2019-2020年高考英语大一轮复习Unit4Pygmalion课时作业新人教版选修(I)

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1、2019-2020年高考英语大一轮复习Unit4Pygmalion课时作业新人教版选修(I)Ⅰ.阅读理解Weighingtoomuchcandamageyourhealth，andobesityisagrowingproblemforbothkidsandadultsaroundtheworld.Sleepmightbeoneanswertotheproblem.Anewstudyhasfoundthatelementaryschoolstudentswhoslepttoolittleweremorelikelytogainpounds.Past

2、studieshaveshownalinkbetweensleepinglessandweighingmore，butscientistshavehadatoughtimedetermining“which_came_first，the_chicken_or_the_egg，”saysJulieC．LumengoftheUniversityofMichiganinAnnArbor.Inotherwords，ithasn'tbeenclearwhetherkidswhoweightoomuchhavetroublesleeping，orwhethe

3、rsleepinglessleadstoweightgain.Bothscenarios(可能出现的情况)seemedequallypossible.Togetabetterideaofwhichcauseswhich，Lumengandhercolleaguesinterviewedtheparentsof785thirdgradersfromaroundtheUnitedStates.Theparentsansweredquestionsabouthowwelltheirkidssleptthatyear.Threeyearslater，th

4、eparentsansweredthesamequestions.Bysixthgrade,18percentofkidsinvolvedinthestudywereobese.Thescientistsfoundnorelationshipbetweenweightandthestudents'raceorgender.Italsodidn'tmatterhowstricttheirparentswere，orwhethertheywereboysorgirls.Obesitystruckallofthesegroupsequally.Inst

5、ead，sleepseemedtobethekeyfactor.Overthe3yearsofthestudy，thechildrenaveragedahealthy9.5hoursofsleepanight.Somekids，however，sleptalotmore—orless—thanothers.Forthesixthgraders，everyhourofsleepabovethe9.5—houraverage—waslinkedtoa20percentlowerriskofbeingobese.Sleepappeareddoublyi

6、mportantforthethirdgraders.Everyextrahourofsleeptheygotwaslinkedtoa40percentdropinobesity.1．WhatdoestheunderlinedsentenceinParagraph2imply?A．Scientistshavefoundtheexactcausesofchildren'sobesity.B．Thereisalwayssomethingdifficulttounderstandthroughtheory.C．Thecauseeffectrelatio

7、nshipbetweenweightandsleepisn'tclear.D．Aperson'sweighthassomethingtodowiththeamountofhissleep.2．Whatdidtheinterviewfindout?A．9.5hoursofsleepanightisenoughforchildren.B．Themoreachildsleeps，thehealthierhewillbe.C．Sixgradersneedmuchmoresleepthanthirdgraders.D．One'sraceorgenderha

8、snothingtodowithhisweight.3．Howdoestheauthordevelopthepassage?A．Byli