【課件】Unit+2+Section+A+Grammar+Focus+課件人教版（2024）七年級英語下冊++

Unit2Norules,noorderSectionAGrammarFocusLearningobjectives發(fā)現(xiàn)并總結(jié)祈使句和含有情態(tài)動詞的句子中的動詞的形態(tài)變化特點;歸納和掌握祈使句的句式結(jié)構(gòu)、意義和用法;根據(jù)語境，正確運用情態(tài)動詞

can、must、haveto;使用祈使句和情態(tài)動詞談論學習和生活中的規(guī)則。在本節(jié)課結(jié)束后，我將能夠：Standup.Sitdown.Takeaseat.Openyourbook.Raiseyourhands.Clapyourhands.Useyourpen.Isay,youdo.GameTimeLookattheblackboard

Whatkindofrulescanyousee?祈使句

(Imperativesentences)/?m?per?t?v/祈使句Imperativesentences命令建議祝愿請求警告勸說...Helpme,please.Havefun.Standup.Nophotos.Let'sstarttheparty.

Don’tbesad.加上please更禮貌，

句末句首都可以；動原開頭祈使句，有do,有be,有l(wèi)et,有No；主語是you常省去變否定，句首don’t莫忘記。祈使句句尾用句號或感嘆號，讀時用降調(diào)。句末用please時，前面通常加逗號。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./r??spekt/Bekindtoyourfriend.Bequiet.Letmetry.Lethimplay.Nophotos.Nolittering.禁止拍照!禁止亂丟垃圾!Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.

情態(tài)動詞can,must,haveto后面都接動詞原形Haveathink:1.情態(tài)動詞“can,must,haveto”在用法上有什么共同點？2.情態(tài)動詞“haveto”和其他情態(tài)動詞在用法上有何區(qū)別？3.haveto和must有何區(qū)別？haveto有人稱和數(shù)的變化。haveto“不得不”，為客觀需要做的事情。must“必須”，為主觀的義務和必要。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插隊waityourturn等待你的順序feedmydog喂狗leave離開beabsentfrom缺席4.A:Hey!CanIlookatyourbook?B:Shh,we___________talkquietlyinthelibrary.5.A:Canyouputonyour

seatbelt?We___________wearonewhenwe’reinacar.B:Sure.Thanks!haveto/musthaveto/mustquietly安靜地putontheseatbelt系上安全帶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.（改為否定句）2.Wecanlistentomusicintheclassroom.（改為一般疑問句，并作否定回答）3.Don'ttalkinclass.（改為同義句）4.Peter

getupearlyonMondaymornings.（必須Youmustn'twearauniformatschool.

Youcan’tlistentomuscintheclassroom.

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