新人教版新目标九年级现在完成时语法学习新人教ppt课件.ppt

The Present Perfect Tense一.Form:1.一定句一定句:S (主语主语)+have/has+PP(过去过去分词分词)2. 否认句否认句:S (主语主语)+have/has+not +PP(过去分词过去分词)3.疑问句疑问句Have/has+ S (主主语)+PP(过去分去分词)? Yes, S+have/has.No, S+have/hasn’t.阐明：　阐明：　助助动词have和和has可前面可前面的主的主语缩略略为’ve,’s.如如 they’ve, we’ve, he’s, it’s; has not=hasn’thave not=haven’t二、过去分词的构成二、过去分词的构成1.+ed work, plant,call2.e+d live, change,like,love,agree,save hate, move,arrive, skate,hope, use3.以重读闭音节结尾，以重读闭音节结尾，末尾只需一个辅音字末尾只需一个辅音字母的母的 双写＋双写＋ed. 如：如：plan, stop,drop,fit(适适宜宜), prefer(更喜欢更喜欢), travel４。

以辅音字母＋４以辅音字母＋y，结尾，变，结尾，变y为为i＋＋edtry, study, carry, hurry, cry, worry,copy三、特征词三、特征词already(一定句一定句) yet(否认句和疑问句否认句和疑问句)never，，ever(疑问句疑问句)just (谓语动词之前谓语动词之前) before(句末〕句末〕　　•in the past/last few years,• (过去几年来过去几年来)•so far= up to now,till now,by now•these days•since/ever since•for+ 时间段时间段 四、用法四、用法表示过去发生的某一动作表示过去发生的某一动作对如今呵斥的影响或结对如今呵斥的影响或结果I have already seen the film. Jim has just lost his book.四、四、2.常和表示从过去某一时辰常和表示从过去某一时辰延续到如今的一段时间的状语连延续到如今的一段时间的状语连用用.如：如：for+时间段时间段 for12 weeks/three minutessince+ 时间点时间点(起点起点)since 9 o'clock this morningsince＋一段时间＋＋一段时间＋ago＝＝for＋时间段＋时间段; since two weeks ago=for two weeks;for a year=since a year ago; since 2000=for 4 years  since+从句从句(常用普经过常用普经过去时去时)The Greens have lived in Beijing since they moved to Beijing from Paris.•时态填空：填空：•----Are you sure you _______________(lose) the book?----Yes, I ___________(look) for it everywhere, but I still can’t find it.have losthave looked2.We ___________ already ___________(copy) these words.havecopied3. Jim _______________(just, watch) a football match. He is so tired and hungry.has just watched4. ___________you ever _____________(travel) on a train?Havetravelled5. ---______ they _______(see) the film yet?---Yes.They_____________(see) it already.----When______they______(see) it? ----They _______(see)it just now.----Haveseenhave seendidseesaw6.---- ________ her sister ____________(be) to Nanning?----No,she_________( never,be) there before.Hasbeenhas never been五。

瞬间动词和延续性五瞬间动词和延续性动词的转换动词的转换•open--- be open; close--- be closed; begin--- be on; finish,end---be overbecome---be; join---be a member of\ be in…; die---be dead; get up---be up; come\arrive\reach\get to --- be in/be here; catch a cold---have a cold,come back—be backsleep/fall asleep---be asleep; buy--- have; borrow---keep;leave ---be away;。