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1、专题二十完形填空之议论文和说明文类1.【2015·广东】完形填空（共15小题；每小题2分，满分30分）阅读下面短文，掌握其大意，然后从1~15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。Howlongcanhumanbeingslive?Mostscientistswhostudyoldagethinkthatthehumanbodyis___1___tolivenolongerthan120years.However,110yearsisprobablythelongestthatanyonecouldhopetolive—
2、—ifheorsheis___2___healthyandlucky.Somescientistsevensaywecanliveaslongas130years!Yet,ourcellssimplycannotcontinuetoreproduce___3___.Theywearout,andasaresult,wegetoldand___4___die.Eventhoughwecan’tliveforever,wearelivinga___5___lifethaneverbefore.In1900,theaverageAmericanlifesp
3、an(寿命)wasonly47years,buttodayitis75years!Whendoesoldagebeginthen?Sixty-fivemaybeout-of-dateasthe___6___linebetweenmiddleageandoldage.Afterall,manyolderpeopledon’tbegintoexperiencephysicalandmental___7___untilafterage75.Peoplearelivinglongerbecausemorepeople___8___childhood.Befo
4、remodernmedicinechangedthelawsofnature,manychildrendiedofcommonchildhood___9___.Nowthatthechancesofdying___10___aremuchlower,thechancesoflivinglongaremuchhigherduetobetterdietsandhealthcare.Onthewhole,ourpopulationisgettingolder.The___11___inourpopulationwillhavelastingeffectso
5、noursocialdevelopmentandourwayoflife.Somepeoplefearsuchchangeswillbefortheworse,whilesomesee___12___,notdisaster,manymenandwomenintheir“goldenyears”arehealthy,stillactive,andyoungin___13___ifnotinage.Asthesocietygrowsold,weneedthe___14___ofouroldercitizens.Withlonglivesaheadoft
6、hem,theyneedto___15___activeanddevoted.1.A.designedB.selectedC.improvedD.discovered2.A.completelyB.generallyC.apparentlyD.extremely3.A.rapidlyB.harmlesslyC.endlesslyD.separately4.A.eventuallyB.hopelesslyC.automaticallyD.desperately高考学习网－中国最大高考学习网站Gkxx.com
7、我们负责传递知识！5.A.busierB.l
8、ongerC.richerD.happier6.A.finishingB.guidingC.waitingD.dividing7.A.stressB.damageC.declineD.failure8.A.surviveB.enjoyC.rememberD.value9.A.problemsB.fearsC.worriesD.diseases10.A.poorB.youngC.sickD.quiet11.A.changesB.recoveryC.safetyD.increases12.A.dreamsB.chancesC.strengthsD.cho
9、ices13.A.mindB.appearanceC.voiceD.movement14.A.protect
