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2022-2023年四川省內(nèi)江市公共英語五級(筆試)真題一卷(含答案)學(xué)校:________班級:________姓名:________考號:________
一、1.ListeningComprehension(15題)1.Whatwillthespeakerdiscussfirst?
2.Whatcanthelistenersrelyonwhentheyarelistening?
3.Whocanbedescribedas"amantohavehisnoseputoutofjoint"?
A.Agayman.
B.Asickman.
C.Amanwhowantstosmellaflower.
D.Amanwhofeelshurtanddepressed.
4.Whyshouldamanagerstudybehavioralmanagement?
5.Meatsalsocontainwater.
A.RightB.Wrong
6.Canyougiveanexampleof"fillerwords"?
7.Thetalkismainlyabouttheimportanceof"feltimages".
A.TrueB.Fasle
8.WhatwaspotatousedforinEuropeatfirst?
9.WhichofthefollowingstatementsisNOTTRUE?
A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.
B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.
C.Habithelpsapersonadapttohisownenergycycle.
D.Childrenhaveenergycycles,too.
10.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
聽力原文:Thereareseveralplacesintheworldthatarefamousforpeoplewholiveforaverylongtime.Thesesplacesareusuallymountainousareas,farawayfrommoderncities.Doctors,scientistsandpublichealthexpertsoftentraveltotheseregionstosolveamysteriouslonghealthylife;theexpertshopetobringtothemodernworldthesecretsoflongevity.
HunzaishighintheHymalayanMountainsofAsia.There,manypeopleoveronehundredyearsofagearestillinphysicalhealth.Menofninetyarenewfathers,andwomenoffiftystillhavebabies.Whatarethereasonsforthisgoodhealth?ScientistsbelievethatthepeopleofHunzahavethesethreebenefits:first,physicalwork,usuallyinthefieldsorwithanimals;second,ahealthenvironmentwithcleanairandwater;andwhat'smore,asimplediethighinvitaminsandnutritionbutlowinfat,cholesterol,sugarandchemicals.
PeopleintheCaucasusMountaininRussiaarealsofamousfortheirlongevity.Inthisarea,thereareamazingexamplesofverylong-livedpeople.Birthrecordsarenotusuallyavailable,butawomancalledTsurbaprobablyliveduntilage160;amancalledShiraliprobablyliveduntil168.Hiswidowwas120yearsold.Ingeneral,peoplenotonlylivealongtime,buttheyalsolivewell.Theyarealmostneversick,andwhentheydie,theyhavenotonlytheirownteethbutalsoafullheadofhairandgoodeyesight.
Vilcabamba,Ecuador,isanotherareafamousforthelongevityofitshabit-ants.Thisregion—likeHunzaandtheCaucasus—isalsoinhighmountains,farawayfromcities.InVilcabamba,too,thereisverylittledisease.Onereasonforthegoodhealthofthepeoplemightbetheclean,beautifulenvironment:thetemperatureisabout70Fahrenheitallyearlong;thewindalwayscomesfromthesamedirection;andtheregionisrichinflowers,fruits,vegetablesandwildlife.
Insomeways,thedietsofthehabitantsinthethreeregionsarequitedifferent.Hunzukutseatmainlyrawvegetables,fruit(especiallyapricots),andchapattis—akindofpancake;theyeatmeatonlyafewtimesayear.TheCaucasiandietconsistsmainlyofmilk,cheese,vegetables,fruitandmeat;mostpeopletheredrinkthelocalredwinedaily.InVilcabamba,peopleeatasmallamountofmeateachweek,butthedietconsistslargelyofgrain,coins,beans,potatoesandfruit.
ExpertsfindonesurprisingfactinthemountainsofEcuador.Mostpeoplethere,eventheveryold,consumealotofcoffee,drinkalargeamountofalcohol,andsmokefortytosixtycigarettesdaily.
However,thedietsaresimilarintwogeneralways:first,thefruitsandvegetablesthattheinhabitantsofthethreeareaseatareallnatural;thatis,theycontainnochemicalsandsecond,thepeopleconsumefewercaloriesthanpeopledointheotherpartsoftheworld.AtypicalNorthAmericantakesinanaverageof3,300calorieseveryday;atypicalinhabitantofthesemountainousareasbetween1,700and2,000calories.
Inhabitantsinthethreeregionshavemoreincommoncalories,naturalfood,theirmountainsandtheirdistancefrommoderncities,becausethesepeopleliveincountrysideandaremostlyfarmers,theirlivesarephysicallyhard.Thus,theydonotneedtogotohealthclubsbecausetheygetalotofexerciseintheirdailywork.Inaddition,although,theirlivesarehard,thepeopledonotseemtohavetheworriesofcitypeople.Theirlivesarequiet.Consequently,someexpertsbelievethatphysicalexerciseandfreedomfromworrymightbethetwomostimportantsecretsoflongevity.
Somemoderncitiesareusuallyfamousforpeoplewholiveave
A.TrueB.Fasle
11.What'soneofthebestwaystohelpyouraudience?
12.Thesuccessofchainschoolsistosomeextentbecauseofthemarketingandadvertising.
A.TrueB.Fasle
13.PartB
Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.
聽力原文:M:Ireallydon'tknowwhattodothissummer.Ican'taffordtojustsitaround,andtheredon'tseemtobeanyjobsavailable.
W:Whydon'tyoutryhouse-sitting?LastsummermyfriendSallyhouse-satfortheGammonswhentheywentawayonvacation.Mrs.GammonhiredSallytostayintheirhousebecauseshedidn'twantitleftempty.
M:YoumeantheGammonspaidSallyjusttoliveintheirhouse?
W:Itwasn'teasy.Shehadtomowthelawnandwaterthehouseplants.AndwhenJodihouse-satforMr.Johnson,hehadtotakecareofhispets.
M:House-sittingsoundslikeagoodjob.Iguessit'salittlelikebaby-sitting—exceptyou'retakingcareofahouseinsteadofchildren.
W:Thestudentemploymentofficestillhasafewjobsposted.
M:DoIjusthavetofilloutanapplication?
W:SallyandJodihadtointerviewwiththehomeownersandprovidedthreereferenceseach.
M:Thatseemslikealotoftroubleforasummerjob.
W:Well,thehomeownerswantsomeguaranteesothattheycantrustthehouse-sitter.Youknow,theywanttomakesureyou'renotthetypewho'llthrowwildpartiesintheirhouse,ormoveagroupoffriendsinwithyou.
M:House-sitterswhodothatsortofthingprobablyaren'tpaidthen.
W:Usuallythey'repaidanywayjustbecausethehomeownersdon'twanttomakeafuss.Butifthehomeownerreportedit,thenthehouse-sitterwouldn'tbeabletogetanotherjob.Soifthehomeownerreportedit,thenthehouse-sitterwouldn'tbeabletogetanotherjob.Sowhydon'tyouapply?
M:Yeah.IthinkIwill.
Whichjobdoesthewomansuggesttotheman?
A.Baby-sitting.
B.House-cleaning.
C.House-sitting.
D.Mowingthelawn.
14.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
聽力原文: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
15.Whatistheconversationmainlyabout?
A.Givingupsmoking.
B.Keepingfit.
C.Doingexercises.
D.Eatingsweets.
二、2.UseofEnglish(10題)16.(33)
17.
【C17】
18.(35)
19.
【C16】
20.(39)
21.(48)
22.(34)
23.(36)
24.
【C9】
25.(32)
三、3.ReadingComprehension(15題)26.PartB
Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.
Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66~70,choosethemostsuitableparagraphfromthelistA~Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.
A.Therearedifferentformulasfortheexchangeofglancesdependingonwherethemeetingtakesplace.
B.Inthesubwayorbuswherelongridesinveryclosecircumstancesareanecessity,wemaybehardputtofindsomewayofnotstaring.Wesneakglances,butlookawaybeforeoureyescanlock.Ifwelookwithanunfocusedglancethatmissestheeyesandsettlesonthehead.themouth,thebodyforanyplacebuttheeyesisanacceptablelookingspotfortheunfocusedglance.
C.Actuallyinthiswaywearesaying,inbodylanguage,“Iknowyouarethere,”andamomentlaterweadd,“ButIwouldnotdreamofintrudingonyourprivacy.”
D.Itisthetechniqueweuseforanyunusualsituationwheretoolongastarewouldbeembarrassing.Whenweseeaninterracialcouple,wealsousethistechnique.Wemightuseitwhenweseeamanwithanunusualbeard,withextralonghair,withoutlandishclothes,oragirlwithaminimalminiskirtmayattractthislook-and-away.
E.ForthispassingencounterDr.ErvingGoffmaninbehavior.inpublicplacessaysthatthequicklookandtheloweringoftheeyesisbodylanguagefor,“Itrustyou.Iamnotafraidofyou.”
F.Sometimestherulesarehardtofollow,particularlyifoneofthetwopeoplewearsdarkglasses.
Withunfamiliarhumanbeings,whenweacknowledgetheirhumanness,wemustavoidstaringatthem,andyetwemustalsoavoidignoringthem.Tomakethemintopeopleratherthanobjects,weuseadeliberateandpoliteinattention.Welookatthemlongenoughto,makeitquiteclearthatweseethem,andthenweimmediatelylookaway.
66.______
Theimportantthinginsuchanexchangeisthatwedonotcatchtheeyeofonewhomwearerecognizingasaperson.Welookathimwithoutlockingglances,andthenweimmediatelylookaway.Recognitionisnotpermitted.
67.______
Ifyoupasssomeoneinthestreet,youmayeyetheoncomingpersonuntilyouareabouteightfeetapart,thenyoumustlookawayasyoupass.Beforetheeight-footdistanceisreached,eachwillsignalinwhichdirectionhewillpass.Thisisdonewithabrieflookinthatdirection.Eachwillveerslightlyandthepassingisdonesmoothly.
68.______
Tostrengthenthissignal,youlookdirectlyattheother'sfacebeforelookingaway.
69.______
Itbecomesimpossibletodiscoverjustwhattheyaredoing.Aretheylookingatyoutoolong,toointently?Aretheylookingatyouatall?Thepersonwearingtheglassesfeelsprotectedandassumesthathecanstarewithoutbeingnoticedinhisstaring.However,thisisaself-deception.Totheotherperson,darkglassesseemtoindicatethatthewearerisalwaysstaringathim.
Weoftenusethislook-awaytechniquewhenwemeetfamouspeople.Wewanttoassurethemwearerespectingtheirprivacyandthatwewouldnotdreamofstaringatthem.Thesameistrueofthecrippledorphysicallyhandicapped.Welookbriefandthenlookawaybeforethestarecanbesaidtobeastare.
70.______
Ofcourse,theoppositeisalsotrue.Ifwewishtoputapersondown,wemaydosobystaringlongerthanisacceptablypolite.Insteadofdroppingourgazeswhenwelockglances,wecontinuetostare.Thepersonwhodisapprovesof
27.
Accordingtothefirstparagraphofthepassage,theauthorconsiderswhichofthefollowingtobemosthelpfulindeterminingthevalueofspecialprotectivelaborlegislationforwomen?
A.Acomparativestudyofpatternsofwork-relatedillnessesinstatesthathadsuchlawsandinstatesmatdidnot.
B.Anestimateofhowmanywomenworkersareinfavorofsuchlaws.
C.Ananalysisofthecosttoemployersofcomplyingwithsuchlaws.
D.Anexaminationoftheactualeffectsthatsuchlawshavehadinthepast0nwomenworkers.
28.
Asmanifestedintheexperimentalstudy,rapideyemovementischaracterizedby______.
A.intenselyactivebrainwavetraces
B.subjects'quickerresponsetimes
C.complicatedmemorypatterns
D.revivalofeventsinthepreviousday
29.(75)
30.(76)
31.
______canbeusedtoheatyourwaterathomeinsteadofsomuchgasorelectricity?
32.
______isalongwithmanycomparativelysmallbuildingsoneitherside?
33.(72)
34.(67)
35.
Whatcanbeconcludedaccordingtotheauthor'sviewofthe"obesitygenes"?
A.Peoplewithageneticinclinationtogainweightcanslim.
B.Peoplewhoarebornfatwillremainthatwayalllife.
C.Alleffortstoloseweightwillprovefruitless.
D.Fatpeoplecanliveaveryhappylife,too.
36.PartB
Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.
Thepressisconstantlyremindingusthatthedramaticincreaseintheageofourpopulationoverthenext30orsoyearswillcausenationalhealthcaresystemstocollapse,economiestocrumpleunderthestrainofpensiondemandsanddisintegratingfamiliestobuckleunderincreasingcarecommitments.YetresearchatOxfordisbeginningtoexposesomeofthewidespreadmythsthatunderliethisrhetoric.Demographicageingisundoubtedlyareality.Lifeexpectancyindevelopedcountrieshasrisencontinuouslyoverthepastcentury,increasingthepercentageofthoseovertheageof60relativetothoseundertheageof15.By2030halfthepopulationofWesternEuropewillbeovertheageof50,withapredictedaveragelifeexpectancyofafurther40years.Bythen,aquarterofthepopulationwillbeover65andby2050theUK'scurrentnumberof10,000centenariansarepredictedtohavereachedaquarterofamillion.SomedemographershaveevensuggestedthathalfofallbabygirlsbornintheWesttodaywilllivetoseethenextcentury.
66.______
Indeed,ifthiscouldbeachievedthroughouttheworld,itwouldsurelycountasthesuccessofcivilization,forthenwewouldalsohaveconqueredthekillersofpoverty,disease,famineandwar.
Decreasingmortalityrates,increasinglongevityanddecliningfertilitymeansmallerpercentagesofyoungpeoplewithinpopulations.Overthepast20yearslifeexpectancyatbirthintheUKhasrisenbyfouryearsformen(to75)andthreeyearsforwomen(to80).MeanwhilefertilityratesacrossEuropehavedeclinedmoreorlesscontinuouslyoverthepast40yearsandremainwellbelowthelevelsrequiredforEuropeanpopulationstobeabletoreplacethemselveswithoutsubstantiveimmigration.Butagain,ratherthanseeingthisasadoomandgloomscenario,weneedtoexplorethepositiveaspectsofthesedemographics.Thenext50yearsshouldprovideuswithanopportunitytoenjoythemanyadvantagesofasocietywithamaturepopulationstructure.
67.______
ThefirstoftheseisthecurrentpoliticalrhetoricwhichclaimsthathealthservicesacrosstheWesternworldarecollapsingunderthestrainofdemographicageing.
68.______
Thesecondmythistheviewthattheratioofworkerstonon-workerswillbecomesoacutethatWesterneconomieswillcollapse,compoundedbyamassivegrowthinpensiondebt.Whilethereareundoubtedconcernsovercurrentpensionshortfalls,itisalsoclearthatworkingliveswillthemselveschangeoverthenextfewdecades,withapredictedincreaseinflexibleandpart-timeworkandtheprobableextensionofworkinglifeuntiltheageof70.Indeed,wehavetorecognizethatwecannotexpecttoretireattheageof50andthenbeabletosupportourselvesforanother40orsoyears.Neitherasolidpensionschemenorsavingscancarrypeoplethatlong.
69.______
Afurthermythisthatwewillallliveinloose,multigenerationalfamilies,experiencingincreasedemotionaldistancingfromourkin.Evidencefromavarietyofstudiesacrossthedevelopedworldsuggeststhat,ifanything,themodernfamilyisactuallybecomingmoreclose-knit.WorkcarriedoutbytheOxfordInstituteinScandinaviaandinaPan-EuropeanFamilyCareStudy,forexample,showsthatdespitedieinfluenceofthewelfarestate,overthepast10years,peoplehavecometovaluefamilyrelationshipsmorethanpreviously.
70.______
Inthedevelopedworld,therefore,wecanseeactualbenefitsfrompopulationageing:abetterbalancebetweenagegroups,matureandlessvolatiles
37.WorldleadersmetrecentlyatUnitedNationsheadquartersinNewYorkCitytodiscusstheenvironmentalissuesraisedattheRioEarthSummitin1992.TheheadsofstateweresupposedtodecidewhatfurtherstepsshouldbetakentohaltthedeclineofEarth'slife-supportsystems.Infact,thismeetinghadmuchdieflavouroftheoriginalEarthSummit.Towit:emptypromises,hollowrhetoric,bickeringbetweenrichandpoor,andirrelevantinitiatives.ThinkU.S.Congressinslowmotion.
Almostobscuredbythistorporisthefactmattherehasbeensomeremarkableprogressoverthepastfiveyears—realchangesintheattitudeofordinarypeopleinmeThirdWorldtowardfamilysizeandadawningrealisationmatenvironmentaldegradationandtheirownwell-beingareintimately,andinversely,linked.Almostnoneofthis,however,hasanythingtodowithwhatthebureaucratsaccomplishedinRio.
Oritdidn'taccomplish.OneitemontheagendaatRio,forexample,wasarenewedefforttosavetropicalforests.(ApreviousUN-sponsoredinitiativehadfallenapartwhenitbecameclearthatitactuallyhasteneddeforestation.)AfterRio,aUNworkinggroupcameupwithmorethan100recommendationsthathavesofargonenowhere.Oneproposedforestrypactwoulddolittlemorethanimmunizing"wood-exportingnationsagainsttradesanctions.
AnefforttodraftanagreementonwhattodoabouttheclimatechangescausedbyCO2andothergreenhousegaseshasfaredevenworse.BlockedbytheBushAdministrationfromsettingmandatorylimits,theUNin1992calledonnationstovoluntarilyreduceemissionsto1990levels.Severalyearslater,it'sasifRiohadneverhappened.AnewclimatetreatyisscheduledtobesignedthisDecemberinKyoto,Japan,butgovernmentsstillcannotagreeontheselimits.Meanwhile,theU.S.produces7%moreCO2thanitdidin1990,andemissionsinthedevelopingworldhaverisenevenmoresharply.Noonewouldconfusethe"Rioprocess"withprogress.
Whilegovernmentshaveditheredatapacethatcouldmakedriftingcontinentsimpatient,peoplehaveacted.Birth-ratesaredroppingfasterthanexpected,notbecauseofRiobutbecausepoorpeoplearedecidingontheirowntoreducefamilysize.Anotherpositivedevelopmenthasbeenagrowingenvironmentalconsciousnessamongthepoor.FromslumdwellersinKarachi,Pakistan,tocolonistsinRondonia,Brazil,urbanpoorandruralpeasantsalikeseemtorealizethattheypaythebiggestpriceforpollutionanddeforestation.Thereiscauseforhopeaswellinthegrowingrecognitionamongbusinesspeoplethatitisnotintheirlong-terminteresttofightenvironmentalreforms.JohnBrowne,chiefexecutiveofBritishPetroleum,boldlyassertedinamajorspeechinMaythatthethreatofclimatechangecouldnolongerbeignored.
Thewriter'sgeneralattitudetowardstheworldleadersmeetingattheUNis.
A.supportiveB.impartialC.criticalD.comedic
38.
Inthethirdparagraph,Dr.Laraghimpliesthat______.
A.peopleshouldnotbeafraidoftakingexcessivesalt
B.doctorsshouldnotadvisepeopletoavoidsalt
C.anadequatetoexcessivesaltintakeisrecommendedforpeopleindisease
D.excessivesaltintakehasclaimedsomevictimsinthegeneralpopulation
39.
Accordingtothepassage,theauthorfelttogiveRaoulaholidaytip.
A.excitedB.delightedC.embarrassedD.forced
40.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.
四、閱讀理解(5題)41.
第
44
題
Whichofthefollowingistrueaccordingtothetext?
42.
第
22
題
2.__________
43.
第
47
題
wouldremainsilentintheeventoftheft?_________
44.
第
27
題
WhatdoestheauthorsayabouttheordinarypeopleintheThirdWorldcountries?
45.
第
47
題
tellsthestoryaboutretrievingthelastoneoffourbrothersinthewar?__________
參考答案
1.Origin(s)ofstudent/wherestudentsarefrom/student(s)background(s)Origin(s)ofstudent/wherestudentsarefrom/student(s)background(s)
2.Theirmemory
3.D
4.Makebusi
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