Unit2SectionAGrammarfocus课件-人教版英语七年级下册

GrammarFocusTelltherules.Maketherules.Followtherules.3tasksforyou.P133a祈使句祈使句一般用来表示请求、命令、警告等。

祈使句的主语一般是第二人称you，但往往省略。

祈使句的动词都为动词原形。Imperativesentencesaregenerallyusedtoexpressrequests,orders,warnings,etc.Thesubjectofanimperativesentenceisusuallythesecondpersonyou,butitisoftenomitted.Theverbsinimperativesentencesareallintheirbaseform学生们说的都是祈使句，什么是祈使句，它的特点是什么呢？直接展示TelltherulesMaketherulesFollowtherulesWalkinthehallway.Don'trun!Bepoliteandtreatoneanotherwithrespect.Don'tlitter./Youmustn'tlitter./Youcan'tlitter.Canwebringourphonestoclass?No,wecan't.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan'teatinclass.Wehavetoeatinthedininghall.Readthesentencesin3aandfindouttheimperativesentences.TelltherulesMaketherulesFollowtherulesWhatkindofstructurearethey？

P133aWalkinthehallway.Bepoliteandtreatoneanotherwithrespect.Don'trun!Don'tlitter.Dotheverbsinred

needtochangeforms?Why?不需要。因为在祈使句中，动词用原形。此处引导学生说出祈使句的结构，再补充let型，和No型，写板书TelltherulesMaketherulesFollowtherulesCanwebringourmobilephonestoclass?No,wecan’t.Wemustkeeptheminourlockers.TelltherulesMaketherulesFollowtherulesabsentfromtheclassCanIpunishyoulikethis?No,youcan’t.Youmustbepolitetoeveryone.Teachersmustn’tpunishstudentslikethese.belateforclassTelltherulesMaketherulesFollowtherulesqueueTelltherulesjumpthequeueMaketherulesFollowtherulesCanwejumpthequeue?No,wecan’t.Wehavetoqueueup.Canwelitterlikethis?No,wecan’t.Wecan’tlitter./Wemustn’tlitter.TelltherulesMaketherulesFollowtherulesCanweeatsnacksinclass?

No,wecan’t.Wehavetoeatinthedinninghall.TelltherulesMaketherulesFollowtherulesReadthesentences.Youmustn'tlitter./Youcan'tlitter.Canwebringourphonestoclass?No,wecan't.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan'teatinclass.Wehavetoeatinthedininghall.这些词为_________。表示说话人的语气和情态，如请求，许可，意愿等。情态动词不需要。因为在情态动词后，动词用原形。Dotheverbsinred

needtochangeforms?Why?TelltherulesMaketherulesFollowtherulescan表示请求、许可，意为___________Wecandrinkwaterintheclassroom.can’t

表示不许可，意为__________Wecan’tdrinkwaterintheclass.must表说话人的主观看法，意为_________Wemusthurry.Idon'twanttomisstheshow.mustn’t表示不允许，禁止，意为__________Wemustn’tlitter.haveto往往强调客观需要意为___________Wehavetohurry.Thetrainisleavinginfiveminutes.Canyoufinishthischartaccordingto3a?TelltherulesMaketherulesFollowtherules“可以”“不可以”“必须，一定”“禁止”“必须，不得不”1.Don'tjumpthequeue.You_____________waityourturn.2.I_____________feedmydogmanykindsoffood,butI

_____________givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon'tfeelwell?B:Yes,butyou_____________tellyourteacheraboutitwhenyou_____________beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we_____________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We_____________wearonewhenwe'reinacar.B:Sure.Thanks!3bCompletethesentencesusingcan,haveto/must,orcan't/mustn't.P133bhaveto/musthavetomustmust/havetohavetocancan't/mustn'tTelltherulesMaketherulesFollowtherules主观看法客观需要客观需要3cLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.P133c•

Donoteatordrink.•

Noeatingordrinking.•

Youcan't

/

mustn'teatordrink.TelltherulesMaketherulesFollowtherules•

Donoteatordrink.•

Noeatingordrinking.•

Youcan't

/

mustn'teatordrink.•

Donotparkhere.•

No

parking.•

Youcan't

/

mustn'tparkhere.•

Donottakephotos/pictures.•

Nophotos/pictures.•

Youcan't

/

mustn'ttakephotos/pictures.MaketherulesTelltherulesFollowtherules•

Donoteatordrink.•

Noeatingordrinking.•

Youcan't

/

mustn'teatordrink.•

Donotswim.•

No

swimming.•

Youcan't

/

mustn'tswim.•

Donotfeedthebirds.•

Nofeedingthebirds.•

Youcan't

/

mustn'tfeedthebirds.TelltherulesMaketherulesFollowtherules3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.P133dlibrary

home

schooldininghall

park

cinema

hospitalInthelibrary,wemustkeepquiet.Wemustn'tmakenoise.Wecan't…MaketherulesTelltherulesFollowtherulesMaketherulesTelltherulesFollowtherules注:另附word文档，点击此处链接Ⅰ.将下列句子改为祈使句。1.Youmustbequietintheclassroom.__________________________________________2.Youcan'tplaythepianoatnight.__________________________________________3.Wecantakehersomebooks.__________________________________________4.Youcancomein.__________________________________________5.Youcan'tplaybasketballhere._________