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如图,在梯形ABCD中,AB∥CD,AB=4,AD=3,CD=2,=2,如果•=﹣3,则•= .
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高三下学期数学《》真题及答案
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MyfatherwasborninasmalltownintheUS.Hewasn'tsurewhathewantedfrom1butsomethingtoldhimto2andbeginanewadventure. HebeganthatadventuretravelingtocitiesintheUSbeforegoingontoAustraliaNewZealandandthePhilippines.Hetookmymotherandusthreedaughterswithhimandwentwherevertheroad3him. It'seasytofeel4whenyou'reontheroad.Wemadelotsofnewfriendsonourtrip﹣mostofthemaremechanicssinceweoften5hoursinrepairshops.Butthatwasawaymuch6thansittingbytheroadsidewhilewaitingfortheengineto7whenitwas40℃outside. Gettingalongwellsometimesseemed8.Therewerealwaysalotof9especiallyamongusback﹣seatpassengersaboutwhohadto10inthemiddle.Butevenifitwashardwelearnedalotabout11.WhenweweretravelinginthePhilippineswedrovetoQuezonCityoneday.Itshouldhavebeenanhour'sdrivebutwasnearlythreethankstobadroadsand12traffic.Didyouputoursuitcasesinthecar?myfatheraskedmymotheraswearrivedthere.Fromthebackseatwesawher13turntowardmyfather.Noshesaid.Ithoughtyoudid.Thatwashowaseven﹣hourcartripturnedintoa16﹣houronewhichwasmostlyspentin14. Onoccasionslikethatwehadtolearntoletgoofourangerbecausewewere15inarollingboxwiththesamepeoplefortherestofthe16.EvenifIsometimesfeltlikeopeningthecardoorand17oneofmysistersoutIkeptmyfeelingstomyself. Thisiswhyroadtripswerelike18universitiestous.We19ourPHDs博士学位inhowtogetalongwithotherpeoplejustbytravelinginouroldcar. Ifwewere20givenasecondchanceatlifewewoulddoitalloveragain.OnlythistimewouldIputthesuitcasesinthecarmyself. 1A.move B.life C.experience D.belief 2A.liveup B.struggleon C.getout D.walkaround 3A.took B.drove C.served D.controlled 4A.anxious B.upset C.helpless D.lonely 5A.wasted B.worked C.spent D.chatted 6A.better B.easier C.safer D.cleverer 7A.breakdown B.cooloff C.clearup D.turnover 8A.available B.alternative C.necessary D.impossible 9A.arguments B.fights C.embarrassments D.amusements 10A.settle B.rest C.sit D.watch 11A.sharing B.respect C.communication D.tolerance 12A.light B.thick C.local D.fast 13A.suddenly B.sensitively C.calmly D.slowly 14A.silence B.vain C.panic D.disappointment 15A.buried B.crazy C.stuck D.impatient 16A.holiday B.journey C.exploration D.march 17A.dragging B.pushing C.helping D.sending 18A.unusual B.common C.free D.mobile 19A.earned B.expected C.missed D.valued 20A.somewhere B.anytime C.somehow D.anyway
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I.M.PeitheChinese﹣Americanwhowasregardedasoneofthelastgreatmodernistarchitectshasdiedattheageof102. AlthoughheworkedmostlyintheUnitedStatesPeiwillalwaysberememberedforaEuropeanprojectHisredevelopmentoftheLouvreMuseuminParisinthe1980s.Hegaveustheglassandmetalpyramidinthemaincourtyardalongwiththreesmallerpyramidsandavastsubterranean地下的additiontothemuseumentrance. PeiwasthefirstforeignarchitecttoworkontheLouvreinitslonghistoryandinitiallyhisdesignswerefiercelyopposed.ButintheendtheFrench﹣andeveryoneelse﹣werewonover.WinningthefifthPritzkerArchitecturePrizein1983hewasthoughtasgivingthe20thcenturysomeofitsmostbeautifulinsidespacesandoutsideforms…Histalentandskillintheuseofmaterialsapproachthelevelofpoetry. AfterstudyingarchitectureattheMassachusettsInstituteofTechnologyandHarvardPeisetuphisownarchitecturalpracticeinNewYorkin1955. DesigningtheJohnF.KennedyPresidentialLibrary&Museumin1964establishedhimasaname.HisEastBuildingoftheNationalGalleryofArtinWashingtonin1978changedpeople'sideasofamuseum.Thesitewasanoddtrapezoid梯形shape.Pei'ssolutionwastocutitintwo.Theresultingbuildingwasdramaticlightandelegant﹣oneofthefirstcrowd﹣pleasingcathedralsofmodernart. Thoughknownasamodernistandnotableforhisformsbasedonarrangementsofsimplegeometric几何的shapesheonceurgedChinesearchitectstolookmoretotheirarchitecturaltraditionratherthandesigninginawesternstyle. InpersonI.M.Peiwasgood﹣humoredcharmingandunusuallymodest.Hisworkingprocesswasevolutionarybutinnovation创新wasneveranintendedgoal. Stylisticoriginalityisnotmypurposehesaid.Iwanttofindtheoriginalityinthetimetheplaceandtheproblem. 1WhatcanwelearnabouttheresultofredevelopmentoftheLouvreMuseum? A.ItwascriticizedbytheFrench. B.Itwasasuccess. C.ItmadetheLouvreMuseumlooksstrange. D.ItchangedthefunctionoftheLouvreMuseum. 2Whatcanwelearnfromtheunderlinedsentenceinparagraph3? A.Heisamasterinapplyingmaterials. B.Heisskilledinwritingpoems. C.Heoftencombinespoetryandconstruction. D.Hegetsinspirationfrompoetryindesigning. 3What'sthecorrectorderofthefollowingevents? a.DesigntheJohnF.KennedyPresidentialLibrary&Museum. b.StudyarchitectureattheMassachusettsInstituteofTechnologyandHarvard. c.DesigntheNationalGalleryofArt. d.WinthefifthPritzkerArchitecturePrize. A.abcd B.bacd C.bcad D.dacd 4WhatcanwelearnaboutI.M.Pei? A.Innovationwashisfirstgoalindesign. B.Hewastalentedandserious. C.Hepreferredwesternstyletotheeast. D.Helikedsimplegeometricshapes.
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解不等式组
7.5分Iusedtobecrazyaboutthehuntingseason.Theexcitementofwaitingforaprey猎物andtheprideofshowingoffthekillfascinatedme.Howevereverythingchangedafterthatcoldmorning. EarlyonthatdayofthelatefallIsetoffaloneforthewoodspackingagunabottleofhotcoffeeandthreethicksandwiches.Afterfindingthefreshdeer'stracksinthesnowIsettleddownbehindalittlebush. Isatthereforaboutanhour.ItwasthenthatIsawhim.Adeerabigbeautifuldeer!Therewasnocovernearertohimthan30yards.SurelyIcouldn'tmiss!IwaitedforhimtorealizeIwasthere.Iwaitedforhimtobeshockedandrunaway.Buthefooledmecompletely.Hecametowardsme!HewascuriousIsupposeormaybeliewasstupid﹣﹣﹣howelsecanyouexplainit?WellthatdeerwalkedrightuptowhereIwassitting.Thenhestoppedandlookedatme! Whathappenednextishardtobelievebutit'strue.Anditallseemedquitenatural.JustaswhenafriendlyyoungdeercomesnearyouIreachedupandscratchedhishead.Andhelikedtobescratched.Infacthepracticallyaskedformore.ThenIfedhimmysandwich!YesIknowwhatadeereatsbutthatdeeratemysandwich.Wellhefinallywenthiswaydownthehillandupthedeertrail.Shoothim?Notme.Youwouldn'thaveeithernotafterthat.Ijustwatchedhimgo. WhenIwasabouthalfwaybackIheardtwoshotsfollowedbyadullslam撞击afewsecondslater.Thosetwoshotsusuallymeanakill.Ihadforgottentherewereotherhuntersthatday. Thosehunterswouldneverknowtheycouldhavescratchedhishead. 1Whydidn'ttheauthorkillthedeer? A.Hepreferredtoshootashydeer. B.Hewasfooledbythetrickydeer. C.Hewassympatheticforthedeer. D.Hewastooshockedtoshootthedeer. 2Whatmostprobablyhappenedtothedeerintheend? A.Otherhuntersshotthedeertodeath. B.Otherhuntersscratchedthedeer'sheadtoo. C.Thedeermanagedtoescapefrombeingshot. D.Thedeerwouldbecomefriendswiththeauthor. 3What'sthebesttitleofthistext? A.AHuntinginLateFall. B.ALovelyDeer. C.TheCruelKilling. D.TheLastHunting.
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