八年级英语上册 Unit 9 Can you come to my party Section A（Grammar Focus3c）教学课件 （新版）人教新目标版.ppt

period2sectiona gf 3c unit9canyoucometomyparty 学习目标 keywords phrases invite accept refuse studyforamathtest ontheweekend practicetheviolinkeysentences 1 canyoucometomypartyonsaturday sure i dloveto sorry imuststudyforamathtest 2 canshegotothebaseballgame no she snotavailable shemustgotothedoctor make acceptanddeclineinvitations a canyoucometomybirthdayparty b sure i dloveto birthdayparty review a canyougototheconcert b i msorry ican t ihavetoprepareforanexam gototheconcert prepareforanexam a canyougotothemovies b i msorry ican t ihavetogotothedoctor a canhegotothemovies b no hecan t hehastogotothedoctor gotomovies gotothedoctor a canyougotothezoo b sorry ican t ihavetohelpmyparents a canhegotothezoo b no hecan t hehastohelphisparents gotothezoo helpmyparents a canyouplaycomputergameswithme b sorry ican t ihavetogotothebaseballgame a canheplaycomputergameswithme b no hecan t hehastogotothebaseballgame playcomputergames gotothebaseballgame a canyouplaysoccerwithme b sorry ican t ihavetowatchtv a cansheplaysoccer b no shecan t shehastowatchtv playsoccer watchtv accept 接受 invitations sure yes ofcourse i dloveto certainly i dliketo decline 拒绝 invitations i msorry ican t ihavetolookaftermygrandmother ihavetostudyforamathtest iamgoingshoppingwithmyfriend 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 presentation 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 a theyhavetogototheparty dotheyhavetogototheparty yes theydo theydon thavetogototheparty b hehastogotoseethedoctor doeshehavetogotoseethedoctor yes hedoes hedoesn thavetogotoseethedoctor c shehadtostudyforamathtestyesterday didshehavetostudyforamathyesterday yes shedid shedidn thavetostudyforamathyesterday 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 wehavetowearwarmclothesinwinter 冬天我们不得不穿上暖和的衣服 客观需要 imustfinishmyhomeworkfirstbeforeiwatchtv 看电视前我必须先完成作业 主观要求 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 watchtvontheweekendmycousinvisitgrandparents completetheanswerswithmightandoneofthephrasesinthebox 3a 1 a whatareyougoingtodoonsaturday b i mnotsure imight 2 a whatareyouplanningtodoafterschool b idon tknow visitmygrandparents imightwatchtv 3 a whenwillyoufinishthesciencehomework b 4 a whoareyougoingtothemovieswith b 5 areyoufreetocometomyplaceonsaturday b watchtvontheweekendmycousinvisitgrandparents idon tknow imightfinishitonweekend i mnotsure imightgowithmycousin i mnotsure imighthavetopracticetheviolin 3b completethesentencesbelow usethewordsinbracketstohelpyou 1 inviting can playtennis accepting 2 inviting wouldliketo gotothemovies refusing reason mighthaveto canyouplaytennisonsaturday sure thatsoundsgreat wouldyouliketogotothemoviesonfriday sorry ican t imighthavetogooutwithmyparents 3 inviting can hangoutwithustonight refusing reason must 4 inviting wouldliketo cometomybirthdayparty accepting canyouhangoutwithustonight sorry i mnotfree imuststudyforatest wouldyouliketocometomybirthdayparty sure i dloveto invitev 邀请 themaninvitedmyfathertogofishingwithhimthismorning 这个男人今天上午邀请我爸爸和他一起去钓鱼 iinvitedhimtomyhouseyesterday 我昨天邀请他来我家 hewillnotcomewithoutyourinvitation 没有你的请柬他是不会来的 邀请某人干某事 为invitesb todosthinvitesb to后也可跟名词 invite的名词是invitation languagepoints 3c writedowneverythingyouhavetodonextweek chooseadayandtimetohaveaparty theninviteclassmatestoyourparty a canyoucometomyparty b whenisit a nextweek onthursdaynight b i msorry ihavetostudyforamathtest summary