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1、英语教学课件系列Goforit!八年级(上)Unit9Canyoucometomyparty?SectionA1a-1cA:Canyouswim?B:Yes,Ican./No,Ican’t.A:Canyouplayfootball?B:Yes,Ican./No,Ican’t.表示能力的回答LanguageGoals:MakeinvitationsDeclineinvitationsacceptinvitationsTalkaboutobligationsabirthdaypartyA:Canyoucometomybirthdayparty?B:Sure,I’dloveliketo.接受邀
2、请的回答WorkinpairsA:Canyoucometomybirthdayparty?B:Sure,I’dloveliketo.A:Canyoucometomybirthdayparty?B:Sorry,Ican’t.Ihaveto…拒绝邀请的回答helpmyparents.WorkinpairsA:Canyoucometomybirthdayparty?B:Sorry,Ican’t.…自由操练可参考图片Ihavetoprepareforanexam.Explanation1.can的用法(1)表邀请。若接受邀请,回答为:OK./Allright./Sure./Ofcourse./Cer
3、tainly./Yes(Sure),I’dlove(like)to.若不接受邀请,回答为:Sorry,Ican’t.(+原因)eg.Canyoucometotheparty?Yes/Sure,I’dlove/liketo.Sorry,Ican’t.Ihavetohelpmyparents.其他表邀请的句型:1)Could/Will/Wouldyoucometotheparty?2)Wouldyoulike/lovetocometotheparty?3)Ihopeyoucometotheparty.4)Pleasecometotheparty.5)How/Whataboutcomingtothe
4、party?(2)表能力“能,会”否定句can’t不能eg.Hecanswim,butIcan’t.Howlongcanyoustayunderwater?(3)在否定句,疑问句中表示“不可能”或“一定不”eg.Canhecome?No,hecan’tcome.(他会来吗?不,他不能来.)2.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和数的变化,而haveto有。它的第三人称单数为“hasto”,过去时为hadto,如:Heshouldstudyhard.他应该好好学习。Hehastostudyhard.他
5、不得不好好学习。(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,hasto要加助动词does,还原havetohadto要加助动词did,还原haveto才可能完成其疑问、否定句。试将下面三种话分别写成(1)一般疑问句,并做肯定回答。(2)否定句。1:Theyhavetogototheparty.Dotheyhavetogototheparty?Yes,theydo.Theydon’thavetogoto
6、theparty.2:Hehastogotoseethedoctor.Doeshehavetogotoseethedoctor?Yes,hedoes.Hedoesn’thavetogotoseethedoctor.3:Shehadtohaveapianolessonyesterday.Didshehavetohaveapianolessonyesterday?Yes,shedid.Shedidn’thavetohaveapianolessonyesterday.2.haveto强调客观上需要做某事,即表示外界 条件的需要不得不做某事,含有“客观所迫”的意味,它有人称和数的变化,可用于多种时
7、态中,否定式为“不必”。must强调说话者主观上认为必须做某事,含有“主观判断”的意味,它的否定式意为“禁止,不允许”。eg.Ifonegetsill,he’llhavetoseeadoctor.Shehastogotoschoolbybus.Wemustgotoschoolontime.---MustIfinishthehomeworknow?---Yes,youmust./No,youneed