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1完形填空专项练习：1Adarkhorseisonethatshowsunexpectedracingspeedandcomesinfirst,1theexpertssaidhehadlittlechanceofwinning.Inpolitics,an2candidate(候选人)forofficewho3anomination(提名)orelectioniscalledadarkhorse.BritishPrimeMinisterBenjaminDisraelisbelievedto4thefirsttousethephrase.Inhisnovel,TheYoungDuke,publishedin1831,Disraeldescribedahorseraceandtoldhowthetwotopchoicesfell5,whileadarkhorsewhichhadneverbeenthoughtofrushingpastthegrandstand(看台)inasweepingtriumph.Fromracingtopoliticswasashortstep.Asapoliticalphrase,“darkhorse”6forthefirsttimeinthenationalDemocraticPartycongressof1844.ThedarkhorsewasJamesKnoxPolkwhobecamethellthPresidentoftheUnitedStates.PolkhadbeentheleaderoftheHouseofRepresentativesfrom1835to1839.Hehad7beenGovernorofthestateofTennessee.Butasanationalleader,hewasconsideredapolitical8.Nevertheless,he9wontheDemocraticnominationandwaselected10.MartinVanBurenofNewYork,AformerPresident,seemedsureofgettingthenomination.ButheopposedmakingtheterritoryofTexaspartoftheUnitedStatesasmotherstate.Hewas11itbecausetherewasslaveryinTexas.VanBurendidnotwantanotherslavestateintheUnion.Asaresult,he12supportamongthoseDemocratswhosupportedslavery.Atthe1884congress,VanBurencouldnotgetenoughvotestowinthenomination.Thecongressgotinto13.Therefore,theDemocraticleadersdecidedthattheonlywisethingwouldbetorunadarkhorse,14whocouldunitetheparty.Andso,oneofthepartyleaders,GeorgeBancroft,proposedthenameofJamesKnoxPolk.Hewon,andtheparty15behindhim,Andhedefeatedhisopponent,HenryClayoftheWhigParty.16the1844congress,thedarkhorsecandidatesbecameanestablishedfactofnationalpoliticallife.Onehistoriansaid,Theinventionofthedarkhorsewas17aremarkableproductofourprofessionalpolitics.Thismade18possibleforpartyleaderstochoosecandidateswhowerenottiedtocertainideas.Therefore,theyrepresented19andhaddeveloped20enemies.1.A.soB.eventhoughC.sothatD.asif2.A.unknownB.famousC.popularD.known3.A.acceptsB.looksforwardtoC.refusesD.wins4.A.beB.beingC.beenD.havebeen5.A.aboutB.behindC.asleepD.back6.A.happenedB.appearedC.usedD.wascomeabout7.A.aswellB.eitherC.alsoD.too8.A.somebodyB.everybodyC.anybodyD.nobody29.A.difficultlyB.successfullyC.surprisinglyD.easily10.A.PresidentB.aPresidentC.thePresidentD.thegovernor11.A.forB.againstC.infavorofD.infavorwith12.A.wonB.receivedC.lostD.wasted13.A.votesB.helpC.effortsD.money14.A.ahorseB.amanC.ananimalD.anorganization15.A.laughedB.succeededC.wonD.united16.A.AfterB.SinceC.BeforeD.Because17.A.initselfB.ofitselfC.foritselfD.byitself18.A.oneB.itC.thatD.this19.A.anythingB.nothingC.somethingD.everything20.A.quiteafewB.alotofC.fewD.little2ItisanusualsunnyafternooninthevillageofMidwich,England.Itseemsnot1anyafternooninthevillage,butallofasudden,2andanimalsloseconsciousness.3theyawake,allofthewomenofchild--bearingagehavebecomepregnant(怀孕的).Thisisanepisodefroma1960sciencefictionstory.Thewomeninthestory4birthtochildrenthathavethe5appearance.They6haveblondhairand“strangeeyes”.7thechildrengrow,theyrunaroundthevillageinapack,8thesameclothingandhairstyles,statingateveryone9.10onechildlearnsisalsoknownbytheothersimmediately.Villagersbeginto11theirbeliefthatthechildrenallhaveonemind.Inthisstory,thechildrenare12bysomeunexplainedforcefromouterspace.Butthisstory1340yearsago14predictedthearrivalofarecentmethodofgeneticengineeringcloning.Cloningisthegeneticprocessofproducingcopiesofanindividual.Willthegeneticcopiesofahumanreallyhaveonemindas15inthisstory?Thissituationissostrange16usthatwedonotknowwhatwill17ofit.18withthisnewsituation,peoplehave19tofindouthowto20it.1.A.dislikeB.unlikeC.alikeD.like2.A.peopleB.womenC.menD.youths3.A.ThenB.WhenC.SinceD.And4.A.sendB.makeC.takeD.give5.A.prettyB.sameC.uglyD.funny6.A.everyB.bothC.themselvesD.all7.A.IfB.ForC.AsD.So8.A.havingonB.wearingC.inD.with9.A.lonelyB.bravelyC.impolitelyD.patiently10.A.WhichB.WhileC.WhereD.What11.A.expressB.wonderC.selectD.argue312.A.givenB.producedC.createdD.takenout13.A.writtenB.beingwrittenC.tobewrittenD.writes14.A.sometimesB.anywayC.somehowD.anyhow15.A.describesB.describedC.describeD.describing16.A.forB.atC.withD.to17.A.happenB.occurC.appearD.become18.A.FacedB.ComparedC.CoveredD.Filled19.A.notB.yetC.tillD.though20.A.dowithB.dealwithC.makeD.settle3Workersaren'tallowedtogointoahugeundergroundcomputercenter1theystepuptoamachinethat2aquickpictureofthetinybloodvessels(管)insidetheireyes.Ifthemachinecan't3thepicturewithimagesinitscomputer,theworkeris4bysecurity(安全)guards.Eachpersonhashisownpatternofbloodvesselsinhisorhereyes.Andunlikeakey,thepatterncan'tbe5.Old--fashionedkeysandlocksmaysoonbethingsofthepast.High--techsecuritydevices(装置)arebeing6atmilitarybases,computercenters,nuclearplantsandbanks.Companiesthat7themachinessaythey'llsomedaybeusedinpeople'shomesandcars.Already,aJapanesefirmhasfixeddevicesthat8people'sfingerprintsin360newhomes.Themachinesopenthedoorsonlyforthe9ofthehouses.Thenewsecuritydevicesaresellingwellbecausethievesandspiesaregettingbetteratbreaking10buildingsandcomputersthatareprotectedby11.Since12canstealorcopyafingerprintoreyepattern,thenewmachinesare13.14newmachinesreco