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1、七年级英语下册件七年级英语下册件SectionAac恢复恢复Unit4Donteatinclass.Section A grammar focus3c第1页/共26页What do we have to do at school or in the classroom?What cant we do?Lets look and say some school or class rulers.教师寄语：Norules,nostandards.(没有规矩不成方圆。）第2页/共26页 We have to do some reading every morning.Wehavetoexercisee
2、veryday.Wehavetoworkhardandhelpeachother.第3页/共26页Wehavetocleanourclassroomandkeepitcleaneveryday.WehavetowearourschoolIDcard.Wehavetodohomeworkafterschool.第4页/共26页第5页/共26页第6页/共26页.We cant run in the We cant run in the hallways.hallways.=Dontruninthehallways.Dontplaysportsintheclassroomorinthehallway
3、s.Butwecanplayitoutside.第7页/共26页Donttalkinclass.Dont talkwitheachotherinclass.Stoptalkinginclass.第8页/共26页Dontsmoke.Itsbadforyourhealth.Dontplaycardsatschool.Dontlistentomusicintheclassroom.第9页/共26页Letstalkaboutourfamilyrules.Dontwastewater.TurnoffthelightsTurnoffthelightswhenweleavethewhenweleavethe
4、room.room.第10页/共26页eatinbedwatchTVlatetalkloudlyonthephonegetuplateonSundaysplaycomputergameslateatnightsingloudlyatnightmakethebedaftergettingupcleanthebedroomA:What do you have to do at home?B:We have toA:What cant you do?B:We cant 第11页/共26页Dontruninthehallways.Dontfight.Whataretherules?Wemustbeon
5、timeforclass.Canweeatintheclassroom?No,wecant,butwecaneatinthedininghall.Canwewearahatinclass?Yes,wecan./No,wecant.Doeshehavetowearauniformatschool?Yes,hedoes./No,hedoesnt.GrammarFocusWhatdoyouhavetodo?Wehavetobequietinthelibrary.第12页/共26页情态动词情态动词cancan的用法的用法1)1)表示能力表示能力“会会,能能”CanCanyouplaytheguitar
6、youplaytheguitar?你会弹吉你会弹吉他吗？他吗？JimJimcancanspeakChinese.speakChinese.吉姆会说中文。吉姆会说中文。I Icancandanceandsing.danceandsing.我能唱歌又能跳舞。我能唱歌又能跳舞。2)表示允许、许可,“可以”、“能”Canthestudentsruninthehallway学生们可以在走廊上跑吗？Wecaneatoutside.我们可以在外面吃东西。注意:和大部分情态动词一样,can在否定句中,直接在can后加上not,在疑问句中,把can放到主语前面,并且没有人称和数的变化。haveto的用法表示客观
7、的必要性：“必须，不得不”，在一定意义上与must可以互换。must没有人称，数和时态的变化。haveto有人称，数和时态变化。Wehavetodohomeworkafterschool.Theymustbeontimeforclass.Shehastobequietinthelibrary.Doyouhavetogotoschoolontime?注意:haveto在否定句中,直接在haveto前面加dont,在一般疑问句中,在主语前面加助动词do,并且有人称，数和时态的变化。第13页/共26页肯定祈使句肯定祈使句肯定祈使句肯定祈使句Sitdown.Sitdown.Comein.Comein.
8、Eatathome.Eatathome.LetsgohomeLetsgohome.否定祈使句Dontsitdown.Dontcomein.Donteatathome.Donttalkinclass.祈使句用来表示请求、命令、叮嘱、号召或者劝告等,主语常是第二人称you,也就是听话者,因而you常省去。祈使句的开头是动词原形。句首或句末加上please，若在句末加please，之前要用逗号隔开。祈使句的否定形式多以donot(常缩写成dont)开头,再加上动词原形。第14页/共26页1.Sitdown.2.Comein.3.Eatathome.Dontsitdown.Dont come in.D
9、onteatathome.把下列祈使句改成否定句Practice:4.Listentomusicoutside.5.Doyourhomeworkatschool.Dontlistentomusicoutside.Dontdoyourhomeworkatschool.第15页/共26页1.late,dont,forschool,arrive2.music,listento,intheclassroom,dont3.eat,cant,intheclassroom,weDontarrivelateforschool.Dontlistentomusicintheclassroom.Wecanteati
10、ntheclassroom.Formsentences.组句第16页/共26页Dontsmoke.Nosmoking!Donttakephotos.Nophotos!Pleaseturnright!Doyouknowthese?Dontparkhere.Noparking.Dontturnleft.Donttalkloudly!Donttalk!Notalking!第17页/共26页Libraryrules1.Donttalk.2._3._4._Donteat.Writetherulesfortheschoollibrary.3aDontlistentomusic.Donttakephotos
11、.第18页/共26页Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.3b1.Bequite?Q:Doesshehavetobequiteinthelibrary?(she/haveto/inthelibrary)A:Yes,shedoes.2.Eat?Q:_(he/haveto/inthedininghall)?A:_Doeshehavetoeatinthedininghall?No,hedoesnt.Hecanalsoeatoutside.第19页/共26页3.Listentomusi
12、c?Q:_(we/can/inthehallways)?A:_4.Wearahat?Q:_(we/can/intheclassroom)?A:_Canwelistentomusicinthehallways?Canwewearahatintheclassroom?No,wecant.No,wecant.第20页/共26页3cMakeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!Atmydreamschool,wedonthavetocometo
13、schooleveryday.WeThebestschoolThebestschoolrulesrules1.Wecaneatinclass.2.Wedonthavetocometoschooleveryday.3.4.第21页/共26页用所给单词的适当形式填空。1.Dont_(listen)tomusicinthelibrary.2.Dowehaveto_(clean)theroomeveryday?3.Youcant_(wear)sunglassesintheclassroom.4.Please_(arrive)atschoolon time(准时).5.Johnisoftenlatefo
14、r_(class).classlistencleanweararrive第22页/共26页将下面的句子改为祈使句，每空一词。1.Youcancomein._,please.2.Icanhelpyou._me_you.3.Youcanteatinclass._inclass.4.Youcantbelateforschool._lateforschool.5.Youcanttakephotoshere._photoshere.ComeinLethelpDonteatDontbeNo第23页/共26页 Summary:1.情态动词can的用法2.肯定祈使句和否定祈使句祈使句的常见句型结构3.通过谈论校规、家规及图书室规则，进一步掌握祈使句的用法，学会拟定规则，逐渐养成自觉遵守校纪班规的好习惯。第24页/共26页第25页/共26页感谢您的观看。第26页/共26页