人教版英语七年级下册Unit 4 Don't eat in class Grammar课件

UNIT4Don’teatinclassSectionA(GrammarFocus-2C)1.能运用祈使句:beontime,Don’truninthehallway,Don’tfight,bequiet....2.能运用情态动词must,haveto。--Doeshehavetowearauniformatschool?--Yes,hedoes./No,hedoesn’t.Wemustbeontime.Wehavetobequietinthelibrary.Learninggoals（学习目标）Let’splayagameMinesweepinginclassinthedininghallinthehallwaysweartheschooluniformmustwearahatalotofschoolruleshavetofightwithsb.listentomusicbeontime在走廊上听音乐在餐厅在课堂上和某人打架准时戴帽子必须不得不许多校规穿校服eatCanwe_____________________?eatintheclassroomNo,wecan’t.Butwe

can

eatinthedininghall.Don’teatintheclassroom.Eatinthedininghall.dininghallLet’ssaywearahatCanwe___________________?wearahatinclassNo,wecan’t.We

can’t

wearahatinclass.

Don’twearahatinclass.Let’ssayschooluniformDoeshehaveto_______________________atschool?weartheschooluniformYes,hedoes.Hehasto/mustweartheschooluniformatschool.Hehasto/mustweartheschooluniformatschool.Let’ssayschooluniformDoeshehaveto_______________________atschool?weartheschooluniformNo,hedoesn’t.

He

doesn’thaveto

weartheschooluniformatschool.Hedoesn’thavetoweartheschooluniformatschool.Let’ssay3.Don’teatintheclassroom.Youmusteatinthedininghall.5.Don’tfight.4.Don’tlistentomusicinclass.1.Don’tarrivelateforclass.Youmustbeontime.2.Don’truninthehallways.Let’ssayWhataretheschoolrules?Rule1:Don’tfight.Rule2:Don’teatintheclassroom.Rule3:Don’tlistentomusicinclass.Rule4:Don’tarrive/belateforclass.Rule5:Don’truninthehallways.Rule6:Don’twearahatinclass.Let’sreadandlearn1.什么是祈使句？

表达命令,请求,劝告,警告,禁止等的句子。2.祈使句的特点:①省略______;②开头多为动词________。主语原形探究一:祈使句1.Sitdown,please！请求2.Putupyourhand.命令3.PleasecallMrs.Millerat555-3721.请求祈使句形式1.Don’tbelate.2.Don’truninthehallways.1.Bequiet,please！请求2.Beontimeatschool.1.Nophotos.=Don’ttakephotos禁止2.Notalking.禁止3.Nofood.禁止1.Let’sjointheartclub.2.Let’sgo.3.Let’spalybasketball.建议Do型Don’t型Be型No型Let’s型Let’slearn归纳:观察例句1-5，祈使句的肯定句do型:________:_________________1.Sitdown,please！2.Putupyourhand.3.PleasecallMrs.Millerat555-3721.4.PleasetalktoMr.Zhangafterschool.5.Eatinthedininghall.在餐厅吃Do型实义动词原形

+其他祈使句:Do型Let’slearn1.Don’tfight.2.Don’teatintheclassroom.3.Don’tlistentomusicinclass.4.Don’ttakephotos.5.Don’truninthehallways.不要在走廊上跑6.Don’tarrive/belateforclass.上课不要迟到归纳:观察例句1-6，祈使句的否定句Don’t形式:__________:________________________________.Don’t

+

动词原形/be

+其他Don’t

型Let’slearn祈使句:Don’t型归纳:观察例句1-4，祈使句的肯定句Let型:________:___________________________________1.Let’sjointheartclub.2.Let’srunafterschool.3.Let’spalybasketball.一起打篮球4.Let’sgo.一起去吧Let型Let+

宾语

+

动词原形

+

其他Let’slearn祈使句:Let’s型归纳:观察例句1-5，祈使句的否定句式No型:_________:_______________________________1.Nophotos.禁止拍照2.Notalking.禁止讲话3.Noswimming.禁止游泳4.Nofood.禁止吃东西5.Nomusic.禁止听音乐No+名词/动词-ing形式No型

Let’slearn祈使句:No型LibraryRules1.Don'ttalk.2.____________________3._____________________4.________________/NophotosWritetherulesfortheschoollibrary.3aDon'teatinthelibrary.Don'tlistentomusic.Don'ttakephotos.__________________________练习册P39-40(1)--_______silent,please!Youareinthelibrary.--I’msorry,madam.A.KeepB.TokeepC.KeepingD.Kept(2)--Mike,_______playfootballinthestreetnexttime.It’sdangerous.---OK,Iwon’tdothatagain,mom.A.mustn’tB.mustC.don’tD.do(3)Lookatthesign!(标志)“No____________.”Youcan’tswimhere.(4)上课不要迟到。Don’t_______lateforclass.swimmingbeExercise1.Wemustbeontimeforclass.2.Wemusteatinthedininghall.3.Wemustn’tbreaktherules.4.Hehastowearauniformatschool.5.Hedoesn’thavetowearauniformatschool.6.Wehavetobequietinthelibrary.探究二:情态动词must&haveto必须不准,禁止不得不不需要must必须(无人称,时态的变化)mustn’t不准,禁止have/hasto不得不(有人称,时态的变化)don’t/doesn’thaveto不需要,没必要--Canwewearahatinclass?--Yes,wecan./No,wecan’t.情态动词can一般疑问句及其回答1.--Doeshehavetowearauniformatschool?--Yes,he________./No,he________.2.--MustIgotherenow?--Yes,youmust./No,you_________./No,you_____________.情态动词must&haveto一般疑问句及其回答没必要注意否定回答needn’tdon’thavetodoesdoesn’t(1)Students_________playwithfireintheclassroom.It’squitedangerous(相当危险).A。.mustn’tB.mustC.couldn’tD.could(2)---Mustweweartheschoolclothestomorrow,Mr.Wang?---No,you_____.OnlyonMondays.TomorrowisTuesday.A.mustn’tB.needn’tC.can’tD.shouldn’t(3)---CanIswiminthelake,Mom?It’ssohot.---No,you______.Thesighsays“Noswimming”A.mustn’tB.needn’tC.wouldn’tD.shouldn’tExercise练习册P40

用must或haveto

的适当形式填空1.Thereisnobus,soyou________walkhome.2.I_________studyEnglishwell.3.Nick_______________

gotoschoolonweekends.(不必)4.You________gothroughtheroadwhenthelightisred.musthavetodoesn’thavetomustn’tExercise3bUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.Eat?Q:_____________________________________(he/haveto/inthedininghall)?A:__________________Doeshehavetoeatinthedininghall?Yes,hedoes.Listentomusic?Q:________________________________________(we/can/inthehallways)?A:__________________Canwelistentomusicinthehallways?No,wecan’t.Wearahat?Q:_______________