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ID:31186175
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时间:2019-01-07
《高考英语一轮复习构想unit3inventorsandinventions课时作业新人教版选修8》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、为深入贯彻落实党的十九大精神和习近平总书记的重要指示精神,保障人民安居乐业、社会安定有序、国家长治久安、进一步巩固党的执政基础,束城镇深入贯彻全市扫黑除恶会议精神,强化措施,深入扎实开展扫黑除恶专项斗争 Unit3 InventorsandinventionsⅠ.阅读理解A(2017·广西重点高中考试)Weighingtoomuchcandamageyourhealth,andobesityisagrowingproblemforbothkidsandadultsaroundtheworld.Sleepmightbeoneanswertotheproblem.
2、Anewstudyhasfoundthatelementaryschoolstudentswhoslepttoolittleweremorelikelytogainpounds.Paststudieshaveshownalinkbetweensleepinglessandweighingmore,butscientistshavehadatoughtimedetermining“which_came_first,_the_chicken_or_the_egg,”saysJulieC.LumengoftheUniversityofMichiganinAnnArb
3、or.Inotherwords,ithasn'tbeenclearwhetherkidswhoweightoomuchhavetroublesleeping,orwhethersleepinglessleadstoweightgain.Bothscenarios(可能出现的情况)seemedequallypossible.Togetabetterideaofwhichcauseswhich,Lumengandhercolleaguesinterviewedtheparentsof785thirdgradersfromaroundtheUnitedStates.
4、Theparentsansweredquestionsabouthowwelltheirkidssleptthatyear.Threeyearslater,theparentsansweredthesamequestions.Bysixthgrade,18percentofkidsinvolvedinthestudywereobese.Thescientistsfoundnorelationshipbetweenweightandthestudents'raceorgender.Italsodidn'tmatterhowstricttheirparentswe
5、re,orwhethertheywereboysorgirls.Obesitystruckallofthesegroupsequally.Instead,sleepseemedtobethekeyfactor.Overthe3yearsofthestudy,thechildrenaveragedahealthy9.5hoursofsleepanight.Somekids,however,sleptalotmore-orless-thanothers.Forthesixthgraders,everyhourofsleepabovethe9.5houraverag
6、ewaslinkedtoa20percentlowerriskofbeingobese.Sleepappeareddoublyimportantforthethirdgraders.Everyextrahourofsleeptheygotwaslinkedtoa40percentdropinobesity.【解题导语】 本文是说明文。一项新的研究发现,睡眠过少的小学生更容易发胖。1.WhatdoestheunderlinedsentenceinParagraph2imply?A.Scientistshavefoundtheexactcausesofchildr
7、en'sobesity.B.Thereisalwayssomethingdifficulttounderstandthroughtheory.C.Thecauseeffectrelationshipbetweenweightandsleepisn'tclear.D.Aperson'sweighthassomethingtodowiththeamountofhissleep.答案与解析:C 考查句意理解。画线句表示的字面意思是“先有鸡还是先有蛋”,结合上下文的内容可知,文章引用这句话是为了表明“是睡眠少导致了肥胖还是肥胖导致了睡眠变少”这个问题还没有定论。下文的
8、“Inotherwords,ithas
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