Unit2SectionAGrammar课件-人教版级下册

Unit2

Norules,NoorderSectionAGrammarLet’swatch

andanswer.DoyouknowtherulesinGuangzhouwhenyoutakeasubway？Donoteatordrink.Noeatingordrinking.Youcan’t/mustn’teatordrink.Lookatthesignandwritetherulesforthesign.Howtowritetherulesforthesign?①Do型祈使句Turnright!Standup!Don’tstandup!Don’tturnright!肯定形式：动原(+宾语)

+其他.否定形式：Don’t+动原+其他.Walkinthehallway.

Don’trun!②Be型祈使句Bequiet!Becareful!Don’tbecareful!Don’tbequiet!肯定形式：Be+表语（名词或形容词）+其他.否定形式：Don’tbe+表语（名词或形容词）+其他.

Bepoliteandtreatoneanotherwithrespect.

Don’tbesad!③let型祈使句Let’sgotoschool!Letmehelpyou!Don’tletmehelpyou!Let’snotgotoschool!肯定形式：Let+宾语+动词原形+其他.否定形式：Don’tlet+宾语+动词原形+其他.Let+宾语+not+动词原形+其他.Let’sgo.Letusgo.No+动词-ing/名词!禁止④肯定祈使句②Be型祈使句③let型祈使句①do型祈使句否定祈使句Don’tbe+表语+其他.Don’tlet+宾语+动原+其他.Let+宾语+not+动原+其他.Don’t+动原+其他.Be+表语+其他.动原+其他.Let+宾语+动原+其他.No+动词-ing/名词!③No型祈使句Let’spracticeDon’tbe1.It’sanimportantmeeting.

(not,be)late.2.

(not,make)anynoise!Yourmotherissleeping.3.

(not,talk)and

(read)aloud.4.Thenoticeonthewallsays“

”.(nosmoke)5.

(look)out!Acariscoming.6.

(not,let)thebabycry.7.Let’s

(notsay)anythingaboutit.Don’ttalkDon’tmakereadNosmokingLookDon’tletnotsayLet’spractise.Completethesentenceswithcan,can’t,must,havetoorhasto.1.Ann______doherhomework,soshegoestoaskherteacherforhelp.2.Youdon’t______cleanyourroomtoday.Youcandoittomorrow.3.—______JimspeakEnglish?—No,hecan’t.4.—______Iwearmyschooluniform?—Yes,youmust.5.—Whatdostudents_________inlibrary?—They______keepquiet.can’thavetoCanMusthavetodohaveto3aReadthesentences.Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.情态动词情态动词的用法？Readthesentencesanddiscusswithyourgroupmembersandmakeasummary.一、情态动词can的用法Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.can可表示能力、许可、请求等。其否定形式为can’t/cannot。1.表示能力，意为“能，会”。Thetwinscandraw,buttheycan’tswim.2.表示许可，意为“可以”。Youcan’tswimintheriver.3.表示请求，意为“可以”。CanIborrowyoureraser?Yes,youcan.Can“两不变、两搞定”must表示主观的义务和必要，多译为“必须”。

（个人爱好，个人主观想法） haveto表示客观需要做的事情，多译为“不得不”。（外界客观原因，不得不学）eg:IlikeEnglish,ImuststudyEnglishhard.eg:Idon’tlikeEnglish,butIhavetostudyEnglish.二、情态动词haveto和must的用法No,wecan’t.Wemustkeeptheminourlockers.No,wecan’teatinclass.Wehavetoeatinthedininghall.1.Don’tjumpthequeue.You___________waityourturn.2.I_____feedmydogmanykindsoffood,butI____givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon’tfeelwell?B:Yes,butyou___________tellyourteacheraboutitwhenyou______beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we___________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We___________wearonewhenwe’reinacar.B:Sure.Thanks!3bCompletethesentencesusingcan,haveto/must,orcan’t/mustn’t.haveto/mustcanhaveto/musthavetocan’t/mustn’thaveto/musthaveto/must插队Itis+adj.(forsb)todosth缺席、不在Donotparkhere.Noparking.Youcan’t/mustn’tparkhere.3cLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.Donottakephotoshere.Nophotos.Youcan’t/mustn’ttakephotos.Donotswimhere.Noswimming.Youcan’t/mustn’tswimhere.3cLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.Donotfeedbirds.Nofeeding.Youcan’t/mustn’tfeedbirds.3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.

libraryschooldininghallparkcinemahospitalInthelibrary：

Wemustkeepquiet.Wemustn’tmakenoise.Wecan’t...一、单项选择( )1.—______Iuseyourpen?—Sure.Hereyouare. A.Must B.Need C.May D.Should( )2.You______wearaseatbeltinthecar.It'sthelaw. A.can B.mayC.needD.must( )3.—______youplayfootball? —Yes,Ican.ButI______playitwell. A.Can;can’t B.Do;can’t C.Are;can'tD. Can;mustn't( )4.We______belateforclass.Wemustbeontime. A.don'thaveto B.can’t C.mustn’t D.needn’t( )5.______talkloudlyinthelibrary.Weshouldkeepquiet. A.Do B.Don’t C.Not D.NoCDACBLet’sroleplay.Workingroups,talkaboutschoolrulesandmakeaposter.3d.Ingroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.Park：

Wemustn’tpicktheflower.Wemustn’tlitter.Wecan’twalkonthegrass.Cinema：

Wemustn’ttalkloudly.Wemustn’tusemobilephonesduringthemovie.Wemusttakeawayourtrashafterthemovie.Schooldininghall：

Wemustn’twastefood.Wemustkeepthetabletidy.Wecan’tjumpthequeneforfood.Hospital：

Wemust...二、根据要求改写句子Youmustwearauniformatschool.（改为否定句）Wecanlistentomusicintheclassroom.（改为一般疑问句，并作否