Unit2StayHealthy-第3课时（SectionA4a-4d）课件人教版英语八年级下册

人教版英语8年级下册培优备课精做课件第3课时（SectionA4a-4d）Unit2StayHealthy授课教师：Home.

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2026年3月28日4aReadthesentences.Underlinethemodalverbsforadvice.What’swrong?Iatetoomuchlastnight.Nowmystomachaches.Youshouldn’teatsomuchnexttime.What’sthematter?Ihaveareallybadtoothache.YoushouldseethedentistandgetanX-ray.Youcouldeatsomesoftfoodfornow.Howdidyouhurtyourself?IhurtmyselfwhenIfelloffmybike.Bemorecarefulnexttime.Ifwearenotcareful,wecaneasilyhurtourselves.PresentationWhatrulescanyoufindout?▶情态动词should，could后接动词原形，

无人称和数的变化。▶should，could不能单独作谓语，只能和

其他动词一起构成谓语。▶否定形式是在其后加not；变为一般疑

问句时，将should，could提到主语前。情态动词should和could的用法情态动词should和could的用法should的用法（1）用于委婉地提出建议或劝告，意为“应该”▶Youshouldhavethreemealsadayontime.你应该按时吃一日三餐。（2）用于表达义务或责任，意为“应该；应当”▶Eachofusshouldstudyhard.

我们每个人都应该努力学习。（3）表示推测，意为“应该会；可能”▶Doingcalligraphyshouldbeinteresting.

练习书法应该会很有趣。（4）用于责备、命令或要求，语气比较强烈。▶Youshouldn’tbescaredofmakingmistakes.

你不应该害怕犯错。（5）用于征求对方的意见，意为“应该；应当”，常用于主语是第一人称的疑问句中。▶Whatshouldwedonow?我们现在应该做什么呢？should的用法could的用法（1）表示建议。▶Youcouldeatouttonight.今晚你可以上馆子吃饭。（2）用于向对方委婉地提出请求或征求对方的许可。▶Couldyoutakeouttherubbish?你能倒垃圾吗？（提出请求）▶CouldIgoonanoutingwithyou?

我可以和你一起出外游玩吗？（征求对方许可）could的用法（3）could为can的过去式，表示能力。▶Hecouldrideabikeattheageoffive.

他五岁时就会骑自行车。（4）表示推测，意为“可能”。▶ThebookcouldbelongtoLilybecauseshelikesreadingbooks.那本书可能是莉莉的，因为她喜欢读书。一、根据所给提示完成单词。(7分)1.Whenyoumakeabananamilkshake,youcanusek________tocutupthebananas.2.［扬州中考改编］Withhardworkand____________ (清晰的)plans,youwillbecomesuccessfulinyourstudy.3.Hehasa________(疼痛)inhisshoulder,sohecan’tliftheavythings.nivesclearpain4.Inwinter,the______________(亮度)ofwhitesnowcansometimeshurtyoureyes.5.［达州中考改编］—Iffewerpeopledrivecars,therewillbelessairpollution. —Ithinkso.Ihopeour____________(环境)willbebetterandbetter.6.Wemustwaitforthegreenlightbeforewec________theroad.brightnessenvironmentross熟词生义pain写出画线词的汉语意思“Nopain,nogain.”isafamoussaying.____________付出；辛苦4aReadthesentences.Circlethereflexivepronouns.What’swrong?Iatetoomuchlastnight.Nowmystomachaches.Youshouldn’teatsomuchnexttime.What’sthematter?Ihaveareallybadtoothache.YoushouldseethedentistandgetanX-ray.Youcouldeatsomesoftfoodfornow.Howdidyouhurtyourself?IhurtmyselfwhenIfelloffmybike.Bemorecarefulnexttime.Ifwearenotcareful,wecaneasilyhurtourselves.Whatrulescanyoufindout?反身代词反身代词反身代词是一种表示反射或强调的代词。有人称和数之分。它由第一人称、第二人称形容词性物主代词和第三人称人称代词宾格形式在词尾加-self或-selves构成。具体见下表：数第一人称第二人称第三人称单数myself我自己yourself你自己himself他自己herself她自己itself它自己复数ourselves我们自己yourselves你们自己themselves他（她、它）们自己短语hurtoneself伤到自己teachoneself/learnbyoneself自学enjoyoneself过得愉快byoneself独自；单独helponeself(to)...随便吃/喝……cometooneself苏醒dressoneself给自己穿衣服lookafteroneself照顾自己talktooneself自言自语believeinoneself相信自己二、选择合适的词填空。(6分)7.Shh...!Thisisalibrary.You________(should/could)keepyourvoicedown.8.Youlooktootired.You__________(shouldn’t/should)restand__________(shouldn’t/should)worktoohard.9.—Maria,youshouldbelievein______________(yourself;you).That’sthesecretofsuccess. —OK,Iwill.shouldshouldshouldn’tyourself10.［黄山期末］—Sorry,Idroppedsomewateron__yourbook. —Nevermind.It’sjustabook,andit____________(can;can’t)dry.11.Itrainedsoheavilythatwe________(could/should)hardlyseetheroadinfrontofus.cancould4bCompletethesentencesusingthecorrectreflexivepronouns.1.Thegirlcleanedthecutonherarmby__________.2.Becarefulwhenyou’reusingtheknife!Don’tcut__________.3.Aftertakingthesafetytraining,wecanenjoy__________inthemountains.4.MrLiuknowshowtotakecareofhishealthbecauseheusedtobeadoctor_________.5.Thestudentsareyoung,buttheyknowhowtoprotect_________.6.Herclearestmemoryisnotoftherace_________,butthe

terriblepaininherlegsthenextday.herselfyourselfourselveshimselfthemselvesitself4cCompletethepassagewithshould,shouldn’t,orcould.Mobilephonesareuseful,butyou_______usethemwisely.Toprotectyoureyes,every20minutes,you_______restyoureyesandlookatsomethingfaraway.What’smore,you_______changeyourscreen’sbrightnesstotryandmatchyourenvironmentandmakethewordsonthescreenbigger.Ofcourse,you________lookatyourphonejustbeforeyougotobed,andyoucertainly

________lookatitwhenyoucrosstheroad!Infact,you_______avoidusingyourphonetoooften.You_______listentomusicinsteadofwatchingvideos.You_______alsotalktoyourfriendsinsteadofsendingthemmessages.shouldshouldcouldshouldn’tshouldn’tshouldcouldcould三、用所给词的适当形式填空。(7分)12.［连云港中考］Daniellikeskeepingartdiaries.Inthisway,hecanexpress____________(he)throughdrawingorpainting.13.—Thecatwashes__________(it)everyday.It’ssolovely.—Yes,anditlooksveryclean.14.Whenmyparentswentawayonbusiness,Ilookedafter________(I).himselfitself

myself15.Taichi,partofChineseculture,isakindofexercisewhichhelpspeopleimprove__________(they)inhealth.16.—Whowillcookdinnertonight? —Let’sdoit________(we).MomandDadaretootired.17.—IsawyourgrandmausingDouyinonthephone.Whotaughther? —Nobody.Shetaught________(she).themselvesourselvesherself

18.—Didyouenjoy__________(you)atthepartylastnight? —Yes,wedancedandplayedgamestogether!yourselves4dActoutanillnessorinjury.Havetheothersguesswhatitisandgiveadvice.Doyouhaveasorethroat/badcold/...?Didyoufallfromyourbike/cutyourself/...?Youshould/could/shouldn’t...Production同伴合作或小组合作完成ActingPronunciationFluencyPossibleversionDoyouhaveasorethroat?No,Idon’t.Didyoufallfromyourbikeyesterday?Yes.Myrightleghurts.YoushouldgetanX-rayandhaveagoodrestforafewdays.P154aIfelloffmybike.fall/fɔːl/1（动词）掉落；跌倒过去式：fell

falloff从……掉下来falldown跌倒；倒塌（动词）进入（某状态）过去式：fellfallasleep入睡fallinlovewith爱上fallinto落入（名词）（美式）秋天inthefall/autumn在秋季23P154c…tryandmatchyourenvironment…match/mætʃ/1（动词）适应；符合

Chameleonsmatchtheenvironmentbychangingtheircolour.变色龙通过改变体色来适应环境。2（动词）相配

Ineedatietomatchmysuit.我需要一条领带来配我的西装。3（名词）比赛；竞赛

afootballmatch一场足球比赛P154c…insteadofsendingthemmessages.辨析：insteadof与instead两者都可意为“代替”。区别如下：insteadof介词短语位于句首或句中，后接名词、代词或动词-ing形式instead副词常位于句首或句末，修饰整个句子串记：Weshouldn’tuseplasticbags.Instead,weshouldtakeourownbags.Besides,

weshouldalsowalkinsteadofdrivingtothesupermarket．P15边学边记lookat看 faraway远处what’smore更有甚者；更为重要的是ofcourse当然 gotobed上床睡觉crosstheroad过马路infact确切地说；实际上四、按要求完成句子，每空一词。(11分)19.Youshouldasktheoldmanforhelp.(改为否定句) You________asktheoldmanforhelp.20.［重庆模拟］Ninashouldtakemoreexercisetokeephealthy.(对画线部分提问) ________________________________tokeephealthy?shouldn’tWhatshouldNinado21.骑车时小心点，不然你可能会摔下来。(汉译英) Becarefulwhenyouridethebike,oryou________________________it.22.水在我们日常生活中很重要。更重要的是，没有水我们无法生存。(汉译英) Waterisimportantinourdailylife.________________,we________livewithoutwater.mayfalloffWhat’smorecan’t五、短文填空。(20分)Asastudent,Ihavelearnedthatstayinghealthyisthekeytoahappylife.Therearemanythingswecandoto23.________illnessesandkeepourbodiesstrong.ill,if,run,sore,hurt,pain,avoid,suffer,bright,medicineavoidLastmonth,Ihada24.________throat.Itwassuchgreat25.________thatIcouldn’tsayaword.I26.________alotfromthissmallillness.That’swhenIrealizedhowimportantitwastotakecareofmyself.Tostayhealthy,weshouldkeepourlivingspacesclearandtidy.ill,if,run,sore,hurt,pain,avoid,suffer,bright,medicinesorepainsufferedAcleanenvironmentmakesusfarawayfrom27.________.Also,weneedtoeathealthyfoodlikefruitsandvegetables.Theygiveusenergyandhelpourbodiesfightanyhealthyproblems.ill,if,run,sore,hurt,pain,avoid,suffer,bright,medicineillnessesRegularexerciseisamust,too.28.________,jumping,orplayingballgamesnotonlymakesusfitbutalsoseetheworld29.________.Whenweexercise,weshouldbecarefulnottoget30.________orfall,whichcancauseinjuries(受伤).ill,if,run,sore,hurt,pain,avoid,suffer,bright,medicineRunningbrightly

hurtMostimportantly,weshouldlistentoourbodies.31.________somethingdoesn’tfeelright,weshouldfollowthedoctor’sadvice.Rememberdon’ttake32.________withoutseeingthedoctor.Bydoingthesethings,wecanenjoygoodhealthandliveourlivestothefullest.ill,if,run,sore,hurt,pain,avoid,suffer,bright,medicineIfmedicine六、任务型阅读。(10分)根据短文，完成