小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comUnit2HealthyLifestyle单元素养评估A卷第一部分听力（共两节，满分30分）第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题纸上将该项涂黑。AResearcherssaygettingagoodnight’ssleepisprobablythebesttoolformemoryandlearning.Butshortperiodsofsleepmayhelpourbrainsworkbetter,saysarecentstudyonnapping.Andtakinganapmayalsohelpoldadultsfightoffage-relatedmemoryloss.CDC,anAmericanscientificorganization,foundthat50to70millionAmericanshavechronic(长期的)sleepdisorders.So,someonewhonapsasawayofpayingoffasleepdebtmaynotexperiencethesameimprovementsfromnappingasawell-restedpersonwould.Also,thatonlychildren,theveryold,sickorlazypeoplenapisnotanuncommonopinion.Researchersrecentlylookedatinformationprovidedbynearly3,000Chineseadults,aged65yearsorolder,tolearnifnappingafteramiddaymealhadanyeffectonthementalperformanceofthesubjects.First,theyaskedthepeopleiftheynappedandforhowlong.Then,basedontheiranswers,researchersputthemintofourgroups:non-nappers(0min),shortnappers(≤30mins),moderatenappers(30-90mins),andextendednappers(≥90mins).Nearly60%ofthepeoplesaidtheydidtakeanapafterlunchandthattheirnapslastedanywherefrom30to90minutes.Mostofthesubjectssaidtheynappedforaboutanhour.Thestudyfoundthatpeoplewhotookanhour-longnapdidmuchbetteronmentalteststhanthosewhodidnotnap.Thehour-longnappersalsodidbetterontheteststhanthosewhonappedforshorterandlongerperiods.Inthisstudy,itseemedthatthemosteffectivenaplastedforaboutanhour,butnotmuchlonger.YetDoctorMichaelTwerynotesthatanhour-longnapmaybetoolongforyoung,healthyadults.30minutesisenoughtoremovethepressuretosleepandwillhelpusfeelmoreawake.1.What’sthemainideaofthispassage?A.Gettingagoodnight’ssleepisprobablythebesttoolformemoryandlearning.B.Gettingrestduringthemiddleofthedayhelpsolderadults’brainsworkbetter.C.Takinganaphelpsbabiesandyoungchildrenlearnbetter.D.Nappinghelpsadultsfightoffage-relatedhealthproblems.2.Amongthefollowingpeoplewhonapsafterlunch,whoexperiencesthebestimprovement?A.Anewmotherwithherbabycryingformostofthenight.B.Auniversitystudentstayinguplateforthecomingexams.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comC.Aschoolguardworkingonthenightshift.D.Aretiredteachergoingtobedat10p.m.andrisingat6a.m.3.Anapdoesbetterforhealthyandyoungadults.A.30-minuteB.60-minuteC.70-minuteD.90-minuteBIt’s3o’clockandyou’vebeenhardatwork.Asyousitatyourdesk，astrongdesireforchocolateovercomesyou.Youtrytobusyyourselftomakeitgoaway.Butitdoesn’t.Hereisanothersituation.Perhapsyouarenotfeelingwell.Theonlythingyouwanttoeatisabigbowlofchickensoup，likeyourmomusedtomakewhenyouweresickasachild.Foodcravingsareastrongdesireforaspecifictypeoffood.Andtheyarenormal.ScientistsatthewebsiteHowStuffWorkscomparehungerandcravingsthisway.Hungerisafairlysimpleconnectionbetweenthestomachandthebrain.Theyevencallitsimply“stomachhunger”．Whenourstomachsburnupallofthefoodwehaveeaten，ahormone(荷尔蒙)sendsamessagetoonepartofthebrainformorefood，whichregulatesourmostbasicbodyfunctionssuchasthirst，hungerandsleep.Thebrainthenproducesachemicaltostarttheappetiteandyoueat.Hungerisafunctionofsurvival.Acravingismorecomplex.Itactivates(...