八年級(jí)英語上冊(cè)Unit9CanyouetomypartySectionA2課件2（完整版）3

SectionAGrammarFocusYes,shecan.Can

she…No,hecan’t.Hehastostudy.Canhegotothebaseballgame?Canhe…No，theycan’t.

Theyhavetostudyforthemathtest.Canthey…CanyoucometomypartyonSaturday?Sure,I’dloveto.Sorry,Imuststudyforamathtest.Canyougotothemoviestomorrownight?Sure.Thatsoundsgreat.I’mafraidnot.Ihavetheflu.Canhegototheparty?No,hecan’t.Hehastohelphisparents.Canshegotothebaseballgame?No.she’snotavailable.Shemustgotothedoctor.Cantheygotothemovies?No,they’renotfree.Theymighthavetomeettheirfriends.GrammarFocus3aCompletetheanswerswithmightandoneofthephrasesinthebox.1.A:WhatareyougoingtodoonSaturday?B:I’mnotsure.Imight______________

2.A:Whatareyouplanningtodoafterschool?B:Idon’tknow.

____________________

watchTVontheweekendmycousinvisitgrandparentspracticetheviolinpracticetheviolin.ImightwatchTV.OntheweekendMycousinNo.Imightvisitgrandparents.3bCompletethesentencesbelow.Usethewordsinbracketstohelpyou.Inviting:(can/playtennis)

________________________________________________Accepting:________________________

2.Inviting:(wouldliketo/gotothemovies)Reason:

(mighthaveto)______________________________Refusing:Sure,thatsoundsgreat.wouldyouliketogotothemovies?I’mafraidnot.Ihavetoomuchhomeworktodo.Canyouhangoutwithustonight?No,Ican’t.Imustfinishmyhomework.Sure,I’dloveto.3cWritedowneverythingyouhavetodonextweek.Chooseadayandtimetohaveaparty.Theninviteclassmatestoyourparty.

星期一Monday

星期二Tuesday

星期三Wednesday

星期四Thursday

星期五Friday

星期六Saturday

星期日Sunday

Doyouknowweek?colorfulweekendactivitiesgofishinggoshopping

goskateboardingplaybasketballgotothecinemaclimbmountains

surftheInternet

gotoapartygototheconcertstudyforatestgotothedoctorhaveapianolessonvisithisauntgotoabaseballgame/havebaseballtrainingWeekendActivitiesWhatdoyouusuallydoonweekends?Whatactivitiesdoyoudoonweekends?

haveto…不得不A:Whatdoyouhavetodothisweekend?

B:Ihaveto…Whatweekendactivitiesdoyoudo?studyforatestgotothedoctorhaveadancinglesson情態(tài)動(dòng)詞主要有：may/might,can/could,must,haveto,shall/should,will/would,oughtto,need,dare,usedto。Grammarfocus現(xiàn)在我們來著重學(xué)習(xí)情態(tài)動(dòng)詞can以及haveto的用法。其特征主要有：1.不能獨(dú)立作謂語，只能和動(dòng)詞原形一起構(gòu)成謂語，表示說話人的語氣和情態(tài)。2.沒有人稱和數(shù)的變化。(haveto除外)3.否定形式：在其之后加not(haveto除外)。疑問形式：情態(tài)動(dòng)詞提到主語之前(haveto除外)。can為情態(tài)動(dòng)詞,在本單元中表示請(qǐng)求,用于發(fā)出邀請(qǐng)，后跟動(dòng)詞原形。當(dāng)同意接受對(duì)方的邀請(qǐng)時(shí),常用Sure,I’dloveto./Certainly./Ofcourse.等來回答；若不接受,常用Sorry等來有禮貌地拒絕,一般情況下需要說明不能接受邀請(qǐng)的原因以表示歉意。1.can/may都可表示“許可”。may用于較正式、客氣的場(chǎng)合，而can比較隨便（口語）。Youmay/cansmokehere.Borrowersmaynottakeoutofthelibrarymorethantwobooksatatime.Thepolicemansaysyoucan’tparkhere.(2)May/CanI/we…?表示征詢對(duì)方許可。Canyou…?表示請(qǐng)求。①—MayIuseyourphone?—Yes,youmay./Yes,please./No,youmaynot./No,youmustn’t./No,you’dbetternot./I’mafraidnot.

/I’msorry.I’dratheryoudidn’t.②—

CanIgooutandplay,Mum?

—Yes/Certainly,youcan./No,youcan’t.③—Canyouhelpmewiththisbag?—Withpleasure./Sorry,Ican’t.(3)都可表示“可能性”肯定句

Mr.Reedlookspale.Hemaybeill.(事實(shí)上的可能).Mr.Readisinpoorhealth.Hecanbeillatanytime.(邏輯、理論上的可能)Thisnewsmaybetrue.(=might/could)(事實(shí)上的可能)WangWeicanbereallystubborn.(有時(shí)或偶然可能會(huì))(=could)

否定句Thisnewsmaynotbetrue.(也許不,=mightnot)Thisnewscan’tbetrue.(不可能,=couldn’t)疑問句Canthisnewsbetrue?(=Could)≠M(fèi)aythisnewsbetrue?(4)can還可表示“能力”、“能夠”—Youcanswim,can’tyou?—No,Ican’t.Ican’tpromiseanything,butI’lldowhatIcan.TicketscanbeboughtfromtheTouristInformationCenter.2.might/could分別為may和can的一般過去時(shí)，分別表示過去的“許可”、“可能”和“能力”、“能夠”等。Thechildrenaskedwhethertheycould/mightgoforaswim.(過去許可)Iwasafraiditmightrainthatafternoon.(過去可能)Heaskedifthenewscouldbetrue.(過去可能)(Canthenewsbetrue?)

Shesaidhecouldspeakseverallanguages.(過去能力)Icouldn’tfindhertelephonenumber.(過去能夠)(2)都可表示現(xiàn)在或?qū)淼摹翱赡苄浴薄ＵZ氣沒有may肯定。①—There’ssomeoneatthedoor.

—Itcould/might(=may)beGeorge.(肯定句)

/Itcouldn’t(=can’t)beGeorge.(否定句)/Could(=Can)itbeGeorge?(疑問句)②Accordingtotheradioitcould/might/mayraintomorrow.③Lightningcould(=can)bedangerous.(3)Might/CouldI/we…?Couldyou…?

表示更委婉、更客氣的請(qǐng)求。①—Might/CouldIaskyouonemorequestion?

—Yes,ofcourseyoumay/might/can/could.②—Couldyouhelpmewiththeseboxes?

—OfcourseIcan./Withpleasure.

有時(shí)在陳述句中也表示更委婉、更客氣的請(qǐng)求或邀請(qǐng)：—IwonderifIcould/mightleavenow.—Idon’tsupposeyoucould/might.(2)could表示過去的技能、本能;was/wereableto表示過去某一具體場(chǎng)合經(jīng)過努力而做成某事。①IcouldswimwhenIwassix.②Hestartedlate,buthewasabletocatchtheeighto’clocktrain.=…buthemanagedtocatch…=…buthesucceededincatching…But:

③Mr.Smithcouldn’t/wasn’tabletoseeyoubecausehe’sgotabadcold.(3)beableto還有完成式和非謂語形式。①I’msorryIhaven’tbeenabletoansweryourletter.=I’msorryfornotbeingabletoansweryourletter.②Tobeabletorunisveryimportantforafootballer.

4.haveto的意思是“必須、不得不”,往往強(qiáng)調(diào)由于客觀原因而必須做某事。haveto后接動(dòng)詞原形；haveto有人稱、數(shù)和時(shí)態(tài)的變化,其第三人稱單數(shù)形式為hasto,其疑問形式和否定形式要借助于助動(dòng)詞do或does來完成。例如：Wehavetolookafteroursisterathome.我們不得不在家照顧我們的妹妹。Doeshehavetogetupearlytomorrowmorning?明天早上他必須早起嗎？Idon’thavetostayathometoday.今天我不必呆在家里。情態(tài)動(dòng)詞“haveto”與其他的情態(tài)動(dòng)詞如“can”,“may”“must”和“should”

不同。1)這4個(gè)情態(tài)動(dòng)詞沒有人稱的變化,

而haveto有,它的第三人稱單數(shù)為“hasto”如：

Heshouldstudyhard.Hehastostudyhard.2)

這4個(gè)情態(tài)動(dòng)詞在一般疑問句中將它們放在句首,在否定句中直接在他們后邊加not即可。我們以can為例:--Canhegowithus?他能和我們一起去嗎？--Hecan’tgowithus.他不能和我們一起去。而“haveto”要加助動(dòng)詞do,does或did才可能完成其疑問句、否定句。5.must/havetomust表示主觀“必須”；haveto表示客觀客觀需要，即“不得不”。Idon’tlikethisTVset.Imustbuyanewone.ThisTVsetdoesn’twork.Wehavetobuyanewone.(now)Youmustgetupatfivetomorrow.We(will)havetogetupearlytomorrow—we’regoingtoDevon.(future)IhadtoleaveearlybecauseIwasn’tfeelingwell.Shesaidshemust/hadtoseethemanager.(past)

表示邀請(qǐng)的句型:(你能來參加我的聚會(huì)嗎?)接受邀請(qǐng):拒絕邀請(qǐng):Sure,I’dlove/liketo.I’msorry,Ican’t.Ihaveto…/I’mV-ing…Exercise一、選擇正確的詞Thankyoufor

(ask/asking),butIcan’tgotothemovieswithyou.Paulhastostudy

(at/for)themathtesttonight.Mysisterhastoo

(much/many)homeworktodo.askingformuchontowatchthepiano二.對(duì)話填空。每空一詞，單詞的首字母已給出。A:Hey,XiaoWang,canyougotothem_______onSaturday?B:I’ms______,Ican’t.Ihavetoomuchh_________thisweekend.AndI’mnotf_________welltoday.A:That’stoob____.What’sthematter?oviesorryomeworkadeelingoldetteroctorhinkhanks三、選擇題1.Canyouplaytenniswith

onSaturday?A.usB.weC.ourD.ours2.Henry

hishomeworkthisafternoon.A.havetodoB.havetodoingC.hastodoD.hastodoing3.Tonyisplayingtennis

theschoolteam.A.onB.inC.toD.with4.Jim

playsoccerwithhisfriendthisweekend,becauseheisverybusy.A.canB.cansC.can