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1、B1记叙文B1[2016·北京卷]阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项.AraceagainstdeathItwasacoldJanuaryin1925inNome,Alaska.Thetownwascutofffromtherestoftheworldduetoheavysnow.Onthe20thofthatmonth,DrWelch__36__asickboy,Billy,andknewhehaddiphtheria,adeadlyinfectious(传染的)diseasemainlyaf
2、fectingchildren.ThechildrenofNomewouldbe__37__ifitstruckthetown.DrWelchneededmedicineassoonaspossibletostopotherkidsfromgettingsick.__38__,theclosestsupplywasover1,000milesaway,inAnchorage.HowcouldthemedicinegettoNome?Thetown's__39__wasalreadyfullofice,soitcouldn'tcomeby
3、ship.Carsandhorsescouldn'ttravelonthe__40__roads.Jetairplanesandbigtrucksdidn'texistyet.__41__January26,Billyandthreeotherchildrenhaddied.Twentymorewere__42__.Nome'stownofficialscameupwitha(n)__43__.Theywouldhavethemedicinesentby__44__fromAnchoragetoNenana.Fromthere,dogs
4、led(狗拉雪橇)drivers—knownas“mushers”—would__45__ittoNomeinarelay(接力).TheracebeganonJanuary27.Thefirstmusher,Shannon,pickedupthemedicinefromthetrainatNenanaandrodeallnight.__46__hehandedthemedicinetothenextmusher,Shannon'sfacewasblackfromtheextremecold.OnJanuary31,amushernam
5、edSeppalahadto__47__afrozenbodyofwatercalledNortonSound.Itwasthemost__48__partofthejourney.NortonSoundwascoveredwithice,whichcouldsometimesbreakupwithoutwarning.Ifthathappened,Seppalamightfallintotheicywaterbelow.Hewould__49__,andsowouldthesickchildrenofNome.ButSeppalama
6、deitacross.AhugesnowstormhitonFebruary1.AmushernamedKaasenhadtobravethisstorm.Atonepoint,hugepilesofsnowblockedhis__50__.Hehadtoleavethetrail(雪橇痕迹)togetaroundthem.Conditionsweresobadthatitwasimpossibleforhimto__51__thetrailagain.TheonlyhopewasBalto,Kaasen'sleaddog.Baltop
7、uthisnosetotheground,__52__tofindthesmellofotherdogsthathadtravelledonthetrail.IfBaltofailed,itwouldmeandisasterforNome.Theminutespassedby.Suddenly,Baltobeganto__53__.Hehadfoundthetrail.At5：30amonFebruary2,Kaasenandhisdogs__54__inNome.Withinminutes,DrWelchhadthemedicine.
8、Hequicklygaveittothesickchildren.Allofthemrecovered.Nomehadbeen__55__．36.A.examinedB.warnedC.interviewe
