Unit2SectionA4a-4c（课件）人教版八年级英语下册

Thefirstwealthishealth.八年级下册英语人教版第三课时4a-4dStayHealthyStayHealthyStayHealthySectionA

Whatshouldwedowhenwedon’tfeelwell?Unit2TeachingobjectivesLearnnewwordsandphrases:knife,clear,pain,what’smore,brightness,environment,cross.Usereflexivepronounstorefertothesubjectinasentence.12What’sthematterwithher?Doesshehaveafever?Doesshehaveatoothache?Doesshehaveasorethroat?Doesshehaveabackache?Whatshouldherdo?What’swrong?Iatetoomuchlastnight.Nowmystomachaches.Youshouldn’teatsomuchnexttime.What’sthematter?Ihaveareallybadtoothache.YoushouldseethedentistandgetanX-ray.Youcouldeatsomesoftfoodfornow.Howdidyouhurtyourself?IhurtmyselfwhenIfelloffmybike.Bemorecarefulnexttime.Ifwearenotcareful,wecaneasilyhurtourselves.

Readthesentences.Underlinethemodalverbsforadviceandcirclethereflexivepronouns.4a▶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的用法情态动词意义用法例句

could可以用于提出建议，比can语气更委婉Youcouldaskyourteacherforadvice.你可以向老师寻求建议。能；会表示过去的能力IcouldspeakEnglishattheageofsix.我六岁时就会说英语了。能；可以用于提出要求或请求—Couldyoupleaselendmeyourbike?请把你的自行车借给我好吗?—Sure./Sorry,I’mafraidnot.当然可以。/抱歉，恐怕不行。情态动词意义用法例句

could用于请求许可—CouldIuseyourbike?我可以用你的自行车吗?—Yes,ofcourseyoucan./Sorry,youcan’t.好的，当然可以。/对不起，你不可以。可能表示推测Youcouldberight,butI’mnotsure.你可能是对的，但我不确定。能；可以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）们自己用法反身代词与它所指的名词或代词形成互指关系，在人称或数上保持一致。（1）作动词（短语）的宾语或介词的宾语ShetaughtherselfEnglish.她自学了英语。Theyshouldlearntolookafterthemselves.他们应该学着照顾自己。Thelittleboywenttoschoolbyhimself.那个小男孩自己去上学了。（2）作同位语反身代词常用作主语或宾语的同位语，用于强调。Hehimselfbuiltthehouse.他自己建造了那座房子。YoushouldgoandaskTomhimself.你应该去问问汤姆本人。（3）作表语反身代词可放在be，feel，seem，look等系动词后作表语，用来描述身体或精神方面的感觉或状态。Justbeyourself.做好你自己。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相信自己用括号内所给单词的适当形式填空。1.Whenwereadbooksinthelibrary,weshould_______(keep)

quietthere.2.It’scoldtoday.Iplantobuyacupofhotcoffeetowarm______(I).3.We________(can)

seethestarsclearlyfromouryardwhenwelivedinthecountryside.4.Thesummervacationiscominganditisagoodtimetoimprove

________(we)

instudies.5.Howbeautifulthenewly-builtparkis!

Visitorscanenjoy_________

(they)

whencomingthere.keepmyselfcouldourselvesthemselvesPractice按要求完成句子，每空一词（含缩略词）。1.Lisashouldputsomemedicineonthecut.（改为否定句）Lisa________________anymedicineonthecut.2.Theycouldplantsomeflowersinthegardentomakeit

beautiful.（改为一般疑问句并作肯定回答）—________they________anyflowersinthegardentomakeitbeautiful?—Yes,__________________.shouldn’tputCouldplanttheycould/can3.Youshouldarriveattheparkat8:00a.m.(对画线部分提问)________________I________atthepark?4.Sallycoulddocalligraphyverywelllastyear.(对画线部分提问)________________Sally________verywelllastyear?5.当你自己写不完这个故事时，为什么不向老师求助呢？(汉译英)Whynotaskyourteacherforhelpwhenyoucan’tfinishwritingthestory_________________?WhenshouldarriveWhatcoulddobyyourself4bCompletethesentencesusingthecorrectreflexivepronouns.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’tshouldcouldcouldDoyouhaveasorethroat/badcold/...?Didyoufallfromyourbike/cutyourself/...?Youshould/could/shouldn’t...Actoutanillnessorinjury.Havetheothersguesswhatitisandgiveadvice.4dNameProblemAdviceLiuPengfalldowngohomeandrestSummary情态动词should和couldshould的用法用于委婉地提出建议或劝告，意为“应该”用于表达义务或责任，意为“应该；应当”表示推测，意为“应该会；可能”用于责备、命令或要求，语气比较强烈。用于征求对方的意见，意为“应该；应当”could的用法表示建议。用于向对方委婉地提出请求或征求对方的许可。co