2024学年上海高一上学期期末统考卷与四校八大题型精品汇编3：完形填空（解析版 ）.docx

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高一上学期期末统考卷四校八大题型分层汇编3：完形填空

（解析版）

PartA：统考卷

试题1：黄浦区2021学年高一上学期期终考卷英语试卷

Directions:ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA,B,CandD.Fillineachblankwiththewordorphrasethatbestfitsthecontext.

Nothingseemsmoreinevitablethanaginganddeathnoteventaxes.Everyplant,animalandpersonyouhaveeverseenwill____26____die.Butsomerecentresearchsuggeststhatagingasweknowitmaynotbeinevitable.Indeed,asour____27____ofitgrows,agingcanbeviewednotasanunchangeablerealityfromwhichthereisnoescape,butastheproductofbiologicalprocessesthatwemaybeableto____28____someday.

Wealreadyknowthatsomeanimalsdonotseemtoage.Manycold-wateroceanfishandsomeamphibians(两栖动物)never____29____afixedsize;theycontinuetogrowbigger,tobeabletoreproduceandtoliveuntilsomethingkillsthem.Whatthese____30____seemtobetellingusisthatsomethingintheirgenesandpossiblyinourscontrolsthe____31____ofaging,andthatagingisnotthefateofeverylivingthing.

____32____thehistoryoflifeonearth,oneofthemostcommondifficultiesthatanimals(andtheircells)havefacedhasbeenalackoffood.About70yearsago,scientistsdiscoveredthatwhenanimalsareforcedtoliveon30to40percentfewercaloriesthantheywould____33____eat,somethingunusualhappens:theybecome____34____tomostage-relateddiseasescancer,heartdisease,diabetes(糖尿病)andlive30to50percentlonger.Restrictingcalories_____35_____aging.Butwhatarethe_____36_____genesthatpreservevitality(生命力)andstarveoff（抑制）diseases?

About15yearsago,armedwithpowerfulnewmolecular-researchtechniques,afewscientistsbeganto_____37_____thesegeneticphenomena.TheyhavediscoveredthatagenecalledSir2whichispresentinallanimals,includinghumansis_____38_____forthehealthbenefitsofcalorierestriction,pe