Unit4SectionA(2d3c)课件人教版七年级英语下册

Don’teatinclass.Unit4SectionA2d-3c学习目标通过本节课的学习，同学们将能:1.掌握本课重点词汇：important,bring,player,quiet...2.熟练地运用祈使句、情态动词can,must及haveto陈述规章要求。3.学会正确使用目标语言谈论并描述各种规则,遵守校园规则。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用法情态动词can的一般疑问句及其答句haveto的一般疑问句及其答句祈使句什么是祈使句？用来表示请求、命令、劝说、号召、警告、禁止的句子称为祈使句。在祈使句中,通常省略第二人称主语you。肯定式以动词原形开头，可在句首或句尾加please；否定式一般在动词原形前加don’t。Do型Be型Let型以动词原形开头be＋表语let＋宾语＋动词原形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+表语+其他.Don’tlet+宾语+动原+其他.Let+宾语+not+动原+其他.Don’t+动原+其他.No+动词-ing!No+名词!表示“禁止”3.Let型祈使句祈使句的否定式情态动词must情态动词must表示说话人的主观看法，表示必须、务必。无人称和数的变化，不能单独使用，必须与其后的动词原形构成谓语。句型结构：主语+must+动词原形+其他1.本单元中can意为“可以”，表示请求、允许。I

can

dance

and

sing.2.can还可表示能力，意为“能，会”。1)—Can

the

students

run

in

the

hallways?

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

情态动词can肯定句型：We_____listentomusicoutside.否定句型：We_____eatintheclassroom.一般疑问句型：_____wewearahat?简略回答：Yes,we/you_____.No,you/we_____.can’tcanCancancan’t情态动词can的句型结构:主语+can+动词原形+其他.主语+cannot/can’t+动词原形+其他.Can+主语+动词原形+其他?Yes,主语+can.No,主语+can’t.havetohaveto

表示必须，强调客观需要，有不得不、被逼无奈做某事的意思。它既有人称、单复数的变化，也有动词时态的变化。其否定形式和疑问句形式均需要借助助动词do才可以进行变化。must表示主观的义务和必要，多译为“必须”。Youmust

finishthetask（任务）byFriday.haveto表示客观需要做的事情，多译为“不得不”。Idon’tlikeEnglish.ButIhavetostudyEnglish.肯定句：Shehastolookafterhermotherathome.否定句：Wedon’thavetocleantheroomtoday.一般疑问句及其简略回答：—Does

hehave

togotobednow?

—Yes,hedoes./No,hedoesn’t.haveto的句型结构:主语＋have/hasto＋动词原形＋其他主语+don’t/doesn’t

have

to＋动词原形＋其他—Do/Does+主语＋have

to＋动词原形＋其他?—Yes,主语＋do/does.

/No,主语+don’t/doesn’t.用所给单词的适当形式填空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.由图示可知都是一些禁止类的标志。2.可用否定祈使“Don’t+动词原形”或“No+名词/动名词”。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