《时态总复习》PPT课件.ppt

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1、时态总复习时态总复习Revision for tensesRevision for tenses一般现在时一般现在时v概念：经常发生的动作或存在的概念：经常发生的动作或存在的v状态。状态。v结构结构:be(am,is,are)(状态状态)v do/does(动作动作)v助动词用助动词用do/does(三单三单)v常用时间状语常用时间状语:每天每天 经常经常 通常通常 everyday often usually在早上在早上/下午下午 /傍晚傍晚in the morning/afternoon/evening一般现在时一般现在时 在晚上在晚上 有时有时 at night sometimes/at

2、 times 在周日在周日/周一周一 总是总是 on Sunday/Monday always 例例 句句ne.g.They do their homework.nThey dont do their homework.nDo they do their homework?nHe does his homework.n He doesnt do his homework.nDoes he do his homework?现在进行时现在进行时n概念：正在发生的动作。概念：正在发生的动作。结构结构:be(am/is/are)+doing 助动词助动词n常用词常用词:现在现在 听听 看看 now l

3、isten look 一般过去时一般过去时n概念：过去发生的动作或存在的状态。概念：过去发生的动作或存在的状态。结构结构:was/were(状态状态),did(动作动作)n助动词用助动词用did(行为动词行为动词)n常用时间状语常用时间状语:刚才刚才 去年去年 在在年年 just now last year in 19./20.上个星期上个星期/月月/学期学期 last week/month/term 在在以前以前 今天早上今天早上 ago this morning 在在以后以后 After/latere.g.Three days later we came back.Three days l

4、ater we didnt come back.一般将来时v概念：将要发生的动作。概念：将要发生的动作。v结构结构:will+do/be going to do 助动词助动词 (动词原形动词原形)v be+doing（进行表示将来）进行表示将来）v常用时间状语：常用时间状语：明年明年 不久不久 next year soon 下个星期下个星期/月月/学期学期 next week/month/term 在未来在未来 在在之后之后 in the future ine.g.He will fly to Beijing in a week.过去进行时n概念概念:过去某段时间正在发生的动作。过去某段时间正

5、在发生的动作。结构结构:be(was/were)+doing 助动词助动词 n常用时间状语常用时间状语:当当时候时候 在在期间期间 when while 在昨晚九点在昨晚九点 at nine last night yesterday evening e.g.My mother was cooking when I got home.现在完成时现在完成时n概念：过去发生的动作和现在有联系。概念：过去发生的动作和现在有联系。n结构结构:have/has+done(过去分词过去分词)助动词助动词n常用时间状语常用时间状语:已经已经 还还(没有没有)already(肯肯)yet(否否,疑疑)曾经曾经

6、从不从不 到目前为止到目前为止 ever never so far 自自以来以来 since/ever since 刚刚刚刚 在在之前之前 just before(位于句尾位于句尾)持续持续(一个月一个月/两天两天)for(a month/two days)例例 句句nI have already kept the book for two weeks.nI havent kept the book for two weeks yet.nHave you kept the book for two week yet?过去完成时过去完成时n概念：过去的时间之前已经发生的动作。概念：过去的时间之前

7、已经发生的动作。(过去的过去过去的过去)n结构结构:had+done(过去分词过去分词)助动词助动词n常用时间状语常用时间状语:到到为止为止 by n(完成时完成时)when(过去时过去时)ne.g.By the end of June they had planted three hundred trees.nIt had already stopped raining when I woke up.过去将来时过去将来时n结构结构:would+do(动词原形动词原形)助动词助动词n常用在宾语从句常用在宾语从句nHe told me that he would come to see me t

8、he next week.nThey never knew what would happen to the world in the future.Exercises:nMake sentences using the given words.1.play,Tom,games,computer,often,Tom often plays computer games.n2.help,Joe,repair,mother,radio,now,his,the,Joe is helping his mother repair the radio now.3.leave,Beijing,for,mor

9、ning,this,I,Chengdu,n I left Chengdu for Beijing this morning.n4.catch,they,already,thief,of,one They had already caught one of the thieves.n5.Tim,yesterday,here,come,say,the next week,hen Yesterday Tim said that he would come here the next week.情态动词情态动词n情态动词：后面跟动词原型、没有人称和数情态动词：后面跟动词原型、没有人称和数的变化的变化n

10、can(能、会能、会)I can swim.否定否定:cantnmust(必须必须)I must finish my homework.n否定：否定：neednt /dont have ton have to(不得不不得不)She has to help hern mother sweep the floor.n 否定：否定：dont/doesnt have to n should(应该应该)You should eat a lot ofn healthy food.n 否定否定:shouldntn may(也许也许)You may know him.n 否定否定:cant非限定性动词非限定性

11、动词n do、to do、doing 这三种形式叫非限定这三种形式叫非限定性动词性动词.(都是固定搭配都是固定搭配)n1.do:听听hear 观观see/watch 感感feel 使使make 让让let 帮帮help 请请pleasen最好最好had better 不带不带to.这就是这就是do的形式的形式.n e.g.I saw her (play)when In was eight.playnCould you please (take)outn the trash?nHe often helps Tina (study)n English.nI think a good friend

12、makes men (laugh).takestudylaugh to don可以跟可以跟to do的动词有的动词有:start,begin,liken would like,love,hate,want,wishn ask,tell,show,desire,hope,promisen decide,forget,remember,help,prefer,find out,agree,care,discuss,try,n某些形容词后面也可以跟某些形容词后面也可以跟to don如如:kind,good,nice,wrong,right,rudenIts important/necessary t

13、o don be sorry/happy/glad/pleased/sad/n surprised/worried/proud/lucky/n able/angry/easy/difficult/hard/n comfortabledoingn可以跟可以跟doing的动词有的动词有:finish,stop,enjoyn practice,begin,start,love,like,haten prefer,keep(sb.),spend,mind,avoidn continue,n give up，go on,doingn固定词组有固定词组有:be good at/do well inn be

14、 busy,think of,be interested inn have fun,have a good time,thank for,nbe fond of，what about,instead of,pay attention to,look forward to,die ofn keepfrom,preventfrom、get used ton be in trouble,n所有的介词后面都要用所有的介词后面都要用doing finish busy keep give up doingwhat abouthave fun 后面是tion的单词n information(信息信息),in

15、vention(发明发明),pollution(污染污染),composition(作文作文),n competition(竞赛竞赛),population(人口人口),nExamination(考试、检查考试、检查),n position(位置位置),introduction(介绍介绍),n pronunciation(发音发音)instruction(说明说明)n communication(沟通沟通),operation(操作操作),n conversation(交谈交谈),translation(翻译翻译)n action(行为行为),relation(关系、亲属关系、亲属),n ed

16、ucation(教育教育)，invitation(邀请邀请)n suggestion(建议建议),condition(状况状况),n direction(方向方向),tradition(传统传统)n contribution(贡献贡献)n discussion(讨论讨论)decision(决定决定)n 被动语态被动语态n通常强调动作的接受者通常强调动作的接受者n结构：结构：be+done（过去分词）（过去分词）n现在时的被动态：现在时的被动态：am/is/are+donene.g.The glass is broken.n The students are asked to obey then school rules.h