【文档说明】《Unit 4 Don’t eat in class》PPT课件6-七年级下册新目标英语【人教版】.ppt，共(42)页，1.386 MB，由小喜鸽上传

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Don’teatinclass.Don’tarrivelateforclassDon’tsleepinclass.Don’truninthehallways.Don’ttalk.Don’tplaysoccerintheclassroom.Don’tfight.Don’tliste

ntomusicintheclassroom.SaysomeschoolrulesDon’tplaybasketballinclass.Youhavetoplayontheplayground.Whatdoyousaytohim?Pleaseplayo

ntheplaygroundDon’tarrivelateforclass.Youmustbeontimeforclass!Whatdoyousaytohim?Beontimeforclass,please!Don’tlistentomusicinclass.Youmus

tlistentotheteachercarefully.Whatdoyousaytohim?Listentotheteachercarefully.Don’twearyourownclothesatschool.Youhavetowearyourscho

oluniform.Whatdoyousaytohim?Wearyourschooluniform,please!Don’tsleepinclass.Listentotheteachercarefully.Whatdoyousaytohim?Don’ttalkinclass.Be

quiet,please!Whatdoyousaytothem?Don’twearthehatinclass.Pleaseputyourhatintothedesk.Whatdoyousaytohim?Don’teatinclass.Pleaseeatinthed

ininghall.Whatdoyousaytohim?Don’tfight.Befriendlytoyourclassmate!Whatdoyousaytothem?Don’truninthehallways

.Pleasewalkslowly.Whatdoyousaytohim?Youhavetoplayontheplayground.Youmustbeontimeforclass.Youcan’tlistentomusic

inclass.Playontheplayground,please.Beontimeforclass,please.Don’tlistentomusicinclass!祈使句是表示请求、命令、建议等的句子。通常省略主语，谓语动词一律用。根据句子语

气的强弱，句末用号或号。原形感叹句you一、祈使句的肯定式1.以开头，简称Do型。e.g.Comehere.到这儿来。2.以动词开头，简称Be型。e.g.Bequiet,please.请安静。行为动词原形be注意有时可

在祈使句的句首或句尾加上，使语气显得客气、有礼貌。如果在句尾加，应该用与前句隔开。e.g.Gothisway,please.请这边走。pleaseplease逗号二、祈使句的否定式Do型和Be型的否定式是在句首加。e.g

.Don’tsithere.不要坐在这儿。Don’tbelate.别迟到。don’t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.在图书馆保持安静。Pleaselookatthepicture./Lookatthepicture,ple

ase.Don’trunintheclassroom.Bequietinthelibrary.4.让我们帮他。5.上课不要迟到。6.禁止游泳！Don’tbelateforclass.Let’shelphim.Noswimming!以Let开头，简称

Let型。e.g.Let’sgo!咱们走吧!以let开头的祈使句，其否定式有两种：一种是直接在句首加don’t，另一种是“let+宾语+not+动词原形+(其他)”。e.g.Don’tlethimgo.不要让他

走。Let’snotgothere.咱们别去那儿。“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！祈使句用来表示命令、建议，但我们

也可以用can’t和haveto，must来表示。E.gDon’topenthedoor.Youcan’topenthedoor.Pleasedoyourhomeworkfirst.Youhavetodoyourhomeworkfirst.

Beontimeforclass,please.Youmustbeontimeforclass.LibraryRules1.Don’ttalk.2.__________________3.__________________4.__________________Task1Writetheru

lesfortheschoollibrary.Don’tlistentomusic.Don’teatordrink.Don’ttakephotos.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“Don’t+动词原形”句子。Task2Dis

cussandmakerulesforthecomputerroominyourschool.ComputerRules1._______________2._______________3._______________4.________________5._________

_______Wemustbequietinthecomputerroom.Don’truninthecomputerroom.Don’teatordrinkinthecomputerroom.Wearslippersi

nthecomputerroom.ComputerRules1.___________________________________2.___________________________________3.________________

___________________4.___________________________________5.___________________________________Wemustbequietintheco

mputerroom.Don’teatordrinkinthecomputerroom.Don’truninthecomputerroom.Wearslippersinthecomputerroom.Cleanthec

omputerroomeveryday.Atmydreamschool,wedon’thavetocometoschooleveryday.…Wecaneatinclass.…Makeupfivecool

rulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!Atmydreamschool,wedon’thavetocometoschooleveryday.

Wecaneatintheclassroom.Wecanlistentomusicinclass.Wedon’thavetodohomework.Wedon’thavetowearschooluniformsatschool.Wecan’trule

thecountrywithoutrules.没有规章制度就不能治理好国家.www.jkzyw.comAnswermyquestionsCanwebelateforclass导单词Norules,nomanners.无规矩不成方圆1.Bequiet?(she/haveto/inthelibra

ry)Q:Doesshehavetobequietinthelibrary?A:Yes,shedoes.Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.2.Eat?(he/havet

o/inthedininghall)Q:________________________________?A:_____________3.Listentomusic?(we/can/inthehallways

)Q:________________________________?A:_____________4.Wearahat?(we/can/intheclassroom)Q:_____________________________?A:____________Thena

nswerthequestions.Yes,hedoes.DoeshehavetoeatinthedininghallCanwelistentomusicinthehallwaysNo,wecan’t.Canwewearaha

tintheclassroomNo,wecan’t.1.RememberthesentencesintheGrammarFocus.2.Writefiverulesinyourfamily.拓展情态动词can的用法1.表示能力（如体力和脑力方面

），意为“能；会”等。例如：CanyouspeakEnglish?你会讲英语吗？2.表示请求或允许，多用在口语中，意为“可以；能”等。例如：CanIhelpyou?我能帮助你吗？用于否定句表示不允许。例如：Youcan’tplaybasketball.你不能玩篮球。拓展情态动词can

的用法用于疑问句中用来提出要求。例如：Canyou...？“请你……好吗？”表示说话人的请求。CanI...？“我可以……吗？”用来征求对方是否允许自己做某事。如在句末加上please一词就显得更有礼貌了。例如：Canyouhelpme,please?请你帮助我好吗？拓展情态

动词can的用法3.表示可能。例如：Hecanbeathomenow.他现在可能在家。Themooncan’talwaysbefull.月亮不可能常圆。4.表示怀疑。在表达此意时，只能用于一般疑问句中，带有感情

色彩。例如：Canitbetrue?那会是真的吗？拓展haveto与一般情态动词的异同相同点：一般的情态动词不能单独作谓语，后面必须接动词原形一起构成谓语，haveto也是这样。拓展haveto与一般情态动词的异同不同点：1、一般的情态动词没有人称和数的变化，而且所用的时态也受到一定的限制

，而haveto有人称和数的变化。可用于多种时态中：一般现在时中当主语是第三人称单数时要用hasto，其余的人称用haveto，一般过去时中要用hadto。如：Shehastogotoschoolbybus.她不得不乘公汽上学。拓展2、否定句和疑问句的构成方式不同：①一般的情态动词直接在后面加

not构成否定句，把这些情态动词提到句首就构成一般疑问句。②而haveto的否定句和疑问句的构成往往要借助于助动词do的适当形式或助动词will即haveto,hasto,hadto的否定式分别为do

n'thaveto,doesn‟thaveto,didn‟thaveto，疑问句是在句首加助动词do的相应形式,句中还原成haveto。如:Whatdoesshehavetodo?她必须做什么？Youdidn„thavetowaitformeyesterday.昨天你没

有必要等我。haveto与一般情态动词的异同1.MrGreensmokehere,becausethere‟sasignonthewall.Itsays“Nosmoking.”2.It‟sveryhotoutside.Y

ouwearahat.3.Weeatintheclassroom,becauseit‟simpolitetoteachers.4.Igotobedafter11:00onschoolnight.5.Thestudentsreadbooksan

dmagazinesinthelibrary.can’tcancancancan’tPractice根据句意，用can和can’t填空。1.We________cleanourclassroomafterschool.2.She_______makeher

bedaftergettingup.3.It‟slate.MrBeckman________gotoworkbycar.4.EmilyandPeterjoinamusicclub.They_________practiceguitare

veryday.havetohavetohastohasto用haveto或hasto填空。Practice