初中英语人教版七年级下册Section A (Grammar Focus-3c).ppt

,Donteatinclass.,Unit4,SectionA2GrammarFocus-3c,鼎湖区永安初级中学陈淑卿,.根据句子或对话意思，选择恰当的单词填空，有的需要变换形式。,outside,wear,important,bring,quiet1.Alicelikesblueandshealways_blueshoes.2.Mike,letsgo_andplaysoccer.Thatsoundsgood.3.Canyou_meanapple,Jill?4.Donttalkhere.OK.Wellbe_.5.Its_tobrushteetheveryday.,wears,outside,bring,quiet,important,1.不要在楼道里跑。_2.不要打架。_3.有什么规则？_4.我们必须按时上课。_,阅读GrammarFocus，完成下列句子。,Dontfight.,Dontruninthehallways.,Whataretherules?,Wemustbeontimeforclass.,GrammarFocus,5.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。_7.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？_9.是的，必须。/不，不必。_10.你们必须做什么？_11.在图书馆里我们必须保持安静。_,Yes,hedoes./No,hedoesnt.,Doeshehavetowearauniformatschool?,Whatdoyouhavetodo?,Wehavetobequietinthelibrary.,祈使句是表示请求、命令、建议等的句子。句子中通常省略主语you，谓语动词一律用原形。,祈使句,一、祈使句的肯定式1.以行为动词原形开头，简称Do型。e.g.Comehere.到这儿来。2.以动词be开头，简称Be型。e.g.Bequiet,please.请安静。3.以Let开头，简称Let型。e.g.Letsgo!咱们走吧!,注意：有时可在祈使句的句首或句尾加上please，使语气显得客气、有礼貌。如果在句尾加please，应该用逗号与前句隔开。e.g.Gothisway,please.请这边走。,二、祈使句的否定式1.Do型和Be型的否定式是在句首加dont。e.g.Dontsithere.不要坐在这儿。Dontbelate.别迟到。2.以let开头的祈使句，其否定式有两种：一种是直接在句首加dont，另一种是“let+宾语+not+动词原形+(其他)”。e.g.Dontlethimgo.不要让他走。Letsnotgothere.咱们别去那儿。,肯定祈使句否定祈使句Sitdown.Comein.Eatathome.Listentomusicoutside.5.Doyourhomeworkatschool.,Dontsitdown.,Dontcomein.,Donteatathome.,Dontlistentomusicoutside.,Dontdoyourhomeworkatschool.,Examples,注意：“No+名词/动词ing形式”表示禁止或规劝，常用于公共场所。e.g.Nophotos!禁止拍照！Nosmoking！禁止吸烟！,将下列句子翻译成英语。1.请看这幅图画。2.不要在教室里跑。3.让我们帮助他。,Pleaselookatthepicture./Lookatthepicture,please.,Dontrunintheclassroom.,Letshelphim.,4.在图书馆保持安静。5.上课不要迟到。,Bequietinthelibrary.,Dontbelateforclass.,LibraryRulesDonttalk._,3aWritetherulesfortheschoollibrary.,Dontlistentomusic.,Donteatordrink.,Donttakephotos.,方法指导：1.由图示可知都是一些禁止类的祈使句。2.可知应用“Dont+动词原形”句子。,Bequiet?(she/haveto/inthelibrary)Q:Doesshehavetobequietinthelibrary?A:Yes,shedoes.,3bUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.,2.Eat?(he/haveto/inthedinninghall)Q:_A:_3.Listentomusic?(we/can/inthehallways)Q:_A:_4.Wearahat?(we/can/intheclassroom)Q:_A:_,1.根据例句，可知要求我们造一般疑问句并根据实际情况进行回答。2.先确定句子的主语。3.再确定用情态动词还是用助动词来构成疑问语序。4.根据实际情况做出肯定或否定回答，答语的主语要与问句保持一致。,方法指导,2.Eat?(he/haveto/inthedininghall)Q:_?A:_3.Listentomusic?(we/can/inthehallways)Q:_?A:_4.Wearahat?(we/can/intheclassroom)Q:_?A:_,Thenanswerthequestions.,Yes,hedoes.,Doeshehavetoeatinthedininghall,Canwelistentomusicinthehallways,No,wecant.,Canwewearahatintheclassroom,No,wecant.,Atmydreamschool,wedonthavetocometoschooleveryday.,Wecaneatinclass.,3cMakeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!,Wedonthavetowearschooluniforms.,Wecanlistentomusicinclass.,Wecaneatintheclassroom.,Wedonthavetodohomework.,Atmydreamschool,wedonthavetocometoschooleveryday.Wecaneatintheclassroom.Wecanlistentomusicinclass.Wedonthavetodohomework.Wedonthavetowearschooluniformsatschool.,Report,Great!Jimsschoolisthecoolest.,Discussandmakerulesforthecomputerroominyourschool.,ComputerRules_,Groupwork,Wemustbequietinthecomputerroom.,Dontruninthecomputerroom.,Donteatordrinkinthecomputerroom.,Wearslippersinthecomputerroom.,Report,ComputerRules_,Wemustbequietinthecomputerroom.,Donteatordrinkinthecomputerroom.,Dontruninthecomputerroom.,Wearslippersinthecomputerroom.,Cleanthecomputerroomeveryday.,1.Hehastoeatbreakfastquickly.(改为一般疑问句)_2.Playvolleyballafterclass.(改为否定句)_,句型转换。,Doeshehavetoeatbreakfastquickly?,Dontplayvolleyballafterclass.,3.Wecanwearsportsshoesinclass.(改为一般疑问)_4.Dontarrivelateforclass.(改为同义句)_5.Erichastodo