大学英语四级模拟题

PartIWriting(30minutes)1.年轻人越来越趋向于打电话2.信件是否会被电话取缔3.我的观点PartIIReadingComprehension(SkimmingandScanning)(15minutes)HolySquid!PhotosOfferFirstGlimpseofLiveDeep-SeaGiantLikesomethingstraightoutofaJulesVernenovel,anenormoustentaclecreatureloomsoutoftheinkyblacknessofthedeepPacificwaters.Butthisisn'tsciencefiction.AsetofextraordinaryimagescapturedbyJapanesescientistsmarkthefirst-everrecordofalivegiantsquid(Architeuthis)inthewild.Theanimal—whichmeasuresroughly25feet(8meters)long—wasphotographed2,950feet(900meters)beneaththeNorthPacificOcean.Japanesescientistsattractedthesquidtowardcamerasattachedtoabaitedfishingline.Thescientistssaytheysnappedmorethan500imagesofthemassivecephalopodbeforeitbrokefreeaftersnaggingitselfonahook.Theyalsorecoveredoneofthegiantsquid'stwolongesttentacles,whichseveredduringitsstruggle.Thephotosequence,takenoffJapan'sOgasawaraIslandsinSeptember2004,showsthesquidhominginonthebaitedlineandenvelopingitinaballoftentacles.TsunemiKuboderaoftheNationalScienceMuseuminTokyoandKyoichiMorioftheOgasawaraWhaleWatchingAssociationreporttheirobservationsthisweekinthejournalProceedingsoftheRoyalSocietyB.Architeuthisappearstobeamuchmoreactivepredatorthanpreviouslysuspected,usingitselongatedfeedingtentaclestostrikeandtangleprey,theresearcherswrite.Theyaddthatthesquidwasfoundfeedingatdepthswherenolightpenetratesevenduringtheday.GiantBreakthroughDespitepeople'sfascinationwiththisdeep-seabehemoth,thegiantsquid'slifeandhabitshaveremainedlargelyamystery.Thelittleinformationknownhasbeenmostlybasedondeadanddyingspecimensthatwerecaughtbycommercialfishingboatsorwashedashore.Themysteriouscreaturehasinspiredcountlessseamonstertalesandhasbeenthesubjectofvariousscientificexpeditions.Sincethemid1990stherehavebeenanumberofresearchtripsinsearchofgiantsquid.Camerasattachedtodeep-divingsubsorspermwhaleshavebeenusedtotrytocapturetheelusiveanimalsonfilm,butwithoutsuccess.TheJapaneseresearchersusedspermwhalesasguidestohelpthempinpointlikelygiantsquidhaunts.Overtheyearswhalershavereportedfindingahighnumberoflargesquidbeaksinthemammals'stomachs,peggingspermwhalesasprimarypredatorsoflargesquid.Theimagesaregeneratingconsiderableexcitementamongsquidexperts.Ithinkit'swonderfulthatwe'vefinallygotapictureofalivinggiantsquid,saidRichardEllis,aresearchassociateattheAmericanMuseumofNaturalHistoryinNewYorkandauthorofTheSearchfortheGiantSquid.IthoughtitwouldonlybeamatteroftimebeforesomeonegotimagesofArchiteuthis,headded.Afterall,it'snotanendangeredspecies,notevenallthatrare,andit'soneofthelargestofallinvertebrates.SotheJapanesefilmfinalybreaksthroughandrendersthestatement'nobodyhaseverseenalivinggiantsquid'inoperative.SquidexpertMartinCollinsoftheBritishAntarcticSurveybasedinCambridge,England,saysthenewimagesareafantasticachievement.Themarinebiologistsayshewasskepticalthatadedicatedgiantsquidhuntwouldsucceed.Hethoughtthefirstwildsightingwouldprobablycomebyaccident.Fairplaytotheseguyswho'vemadetheeffort,goneoutthereandlookedinwhattheythoughtwasagoodarea,andfoundit,hesaid.HuntingforCluesCollinsisespeciallyinterestedincluestheimagesmightprovidetothewaygiantsquidswimandhuntinthedeepocean.Seeingtheanimalsonfilmgivesyouatremendousinsightintohowtheylivedownthere,hesaid.Itshowstheyareprettyactiveanimals,andthatanswersabigquestionthat'sbeenoutthereforsometime.Collinssaysthereweretwocompetingschoolsofthoughtamonggiantsquidexperts.Onewastheideathat[giantsquid]werefairlyinactiveandjustdriftedaround,danglingtheirtentaclesbelowthemlikefishinglurestocatchwhatcameby,hesaid.Theothertheorywasthattheywereactuallyquiteactive.Thisnewevidencesupportsthis,suggestingtheyareactivepredatorswhichcanmovereasonablyquickly.Theeffortsthesquidwenttountangleitself[fromthebaitedfishingline]alsoshowstheyarecapableofquitestrongandrapidmovement,headded.Thestudyteamreportsthattheseveredtentaclerepeatedlygrippedtheboatdeckandcrewafteritwashauledaboard.Thesquid'stentaclesarearmedwithsuckers,eachringedwithtinyteethtohelpsnareprey.Measuring18feet(5.5meters)long,analysisofthetentacleconfirmeditcamefromagiantsquidandallowedtheresearcherstoestimatethetotallengthoftheanimal.Buttheresearcherscautionthattheirdataassumethetentaclewasseveredatitbase.Ifnot,thesquidmayhavebeenconsiderablylarger.Thelongestgiantsquidonrecordmeasured59feet(18meters),includingitstwoelongatedtentacles.SheddingLightonGiantSquidGiantsquid,alongwiththeirclosecousinscolossalsquid(Mesonychoteuthis),havethelargesteyesofanyanimal.Giantsquiddohaveparticularlylargeeyes,whichwouldsuggestvisionisimportanttothem.Havingalargeeyeisn'tunusualindeep-seaanimals-youseeitquiteofteninfish.Thefactthattheanimalcaughtonfilmwasswimmingintotaldarknesssuggeststhespeciesdetectspreyusingalternativelightsources.Theonlylightdownthereislikelytobelightproducedbyotheranimals,saidCollinsoftheBritishAntarcticSurvey.TheJapaneseteamthinksthatresearchtechniquessimilartotheirowncouldbeusedtobringaboutmorecloseencounterswithgiantsquid.EllisoftheAmericanMuseumofNaturalHistoryagrees.I'msurewecanlearnalotfromananalysisoftheseimages,hesaid.Andnowthatwehavean