初中英语语法动词时态ppt课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,动词时态,初中阶段,8,种时态：,一般现在时,一般过去时,一般将来时,现在进行时,过去进行时,现在完成时,过去完成时,过去将来时,(1),一般现在时,:,表示经常反复发生的动作,.,e.g.They often spend their holidays in the south.,常搭配的时间状语,:,always often usually sometimes,seldom never from time to time,now and then,(,偶尔,)every day every.,once a week,2.,表示状态,:,e.g.He is busy at the moment.,3.,表示客观真理,谚语,格言,.,e.g.The sun sets in the west.,4.,用与时间或条件状语从句中,代替一般将来时,:,e.g.I will be happy,if you all come,.,We will go,when he comes,.,(2),现在进行时,表示说话时正在进行的动作,.,e.g.He is walking towards the plane.,2.,表示目前一阶段正在进行,(,但说话时不一定在进行,),的动作,:,e.g.We are writing a paper,these days,.,一般现在时与现在进行时的区别,进行时强调动作正在进行,而现在时强调动作的经常和反复,或特征,这类动作没有时间性的,.,某些表示感官知觉的动词如,:,see,hear,smell,taste,等表示感觉,用一般时,不用进行时,.,e.g.Do you see a plane in the sky?,注意,:1)feel,可以用一般时和进行时表示说话时的感觉,:,e.g.I am not feeling well today.,How are you feeling today?,I feel tired.,2)see,hear,有相应表示动作的动词,look at/listen to,这些词可以用进行时,比较,:Do you see a map on the wall?,He is looking at a map on the wall.,I hear a strange noise from the car engine.,He is listening to the music.,3.,有些表示,状态或心理感觉,的动词一般不用现在进行时,而用一般现在时表示,状态或感觉,如,love,like,hate,want,need,wish,know(,知道,),understand(,懂得,),remember(,记得,),believe,guess(,认为,),mean(,意味着,),think(,认为,),feel(,认为,),fit(,合适,),find(,认为,),show(,表明,),have(,有,),e.g.I hope you will enjoy your meal.,I want to visit them tomorrow.,4.,当有些感觉动词词义转变,成为表示动作的动词时,可以用进行时,:,e.g.,Now I see the liquid in the glass has turned red.,He is,see,ing his friend,off,at the airport.,I think they will come.,We are all thinking hard.,The report shows the problem is serious.,He is showing them around our school.,Exercise:,Water _(freeze)at the temperature 0.,The air _(keep)moving all the time.,The town _(lie)to the west of the hill.,I _(believe)you _ tell the truth now.,-_ my son _(work)hard this term?,-Oh,yes,he _(try)his best now.,6._ the hat _(fit)me well?,7.What has happened to the fish,Mary?,-Mum,the cat _(eat)the fish.Just now the cat _(jump)onto the table and _(eat)it up.,8.Sam _(live)in the small town for five years during the war.,9.It is ages since I last _(see)you.You _(grow)taller.,10.He wont tell us where he _(get)the book.,freezes,keeps,lies,believe,are telling,Is working,is trying,Does fit,has eaten,jumped,ate,lived,saw,have grown,got,(3),一般过去时,表示过去某一具体时间发生过的动作,.,e.g.I reviewed my lessons,last night,.,注意,:1),有时句中虽然,没有表示确定过去时间的状语,但根据上下文情景可以推断出是过去发生过的动作,此时也应用一般过去时,e.g.I was sorry to learn of your illness.,I didnt know he was your father.,2),描述已故之人的动作或状态用一般过去时,.,e.g.Edison invent,ed,the electric light.,2.,表示过去经常反复发生的动作,.,e.g.Peter often played basketball when he was in college.,3.,表示主语过去的状态或特征,.,e.g.It was rainy last week.,He was a taxi driver years ago.,4.,在时间,条件状语从句中代替过去将来时,.,e.g.He would give her the book if he saw her.,(4),过去进行时,表示过去,某一时刻,正在进行的动作,.,e.g.,He was doing shopping,this time,yesterday,.,We were having a discussion,at that time,.,2.,表示过去,某一阶段,正在进行的动作,.,(4),过去进行时,表示过去,某一时刻,正在进行的动作,.,e.g.,He was doing shopping,this time,yesterday,.,We were having a discussion,at that time,.,2.,表示过去,某一阶段,正在进行的动作,.,e.g.Peter was playing chess,the whole afternoon yesterday,.,We were having a meeting,from nine to eleven yesterday,.,3.,用与,when,while,as,引导的表示过去的从句,:,(,注意,这样的动词,必须可以持续,),e.g.While I was watching TV,the telephone rang.,As we were leaving,some of our friends arrived.,When we were playing in the playground,it began to rain.,过去进行时与一般过去时的区别,:,过去进行时强调过去某时刻或阶段动作的进行,不表明动作的完成,而一般过去时表示过去某动作已发生,表明动作已完成,.,e.g.He was writing a composition last night.(,作文不一定完成,),He wrote a composition last night.(,作文肯定写完了,),(5),现在完成时,构成：,have/has+,动词的过去分词,用法：,1.,表示说话前某一个时刻发生的动作之结果对现在的,影响,。,e.g.I have already sent him a card.,They have bought a new house.,常用的时间状语：,already,just,yet,2.,表示从过去某一时间持续到说话时为止的动作或状态，常与,“,for+,时间段,”或“,since+,时间点,”的时间状语连用。,e.g.We have learned English,for about three years.,He has been here,since last term,.,III.,现在完成时与一般过去时的区别：,1),完成时强调过去发生的动作的结果和影响；而一般过去时强调动作发生的,时间，地点，方式,等，与现在没有联系。,e.g.I have just had breakfast.,I had breakfast,a moment ago,.(,时间）,I have finished my homework.,I finished my home,at home,.,（地点）,2,）现在完成时表示的持续状态强调持续到说话时为止，与现在有联系，而一般过去时表示的持续状态强调过去某段时间的经历，与现在没有联系。,e.g.The Greens have stayed in China,for a year,.,The Greens stayed in China,for a year during the war,.,I have learned computer,for some time,.,I learned computer,for some time while in middle school,.,IV.,不可持续动词与可持续动词,1,）常见的词：,leave die put on fail ill,be away be dead wear be ill,borrow catch a cold buy join the army,keep have a cold have be in the army,2),不可持续动词不能与,“,for+,时间段,”,或,since+,时间点”,连用，应改用持续性动词。,I have bought a calculator.,I have,bought,the calculator,for a week,.,I have,had,the calculator,for a week,.,e.g.He,has had,the watch,for a month,.,He,bought,the watch,a month ago,.,My brother,has been in,the army,for a year,.,My brother,joined,the army,one year ago,.,但是：,不可持续动词的,否定结构,可以与”,for+,时间段”或,since+,时间点,”连用。,e.g.I havent,met,my teacher of English for a year.,We havent,met,each other since he left.,3)till/until,用法,可持续动词,+till/until :“,某动作一直持续到,”,not+,不可持续动词,+till/until:“,直到,才,”,e.g.I will,stay,until he comes.,I,wont leave,until he comes.,V.,现在完成时特例：,It is+,时间段,+since,e.g.It is two days since he left.,It is six weeks since they came here.,It is about a year since they joined the army.,(6),过去完成时,I.,构成：,had+,动词的过去分词,II.,表示过去的过去,III.,常用与：,1,）搭配时间状语：,by/by the end of +,过去的时间点,before+,过去的时间点,e.g.by the end of last term,by five o clock (,过去,),before he moved here,2,）主句是过去时的从句,e.g.He,said,that he,had been,a worker for five years.,3),根据上下文情景来体现：,I met Mary in the street one morning.She,had changed,greatly.,I met Peter yesterday.We,hadnt seen,each other for five years.,