【课件】Unit+2+Section+A+Grammar+Focus+课件人教版（2024）七年级英语下册++

Unit2Norules,noorderSectionAGrammarFocusLearningobjectives发现并总结祈使句和含有情态动词的句子中的动词的形态变化特点;归纳和掌握祈使句的句式结构、意义和用法;根据语境，正确运用情态动词

can、must、haveto;使用祈使句和情态动词谈论学习和生活中的规则。在本节课结束后，我将能够：Standup.Sitdown.Takeaseat.Openyourbook.Raiseyourhands.Clapyourhands.Useyourpen.Isay,youdo.GameTimeLookattheblackboard

Whatkindofrulescanyousee?祈使句

(Imperativesentences)/ɪmˈperətɪv/祈使句Imperativesentences命令建议祝愿请求警告劝说...Helpme,please.Havefun.Standup.Nophotos.Let'sstarttheparty.

Don’tbesad.加上please更礼貌，

句末句首都可以；动原开头祈使句，有do,有be,有let,有No；主语是you常省去变否定，句首don’t莫忘记。祈使句句尾用句号或感叹号，读时用降调。句末用please时，前面通常加逗号。Readthesentences.Dotheverbsinboldneedtochangeforms?Why?Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.3aDo型祈使句Be型祈使句Do型Be型Let型No型Wearyouruniform.Respectyourteachersandclassmates./rɪˈspekt/Bekindtoyourfriend.Bequiet.Letmetry.Lethimplay.Nophotos.Nolittering.禁止拍照!禁止乱丢垃圾!Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.

情态动词can,must,haveto后面都接动词原形Haveathink:1.情态动词“can,must,haveto”在用法上有什么共同点？2.情态动词“haveto”和其他情态动词在用法上有何区别？3.haveto和must有何区别？haveto有人称和数的变化。haveto“不得不”，为客观需要做的事情。must“必须”，为主观的义务和必要。1.Don’tjumpthequeue.You______________waityourturn.2.I_____feedmydogmanykindsoffood,butI______givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon’tfeelwell?B:Yes,butyou_______________tellyourteacheraboutitwhenyou______beabsentfromclass.Completethesentencesusingcan,haveto/must,orcan’t/mustn’t.haveto/mustcanhaveto/musthavetocan’t3bjumpthequeue插队waityourturn等待你的顺序feedmydog喂狗leave离开beabsentfrom缺席4.A:Hey!CanIlookatyourbook?B:Shh,we___________talkquietlyinthelibrary.5.A:Canyouputonyour

seatbelt?We___________wearonewhenwe’reinacar.B:Sure.Thanks!haveto/musthaveto/mustquietly安静地putontheseatbelt系上安全带Lookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.Donoteatordrink.Noeatingordrinking.Youcan’t/mustn’teatordrink.3cDonotparkhere.Noparking.Youcan’t/mustn’tparkhere.Donottakephotoshere.Nophotos.Youcan’t/mustn’ttakephotos.parktakephotosDonotswimhere.Noswimming.Youcan’t/mustn’tswimhere.Donotfeedbirds.Nofeeding.Youcan’t/mustn’tfeedbirds.swimfeedbirdsDonotswimhere.Noswimming.Youcan’t/mustn’tswimhere.Don’tlistentomusicinthelibrary.Don’teatinthelibrary.Don’ttakephotosinthelibrary.LibraryRulesDon’ttalkinthelibrary.Notalking.Noeating/food.Nomusic.Nophotos.1.Whensomeonedoesn’twaitforhisturntogetonthebus,weshouldsay,“You

!”2.Whenweareincar,we.3.Thereisasigninthezoo.Itreads,“

!”4.You

inthelibrary.5.Youmusttellyourteacherswhenyou

.JumpthequeuebeabsentfromclassputontheseatbelttalkquietlyfeedanimalsjumpthequeueputontheseatbelttalkquietlyareabsentfromclassDon’tfeedanimals1.Youmustwearauniformatschool.（改为否定句）2.Wecanlistentomusicintheclassroom.（改为一般疑问句，并作否定回答）3.Don'ttalkinclass.（改为同义句）4.Peter

getupearlyonMondaymornings.（必须Youmustn'twearauniformatschool.

Youcan’tlistentomuscintheclassroom.

Notalkinginclavss.hasto5.Wehaveto______(clean)theclassroomeveryday.cleanNotalking/noise!Don’ttalk/makenoise.Youcan’t/mustn’ttalk/makenoise.Nosmoking!Don’tsmoke.