动词时态 ppt课件.ppt

Chapter6 Tense,动词的分类,v./v.s,ved,will+v,would+v.,had+Vp.p,have/has+Vp.p,will have+Vp.p,am/is/are+Ving,was/were+Ving,1、考查在语境中判断动词时态的运用能力。常考的时态为：一般现在、一般过去、一般将来、现在进 行、过去进行、现在完成、过去完成、现在完成进行、过去将来等。2、时间、条件、让步等状语从句中动词的时态；主从句时态呼应问题。3、几种时态的替代问题.,General exercises,1.I(have)this book for 2 weeks.,have had,are planted,2.Every year,many trees(plant)along the river.,3.Keep quiet,please!They(have)a lesson.,are having,4.-Hi,Lin Tao.I didnt see you at the party.-Oh,I(get)ready for the exam.,was getting,5.Tom(go)to bed early，but his brother doesnt.,6.Listen!Jims radio(make)a loudnoise.Would you please tell him to turn it down?,goes,is making,1 一般现在时的用法1）经常性或习惯性的动作1.I _ ping-pong quite well,but I havent had time to play since the new year.A.will play B.have played C.played D.play,1 一般现在时的用法2）客观真理，客观存在，科学事实或表示格言或警句。Knowledge begins with practice.She said that the sea water is salty.In some parts of the world,such as in England,tea _ with milk and sugar.A.is serving B.serves C.is served D.served,1 一般现在时的用法 3）按火车、汽车、飞机等时刻表将要发生的事。此时句中有时有将来的时间状语，但不用将来时此时主主语是物：车，船，飞机等 The train leaves at three this afternoon.4）在时间、条件、方式、让步状语从句中，用一般现在时代替一般将来时.(when,before,if,as soon as,unless If it is fine tomorrow,we will go to the countryside.,Exercises on p.30,2 一般过去时的用法 1）表示过去发生的，和现在没有联系的动作或状态1.-Look!Someone has spilt（溢出）coffee on the carpet.（地毯）-Well,it _ me.A.isnt B.wasnt C.hasnt been D.hadnt been 2.-Ive bought a box of chocolates for our daughter.-Oh,how good a dad!But she doesnt like sweet things._ that?A.Dont you know B.Havent you known C.Didnt you know D.Hadnt you known,3.-Was Mary in the office when you arrived there?-Yes,but she _soon afterwards.A.had left B.left C.would leave D.will leave,2 一般过去时的用法 2）注意：一般过去时与过去进行时的区别：一般过去时表示一个完成的动作，而过去进行时则表示一个没有完成且正在进行的动作。I wrote a letter this morning.今天上午我写了一封信。（信已写完）I was writing a letter this morning.今天上午我在写一封信。（正在写，不一定写完）,1.-Has Tommy finished his job yet?-I have no idea of it;he _ it this morning.A.was doing B.had been doing C.has done D.did2.As she _ the newspaper,Granny _asleep.A.read,was falling B.was reading,fell C.was reading,was falling D.read,fell,Excersices on p31,3.一般将来时,1.一般将来时表示计划、打算、企图做某事或来注定要发生的事情。2.表示将来时的四种形式will/shall+动词原形be going to do be about to do(正要干什么)be to do,be going to 有很强的计划性，打算干什么，而will表示谈话时临时决定的意图，具有临时性和偶然性。-The telephone is ringing.-I _ answer it.A.will B.am going to C.am to D.am about to-Alice,why didnt you come yesterday?-I _,but I had an unexpected visitor.A.had B.would C.was going to D.did be going to 可用来表达某种迹象要发生的事。而will 不能表示 Look at the clouds!Its going to rain.,3.be to和be going to 表示约定、计划或职责、义务要求即将发生的动作。be to do 安排将要干什么，有很强的计划性，有时=be going tobe to 表示客观安排或受人指示而做某事.be going to 表示主观的打算或计划。I am to play football tomorrow afternoon.Im going to play football tomorrow afternoon.,4be about to do 表示“正要干什么”，表示即将发生的动作，不与表示将来的时间状语连用。常与when 连用，when 此时意思：就在这时，是并列连词 构成句型：be about to do when.I was about to leave when it rained.,特别注意（1）一般现在时表示将来，特别用于车、船、飞机等时刻表中安排好的。The plane leaves tomorrow.(尽管有tomorrow,但没有will,be going to)（2）某些瞬间动词“go,come,arrive,leave,start,begin,fly,take”等用现在进行时表示将要发生的动作。Ive won a holiday for two to Floria.I _my mum.A.am taking B.have taken C.take D.will have been,Exercises on p32,4.现在进行时,1表示说话时正在进行而尚未完成的动作或状态。2表示现阶段一直在进行的动作，但说话时不一定正在进行。I dont really work here.Im helping until the new secretary comes.,1.Selecting a mobile phone for personal use is no easy task because technology_ so rapidly.A.will have changed B.has changed C.is changing D.will change 2.-Ann works very hard.-In fact.I think she _ just now.A.studied B.is studying C.studies D.will study,Exercises on p32,5.过去进行时,1表示 过去某一时间正进行的动作。通常有时间状语（从句），或由上下文表示。1.-Hey,look where you are going?-Oh,Im terribly sorry._.A.Im not noticing B.I dont noticing C.I havent noticing D.I was nt noticing 2.-Hey,what did I say?-I _.A.Im not listening B.I was not listening C.I dont listened D.I didnt listen,3 在简单句中有at that time,then,this time yesterday/last week,at 10 oclock last night 等具体的时间状语用过去进行时态。I first met Lisa three years ago.She _ at a radio shop at the time.has worked B.was working C.had been working D.had worked特别注意：与always连用，表示感情色彩。My brother was always losing his key.,Exercise p75,6.现在完成时,1表示过去发生的某一动作对现在造成的影响或结果，有时没有时间状语，有时有时间状语。They have cleaned the classroom.(They cleaned the classroom and the classroom is clean now.)2 表示过去已经开始，持续到现在而且可能继续下去的动作状态。He hasnt given me any more trouble since then.,1.-When did he go to America?-Oh,he _ there since half a year ago.A.went B.has been C.has gone D.wa2.Shelly _ California for Texas and _ there ever since.You can go and pay her a visit on your way to Mexico.A.left,worked B.has left,had worked C.left,has worked D.has left,worked,Collecting stamps as a hobby _ increasingly popular during the past fifty years.A.becomes B.became C.has become D.had become,Exercise p 81,7.过去完成时,1表示在过去某一时刻或动作之前已经完成了的动作，即“过去的过去”。请记住：by the end of+过去时间be the time+从句（用一般过去时）引导的句子或主句用过去完成时）,1.The old man _ two days after he had been sent to hospital.A.died B.would die C.had died D.has died 2.Old McDonald gave up smoking for a while,but soon _ to his old ways.A.returned B.returns C.was returning D.had returned,1.I _ to take a good holiday this year,but I wasnt able to get away.A.hope B.have hoped C.had hoped D.hoped 2.Helen _ her key in the office so she had to wait until her husband _ home.A.has left;comes B.left;had come C.had left;came D.had left;would come,Exercises p85,以 do 为例,以 do 为例,1.动词 work的时态形式,work(works),worked,will(shall)work,have(has)worked,had worked,am(is,are)working,was(were)working,have(has)been working,would(should)work,will(shall)be working,will(shall)have worked,write(writes),wrote,will(shall)write,have(has)written,had written,am(is,are)writing,was(were)writing,have(has)been writing,would(should)write,will(shall)be writing,will(shall)have written,2.动词 write的时态形式,takes a walk,took a walk,is going to take a walk,would take a walk,is taking a walk,was taking a walk,will be taking a walk,has taken a walk,had taken a walk,has been taking a walk,3.以 take a walk 为例,General exercises,