牛津译林级下册现在完成时语法专项讲解习题巩固演示ppt课件.pptx

现在完成时,初二语法专项,The Present Perfect Tense,CONTENTS,基本结构,过去分词,时间状语,01.,定义&结构,现在完成时的定义,I have been here since I was three years old.,Eddie has eaten the food.,Hobo has read the book for 3 times.,02,基本结构,现在完成时的基本结构,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,课堂演练,1.He has already gone home.He _ _ home _.(否定句)_ he _ home _?(一般疑问句)2.He has lunch at home.He _ _ lunch at home.(否定句)_ he _ lunch at home?(一般疑问句)3.This factory opened twenty years ago.(改为同义句)This factory_ _ _ for twenty years.,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,03,过去分词,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,(一)规则变化变化规则：与动词过去式规则相同。1.一般直接在词尾加上ed。look looked 2.以e结尾的动词，直接加d。move moved3.以y结尾，y前面是辅音字母的动词，变y 为i，再加ed。carry carried4.部分动词需双写尾字母，加ed。stop stopped,动词过去分词规则变化与不规则变化,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,(二)不规则变化 不规则动词的变化因词而异。但是如果对不规则动词的过去式和过去分词做一分析，就可发现其中的“规则”。同学们在记忆时，可按下面的形式对教材后不规则动词表进行分析、整理。,动词过去分词规则变化与不规则变化,ABC 型,AAA型,AAB型,ABA型,ABB型,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,04,时间状语,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,just（刚刚），already（已经），never（从来没有），ever（曾经），before（以前），yet（仍然），once（一次），twice（两次），many times（很多次），how many times（多少次），so far（迄今为止），during the past（last）three years（最近三年来），recently，over the years。,现在完成时标志词,副词的位置：just常用于肯定句中，放在have/has后，He has just come.never表示否定,放在have/has后,He has never visited the Great Wall.ever用于疑问句中,句型为:Have/Has主语ever 过去分词？“曾经过吗？”用于询问某人过去的经历。Have you ever been to the farm？before用于句末，The woman has never heard of that before.yet 用于句末或not 之后.Has the train arrived yet?No,not yet.already用于肯定句,have/has 之后或句末.We have already finished it.so far用于句首或句末.So far,we have visited the moon.,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,时间段连用 for表示一段时间的词语 I have taught English for 19 years.since表示过去时间点的词语 He has been at this school since 1986.since表示过去的时间状语从句 I have lived here since I was born.since一段时间ago.I have known him since 20 years ago.,For&Since,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,课堂演练,1.-Mum,may I go out and play basketball?-_you_ your homework yet?A.Do;finish B.Are;finishing C.Did;finish D.Have;finished 2.-_ you _anywhere before?-Yes,but I cant remember where I_ A.Did;surf;surfed B.Have;surfed;surfed C.Did;surf;have surfed D.Have;surfed;have surfed3.His brother has been to Stone Forest twice_he came to Yunnan.A.after B.before C.since D.for 4.Tom_the CD player for two weeks.A.has lent B.has borrowed C.has bought D.has had 5.I_a letter from him since he left.A.didnt receive B.havent got C.didnt have D.havent heard,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,05,延续性&非延续性动词,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,注意：当现在完成时与表示时间段的时间状语连用时(for/since 引导的时间状语），谓语动词必须使用延续性动词。如果谓语动词是非延续性动词则转化为对应的延续性动词。若不是和时间段连用，则不用转化。,延续性动词和非延续动词,延续性动词/持续性动词:表示一个动作可以持续一段时间或更长时间。如：study,play,do,read,learn,drive,write,clean,sleep,speak,talk,wait,fly,stay,sit,stand,lie,keep等。,非延续动词/瞬间性动词:表示一个动作发生在一瞬间，非常短暂。亦称终止性动词。如：begin,start,finish,go,come,leave,find,get up,arrive,reach,get to,enter,hear,stop,open,close,become,buy,borrow,lend,happen,join,lose,renew,die,take away,put up,set out,put on,get on/off等,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,become be joinbe in/be a member ofcome/arrive be here/inbegin(start)be on die be dead come back be back leave be away fall ill(sick,asleep)be ill(sick,asleep)get upbe up go outbe out finish be overput onwear 或be on openbe openmarry be married to closebe closed go to school be a student borrowkeep buyhave catch(a cold)have(a cold)get to know know begin to studystudy come to workwork,延续性动词和非延续动词,相互转换关系,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,课堂演练,1.His brother has been to Stone Forest twice_he came to Yunnan.A.after B.before C.since D.for 2.Tom_the CD player for two weeks.A.has lent B.has borrowed C.has bought D.has had 3.I_a letter from him since he left.A.didnt receive B.havent got C.didnt have D.havent heard 4.TheSmiths_inChinafor8years.A.haslivedB.livedC.havebeenD.live5.Hurryup!Theplay_fortenminutes.hasbegun.hadbegun.hasbeenon.Began,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,06,现在完成时与一般过去时,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,1)一般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。I saw this film yesterday.我昨天看了这部电影。（强调看的动作发生过了。）I have seen this film.我看过这部电影了。（强调对现在的影响，电影的内容已经知道了。）,现在完成时与一般过去时比较,2)一般过去时常与具体的表示过去的时间状语连用；现在完成时通常与模糊的时间状语连用，或无时间状语。一般过去时的时间状语：yesterday；last week；ago；in1990；in October；just now 现在完成时的时间状语：already；ever；for；just；never；since；yet；so far；till/until；up to now；in the past few years；recently,3)现在完成时与明显时间段连用，动词一般是延续性的，如：live；teach；learn；work；study；know等；一般过去时常用的非持续性动词有come,go,leave,start,die,finish,become等。She joined the League three years ago.她三年前入团了。(加入的动作不是延续的)She has been in the League for three years(since three years ago).她入团三年了。(在团内的状态，可延续)She has been a League member for three years(since three years ago).她入团三年了。(是团员的状态，可持续),牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,07,其他考察点,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,have/has gone to 已经去了某地现在还没有回来have/has been to 去过某地（现在不在该地）已经回来了，和次数连用表示去过某地几次have/has been in 已经呆在某地一段时间了，与时间段连用,have/has been to/have/has gone to/have/has been in,1.-Have you ever_Lintong to see the Terra Cotta Warriors?-Yes,I have.A.went to B.gone to C.been in D.been to 2.My parents _ Shangdong for ten years.A.have been in B.have been to C.have gone to D.have been,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,08,课后巩固练习,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,课后巩固,1.-Long time no see!I think you_ a lot.-Yes,I used to be quite,but now Im active.A.changed B.will change C.were changing D.have changed2.-_ it is from your school to your home?.-About ten minutes ride.A.How much B.How soon C.How long D.How far3.-When _you_ reading the book?-I dont know,Ii must busy recently.A.did;finish B.have;finished C.will;finish D.do;finish 4.-When your brother begin to live in Beijing?-He has lived there _he left school.A.has;since B.has;for C.did;for D.did;since,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,课后巩固,5.I_ this book last Monday.i have_ it for more than a week.A.lent;kept B.borrowed;borrowed C.borrowed;kept D.kept;borrowed6.Not only Peter but also Simon_to the librar.you can go there to find them.A.have been B.have gone C.has gone D.has been7.Mike and Sandy _about 20 years ago.A.are married B.have married C.got married D.have been married 8.-How long has the film_?-For about half an hour.it_at 7:30p.m.A.been on;began B.begun;began C.been on;ha began D.begun;has began9.Mr Li Kunming.He_the city three times.This time he_Kunming for three days.A.has been to,has gone to,have been in B.Has gone to,has been to,have been inC.Has been in,has been to,have gone to D.Has gone to,has been in,has been to,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,感谢您的聆听,牛津译林8B,Thank you!,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,牛津译林级下册现在完成时语法专项讲解习题巩固演示PPT【教学课件】,