Unit4SectionA(2d3c)課件人教版七年級(jí)英語(yǔ)下冊(cè)

Don’teatinclass.Unit4SectionA2d-3c學(xué)習(xí)目標(biāo)通過本節(jié)課的學(xué)習(xí)，同學(xué)們將能:1.掌握本課重點(diǎn)詞匯：important,bring,player,quiet...2.熟練地運(yùn)用祈使句、情態(tài)動(dòng)詞can,must及haveto陳述規(guī)章要求。3.學(xué)會(huì)正確使用目標(biāo)語(yǔ)言談?wù)摬⒚枋龈鞣N規(guī)則,遵守校園規(guī)則。Don’tlistentomusicinclass.Whataretheschoolrules?Don’tarrivelateforclass.Youmustbeontime.Don’teatintheclassroom.Don’truninthehallways.Don’tfight.FreetalkListentotheconversationandanswerthequestions.1.WhatareJohnandAlicetalkingabout? Schoolrules.2.Howmanyrulesdotheytalkabout? Four.2dReadtheconversationandfillinthechart.DOsDON’TsbelateforclassbringmusicplayerstoschoolweartheschooluniformbequietinthelibraryWhatrulesdoestheschoolhave?Wehavetowear

.Wehaveto

inthelibrary.Don’t

for

class.Don’tbring____________

toschool.theschooluniformbequietbelatemusicplayersJohn:Hi,myname’sJohn.It’smyfirstdayatschool.Alice:Hi,John.I’mAlice.Thisisagreatschool,buttherearealotofrules.John:Really?Whataresomeoftherules?Alice:Well,don’tbelateforclass.Thisisveryimportant.John:OK,sowemustbeontime.Canwebringmusicplayerstoschool?Alice:No,wecan’t.Andwealwayshavetoweartheschooluniform.John:Isee.Alice:Oh,andwealsohavetobequietinthelibrary.Role-playtheconversation.Don’truninthehallways.Don’tfight.Whataretherules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecan’t,butwecaneatinthedininghall.Canwewearahatinclass?Yes,wecan./No,wecan’t.Doeshehavetowearauniformatschool?Yes,hedoes./No,hedoesn’t.Whatdoyouhavetodo?Wehavetobequietinthe

library.GrammarFocus否定祈使句must用法情態(tài)動(dòng)詞can的一般疑問句及其答句haveto的一般疑問句及其答句祈使句什么是祈使句？用來表示請(qǐng)求、命令、勸說、號(hào)召、警告、禁止的句子稱為祈使句。在祈使句中,通常省略第二人稱主語(yǔ)you。肯定式以動(dòng)詞原形開頭，可在句首或句尾加please；否定式一般在動(dòng)詞原形前加don’t。Do型Be型Let型以動(dòng)詞原形開頭be＋表語(yǔ)let＋賓語(yǔ)＋動(dòng)詞原形Listento

me!Bequick!Letus

walk!2.Be型祈使句

4.No型祈使句1.Do型祈使句Don’tbe+表語(yǔ)+其他.Don’tlet+賓語(yǔ)+動(dòng)原+其他.Let+賓語(yǔ)+not+動(dòng)原+其他.Don’t+動(dòng)原+其他.No+動(dòng)詞-ing!No+名詞!表示“禁止”3.Let型祈使句祈使句的否定式情態(tài)動(dòng)詞must情態(tài)動(dòng)詞must表示說話人的主觀看法，表示必須、務(wù)必。無人稱和數(shù)的變化，不能單獨(dú)使用，必須與其后的動(dòng)詞原形構(gòu)成謂語(yǔ)。句型結(jié)構(gòu)：主語(yǔ)+must+動(dòng)詞原形+其他1.本單元中can意為“可以”，表示請(qǐng)求、允許。I

can

dance

and

sing.2.can還可表示能力，意為“能，會(huì)”。1)—Can

the

students

run

in

the

hallways?

—Yes,theycan./No,theycan’t.2)Wecan’teatintheclassroom.

情態(tài)動(dòng)詞can肯定句型：We_____listentomusicoutside.否定句型：We_____eatintheclassroom.一般疑問句型：_____wewearahat?簡(jiǎn)略回答：Yes,we/you_____.No,you/we_____.can’tcanCancancan’t情態(tài)動(dòng)詞can的句型結(jié)構(gòu):主語(yǔ)+can+動(dòng)詞原形+其他.主語(yǔ)+cannot/can’t+動(dòng)詞原形+其他.Can+主語(yǔ)+動(dòng)詞原形+其他?Yes,主語(yǔ)+can.No,主語(yǔ)+can’t.havetohaveto

表示必須，強(qiáng)調(diào)客觀需要，有不得不、被逼無奈做某事的意思。它既有人稱、單復(fù)數(shù)的變化，也有動(dòng)詞時(shí)態(tài)的變化。其否定形式和疑問句形式均需要借助助動(dòng)詞do才可以進(jìn)行變化。must表示主觀的義務(wù)和必要，多譯為“必須”。Youmust

finishthetask（任務(wù)）byFriday.haveto表示客觀需要做的事情，多譯為“不得不”。Idon’tlikeEnglish.ButIhavetostudyEnglish.肯定句：Shehastolookafterhermotherathome.否定句：Wedon’thavetocleantheroomtoday.一般疑問句及其簡(jiǎn)略回答：—Does

hehave

togotobednow?

—Yes,hedoes./No,hedoesn’t.haveto的句型結(jié)構(gòu):主語(yǔ)＋have/hasto＋動(dòng)詞原形＋其他主語(yǔ)+don’t/doesn’t

have

to＋動(dòng)詞原形＋其他—Do/Does+主語(yǔ)＋have

to＋動(dòng)詞原形＋其他?—Yes,主語(yǔ)＋do/does.

/No,主語(yǔ)+don’t/doesn’t.用所給單詞的適當(dāng)形式填空1.________________(notlisten)tomusicinbed.2.Youcan’t________(wear)ahatinclass.3.Please________(arrive)atschoolontime.4.John

(be)neverlateforclassinthemorning.5.Youmust______(eat)inthediningroom.6.Wehaveto____(be)quietinthelibrary.Exercises.Don’tlistenweararriveiseatbeWritetherulesfortheschoollibrary.LibraryRules1.2.3.4.Don’ttalk./Notalking.Don’teat./Nofood.

Don’tlistentomusic./Nolisteningtomusic.

Don’ttakephotos./Nophotos.12343aTips:

1.由圖示可知都是一些禁止類的標(biāo)志。2.可用否定祈使“Don’t+動(dòng)詞原形”或“No+名詞/動(dòng)名詞”。Bequiet?Q:__________________________________(she/haveto/inthelibrary)?A:_________________________________Eat?Q:___________________________________

(he/haveto/inthedininghall)?A:________________________________DoesshehavetobequietinthelibraryYes,shedoes.DoeshehavetoeatinthedininghallYes,hedoes.3bUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.Listentomusic?Q:_________________________________(we/can/inthehallways)?A:____________Wearahat?Q:_________________________________(we/can/intheclassroom)?A:_____________Canwelistentomusi