Unit4SectionA(3a-3c)课件 人教版七年级英语下册.ppt

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1、SectionAPeriod2(3a-3c)人教版七年级英语下册 Unit4Learnhowtousehave to/must,canand cant.1.不要在楼道里跑。不要在楼道里跑。_2.不要打架。不要打架。_3.有什么规则有什么规则?_4.我们必须按时上课我们必须按时上课._翻译下列句子。翻译下列句子。Dontfight.Dontruninthehallways.Whataretherules?Wemustbeontimeforclass.5.我们可以在教室里吃东西吗？我们可以在教室里吃东西吗？_6.不能。但我们可以在餐厅里吃东西。不能。但我们可以在餐厅里吃东西。_7.我们可以在上课的

2、时候带帽子吗？我们可以在上课的时候带帽子吗？_Canwewearahatinclass?No,wecant,butwecaneatinthedininghall.Canweeatintheclassroom?8.他在学校里必须穿校服吗？他在学校里必须穿校服吗？_9.你们必须做什么？你们必须做什么？_10.在图书馆里我们必须保持安静。在图书馆里我们必须保持安静。_Doeshehavetowearauniformatschool?Whatdoyouhavetodo?Wehavetobequietinthelibrary.LibraryRules1.Donttalk.2._3._4._ Writet

3、herulesfortheschoollibrary.Dontlistentomusic.Donteatordrink.Donttakephotos.3a1.Bequiet?(she/haveto/inthelibrary)Q:Doesshehavetobequietinthelibrary?A:Yes,shedoes.Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.3b2.Eat?(he/haveto/inthedininghall)Q:_?A:_3.Listentomusic?(we

4、/can/inthehallways)Q:_?A:_4.Wearahat?(we/can/intheclassroom)Q:_?A:_Yes,hedoes.DoeshehavetoeatinthedininghallCanwelistentomusicinthehallwaysNo,wecant.CanwewearahatintheclassroomNo,wecant.Atmydreamschool,wedonthavetocometoschooleveryday.Wecaneatinclass Makeupfivecoolrulesforyourdreamschool.Shareyourru

5、leswiththeclass.YourclassmatesvotefortheCoolestSchool!3cWedonthavetowearschooluniforms.WecanlistentomusicinlassWecaneatintheclassroom.Wedonthavetodohomework.Atmydreamschool,wedonthavetocometoschooleveryday.Wecaneatintheclassroom.Wecanlistentomusicinclass.Wedonthavetodohomework.Wedonthavetowearschool

6、uniformsatschool.祈使句是用来表示请求、命令、叮嘱、号召或者劝告等的句子,其主语常是第二人称you,常常省略。祈使句的开头是动词原形。Lookout!小心！小心！Waithereforme!在这等我！在这等我！Besuretocomehereontime!务必准时来到这里！务必准时来到这里！拓展延伸Listentomusicoutside.Dontlistentomusicoutside.Doyourhomeworkatschool.Dontdoyourhomeworkatschool.祈使句的否定形式以祈使句的否定形式以donot(常缩写成常缩写成dont)开头开头,再加上动

7、词原形。再加上动词原形。1.肯定祈使句的常见句型结构：肯定祈使句的常见句型结构：Do型：动词原形型：动词原形+宾语宾语+其他其他.Openthedoor,please.Be型：型：Be+表语表语.如：如：Bequiet!Let型：型：Let+宾语宾语+动词原形动词原形+其他其他.(或：或：Lets+动词原形动词原形+其他其他.)如：如：Letmehelpyou.Letsplaytennis.2.否定祈使句的常见句型结构：否定祈使句的常见句型结构：1.Do型和型和Be型的否定式：型的否定式：Dont+动词动词原形原形/be+其他其他.如：如：Dontforgetme.Dontbelate.2.警

8、示语：警示语：No+名词名词/动词动词-ing形式形式.如：如：Notalking.Noswimming!1.Hehastoeatbreakfastquickly.(改为一改为一般疑问句般疑问句)_2.Playvolleyballafterclass.(改为否定句改为否定句)_句型转换句型转换Doeshehavetoeatbreakfastquickly?Dontplayvolleyballafterclass.练习坊3.Wecanwearsportsshoesinclass.(改为一改为一般疑问般疑问)_4.Dontarrivelateforclass.(改为同义句改为同义句)_5.Erichastodohishomeworkbeforesix.(对划线部分提问对划线部分提问)_Canwewearsportsshoesinclass?Wemustbeontimeforclass.WhatdoesErichavetodobeforesix?Talkaboutyourschoolday.Whatcanyoudoandwhatdoyouhavetodo?Thenwritethemdown.