport.M:IthinkI'lltakethesecondway,

W:Fine,butareyousureyoucanfinishyourprojectintwelvemonths?

M:Idon'tknow,butIcanworktwelvehoursperdayandsevendaysperweek.

W:Well,I'dsuggestyouspendsometimeinourlibrary,tryingtofindoutwhatotherstudentshavedonebeforeandperhapsreconsideryourownproject,tosomeextent.Youmightnarrowyourresearcharea,concentratingonsolvingoneortwomajorproblems.And,it'dbeagoodideatotalktoyourcolleaguesinthelab,first.Anyway,I'msurewecanworkoutsomethinggood.ShallIseeyouagaininthreedays'time?

M:A11rig

A.TrueB.Fasle

13.Ifaconsumerwantsaquicksettlementoftheproblem,whomisitbettertocomplainto?

A.Ashopassistant.

B.Thestoremanager.

C.Themanufacturer.

D.Apublicorganization.

14.Inwhatpartoftheworldispotatoespeciallyafavoritefood?

15.MostpeopleinthemountainsofEduadordrinkalotofcoffeeandalcohol,buttheystilllivelong.

A.TrueB.Fasle

二、2.UseofEnglish(10题)16.(46)

17.

【C5】

18.

【C7】

19.Impatiencecharacterizesyoungintellectualworkers.Theywanttomaketheirmark【C1】______.Soit'simportanttoget【C2】______totheminachallengingmannertheidea【C3】______bigachievementsrarelycomeeasilyandquickly.Pointoutthatthelittlesuccessesareessential.Showthatthey【C4】______turnbecomethefoundationon【C5】______reputationsarebuiltandfromwhichmoreimportanttaskscanbeaccomplished.

Avarietyofjobassignments,includingjoborprojectrotation,alsokeepajob【C6】______becomingdull.Whereasit'snaturalforsomeindividualstowanttomoveaheadimmediatelytomoredifficultassignments,【C7】______properguidancetheycancontinuetolearnandtogainversatilitybyworkingonanumberofjobsthatareessentially【C8】______thesamecomplexity.Thiswaytheygainbreadth,ifnotdepth.

Probablythegreatestoffensetoguard【C9】______whendealingwithyoungerspecialistsistorejectideasoutofhand.Youmustlisten--andlistenobjectively--totheirsuggestions.Avoid【C10】______overcritical.Youwanttonurtureaninquiringmindwithafreshapproach.You'llfrustrateitquicklyifyoureverttoooften【C11】______"We'vetriedthatbeforeanditwon't【C12】______here."

Onesurewaytodisenchant【C13】______collegegraduatesisflagrantlymisusingtheirtalents.Expectthemtodosomeroutinework,ofcourse.Butdon'tmaketheir【C14】______workjustonelongseriesoferrands.Thisincludessuchbreak-inassignments【C15】______performingroutinecalculations,diggingup【C16】______material,【C17】______operatingreproductionequipment.Onelargemanufacturingcompanyrecentlyinterviewedanumberof【C18】______engineerswhohadleftthem.Thecompanyfoundthattheoverwhelmingcomplaintwasthatthecompanynotonlydidnotofferworkthat【C19】______challengingbutalsoexpected【C20】______toolittlefromtheminthewayofperformance.

【C1】

20.(41)

21.

【C9】

22.(39)

23.

【C17】

24.Pollutionisa"dirty"word.Topollutemeanstocontaminate--topsoilorsomethingbyintroducingimpuritieswhichmake【C1】______unfitoruncleantouse.Pollutioncomesinmanyforms.Weseeit,smellit,【C2】______it,drinkit,andstumblethroughit.Weliterallylivedinandbreathepollution,and【C3】______surprisingly,itisbeginningto【C4】______ourhealth,ourhappiness,andourcivilization.

Oncewethoughtofpollution【C5】______meaningsimplythesmog—thechoking,stinging,dirty【C6】______thathoversovercities.Butairpollution,whileitis【C7】______themostdangerous,isonlyonetypeofcontaminationamongseveral【C8】______attackthemostbasiclifefunctions.

Throughtheuncontrolleduseofinsecticides,manhaspollutedtheland,【C9】______thewildlife.By【C10】______sewageandchemicalsintoriversandlakes,wehavecontaminatedour【C11】______water.Wearepollutingtheoceans,too,kiltingthefishand【C12】______deprivingourselves【C13】______aninvaluablefoodsupply.

Partoftheproblemisourexploding【C14】______.Moreandmorepeopleareproducingmorewastes.Butthisproblemisintensifiedbyour"throw-away"technology.EachyearAmericans【C15】______of7millionautos,20milliontonsofwastepaper,25millionpoundsoftoothpastetubesand48millioncans.Wethrowawaygumwrappers,newspapers,andpaperplates.Itisnolongerwiseto【C16】______anything.Todayalmosteverythingisdisposable.【C17】______ofrepairingatoasteroraradio,itiseasierandcheapertobuyanotheroneanddiscardtheold,even【C18】______95percentofitspartsmaystillbefunctioning.Babydiapers,whichusedtobemadeofreusablecloth,arenowpaperthrow-aways.Soonwewillwearclothingmadeof【C19】______:"Wearitonceandthrowitaway"willbethesloganofthefashionableconsciousness.

Whereisthisalltoend?Areweturningtheworldintoagiganticdump,oristherehopethatwecansolvethepollutionproblem?【C20】______,solutionsareinsight.Afewofthemarepositivelyingenious.

【C1】

25.

【C6】

三、3.ReadingComprehension(15题)26.

______canpresentthevisitorthesignificanceofHeavenKitchen?

27.

Whichofthefollowingistrueaccordingtothetext?

A.TheHartspreferapublicuniversitytoaprivateone.

B.Itismucheasiertopaythetuitionatpresent.

C.Allstudentscangettheaidpackage.

D.Traditionalscholarshipsarestillattractivetosomefamilies.

28.(78)

29.Theideaofafishbeingabletoproduceelectricitystrongenoughtolightlampbulbs—oreventorunasmallelectricmotor—isalmostunbelievable,butseveralkindsoffishareabletodothis.Evenmorestrangely,thiscuriouspowerhasbeenacquiredindifferentwaysbyfishbelongingtoverydifferentfamilies.

Perhapsthemostknownaretheelectricrays,ortorpedoes,ofwhichseveralkindsliveinwarmseas.Theypossessoneachsideofthehead,behindtheeyes,alargeorganconsistingofanumberofhexagonal-shapedcellsratherlikeahoneycomb.Thecellsarefilledwithajelly-likesubstance,andcontainaseriesofflatelectricplates.Oneside,thenegativeside,ofeachplate,issuppliedwithveryfinenerves,connectedwithamainnervecomingfromaspecialpartofthebrain.Currentgetsthroughfromtheupper,positivesideoftheorgandownwardtothenegative,lowerside.Generallyitisnecessarytotouchthefishintwoplaces,completingthecircuit,inordertoreceiveashock.

Thestrengthofthisshockdependsonthesizeoffish,butnewly-bornonesonlyabout5centimetersacrosscanbemadetolightthebulbofapocketflashlightforafewmoments,whileafullygrowntorpedogivesashockcapableofknockingamandown,and,ifsuitablewiresareconnected,willoperateasmallelectricmotorforseveralminutes.

Anotherfamousexampleistheelectriceel.Thisfishgivesanevenmorepowerfulshock.Thesystemisdifferentfromthatofthetorpedointhattheelectricplatesrunlongitudinallyandaresuppliedwithnervesfromthespinalcord.Consequently,thecurrentpassesalongthefishfromheadtotail.Theelectricorgansofthesefisharereallyalteredmusclesandlikeallmusclesareapttotire,sotheyarenotabletogenerateelectricityforverylong.PeopleinsomepartsofSouthAmericawhovaluetheelectriceelasfood,takeadvantageofthisfactbydrivinghorsesintothewateragainstwhichthefishdischargetheirelectricity.Thehorsesarelessaffectedthanamanwouldbe,andwhentheelectriceelshaveexhaustedthemselves,theycanbecaughtwithoutdanger.

TheelectriccatfishoftheNileandofotherAfricanfreshwatershasadifferentsystemagainbywhichcurrentpassesoverthewholebodyfromthetailtothehead.Theshockgivenbythisarrangementisnotsostrongastheothertwo,butisnonethelessunpleasant.Theelectriccatfishisaslow,lazyfish,fondofgloomyplacesandgrowstoabout1metrelong;itiseatenbytheArabsinsomeareas.

Thepowerofproducingelectricitymayservethesefishbothfordefenceandattack.Ifalargeenemyattacks,theshockwilldriveitaway;butitappearsthatthecatfishandtheelectriceelusetheircurrentmostoftenagainstsmallerfish,stunningthemsothattheycaneasilybeoverpowered.

Whichofthefollowingcanproducethestrongestshock?

A.Theelectriceel.

B.Theelectriccatfish.

C.Thenewly-bornelectrictorpedoes.

D.Thefully-grownelectricray.

30.

Theauthorgaveanexampleinthethirdparagraphinorderto______．

A.emphasizetheneedtoplaceastrongervalueonnationalcooperation

B.explainwhytheAmericanideahasbeenbasedonindividualfreedom

C.illustratethefactthatAmericanswillnotsacrificetheirpersonalinterestforthegoodoftheentirecountry

D.supporttheideathatAmericansneedsthespiritofnationalcooperationtoachieveimportantnationalobjectivesinthe21stcentury

31.

Whichofthefollowingstatementsisnottrue?

A.Electricfishcomefromdifferentfamilies.

B.Onecangetashockbytouchingtheelectricraysintwoplaces.

C.Theelectricplatesintheraysareconnectedwiththespinalcord.

D.Theelectriccatfishisedible.

32.

______mayaffectthedownstreamwaterqualityandhaveanimpactonplantlife?

33.

Thefederalgovernmentgetsmostoftheirincomefrom______．

A.propertytaxB.incometaxC.salestaxD.estatetax

34.PartC

Directions:Answerquestions71-80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,BorCandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

Answerquestions71～80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,B,CorDandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

Whichschool...

isnotforboys?71.______

haswonthenationalaward?72.______

ownsmostfull-timefacultymemberswhoholdaPh.D.orterminaldegreeintheirfield?73.______

hasagoodreputationforwhattheydoforsomespecialpersons?74.______

hasalimitintheageforthosewhowillliveoncampus?75.______

putemphasisondevelopingstudents'verbaltalents?76.______

doesnotofferanyscholarships?77.______

providesstudentswithvocationaltraining?78.______

combinesliberalartswithprofessionalstudiesandpromotesservicetoothers?79.______

appliesadvanceddevicestoteaching?80.______

AEllesmereCollegeisoneofthefastest-growingindependentschoolsinthecountryoverthepasttwoyears,withpupils'numberrisingbyalmost20%.Thegrowthhasledtoa$1millioninvestmentprogramin1999andthebuildingofanewlowerschoolforboysandgirlsagedninetothirteen.Thenewlowerschoolwillbethelargestsinglebuildingprojectatthecollegesinceitsfoundationin1884.

Intheseniorschool,two-thirdsofthepupilsareboarders,andboardingisavailablefromtheageof11.Thesixthform.isstrongwithover120pupils;thereisanexceptionallywide-rangeofA-levelsubjectsonofferandtheCollegehaspioneeredtheuseofvideoconferencingtechnologyasawayofimprovingitscurriculum.MicrosoftOfficequailficationsarealsoavailableinthesixthform.

TheCollegeissetinextensivegroundsinthebeautifulNorthShropshireLakeDistrict.Facilitiesareexcellenfandvarious,andincludemanysportsfields,sixall-weathertenniscourts,indoorandoutdoorshootingranges,anine-holegolfcourseandapurpose-builttheater.TheCollegesailingclubhasboatswithinwalkingdistanceonWhitemere.

ThemajorityofthedaypupilsattheCollegeenjoytheCollegebusservicewhichcoversaverywidearea.BoardingthroughouttheSchoolhasbenefitedfromarecentmultimillionpoundrefurbishmentwhichhasdoneawaywithdormitoriesinfavorofmodem,comfortablerooms,thelargestsleepingsix,butmostsleepingtwoorone.

Academicstandardsarehighforaschoolwithabroadentryrange.Manyscholarshipsareawardedacrossarangeoftalents,buttheemphasisofanEllesmereeducationisfirmlyonbreadthwitheachpupilachievinghisorherfullpotential,whateverthatmaybe.Recentpupilsuccessesrangefrominternationalhonorsinshooting,fencingandcanoeingtoarecentleaver'selection--afteronlyoneyearasanundergraduate--toanExhibitioninchemistryatJesusCollege,Oxford.TheCollegehasanationalreputationforthequalityofitsdyslexiaprovision.

BThechoiceoftherightschoolforyoursonordaughterisimportant.Forover100yearsEdgehillCollegehasproudlypreparedindependently-mindedyoungpeopletotaketheirplaceinaworldofrapidlyadvancingtechnology.

Thefoundationsofasoundeducationarelaiddownearlyinlife.Edgehilldoesthiswithinthefriendlywallsofitsprepschool.Learningthroughenjoymentbeginsattheageofthreeandcontinuestothepointwherepupilscanproceedsmoothlyandconfidentlyintoseniorschool.

Entrytotheprepschoolis

35.(70)

36.

Whichofthefollowingmightbetheresultfromtheuseofefficienttechnologyincorporations?

A.Thequantityofproductswillbeconsiderablyincreased.

B.Thecostofcomputerswillbedecreased.

C.Theperdocumentcostofinformationprocessingwillbereduced.

D.Thenewestinformationwillbeeasiertoobtain.

37.PartA

Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.

Opinionpollsarenowbeginningtoshowthat，whoeveristoblameandwhateverhappensfromnowon，highunemploymentisprobablyheretostay．Thismeansweshallhavetomakewaysofsharingtheavailableemploymentmorewidely．

Butweneedtogofurther．Wemustasksomeprimaryquestionsaboutthefutureofwork．Wouldwecontinuetotreatemploymentasthenorm?Wouldwenotratherencouragemanyotherwaysforself-respectingpeopletowork?Shouldwenotcreateconditionsinwhichmanyofuscanworkforourselves，ratherthanforanemployer?Shouldwenotaimtorevivethehouseholdandtheneighborhood，aswellasthefactoryandtheoffice，ascentersofproductionandwork?

Theindustrialagehasbeentheonlyperiodofhumanhistoryinwhichmostpeople'sworkhastakentheform.ofjobs．Theindustrialagemaynowbecomingtoanend，andsomeofthechangesinworkpatternswhichitbroughtmayhavetobereversed．Thisseemsadauntingthought．But，infact，itcouldprovidetheprospectofabetterfutureforwork．Universalemployment，asitshistoryshows，hasnotmeanteconomicfreedom．

Employmentbecamewidespreadwhentheenclosuresofthe17thand18thcenturiesmademanypeopledependentonpaidworkbydeprivingthemoftheuseoftheland，andthusofthemeanstoprovidealivingforthemselves．Thenthefactorysystemdestroyedthecottageindustriesandremovedworkfrompeople'shomes．Later，astransportationimproved，firstbyrailandthenbyroad，peoplecommutedlongerdistancestotheirplacesofemploymentuntil，eventually，manypeople'sworklostallconnectionwiththeirhomelivesandtheplaceinwhichtheylived．

Meanwhile，employmentputwomenatadisadvantage．Inpre-industrialtime，menandwomenhadsharedtheproductiveworkofthehouseholdandvillagecommunity．Nowitbecamecustomaryforthehusbandtogoouttopaidemployment，leavingtheunpaidworkofthehomeandfamilytohiswife．Taxandbenefitregulationsstillassumethisnormtodayandrestrictmoreflexiblesharingofworkrolesbetweenthesexes．

Itwasnotonlywomenwhoseworkstatussuffered．Asemploymentbecamethedominantform.ofwork，youngpeopleandoldpeoplewereexcluded—aproblemnow，asmoreteenagersbecomefrustratedatschoolandmoreretiredpeoplewanttoliveactivelives．

Allthismaynowhavetochange．Thetimehascertainlycometoswitchsomeeffortandresourcesawayfromtheidealistgoalofcreatingjobsforall，totheurgentpracticaltaskofhelpingmanypeopletomanagewithoutfulltimejobs．

Researchcarriedoutintherecentopinionpollsshowsthat______．

A.availableemploymentshouldberestrictedtoasmallpercentageofthepopulation

B.newjobsmustbecreatedinordertorectifyhighunemploymentfigures

C.availableemploymentmustbemorewidelydistributedamongtheunemployed

D.thenowadayhighunemploymentfiguresareatruthoflife

38.Theideaofafishbeingabletoproduceelectricitystrongenoughtolightlampbulbs-oreventorunasmallelectricmotor—isalmostunbelievable,butseveralkindsoffishareabletodothis.Evenmorestrangely,thiscuriouspowerhasbeenacquiredindifferentwaysbyfishbelongingtoverydifferentfamilies.

Perhapsthemostknownaretheelectricrays,ortorpedoes,ofwhichseveralkindsliveinwarmseas.Theypossessoneachsideofthehead,behindtheeyes,alargeorganconsistingofanumberofhexagonal-shapedcellsratherlikeahoneycomb.Theceilsarefilledwithajelly-likesubstance,andcontainaseriesofflatelectricplates.Oneside,thenegativeside,ofeachplate,issuppliedwithveryfinenerves,connectedwithamainnervecomingfromaspecialpartofthebrain.Currentgetsthroughfromtheupper,positivesideoftheorgandownwardtothenegative,lowerside.Generallyitisnecessarytotouchthefishintwoplaces,completingthecircuit,inordertoreceiveashock.

Thestrengthofthisshockdependsonthesizeoffish,butnewly-bornonesonlyabout5centimetersacrosscanbemadetolightthebulbofapocketflashlightforafewmoments,whileafullygrowntorpedogivesashockcapableofknockingamandown,and,ifsuitablewiresareconnected,willoperateasmallelectricmotorforseveralminutes.

Anotherfamousexampleistheelectriceel.Thisfishgivesanevenmorepowerfulshock.Thesystemisdifferentfromthatofthetorpedointhattheelectricplatesrunlongitudinallyandaresuppliedwithnervesfromthespinalcord.Consequently,thecurrentpassesalongthefishfromheadtotail.Theelectricorgansofthesefisharereallyalteredmusclesandlikeallmusclesareapttotire,sotheyarenotabletogenerateelectricityforverylong.PeopleinsomepartsofSouthAmericawhovaluetheelectriceelasfood,takeadvantageofthisfactbydrivinghorsesintothewateragainstwhichthefishdischargetheirelectricity.Thehorsesarelessaffectedthanamanwouldbe,andwhentheelectriceelshaveexhaustedthemselves,theycanbecaughtwithoutdanger.

TheelectriccatfishoftheNileandofotherAfricanfreshwatershasadifferentsystemagainbywhichcurrentpassesoverthewholebodyfromthetailtothehead.Theshockgivenbythisarrangementisnotsostrongastheothertwo,butisnonethelessunpleasant.Theelectriccatfishisaslow,lazyfish,fondofgloomyplacesandgrowstoabout1metrelong;itiseatenbytheArabsinsomeareas.

Thepowerofproducingelectricitymayservethesefishbothfordefenceandattack.Ifalargeenemyattacks,theshockwilldriveitaway;butitappearsthatthecatfishandtheelectriceelusetheircurrentmostoftenagainstsmallerfish,stunningthemsothattheycaneasilybeoverpowered.

Whichofthefollowingcanproducethestrongestshock?

A.Theelectriceel.

B.Theelectriccatfish.

C.Thenewly-bornelectrictorpedoes.

D.Thefully-grownelectricray.

39.(74)

40.(77)

四、阅读理解(5题)41.

第

40

题

hasalimitintheageforthosewhowillliveoncampus?__________

42.

第

40

题

5.__________

43.

第

35

题

Whichcanbethebesttitleforthepassage?

44.

第

50

题

hasitshandbookcriticise