完形填空专项练习：1A"darkhorse"isonethatshowsunexpectedracingspeedandcomesinfirst,1theexpertssaidhehadlittlechanceofwinning.Inpolitics,an2candidate(候选人)forofficewho3anomination(提名)orelectioniscalleda"darkhorse".BritishPrimeMinisterBenjaminDisraelisbelievedto4thefirsttousethephrase.Inhisnovel,"TheYoungDuke",publishedin1831,Disraeldescribedahorseraceandtoldhowthetwotopchoicesfell5,while"adarkhorse"whichhadneverbeenthoughtofrushingpastthegrandstand(看台)inasweepingtriumph.Fromracingtopoliticswasashortstep.Asapoliticalphrase,“darkhorse”6forthefirsttimeinthenationalDemocraticPartycongressof1844.The"darkhorse"wasJamesKnoxPolkwhobecamethellthPresidentoftheUnitedStates.PolkhadbeentheleaderoftheHouseofRepresentativesfrom1835to1839.Hehad7beenGovernorofthestateofTennessee.Butasanationalleader,hewasconsideredapolitical8.Nevertheless,he9wontheDemocraticnominationandwaselected10.MartinVanBurenofNewYork,AformerPresident,seemedsureofgettingthenomination.ButheopposedmakingtheterritoryofTexaspartoftheUnitedStatesasmotherstate.Hewas11itbecausetherewasslaveryinTexas.VanBurendidnotwantanotherslavestateintheUnion.Asaresult,he12supportamongthoseDemocratswhosupportedslavery.Atthe1884congress,VanBurencouldnotgetenoughvotestowinthenomination.Thecongressgotinto13.Therefore,theDemocraticleadersdecidedthattheonlywisethingwouldbetoruna"darkhorse",14whocouldunitetheparty.Andso,oneofthepartyleaders,GeorgeBancroft,proposedthenameofJamesKnoxPolk.Hewon,andtheparty15behindhim,Andhedefeatedhisopponent,HenryClayoftheWhigParty.16the1844congress,the"darkhorse"candidatesbecameanestablishedfactofnationalpoliticallife.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.nobody19.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.Villagersbeginto11theirbeliefthatthechildrenallhave"onemind."Inthisstory,thechildrenare12bysomeunexplainedforcefromouterspace.Butthisstory1340yearsago14predictedthearrivalofarecentmethodofgeneticengineeringcloning.Cloningisthegeneticprocessofproducing...
