英文时态三完成时态精选PPT.ppt
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1、关于英文时态三完关于英文时态三完成时态成时态第1页,讲稿共33张,创作于星期三完成动作:1、现在完成(havehas done)2、过去完成(had done)3、将来完成(will have done)完成时态概述:形式:have done意义:完成时态表示的是在某一特定时刻(现在、过去或将来)之前开始发生的并持续到这一特定时刻或对这一特定时刻有影响的一个活动。第2页,讲稿共33张,创作于星期三现在完成时:现在完成时:在现在之前(即过去)开始发生并持续到现在或对现在在现在之前(即过去)开始发生并持续到现在或对现在有影响的动作。有影响的动作。I I have learnedhave learn
2、ed 2000 words so far.2000 words so far.过去完成时:在过去之前(即过去的过去)开始发生的并持续到过去或对过去有影响的动作。I I had learnedhad learned 1000 words by the end of last year.1000 words by the end of last year.将来完成时:在将来之前(可能是过去、现在或将来)开始发生的并持续的将来或对将来有影响的动作。I will have learnedwill have learned 3000 words by the end of next year.3000
3、words by the end of next year.第3页,讲稿共33张,创作于星期三一、现在完成时态(一、现在完成时态(havehas done)1 1、现在完成时态用法(一):延续到现在的动作或状态、现在完成时态用法(一):延续到现在的动作或状态 开始于过去的动作一直持续到现在,而且还可能开始于过去的动作一直持续到现在,而且还可能继续持续下去。谓语动词一般为延续性动词。继续持续下去。谓语动词一般为延续性动词。An old woman walked out into the middle of the street.The An old woman walked out into t
4、he middle of the street.The policeman yelled to her,policeman yelled to her,“DonDon t you know what it means t you know what it means when I hold up my hand?when I hold up my hand?”The lady said,The lady said,“Sure I do.I Sure I do.I have have beenbeen a school teacher for 28 years now.a school teac
5、her for 28 years now.”I I have livedhave lived here for 3 years.The teacher The teacher has taughthas taught in this school since I came here.in this school since I came here.I I ve workedve worked in this company since I left school.Since time began,man Since time began,man has livedhas lived in fe
6、ar of fire.in fear of fire.第4页,讲稿共33张,创作于星期三或者,由上下文明确告知,开始于过去的动作只持续到说话时刻为止即已结束。例如:A A:HaveHave you waitedwaited long?B:Ive waitedve waited for three hours.for three hours.I I ve waitedve waited for him all day;I dont want to wait any longer.t want to wait any longer.这种现在完成时的特点:这种现在完成时的特点:1 1)谓语动词一般为
7、延续性动词。2 2)动作发生的时间是过去,但这一动作持续到现在,而且还)动作发生的时间是过去,但这一动作持续到现在,而且还可能继续持续下去。可能继续持续下去。3 3)与这种用法的现在完成时态连用的时间状语通常是表示)与这种用法的现在完成时态连用的时间状语通常是表示“一段时间一段时间”的时间状语,以说明某个动作或状态持续了多久。的时间状语,以说明某个动作或状态持续了多久。第5页,讲稿共33张,创作于星期三与此种用法的现在完成时态搭配的时间状语:since时间点Ive worked in this company since 1980.Ive worked in this company sinc
8、e I left school.注意不能说:since three years,而要说since three years ago。for时间段Ive worked in this company for three years.Great changes have taken place in Beijing for the past few years.第6页,讲稿共33张,创作于星期三“到目前为止到目前为止”:until now,up until now,up to now,up till now,so far等。例如:We have up until now failed to take
9、 any action to decide on a We have up until now failed to take any action to decide on a common language that would further communication between common language that would further communication between nations.nations.“在最近几世纪年月以来在最近几世纪年月以来”:in the past few years,in the past few years,over the past
10、few years,during the last three months,for the last over the past few years,during the last three months,for the last few centuries,through centuries,throughout historyfew centuries,through centuries,throughout history等。例如:等。例如:Throughout history man has had to accept the fact that all Throughout hi
11、story man has had to accept the fact that all living things must die,for the very nature of life includes death.living things must die,for the very nature of life includes death.Through centuries the bizarre antics of sleepwalkers have Through centuries the bizarre antics of sleepwalkers have puzzle
12、d police,perplexed scientists and fascinated writers.puzzled police,perplexed scientists and fascinated writers.第7页,讲稿共33张,创作于星期三2、现在完成时态用法(二):过去发生但与现在仍有、现在完成时态用法(二):过去发生但与现在仍有联系的动作或状态联系的动作或状态 表示在不确定的过去发生的某一动作对现在仍有影表示在不确定的过去发生的某一动作对现在仍有影响。谓语动词一般为短暂性动词。响。谓语动词一般为短暂性动词。He He has brokenhas broken his le
13、g.his leg.He He brokebroke his leg.his leg.A modern girl went to the theatre with a vest and a pair of A modern girl went to the theatre with a vest and a pair of slippers.The ticket-examiner turned her away very politely:slippers.The ticket-examiner turned her away very politely:“Miss,Miss,NO ADMIS
14、SION WITH SLIPPERS.NO ADMISSION WITH SLIPPERS.”“Real1y?Real1y?”the girl took off the slippers and carried them in her hands,“Then I will Then I will go in barefootedly.go in barefootedly.”“Oh,my god!Oh,my god!”the ticket-examiner cried out,the ticket-examiner cried out,“Fortunately,I Fortunately,I h
15、ave not toldhave not told her NO ADMISSION WITH A her NO ADMISSION WITH A VEST.VEST.”A A:What What has happenedhas happened to Jane?She is crying.B:She broke the dining-room window.She has to face the She broke the dining-room window.She has to face the music when her father gets home.music when her
16、 father gets home.第8页,讲稿共33张,创作于星期三Mr.Odds works in a bank and lives on his own.The only family he has is in Mr.Odds works in a bank and lives on his own.The only family he has is in the next town:his sister lives there with her husband,and her son,Mark.Last the next town:his sister lives there with
17、 her husband,and her son,Mark.Last week Mr.Odds had a surprise.He drove home from the bank at the usual week Mr.Odds had a surprise.He drove home from the bank at the usual time,driving neither too slowly nor too fast;he parked his car where he always time,driving neither too slowly nor too fast;he
18、parked his car where he always parked it,out of the way of other cars,and he went inside to make his evening parked it,out of the way of other cars,and he went inside to make his evening meal.Straight away,there was a knock at the door.Mr.Odds opened the door,meal.Straight away,there was a knock at
19、the door.Mr.Odds opened the door,to find a policeman standing on the doorstep.to find a policeman standing on the doorstep.“What What havehave I I donedone wrong?wrong?”Mr.Odds asked himself.Mr.Odds asked himself.“HaveHave I I drivendriven on on the wrong side of the road?the wrong side of the road?
20、HasHas there there beenbeen some trouble at the bank?some trouble at the bank?HaveHave I I forgottenforgotten to pay an important bill?to pay an important bill?”“Hello,Uncle,Hello,Uncle,”said the policeman,said the policeman,“My nameMy name s Mark.s Mark.”You should have put the milk into icebox;I e
21、xpect it You should have put the milk into icebox;I expect it undrinkable by now.undrinkable by now.A Abecame Bbecame Bhad become Chad become Chas become Dhas become Dbecomesbecomes 第9页,讲稿共33张,创作于星期三第二种现在完成时态使用技巧1、这种完成时态的肯定句不与“一段时间”的时间状语连用常见的这类动词有:come,go,leave,kill,die,lose,buy,start,give,marry,joi
22、n,bring,etc.),因此与它连用的时间状语不能是指“一段时间”。I have heard from my girlfriend since I came to America.()I have bought this pair of shoes for a year()He has left his hometown for 3 years.()第10页,讲稿共33张,创作于星期三具有具有“新闻新闻”性质The President has been assassinated.He canHe cant go on holiday because he has brokenhas bro
23、ken his leg.his leg.请认真体会下面对话:A A:Have you you seenseen the film the film“Forrest Gump”?B B:Yes,I Yes,I havehave.A A:When When did you see it?you see it?B B:I I sawsaw it last spring.A:DidDid you see it alone?you see it alone?B B:No,I No,I saw it with my boyfriend.it with my boyfriend.第11页,讲稿共33张,创作
24、于星期三A:The President has been assassinated.B:Really?When did that happen?A:He was killed last night when he spoke in crowd.A:I hear that famous Chinese comedian has died.B:Really?When did she die?A:She was dead late last night.A:Has the boss come yet?B:Yes,he has.He is in his office now.A:When did he
25、 come?B:He came at 9 oclock.He asked about you.第12页,讲稿共33张,创作于星期三3、现在完成时态用法(三):到目前的一个时间段内重复、现在完成时态用法(三):到目前的一个时间段内重复发生的动作发生的动作For more than eighty years,scientists For more than eighty years,scientists have arguedhave argued over over whether life exists on the planet Mars.whether life exists on the
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