2018-2019学年高中英语 Unit 21 Human Biology 课时跟踪练（一）Warm

1EvaluationWarning:ThedocumentwascreatedwithSpire.Docfor.NET.课时跟踪练(一)Warmup&Lesson1—PrereadingⅠ.阅读理解AAreyousometimesalittletiredandsleepyintheearlyafternoon?Manypeoplefeelthiswayafterlunch.Theymaythinkthateatinglunchisthecauseofthesleepiness.Or,insummer,theymaythinkitistheheat.However，therealreasonliesinsidetheirbodies.Atthattime,abouteighthoursafteryouwakeup,yourbodytemperaturegoesdown.Thisiswhatmakesyouslowdownandfeelsleepy.Scientistshavetestedsleephabitsinexperimentswheretherewasnonightorday.Thepeopleintheseexperimentsalmostalwaysfollowedasimilarsleepingpattern.Theysleptforonelongperiodandthenforoneshortperiodabouteighthourslater.Inmanypartsoftheworld,peopletakenaps(小睡)inthemiddleoftheday.Thisisespeciallytrueinwarmerclimates,wheretheheatmakesworkdifficultintheearlyafternoon.Researchersarenowsayingthatnapsaregoodforeveryoneinanyclimate.Adailynapgivesoneamorerestedbodyandmindandthereforeisgoodforhealth.Incountrieswherenapsaretraditional,peopleoftensufferlessfromproblemssuchasheartdisease.Manyworkingpeoplehavenotimetotakenaps.Thoughdoctorsmayadvisetakingnaps,employersdonotallowit!Ifyoudohavethechance,however,hereareafewtipsaboutmakingthemostofyournap.Rememberthatthebesttimetotakeanapisabouteighthoursafteryougetup.Ashortsleeptoolateinthedaymayonlymakeyoufeelmoretiredandsleepyafterward.Thiscanalsohappenifyousleepfortoolong.Ifyoudonothaveenoughtime,tryashortnap—eventenminutesofsleepcanbehelpful.语篇解读：本文介绍了人们会感到困乏的主要原因及小睡一会儿对身体是有好处的。1．Whydopeoplefeelsleepyintheearlyafternoonaccordingtothetext?A．Theyeattoomuchforlunch.B．Theysleeptoolittleatnight.C．Theirbodytemperaturebecomeslower.D．Theweatherbecomesalotwarmer解析：选C细节理解题。根据第一段的“However,therealreasonliesinsidetheirbodies.Atthattime,abouteighthoursafteryouwakeup,yourbodytemperature2goesdown.”可知选C。2．Ifyougetupat6：30am,whatisthebesttimeforyoutotakeanap?A．About2：30pm.B．About1：30pm.C．About12：30pm.D．About3：30pm.解析：选A细节理解题。根据最后一段的“Rememberthatthebesttimetotakeanapisabouteighthoursafteryougetup.”故选A。3．Whatwouldbethebesttitleforthetext?A．JustforaRestB．AllforaNapC．ASpecialSleepPatternD．TakingNapsinWarmerClimates解析：选B标题归纳题。根据全文内容以及“Ifyoudonothaveenoughtime,tryashortnap—eventenminutesofsleepcanbehelpful.”可知答案为B。B“Hey,howareyoudoing？I'mCourtney.Whatgradeareyouin？What'syourfavoritebook？ElephantandPiggy？Yeah,Igotit.”Ifyouthoughtyou'dwalkedintoalibrarywithagreetinglikethat,youwouldn'tbetoofaroff.Infact,you'veenteredtheworkplaceofCourtneyHolmes,theStorybookBarber.Twoyearsago,Dubuque,Iowa,helditsfirstyearlyBacktoSchoolBash,offeringneedyfamiliesanopportunitytolearnaboutfreeresources(资源)inthecommunity(社区)．Holmesagreedtoparticipate.Saturdaywashisbusiesthaircuttingday,buthechosetodonatehistimeandgivefreehaircutstounderprivilegedkidssothey'dlooksharponthatfirstdayofclasses.Butthenhehadalightbulbmoment(突然醒悟的一瞬)：“Thekidsshouldearntheirfreehaircutbyhavingtoreadabooktome，”Holmessaid.Theideawassopopularthathecontinueditforthenexttwoyears.Five­toten­year­oldboyswouldgrabafavoritebook,settleintothebarberchair,andreadaloudwhileHolmescuttheirhair.Iftheystuttered(结结巴巴地说)overaword,Holmeswastheretohelp.Afterthehaircut,they'dreviewthebook,fromthecharactersandvocabularytothethemes—justlikeinschool,onlymorefun.Holmesadmitshe,too,benefitsfromthefreesnip­and­reads.“Therewasthisseven­year­oldBob,whostruggledthroughhisbook,3stutteringoverwordseventhoughhedidn'thaveastutter，”saidHolmes.Hehadtheboytakethebookhomeandpractice.Whenthechildcamebackafewdayslater，“Hereaditwithnoproblems.Thatinspiresme.”HolmesandhisfamilyhaverecentlymovedfromDubuquetoaChicagosuburb.Whentheygetsettled,heplanstocontinuehisroleastheStorybookBarber.“Thewaytheworldistodaywithgunsandviolence，”hesays，“it'sasafehaven(避风港)forthekids,tocometothebarbershopandreadbooks.”语篇解读：本文是记叙文。美国爱荷华州迪比克市的一名理发师为那些给他阅读故事的孩子们提供免费理发服务。4．Whatdoestheunderlinedword“underprivileged”inParagraph3mean?A．Unruly.B．Poor.C．Intelligent.D．Unusual.解析：选B词义猜测题。由画线词前的“...offeringneedyfamiliesanopportunitytolearnaboutfreeresources”和“donatehistimeandgivefreehaircuts”可知，Holmes选择给贫困的儿童免费理发。由此可推断，underprivileged意为“穷困的，贫穷的”。5．WhatdidHolmessayaboutBob?A．Hefiredhisenthusiasm.B．Hegiftedhimanewbook.C．Hepreferredtoreadalone.D．Hehadalanguagedisability.解析：选A推理判断题。由倒数第二段的描述以及“Thatinspiresme.”可知，这个七岁男孩的变化极大鼓舞了Holmes。6．WhatcanweinferaboutHolmesfromthelastparagraph?A．Heshowedgreatconcernforkids.B．Hefacedseriousmoneyproblems.C．Hehadanexcellentsenseofhumor.D．Hebuiltashelterforhomelesskids.解析：选A推理判断题。由最后一段中的“Thewaytheworldistodaywithgunsandviolence”和“it'sasafehavenforthekids,tocometothebarbershopandreadbooks”可知，Holmes特别关爱孩子们。7．Whatisthebesttitleforthetext?A．GreatmindsinspiregreatdeedsB．Anewwaytomakereadingfun4C．AnunusuallibraryinDubuque,IowaD．Barbergetskidsreadingwithfreehaircuts解析：选D标题归纳题。通读全文可知，本文主要讲述了美国爱荷华州迪比克市的一名理发师为那些给他阅读故事的孩子们提供免费理发服务的故事，D项作标题能概括文章主旨。CInsteadofreachingforthefaketanorheadingforthesun,newresearchsuggeststhebestwaytoobtainahealthyglowistoeatmorefruitandvegetables.“Mostpeoplethinkthebestwaytoimproveskincoloristogetasuntan,butourresearchshowsthateatinglotsoffruitandvegetablesisa