人教英语八年级上册Unit9SectionA%28Gr

Unit9CanyoucometomypartymarFocus-3cA:CanyoucometomybirthdaypartyB:Sure,I’dlovetobirthdaypartyA:CanyougototheconcertB:I’msorry,Ican’tIhavetogototheconcertA:CanyougotothemoviesB:I’msorry,Ican’tIhavetogotothedoctorA:CanhegotothemoviesB:No,hecan’tHehastogotothedoctorgotomoviesgotothedoctor

A:CanyougototheooB:Sorry,Ican’tIhavetohelyparentsA:CanhegototheooB:No,hecan’tHehastohelphisparentsgototheoohelyparentsA:CanyoueswithmeB:No,hecan’tHehastogotothebaseballgameesgotothebaseballgameA:CanyoueB:Sorry,Ican’tIhavetowatchTVA:CansheplaysoccerB:No,shecan’tShehastowatchTVplaysoccerwatchTVAccept接受invitations:Sure/Yes/Ofcourse,I’dlovetoCertainly,I’dlietoDecline拒绝invitations:I’msorry,Ican’tIhavetolooaftermygrandmotherIhavetostudyforamathtestIamgoingshoyfriend… 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/lieto，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。试将下面三句话分别写成（1）一般疑问句，并作肯定回答。（2）否定句。aTheyhavetogotothepartyDotheyhavetogotothepartyYes,theydoTheydon’thavetogotothepartybHehastogotoseethedoctorDoeshehavetogotoseethedoctorYes,hedoesHedoesn’thavetogotoseethedoctorcShehadtostudyforamathtestyesterdayDidshehavetostudyforamathyesterdayYes,shedidShedidn’thavetostudyforamathyesterdayhaveto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Wehavetowearwarmclothesinwinter冬天我们不得不穿上暖和的衣服。客观需要ImustfinishmyhomeworfirstbeforeIwatchTV看电视前我必须先完成作业。主观要求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’cloc8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。watchTVontheweeendmycousinvisitgrandparentsComightandoneofthephrasesinthebo3a1A:WhatareyougoingtodoonSaturdayB:I’mnotsureImight_______________________2A:WhatareyouplanningtodoafterschoolB:Idon’tnow_______________________visitmygrandparentsImightwatchTV3A:WhenwillyoufinishthesciencehomeworB:_______________________________________________4A:WhoareyougoingtothemovieswithB:_______________________________________________5AreyoufreetocometomyplaceonSaturdayB:_______________________________________________watchTVontheweeendmycousinvisitgrandparentsIdon’tnowImightfinishitonweeendI’mnotsureImightgowithmycousinI’mnotsureImighthavetopracticetheviolin3bCompletethesentencesbelowUsethewordsinbracetstohelpyou1Inviting:_______________________________can/oviesRefusing:_______________________________Reason:_________________________________mighthavetoCanyouplaytennisonSaturdaySureThatsoundsgreatWouldyoulietogotothemoviesonFridaySorry,Ican’tImighthavetogooutwithmyparents3Inviting:_______________________________can/hangoutwithustonightRefusing:_______________________________Reason:____________________________must4Inviting:_______________________________________________wouldlieto/cometomybirthdaypartyAccepting:_______________________________CanyouhangoutwithustonightSorry,I’mnotfreeImuststudyforatestWouldyoulietocometomybirthdaypartySureI’dlovetoinvitev邀请①Themaninvitedmyfathertogofishingwithhimthismorning这个男人今天上午邀请我爸爸和他一起去钓鱼。根据句①可知“邀请某人干某事”为invitesbtodosth。Languagepoints②Iinvitedhimtomyhouseyesterday我昨天邀请他来我家。根据句②可知invitesbto后也可跟名词。③Hewillnotcomewithoutyourinvitation没有你的请柬他是不会来的。根据句③可知invite的名词是invitation。3cWritedowneverythingyouhavetodonetweeChooseadayandtimetohaveaatestoyourpartyA:Canyoucome