Unit+4+Section+A+Grammar+Focus-3c 人教版七年级英语下册+

Unit4

Don'teatinclass!

SectionA2a-3cObjectives1.Tolearntotalkaboutlibraryrules2.Tolearntousehaveto/must,canandcan’t3.TolearntouseImperativessentencesDoyouknowthem?rules.schoolTheyareDon’ttalk.Don’teatfood.Don’tlistentomusic.（校规）Canweeatanappleintheclassroom?No,wecan’t.Don’t

eatintheclassroom.Wecan’t

eatintheclassroom.

.Sorry,Kathy.Canweruninthehallways?No,wecan’t.Don’truninthehallways.Don’t

runinthehallways.Wecan’t

runinthehallways.Canwe

listentomusic

inclass?No,wecan’t.Don’t

listentomusic

inclass.No!Wecan’t

listentomusic

inclass.Can

wearrivelate

forclass?No,wecan’t.arrivelateforclass.

Don’tNo!Wecan’t

arrivelateforclass.

Schoolrules:1.______arrivelateforclass/school.2.Don’teat___________________.3.______fight.4.______sleepinclass.5._______wearahatin______.6.______runinthe___________.7.________________musicintheclassrooms/hallways.8.Don’t……Don’tinclassDon’tDon’tDon’tclassDon’thallwaysDon’tlistento1.___listentomusicintheclassroomorhallways2.___listentomusicinthemusicroom3.___listentomusicoutside4.___eatintheclassroom5.___eatinthedininghall6.___eatoutside7.___wearahat8.___fightListen.Check(√)theactivitiesAlanandCindytalkabout.2a√√√√√√√Listenagain.CanAlanandCindydotheseactivities?Circlecanorcan’tabove.2bActivity1.___listentomusicintheclassroomorhallwayscancan’t2.___listentomusicinthemusicroomcancan’t3.___listentomusicoutsidecancan’t4.___eatintheclassroomcancan’t5.___eatinthedininghallcancan’t6.___eatoutsidecancan’t7.___wearahatcancan’t8.___fightcancan’t√√√√√√√Listenagainandfillintheblanks.Cindy:

Whataretheschoolrules,Alan?

Alan:Well,wecan’tlistentomusic_________________________.Butwecan

listentoit_________________________.Cindy:

Uh-huh.

Alan:Andwecan’teatinthe_________,butwecaneatinthe_____________.Cindy:Oh.Andcanwewearahatinclass?

Alan:____________.Whatelse?Oh,youcan't_________yourclassmates.Thatmakestheteachersreallyunhappy.Cindy:Isee…intheclassroomorhallwaysoutsideorinthemusicroomclassroomdininghallfightwithNo,wecan’tStudentAisAlanandStudentBisCindy.Talkabouttherulesin2a.2cCanwelistentomusic,Cindy?Wecan’tlistentomusicinthehallways,butwecanlistentoitoutside.Canwe_________?Yes,wecan./No,wecan’t,butwecan____________.1.wearahat2.eatintheclassroom3.fight1.eatinthedininghall1.WhatareJohnandAlicetalkingabout?2.HowmanyrulesdoesAlicemention(提到)?2d.Listenandanswerthesetwoquestions.Theyaretalkingaboutschoolrules.Shementionsfourrulesintotal.Don'tsDosbelateforclassbringmusicplayerstoschoolbeontimeweartheschooluniformbequietinthelibraryReadtheconversationandfinishthechart.1.祈使句的肯定句通常是以动词原形开头。否定句在动词原形前加don't.3.can,must,haveto后接动词原形。2.can表能够，允许，haveto表不得不，必须，must表示必须GrammarFocus1.情态动词在用法上有什么共同点？2.can在本单元主要表示什么含义？它还可表达什么意思？3.haveto在用法上与其他情态动词有何区别？一、祈使句用法：一般以动词原形开头，表示请求、命令、劝说、警告等。在祈使句中，通常省略句子主语第二人称you。2.句子结构(1)肯定句：__________+其他在餐厅里吃东西。

________________________________

在音乐教室里听音乐。

________________________________

骑自行车去上学。

_________________________________探究乐园动词原形Eatinthedininghall.Listentomusicinthemusicroom.Ridethebiketoschool.(2)否定句:

_____+_________+其他

不要和同学们打架。

_______________________________

不要在教室里打篮球。 ________________________________Don’tfightwithyourclassmates.

Don’tplaybasketballintheclassroom.Don’t动词原形以let引起的句子____+sb.+动词原形 让我们步行去上学吧。 _________________(4)No+动词-ing形式。表示“禁止、规劝”

禁止停车！NoParking.禁止吸烟！NoSmoking.LetLet’swalktoschool.二、询问和讨论学校规则：1.━有什么规则？━我们必须保持安静。__________________2.━我们可以在上课的时候戴帽子吗？________________________________

━不可以。你可以在外面戴帽子。_________________________________3.━你必须做什么事？__________━我们必须穿校服。

________________________________4.他必须在校吃午饭吗？

__________________________________Whataretherules?Wemustbequiet.Canwewearahatinclass?No,wecan’t.Youcanwearahatoutside.Whatdoyouhavetodo?Wemustweartheschooluniforms.Doeshehavetoeatlunchatschool?3aWritetherulesfortheschoollibrary.1234Don’ttakephotos.Don’tlistentomusic.Don’teatordrink.LibraryRulesDon’ttalk.________________________________________________Don’tlistentomusic.Don’teatordrink.Don’ttakephotos.方法指导：1.由图示可知都是一些禁止类的祈使句。2.可知应用“Don’t+动词原形”句子。3b

Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.Bequiet?Q:___________________________________(she/haveto/inthelibrary)?A:___________________________________Eat?Q:___________________________________(he/haveto/inthedininghall)?A:___________________________________Doesshehavetobequietinthelibrary?Yes,shedoes.Doeshehavetoeatinthedininghall?Yes,hedoes.Listentomusic?Q:___________________________________(we/can/inthehallways)?A:___________________________________Wearahat?Q:___________________________________(we/can/intheclassroom)?A:___________________________________Canwewearahatintheclassroom?No,wecan’t.Canwelistentomusicinthehallways?No,wecan’t.3c

Makeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!1.Wecaneatinclass.2.Wedon’thavetocometoschooleveryday.3.…Whatcanyoudo?Whatcan’tyoudo?Andwhatdoyouhavetodoathome?Doyouhavefamilyrules?Exercise一.单项选择

1.______withfire.It’sverydangerous.A.Playing

B.PlayC.Don’tplayD.Doesn’tplay2.Thechildren_____playfootballontheroad.

A.can

B.must

C.mustn’t

D.may3.Mysister______beatschoolbyseveno’clock.

A.hasto

B.haveto

C.hadto

D.mustto4.It’srainingallday,somybrother_____stayathome.

A.must

B.haveto

C.mustto

D.hasto

5.It’sverywarmoutside.You______wearthecoat.A.havetoB.hadn’ttoC.don’thavetoD.mustn’t6.Mary,______inbed.A.notread