Unit4 Don't eat in class. Section A Grammar 2a-2c-人教新課標七年級英語下冊

Unit4Don'teatinclass(grammarfocus-3c)

GrammarFocus.我們可以如何表達規(guī)則？祈使句情態(tài)動詞GrammarFocus.祈使句如何表達規(guī)矩？Don't+V原....GrammarFocus.如何使用情態(tài)動詞表達規(guī)矩？主語+must+V原主語+haveto+V原主語+can't+V原GrammarFocus.haveto在句法上與其他情態(tài)動詞有何區(qū)別？haveto有人稱和數(shù)的變化。haveto/hastoLet’sthinkandtalk.

_____wearrivelateforclass?

No,we____.We____beontime._____arrivelateforclass.CanDon’tcan’tmustCanDon’tcan’tmustLet’sthinkandsay._____weruninthehallways?

No,we_____.We_____walk._____runinthehallways.CanDon’tcan’tmustCanDon’tcan’tmustLet’sthinkandsay._____welistentomusicinclass?No,we_____.We_____listentoourteacher._____listentomusicinclass.CanDon’tcan’tmustCanDon’tcan’tmustLet’sthinkandsay._____wefight?

No,we_____.We_____befriendlytoeachother._____fight.

CanDon’tcan’tmustCanDon’tcan’tmustLet’sthinkandsay._____wesleepinclass?

No,we_____.We_____listentotheteachercarefully._____sleepinclass.

CanDon’tcan’tmustCanDon’tcan’tmustLet’sthinkandsay._______________inclass?

No,__________._______________inthedininghall.__________inclass.

CanDon’tcan’tmustCanDon’tyoumustweeatcan’tYoueateat1.不要在樓道里跑。_______________________2.不要打架。_______________3.有什么規(guī)則？__________________________4.我們必須按時上課。__________________________閱讀GrammarFocus，完成下列句子。Don’tfight.Don’truninthehallways.Whataretherules?Wemustbeontimeforclass.5.我們可以在教室里吃東西嗎？

_____________________________6.不能。但我們可以在餐廳里吃東西。____________________________________________________________7.我們可以在上課的時候帶帽子嗎？___________________________Canwewearahatinclass?No,wecan’t,butwecaneatinthedininghall.Canweeatintheclassroom?8.他在學(xué)校里必須穿校服嗎？_________________________________9.是的，必須。/不，不必。_______________________________10.你們必須做什么？_______________________________11.在圖書館里我們必須保持安靜。

________________________________Yes,hedoes./No,hedoesn’t.Doeshehavetowearauniformatschool?Whatdoyouhavetodo?Wehavetobequietinthelibrary.haveto“必須、不得不”肯定句：我們必須要做作業(yè)Wehavetodohomework.否定句：...don’t/does't

have

to...你可以不用戴帽子。Youdon'thavetowearahat.一般疑問句：do/does+主語＋have

to...他必須要要穿校服嗎？Doeshehavetowearauniform？=needn’t...一、祈使句的肯定式1.以行為動詞原形開頭，Do型。e.g.Comehere.到這兒來。2.以動詞be開頭，Be型。e.g.Bequiet,please.請安靜。3.以Let開頭，Let型。e.g.Let’sgo!咱們走吧!

二、祈使句的否定式否定式都可以在句首加don’t。不要坐在這兒。Don’tsithere.別遲到。Don’tbelate.不要讓他走。Don’tlethimgo.注意：“No+名詞/doing形式”表示禁止或規(guī)勸，常用于公共場所。禁止拍照！Nophotos!禁止吸煙！Nosmoking！

Let’spractice.Lookatthepicturesin3aandanswerthequestions.12341.Whatdothepicturestellus?2.Wherecanyouseethesesigns?3.Canwetalkloudly/eat/listentomusic/takephotosinthelibrary?Let’spractice.Writetherulesfortheschoollibrary.1234

LibraryRules1.____________________________2.____________________________3.____________________________4.____________________________Don’ttalk.Don’teatinthelibrary.Don’tlistentomusicinthelibrary.Don’ttakephotosinthelibrary.拓展Writealettertoyourparentsabouttherulesathome.Letthemknowyourideas.Forexample：Befriendly.Savewater.Don’tgooutatnight.Don’teatinthebed.Don’tsleeptoolate.Don’twastemoney.Don’ttalkloudly.Don’tkeepanimals.Don’ttalkloudlyonthephone.Don’twatchTVlateatnight.CleanthebedroomonSaturdays.Don’tgetuplateonSundays.Don’ttalkloudlyatnight.Dearparents,

Iknowyoulovemeverymuch.NowI’vegrownup(長大).

Weshouldrespect(尊重)eachother.Ihavesomesuggestions(建議)foryou._____________________________________________________________________________________________________________________

Willyoulistentome?2.Eat?(he/haveto/inthedininghall)Q:________________________________?A:_____________3.Listentomusic?(we/can/inthehallways)Q:________________________________?A:_____________4.Wearahat?(we/can/intheclassroom)Q:_____________________________?A:____________Thenanswerthequestions.Yes,hedoes.DoeshehavetoeatinthedininghallCanwelistentomusicinthehallwaysNo,wecan’t.CanwewearahatintheclassroomNo,wecan’t.I.將下面的句子改為祈使句，每空一詞。1.Youcanstandup.__________,please.2.Icanhelpyou._____me______you.3.Youcan’ttalkinclass.____________inclass.4.Youcan’tbelateforclass.__________lateforclass.

StandupLethelpDon’ttalkDon’tbe1.--Canthestudentseatintheclassroom?(作否定回答)--No,___________.2.TomhastoplaybasketballeveryFriday.(改為一般疑問句)_____Tom________playbasketballeveryFriday?theycan’tDoes

havetoII.按要求完成句子，每空一詞。3.Youcan’twea