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1、1.Present Perfect Tense1.Present Perfect Tense2.Present Perfect Continuous Tense2.Present Perfect Continuous Tense、现在完成时、现在完成时 1.1.现在完成时的构成现在完成时的构成 2.2.现在完成时的用法现在完成时的用法、现在完成进行时、现在完成进行时 1.1.现在完成进行时的构成现在完成进行时的构成 2.2.现在完成进行时的用法现在完成进行时的用法、现在完成时和现在完成进行时的比较、现在完成时和现在完成进行时的比较1.1.现在完成时的构成：现在完成时的构成：主动式主动式:hav
2、e/has done被动式被动式:have/has been done1.现在完成时现在完成时We _(already open)the window.过去的动作过去的动作:we opened the window.对现在的影响对现在的影响:The window is open.have already opened2.现在完成时的用法现在完成时的用法The boys are tired.They _(just play)a ball game.过去的动作过去的动作:The boys played a ball game.对现在的影响对现在的影响:The boys are tired.have
3、 just played现在完成时表示过去发生或现在完成时表示过去发生或已完成已完成的动的动作，或某一动作对现在造成的作，或某一动作对现在造成的影响影响或结或结果。通常与表示包括现在在内的时间副果。通常与表示包括现在在内的时间副词词just,already,before,yet,never,just,already,before,yet,never,ever,lately,recentlyever,lately,recently等状语连用。等状语连用。小结：小结：现在完成时用法现在完成时用法1-1-已完成、影响性用法已完成、影响性用法 already:用于用于肯定句肯定句;yet:用于用于否定
4、和疑问句否定和疑问句 Daniel _(live)in Beijing since he came to China.has lived pastfuturenowcamelivehas lived现在完成时表示现在完成时表示过去已经开始过去已经开始，持续到现在持续到现在,也许还会持续下去的动作或状态也许还会持续下去的动作或状态。可以和表。可以和表示从过去某一时刻延续到现在（包括现在在示从过去某一时刻延续到现在（包括现在在内）的一段时间的状语连用。如：内）的一段时间的状语连用。如：for和和since，so far,up to now,today,until/till,this week(mo
5、nth,year)during/over/in the past few years(weeks,months)现在完成时用法现在完成时用法2-2-未完成用法未完成用法小结：小结：Fill in the blanks:.a.She has learnt English 3 years.b.She has learnt English 3 years ago.c.They have lived here _1990.forsincesince I (see)her so far.What _(happen)to the USA in the past 35 years?havent seen h
6、as happenedSince 的补充用法的补充用法A.主句主句+since+从句从句Great changes have taken place since you left.B.It is+时间段时间段+since+从句从句 It is/has been two years since I left my hometown.b.It was/had been two years since I had left my hometown.c.It is years since I smoked.d.It is years since I began to smoke.I went to E
7、gypt in 1986.I went to Egypt in 2004.I _(be)to Egypt twice.have been现在完成时可过去发生过一次或多现在完成时可过去发生过一次或多次的情况，也可以说是一种经历。次的情况，也可以说是一种经历。现在完成时用法现在完成时用法3-3-经验性用法经验性用法I （not see）anything so beautiful in my life.havent seen小结：小结：()1.He has come here.()2.He has come here for 3 days.()3.He hasnt come here for 3 d
8、ays.()4.He has stayed here for 3 days.()5.He has been away for 3 days.与现在完成时有关的句型与现在完成时有关的句型:1)This(That/It)is the first(second)time+that-clause This is the first time that I _(see)pandas2)This(That/It)is the only time +that-clause It is the only time that I_(travel)abroad.3)This(That/It)is the best
9、/finest/most interesting +that-clause.It is the most delicious food that I _(taste)have seenhave traveledhave tastedPresent Perfect Continuous TensePresent Perfect Continuous Tense The boy started having dinner five minutes ago.He is still having dinner now.The boy _ (have)dinner since five minutes
10、ago.has been having1.现在完成进行时现在完成进行时The man started working in the field half an hour ago.He is still working now.The man _(work)in the field for half an hour.has been working现在完成进行时的构成：现在完成进行时的构成：have/has been doing现在完成进行时用法现在完成进行时用法1 1现在完成进行时表示过去的动作现在完成进行时表示过去的动作持续到现在持续到现在并有可能持续下去并有可能持续下去.CCTV has
11、been broadcasting English programs since 1984.broadcasted 1984futurenowbroadcastbroadcast小结：小结：现在完成进行时用法现在完成进行时用法2:2:现在完成进行时表示过去的动作持续到说话时刚结束。现在完成进行时表示过去的动作持续到说话时刚结束。Mavis started waiting.Kelly arrives.Kelly:Sorry Im late.Have you been waiting long?Mavis:Yes.Ive been waiting for an hour.an hour agofu
12、turenowwait小结：小结：3.3.现在完成时和现在完现在完成时和现在完成进行时的比较成进行时的比较 Tom _ (read)a book about Stonehenge.(She finished reading the book.)Tom _(read)a book about Stonehenge.(She is still reading the book.)has read has been reading比较一：比较一：pastfuturenowdid dohave done pastfuturenowdid dohave been doing do1.2.I _(trav
13、el)to Beijing three times.I _(travel)in Beijing for 3 days.have travelled比较二：比较二：have been travelling_have you been swimming in the lake?_have you swum in the lake?A.How longB.How many times比较三：比较三：AB1.She has had the pen for 2 years.2.She has written many compositions withthis pen.3.She has been wr
14、iting compositions with this pen.state verbaction verbaction verb比较四：比较四：()1.I have never visited America.()2.I have already been to America ()3.I have never been visiting America 比较五：比较五：比较六：比较六：Who has been eating my apples?Who has eaten my apples?（带有感情色彩）（带有感情色彩）（不带有感情色彩，（不带有感情色彩，只是陈述某事情）只是陈述某事情）现在完成时现在完成时 现在完成进行时现在完成进行时表动作完成表动作完成表动作仍然进行表动作仍然进行表动作的重复表动作的重复表动作的持续表动作的持续表感情色彩表感情色彩强调动作强调动作强调结果、影响强调结果、影响与动态动词连用与动态动词连用与静态动词连用与静态动词连用与与never,ever,yet,already 连用连用与与how many/much 连用连用与与how long 连用连用
最新六年级英语上册Unit1Publicsigns1课件苏教牛津版
