2019届高考英语阅读理解专题训练主旨大意篇

高考英语阅读理解专题训练主旨大意篇（一）WhydoAmericansstrugglewithwatchingtheirweight,whiletheFrench,whoconsume（消耗）richfood,continuetostaythin?NowaresearchbyCornellUniversitysuggestshowlifestyleanddecisionsabouteatingmayaffectweight.ResearchersconcludedthattheFrenchtendto（往往，倾向于）stopeatingwhentheyfeelfull.However,AmericanstendtostopwhentheirplateisemptyortheirfavoriteTVshowisover.AccordingtoDr.JosephMercola,ahealthexpert,theFrenchseeeatingasanimportantpartoftheirlifestyle.Theyenjoyfoodandthereforespendafairlylongtimeatthetable,whileAmericansseeeatingassomethingtobesqueezed（挤出）betweentheotherdailyactivities.MercolabelievesAmericanslosetheabilitytosensewhentheyareactuallyfull.SotheykeepeatinglongaftertheFrenchwouldhavestopped.Inaddition,hepointsoutthatAmericansdrivetohugesupermarketstobuycannedandfrozenfoodsfortheweek.TheFrench,instead,tendtoshopdaily,walkingtosmallshopsandfarmers'marketswheretheyhaveachoiceoffreshfruits,vegetables,andeggsaswellashigh-qualitymeatsforeachmeal.AfteravisittotheUnitedStates,MireilleGuiliano,authorofFrenchWomenDon'tGetFat,decidedtowriteabouttheimportanceofknowingwhentostopratherthansuggestinghowtoavoidfood.Todayshecontinuestostayslimandrarelygoestothegym.Inspiteof（尽管）allthesedifferences,evidenceshowsthatrecentlifestylechangesmaybeaffectingFrencheatinghabits.Todaytherateofobesity—orextremeoverweight—amongadultsisonly6%.However,asAmericanfastfoodgainsacceptanceandtheyoungreject（拒绝）oldertraditions,theobesityrateamongFrenchchildrenhasreached17%—andisgrowing.（1）InwhatwayaretheFrenchdifferentfromAmericansaccordingtoDr.JosephMercola?Theygoshoppingatsupermarketsmorefrequently.Theysqueezeeatingbetweentheotherdailyactivities.Theyregardeatingasakeypartoftheirlifestyles.Theyusuallyeattoomuchcannedandfrozenfood.B.lifestyleandobesity（2）Thistextismainlytherelationshipbetween.B.lifestyleandobesityA.AmericansandtheFrenchC.childrenandadultsD.fastfoodandoverweightC.childrenandadultsThetextismainlydeveloped.A.bycontrast（对比） B.byspaceC.byprocess（变化过程） D.byclassification（分类）Wheredoesthistextprobablycomefrom?A.ATVinterview B.AfoodadvertisementC.Ahealthreport D.Abookreview（书评）（二）Whenwe'reinneed,wealwaysturntoourparentsforhelp.Butwouldyoulikethemtoheartheconversationsyouhavewithyourfriendsontheschoolplaygroundorlunchqueue?Socialnetworkingsiteshavebecomeextensions（延伸）oftheschoolhallways,sowouldyouaddyourparentsas“friends”andallowthemtoviewyouronlineactivitiesandconversationswithfriends?Inthepastthegenerationgapincludedatechnologygap,wherechildrenwereuptodatewithlatesttechnologyandparentswereleftbehind,contenttocontinuetheirdaytodaylivesastheyalwayshadbecausetheyhadnoneedtoknowmoreabouttechnology.However,moreandmoreparentsarebeginningtorealizejusthowimportantsocialnetworksareintheirlives.Thisrealizationhasgivenmanyparentsthemotivationtoeducatethemselvesaboutsocialnetworkingsites.Thesedaysmanypeopleareattractedtosocialnetworkingsitesbecausetheycanchoosewhotheyhavearoundthem;there'salsoacertainamountofcontroloverprivacythatwedon'tgetinreallife.Sometimeswefeelthatprivacyisviolated（侵犯）whenwemustaccepta“friend”requestfromaparentorfamilymember.It'sadifficultchoicewhetherornottoallowaparenttobecomeapartofouronlinelives.Ontheonehandwedon'twantto“reject”theirrequestbecausethatmighthurttheirfeelingsormakethemfeelyouhavesomethingtohide.Ontheotherhandifyoudoaccept,thenyoucouldhaveasenseofbeingwatchedandnolongerfeelfreetocommentorcommunicatethewayyoudidbefore.Arecentsurveysuggestedthatparentsshouldn'ttakeitpersonallyiftheirchildignorestheirrequest:“Whenateenignoresaparent'sfriendrequest,itdoesn'tnecessarilymeanthattheyarehidingsomething,butitcouldmeanthatthisisonepartoftheirlifewheretheywanttobeindependent.Perhapstalkingwithparentsandgivingexplanationswouldhelpsoftentheblowifyoudochoosenottoaddthemtoyourfriendslist.Thepassageismainlyabout.privacyonlineB.parents'friendrequestsC.thegenerationgapD.socialnetworks(2)FromParagraph2,welearnthat.A.parentshaverealizedtheimportanceofsocialnetworksparentsfeelsecureabouttheirprivacyonlinesocialnetworkssuccessfullyfillthegenerationgapsocialnetworksofferaplatformforparentstocommunicateTeenagersmayrefuseaparent'sfriendrequestbecause.theirparentsmakenegativecommentsonthemtheyhidesomethingfromtheirparentstheyareunwillingtobewatchedbyparentstheirparentstendtofallbehindintechnologyThepassageiswrittenmainlyfor.A.parents B.teachers C.researchers D.teenagers(三)It'sFridaymorningintheyear2050,andyou'rerunninglate.Yougotcarriedawaywatchingthemusicvideothatisplayinginthecornerofyourbathroommirrorwhileyouwerebrushingyourteeth.HowwillyougettoyourofficeatMegaGigaIndustriesontime?AquickcheckofyourInternet-connectedrefrigeratortellsyouyourtrainisabitbehindschedule,too.Soyoudecidetodriveyourenvironmentallyhydrogenfuel(环保氢燃料)carinstead-orrather,letyourcardriveyou.It'sprogrammedtoknowthewayanditwillgetyoutherewithoutgettinglost.Settlingintoyourofficechair,whichchangescolortomatchwhatyou'rewearing,youpickupyesterdaymorning'snewspaper.Printedonreusableelectronicpaper,itrewritesitself.Nowit'stimeforyourbigmeeting.Uh-oh!You'veleftyourhandwrittennotesathome.Noproblem.Thesmartpenyouusedhasstoredanelectroniccopyofwhatyouwrote.Yourwristwatchvideophone(可视电话)suddenlyrings.Yourbestfriend'sfacepopsuponthescreenaskingwhatyou'redoingthisweekend.WillyouplayvirtualsoccerwiththeU.S.Olympicteam?No,no.Yourfriendsays,soyouhavetotakethenewelevator(madeofmicroscopicfibersmanytimesstrongerthansteel)60000milesintospace.Couldthisscenereallytakeplaceinjustacoupleofdecades?Theresearcherswhoarenowdevelopingallthesethingsthinkso.Thesehigh-techproducts(高科技产品)maybeascommonin20yearsascellphonestoday.Howmanyhigh-techproductsarementionedinthetext?A.Four. B.Six. C.Eight. D.Ten.Accordingtothetext,ifyoumissthetraintowork,youcan.A.driveyoursmartcarinstead B.takethespaceshipinsteadC.waitforthenexttrain D.workathomeWhatcanbeinferredfromthetext?Spacetourismwillbeareality.Transportationwillbetrouble-free.Peoplewillhavemoretimetoenjoythemselves.Videophoneswillreplaceface-to-facecommunications.Whatisthebesttitleforthenext?A.GreatChangesinFuture B.ModernTimesC.LifeintheFuture D.DevelopmentinTechnology(四)Argentinainthelatenineteenthcenturywasanexcitingplace.Around1870,itwasexperiencinganeconomic(经济的)boom,andthecapital,BuenosAires,attractedmanypeople.Farmers,aswellasafloodofforeignersfromSpainandItaly,cametoBuenosAiresseekingjobs.Thesejobsdidn’tpaywell,andthepeoplefeltlonelyanddisappointedwiththeirnewlifeinthecity.Astheunhappynewcomersmixedtogetherinthepoorpartsofthecity,thedanceknownanthetango(探戈舞)cameintobeing.Atthebeginningthetangowasadanceofthelowerclasses.Itwasdancedinthebarsandstreets.Atthattimetheremanyfewerwomenthanmen,soifamandidn’twanttobeleftout,hisonlychoicewastodancewithanothermansothathecouldattracttheattentionofthefewavailablewomen.Gradually,thedancespreadintotheupperclassesofArgentineansocietyandbecamemorerespectable.InEuropeatthistime,stronginterestindancefromaroundtheworldwasbeginning.TheinterestininternationaldancewasespeciallyevidentinParis.Everykindofdancefromballet(芭蕾舞)tobellydancingcouldbefoundonthestagesoftheParistheatersoftheParistheaters.AftertangodancesfromArgentinaarriveinEurope,theybegantodrawtheinterestofthepublicantheyperformedtheirexitingdanceincafes,Thoughnoteveryoneapprovedofthenewdance,sayingitwasalittletooshocking,thedancedidfindenoughsupporterstomakeitpopular.Thepopularity(流行)Ofthetangocontinuedtogrowinmanyotherpartsoftheworld.SoldierswhoreturnedtotheUnitedStatesfromWorldWarIbroughtthetangotoNorthAmerica,ItreachedJapanin1926,andin2003theArgentineanembassyinSeoulhiredalocaltangodancertoactanakindofdanceambassador,andpromotetangodancingthroughoutSouthKorea.TheoriginofthetangoisassociatedwithBellydancesB.AmericansoldiersC.SpanishcityD.thecapitalofArgentina(2)Whichofthefollowingistrueaboutthetango?A.ItwascreatedbyforeignersfromSpainandItaly.PeopleoftheupperclasseslovedthetangomostItwasoftendancedbytwomaleinthebeginningAdancerinSeoulbecametheArgentineanambassador.BeforeWorldWarI,thetangospreadtoA.America B.Japan C.France D.SouthKoreaWhatcanbethebesttitleforthetext?A.HowtoDancetheTango B.TheHistoryoftheTangoC.HowtoPromotetheTango D.TheModernTangoBoom(五)Womenmakebetterdriversthanmenformanyreasons.Whyisthat?Ifyouaskme,I'dliketosay,menknowthatwomenarebetterdriversbutdonothavethecouragetoadmitthetruth—womenarequeensoftheroad.Unlikemen,womenstopfordirectionswhentheyhavenoideaastowheretheyaregoing.Wedon'tdrivearoundforhourspointlesslywastingatankofgasonlytofindourselvesheadinginthe

wrongdirection.Haveyoueverbeeninacarwithamanwhoislost?Hetellsyoutoshutupwhenyoubegintoopenyourmouth.Andeveryfiveminutesorsohetakesaturngoingforty-fivemilesperhouronlytofindouthe'smadeanotherwrongturn.Speedingiswhatmendobestontheroad.Thereisareasonwhymengetmorespeedingticketsthanwomen.Notbecausewetricktogetoutofticketsbutonlybecausewedon'tgetpulledoverasfrequently.Wedon'tspeed.Wehavemoreintelligencethansenselesslytoputourownlivesaswellasthelivesofothersindanger.MylargestissuewithmaledriversishowamajorityofthemdrivewithonehandonthewheelandtheotherhanddoingonlyGodknowswhat.Theseatisbackedasfaraspossible,andthey'retotallylostintoloudmusicbeyondanecessarylevel.Youdon'teverseewomendrivinglikethat.Ifeelthattheaboveevidencemorethanprovesmypointsthatwomenarenotonlybetterdriversbutalsosaferdriversthanmen.Wewomenruletheroad.Oh,andmen,ifyouwanttocontinuecriticizing（批评）womenforbeingbaddrivers,bringiton.Ifeelthattheaboveevidencemorethanprovesmypointsthatwomenarenotonlybetterdriversbutalsosaferdriversthanmen.Wewomenruletheroad.Oh,andmen,ifyouwanttocontinuecriticizing（批评）womenforbeingbaddrivers,bringiton.Ifawomandriverfeelslost,shewillA.stopthecarandaskpeopleforhelpC.tellthemannexttohertoshutupAccordingtoParagraph4,mendriversA.makingjokesaboutwomenC.notstoppingfordirectionsWhatisthepassageabout?Womenstopfordirections.C.Womenmakebetterdriversthanmen.takethewrongturnsatahighspeedD.driveaimlesslyforhourswithoutstoppingworriesthewritermost.B.notpayingfullattentionD.gettingmorespeedingticketsB.MenmakebetterdriversthanWomen.D.Womenruletheroad.（六）Whycan'tsomepeopleevengetaninchofwhattheydreamofbecoming?Blameitonpuredreamingandlackofsettinggoalsforachievingtheirdreams.Settinggoalsisverysignificantpartofaccomplishingandpositiveactions.Itislikescaling攀爬）a200feetconstructionandmarkingintheearlyhoursonwhatfeetyouwouldliketoreachatthisspecificperiod.Peoplewhosetgoalsliterallygenerate（形成）amapoftheirgoalsettingsinlife,markingwheretheyshouldstart,wheretopause,wheretostudyabit,andwhereandwhentoend.Oncethismapcomesintobeing,itallowsthemapdrawertocheckwhereheisinthescheme(安排)ofthingsandwhetherornotheismakingsomeplanningthatwilltakehimclosertohisgoals.Bysettinggoals,peoplewillknowhowtheyaredoingandwhattheyshouldbedoingtogettheirgoalsordreamsinlife.Theywillknowiftheycanrelaxoriftheyhavetodoubletheireffortswhentheyarefallingshortofwhatisexpectedofthem.Goalsettingmeansapersonisproactiveindealingwithchallengesthatmayaffecthisplans.Beingproactivemeansoneisabletooutlinepossibledifficultiesthatmayhappenaswellasthesolutions(解决方法)tothesedifficulties.Bydoingthis,apersonisnoteasilyscaredordefeatedwhenchallengeshappenbecausehehasalreadypreparedforthem.Heknowstheycanhappenandhehaspreparedasolutionorstrategywhenthattimecomes.Settinggoalswillenablepeopletotracktheirprogressinwhateverhardworktheysetouttodo.Itwillhelppeoplebecomemoreconfidentinthemselvesandmoremotivatedtogettheirplans.Thepurposeofthispassageisto.A.explainthedifferencebetweenthetwogoalsB.showtheimportanceofsettinggoalsC.tellushowtosetandachieveone'sgoalsD.tellussettinggoalsmakesoneconfidentTheunderlinedword“proactive”inparagraph5mayhavetheclosestmeaningto“”.A.positive B.careful C.brave D.preparedAccordingtotheauthor,onehadbetterinmakingagoalinlife.A.takeanactiveattitude B.createaschemeasawholeC.considerthepossibletroubles D.checkwhereheisfrequently(七)Onthebasisofculturalrelativism,thevaluesofartisticworksaresimplyreflectionsoflocalsocialandeconomicconditions.Suchaview,however,failstoexplaintheabilityofsomeworksofarttoexcitethehumanmindacrossculturesandthroughcenturies.HistoryhasseentheendlessproductionsofShakespeareanplaysineverymajorlanguageoftheworld.ItisneverraretofindthatMozartpacksJapaneseconcerthalls,asJapanesepainterHiroshigedoesParisgalleries.Uniqueworksofthiskindaredifferentfromtoday'spopularart,eveniftheybeganasworksofpopularart.Theyhavesetthemselvesapartintheirtimelessappealandwillprobablybeenjoyedforcenturiesintothefuture.Ina1757essay,thephilosopherDavidHumearguedthatbecause“thegeneralprinciplesoftasteareuniform(不变的)inhumannature,“theofashnaeworksofartmightbeessentiallypermanent.HeobservedthatHomerwasstilladmiredaftertwothousandyears.Worksofthistype,hebelieved,spoketodeepandunvaryingfeaturesofhumannatureandcouldcontinuetoexistovercenturies.Nowresearchersareapplyingscientificmethodstothestudyoftheuniversalityofart.Forexample,evolutionarypsychologyisbeingusedbyliteraryscholarstoexplainthelong-lastingthemesandplotdevicesinfiction.Thestructuresofmusicalpiecesarenowopentoexperimentalanalysisasneverbefore.Researchfindingsseemtoindicatethatthecreationbyagreatartistisaspermanentanachievementasthediscoverybyagreatscientist.Accordingtothepassage,whatdoweknowaboutculturalrelativism?Itintroducesdifferentculturalvalues.Itexplainsthehistoryofartisticworks.Itexcitesthehumanmindthroughouttheworld.Itrelatesartisticvaluestolocalconditions.InParagraph2,theartistsarementionedinordertoshowthat.popularartsarehardlydistinguishablefromgreatartshistorygivesartworksspecialappealtosetthemapartgreatworksofartcangobeyondnationalboundariesgreatartistsareskilledatcombiningvariousculturesAccordingtoHume,someworksofartcanexistforcenturiesbecause.theyappealtounchangingfeaturesofhumannaturetheyestablishsomegeneralprinciplesofarttheyarecreatedbytheworld'sgreatestartiststheyaretheresultsofscientificstudyWhichofthefollowingcanbestserveasthetitleofthepassage?A.IsCulturalRelativismScientific? B.ArePopularArtsPermanent?C.IsHumanNatureUniform? D.AreArtisticValuesUniversal?(八)Astronautsonshortershuttlemissions(使命)oftenworkverylongdays.Tasksarescheduledsotightlythatbreaktimesareoftenusedtofinishthetightlythatbreaktimesareoftenusedtofinishtheday'swork.ThistypeofscheduledisfartoodemandingforlongmissionsontheInternationalSpaceStation(ISS).ISScrewmembersusuallyliveinspaceforatleastaquarterofayear.TheyworkfivedaysonandtwodaysofftomimicthenormalwaytheydothingsonEarthasmuchaspossible.Weekendsgivethecrewvaluabletimetorestanddoafewhoursofhousework.Theycancommunicatewithfamilyandfriendsbyemail,internetphoneandthroughprivatevideoconferences.Whileastronautscannotgotoabaseballgameoramovieinorbit,therearemanyfamiliaractivitiesthattheycanstillenjoy.Beforeamission,thefamilyandfriendsofeachISScrewmemberputtogetheracollectionoffamilyphotos,messages,videosandreadingmaterialfortheastronautstolookatwhentheywillbefloating370kilometersabovetheEarth.Duringtheirmission,thecrewalsoreceivescarepackageswithCDs,books,magazines,photosandletters.Andasfromearly2010,theinternetbecameavailableontheISS,givingastronautsthechancetodosome“websurfing(冲浪)”intheirpersonaltime.Besidesrelaxingwiththesemorecommonentertainments,astronautscansimplyenjoytheexperienceoflivinginspace.ManyastronautssaythatoneofthemostrelaxingthingstodoinspaceistolookoutthewindowandstareattheuniverseandtheEarth.BoththeshuttleandtheISScircletheplanetseveraltimeseachday,andeverymomentoffersanewviewoftheEarth'svastlandmassandoceans.Whatdoestheword“mimic”inParagraph1probablymean?A.Find. B.Copy. C.Change. D.Lose.WhichofthefollowingbestdescribesthefamiliesoftheastronautsontheISS?A.Theyarecaringandthoughtful. B.Theyareworriedandannoyed.C.Theyareimpatientandannoyed. D.Theyareexcitedandcurious.Inthefinalparagraph,theauthorshowsthatastronauts.getmorepleasureinspacethanontheEarth.findinglivinginspaceabitboringandtiringregardspacelifeascommonlovetoseetheEarthfromspaceThepassagemainlydiscusseshowastronauts.A.workforlongermissionsinspace B.connectwithpeopleontheEarthC.observewithEarthfromspace D.spendtheirfreetimeinspace（九）ChinaMerchantsBankCoLtdhasteamedupwithride-hailingmajorDidiKuaiditoprovideautomobilefinancingandexpanditsreachinChina'sboomingmobilepaymentindustry.Thetwohaveinkedacomprehensivepartnership,whichincludesastrategicinvestmentbytheformerinthelatter.Underthepartnership,CMBwillbecomethefirstbricks-and-mortarbankthatcanofferin-appcreditcardpaymentstoDidiusers.Atpresent,usersofDidicanonlychoosethird-partypaymentsolutionslikeWeChatPaymentandAlipaytopaycabfares.ZhaoJu,vice-presidentofCMB,saidthecooperationwithDidiwasanimportantstepinitsmobileInternetfinancestrategy.“CMB'smobilepaymentisgoingtoenteranewchapterbyleveragingDidiKuaidi'svastuserbase,”hesaid.AccordingtoareportbyChinaInternetNetworkInformationCenterearlierthismonth,Didiholds87.2percentofChina'sprivatecarhailingmarket.Thecompanysaidithasreceived1.43billioncar-hailingrequestsonitsplatformsin2015,whichmeans1.43billionpaymentsweremadeviasmartphones.CMBisexpectedtouseDiditoreachthecoreusersofChina'smobilepaymentmarket.JeanLiu,presidentofDidi,saidmanyoftheexpatspreferpaymentbycreditcardratherthanAlipayorWeChat.“Thenewpartnershipwillhelpimproveservicequalityandcustomerloyalty,”shesaid.TheinvestmentmakesCMBpartofDidi'sexistinginvestors,includingTencentHoldingsLtd,AlibabaGroupHoldingLtdandChinaInvestmentCorporation.Bothofthecompaniesdeclinedtorevealtheactualamountoftheinvestment.Liu,whoshoweduponTuesdayforthefirsttimeinpublicafterhertreatmentforbreastcancer,saidthecooperationwithCMBisforthelongrunand“thecapitalinvestmentisonlypartofit”.Underthepartnership,CMBandDidiwillcooperateonawiderangeofinitiativesonfinancialservicesandonline-to-offlinecooperation.Apartfromthein-appcreditcardpayments,thetwocompaniesaregoingtolaunchjointcreditcardsinlateFebruaryandautomobilefinancingservicesforDidi'scarowners.CMB'sbranchesacrossChinaareexpectedtohelpDidirecruitmoredrivers.“Thereisalotofroomforimaginationinourpartnership,”Lisaid,addinginfuturepeoplemayusetheirCMBcreditcardrewardpointstopayfortherideonDidi.LiChao,ananalystwithiResearchConsultingGroup,saidthepartnershipmaynotsignificantlyboostCMB'smobilepaymentbusiness.“DidihaseducatedthemarketforthreeyearsanditscustomershaveformedthehabitofpayingbyWeChatorAlipay.SoIthinkCMBcanonlyturnaverysmartproportionofDidiusersintoitspaymentcustomer,”hesaid.“ButthemoveshowsthatChina'straditionalbankingindustryisfinallythinkingoutoftheboxandlookingforoutsidepartnersinInternetfinancecompetition,”hesaid.StatisticsfromBig-DataResearchshowedthatmorethan90percentofChina's9.3trillionyuan($1.41trillion)worthofthirdpartymobilepaymentmarketisdonatedbyAlibabaandTencent.WhichofthefollowingisnotthepurposeofCMB'scooperationwithDidi?CMBisexpectedtouseDiditoreachthecoreusersofChina'smobilepaymentmarket.ThroughthecooperationwithDidi,CMBwillhelpimproveservicequalityandcustomerloyalty.CMBwilllaunchjointcreditcardswithDiditoexpanditsservice.CMBwillturnaverylargeproportionofDidiusersintoitspaymentcustomer.Whatcanbeinferredfromthepassage?CMB'smobilepaymentisgoingtoenteranewchapter.China'straditionalbankingindustryisfacingfierceInternetfinancecompetition.CMBandDidiwillhaveanonline-to-offlinecooperation.ThemajorityofDidiuserswillpaybyCMBin-appcreditcard.What'sLiChao'attitudetowardsthepartnershipbetweenCMBandDidi?A.cautious. B.positive. C.indifferent. D.disapproving.Themainideaofthispassageisthat.CMBdevelopspartnershipwithDidiKuaidiCMBislookingforoutsidepartnersinInternetfinancecompetitionDidiKuaidiisgoingtoenteranewchapterAlibabaandTencentdominatethemobilepaymentmarket(十)AbiologistfromtheNationalParkServicediscoveredarareandunusualmammoth(猛犸)skull(颅骨)buriedina13,000-year-oldrocklayerontheSantaRosaIsland,thesecondlargestlandmassintheChannelIslands,California.Thefossiloftheextinctgiantanimalisleavingmanypaleontologists（古生物学家）scratchingtheirheads.Despitethefactthatit'spossiblythebestpreservedmammothskulleverfoundandofhighscientificimportance,thespeciesoftheindividualitbelongedtocan'tseemtobeidentifiedyet—it'stoobigtobeapygmy（特别矮小的）mammothandtoosmalltohavecomefromaColumbianmammoth.Somesayit'sanewspecieswhileothersbelievethetruthliessomewhereinbetween.ThefirstmammothsshowedupinNorthAmericaaroundtwomillionyearsago,butitwasonlyduringthelasttwoiceagesthattheColumbianspecies,whichcouldgrowtobeupto14feettall,madeitswaytotheChannelIslands100mileswestofLosAngeles.Oncetheicemelted,manypopulationsbecametrappedontheislandandevolvedintopygmymammoths,anendemicspecies（地方种）totheChannelIslandswhichgrewonlytosixfeettall.Judgingfromitssize,thenewlyfoundmammothskulldoesn'tseemtofitanyofthetwospecies,