Unit9 SectionA Grammar Focus-3c 课件-人教版英语八年级上册

Unit9Canyoucometomyparty?SectionAGrammarFocus－3c学习目标543

1.Newwords:

invite,accept,refuse，invitesb.todosth.,refusetodosth.2.Grammar：①能用can发出邀请；

②学会接受或拒绝邀请，并说明原因；

④情态动词can,must,haveto,must等的用法。A:Canyoucometomybirthdayparty?B:Sure,I’dloveto.birthdaypartyA:Canyougototheconcert?B:I’msorry,Ican’t.Ihavetoprepareforanexam.gototheconcertprepareforanexamA:Canyougotothemovies?B:I’msorry,Ican’t.Ihavetogotothedoctor.A:Canhegotothemovies?B:No,hecan’t.Hehastogotothedoctor.

gotomoviesgotothedoctor

A:Canyougotothezoo?B:Sorry,Ican’t.Ihavetohelpmyparents.A:Canhegotothezoo?B:No,hecan’t.Hehastohelphisparents.gotothezoohelpmyparentsA:Canyouplaycomputergameswithme?B:Sorry,Ican’t.Ihavetogotothebaseballgame.A:Canheplaycomputergameswithme?B:No,hecan’t.Hehastogotothebaseballgame.playcomputergamesgotothebaseballgameGrammarFocusCanyoucometomypartyonSaturday?Canyougotothemoviestomorrownight?Sure,I’dloveto.Sorry,Imuststudyforamathtest.Sure.Thatsoundsgreat.I’mafraidnot.Ihavetheflu.Canhegototheparty?Canshegotothebaseballgame?Cantheygotothemovies?No,hecan’t.Hehastohelphisparents.No.she’snotavailable.Shemustgotothedoctor.No,they’renotfree.Theymighthavetomeettheirfriends.

情态动词can用法1.can表示能力，表示“能，会”。eg.Shecanplaythepiano.2.can表示许可，表示“可以”。相当于may（比may更口语化）；此外，could的语气更为委婉。eg.MayIcomein?Couldyouhelpme?can表示邀请时常用一般疑问句句式，结构为:Can+主语+动词原形+其他？

can表示邀请的用法might,can,must它们都是____动词，用来表达某种感情。

1.might意思是“________”。

2.can意思是“________”。

3.must意思是“______”。（主观）

4.haveto意思是“______”。（客观）Grammar情态必须不得不能；会可能；也许

Canyou...?意为“你能……吗？”，可用于邀请别人或委婉地请求某人去做某事。其肯定回答常用

Sure,I’dlove/liketo.，否定回答常用

I’msorry,Ican’t./Sorry,Ican’t.等。如：---Canyougotothebaseballgame?你能去参加棒球比赛吗？---I’msorry,Ican’t.

对不起，我不能。Explanation

情态动词haveto与其他的情态动词如can、may、must和should”

不同。

（1）这4个情态动词没有人称的变化,而haveto有。它的第三人称单数为“hasto”。

You/

Heshouldstudyhard.你/他应该好好学习。

Hehastostudyhard.

他不得不好好学习。haveto的用法（2）这4个情态动词在一般疑问句中将它们放在句首,在否定句中直接在他们后边加not即可。我们以can为例:

Canhegowithus?

他能和我们一起去吗？

Hecan’tgowithus.

他不能和我们一起去。而haveto要加助动词do,does或did才可能完成其疑问、否定句。

haveto与must

二者都有“必须”之意，但haveto

表示“客观上的需要”，有人称和时态的变化，否定形式为don’t/doesn’t/didn’thaveto(没必要)；must表示“主观上的要求”，无人称和时态的变化，否定回答一般用needn’t或don'thaveto(不必)。mustn’t表示“禁止”。如：比一比

Youdon'thavetotellhimaboutit.

你不一定要把此事告诉他。

Youmustn'ttellhimaboutit.

你一定不要把这件事告诉他。

—MustIbehomebeforeeighto’clock?

8点之前我必须回家吗？

—Yes,youmust./No,youneedn't./No,youdon'thaveto.

是的，必须回家。/不，不必。3aCompletetheanswerswithmightandoneofthephrasesinthebox.1.A:WhatareyougoingtodoonSaturday?B:I'mnotsure.Imight___________________________2.A:Whatareyouplanningtodoafterschool?B:Idon'tknow.__________________________3.A:Whenwillyoufinishthesciencehomework?B:____________________________________4.A:Whoareyougoingtothemovieswith?B:______________________________________5.A:AreyoufreetocometomyplaceonSaturday?B:___________________________________watchTVontheweekendmycousinvisitmygrandparentspracticetheviolinImightwatchTV.Imightgowithmycousin.visitmygrandparents.Imightfinishitontheweekend.Imightpracticetheviolin.Completethesentencesbelow.Usethewordsinbracketstohelpyou.3b1.Inviting:___________________________(can/playtennis)Accepting:______________________________2.Inviting:________________________________(wouldliketo/gotothemovies)Refusing:_____________________________Reason:______________________________(mighthaveto)Canyoucometoplaytennis?Sure,thatsoundsgreat.Wouldyouliketogotothemovies?I’mafraidnot.Imighthavetodomyhomework.3.Inviting:__________________________________(can/hangoutwithustonight)Refusing:_________________________________Reason:__________________________________(must)4.Inviting:_________________________________________(wouldliketo/cometomybirthdayparty)Accepting:________________________________Canyouhangoutwithustonight?No,Ican’t.Imustpracticetheviolintonight.Wouldyouliketocometomybirthdayparty?Sure,I’dloveto.IwillhaveabirthdaypartythisSaturday!NameAcceptRefuse(Reasons)LiLiWhocancometomyparty?

3cWritedowneverythingyouhavetodonextweek.Chooseadayandtimetohaveaparty.Theninviteclassmatestoyourparty.A:Canyoucometomyparty?B:Whenisit?A:Nextweek,onThursdaynight.B:I’msorry.Ihavetostudyforamathtest.MON.TUE.WED.THUR.FRI.SAT.SUN.REVIEWInvitation:

Canyoucometomyparty…?Acceptation:

Sure,I’dloveto.Yes,I’dloveto.Declination:I’msorry,Ican’t.Ihaveto…I’dloveto,butIhaveto…单项选择：1.Joe______gotothedoctor.Hislegisbroken.A.haveto

B.can

C.hasto

D.may2.—CanyouhelpmewithmyEnglish?—Sure,______.A.I’dlike

B.I’dloveC.I’dloveto

D.Ihaveto1.—Whoseschoolbagisthis?—It______beLily’s.Hernameisonit.A.must B.should C.might D.may2.I______herinvitationbecauseImustprepareforanexam.A.rewarded B.accepted C.refused D.received3.Jiminvitedus______cometohisparty.A.comeB