现在完成进行时与过去完成进行时ppt课件.ppt

《现在完成进行时与过去完成进行时ppt课件.ppt》由会员分享，可在线阅读，更多相关《现在完成进行时与过去完成进行时ppt课件.ppt（12页珍藏版）》请在三一办公上搜索。

1、,Present Perfect Continuous Tense,Past Perfect Continuous Tense,现在完成进行时,过去完成进行时,目录,1.现在完成进行时的概念,2.现完进的用法和易错题,3.过去完成进行时的构成和特点,4.过去完成进行时的易错点,5.现完进和过完进的比较,Present perfect progressive,现在完成进行时，动词的一种基本时态。,其构成为:主语+助动词(have/has)+been+动词的现在分词+其他成分。,表示动作从某一时间开始，一直持续到现在，或者刚刚终止，或者可能仍然要继续下去也可以表示某种经历。since/for,注意

2、:现在完成进行时所应用的语境必须是现在，不能应用在过去的语境。,Present perfect progressive,用法：,1)延续：表示开始于过去的活动持续到现在，并且活动往往还没有结束，将继续持续下去。,I have been living in Hawaii for ten years.,2)重复：到目前为止的一段时间内重复发生的活动。,He has been going to Seattle for half a year.,现在完成时和现在完成进行时的区别：,He has painted the room.她已经粉刷过房间了。,(影响：墙壁是干净的),He has been pa

3、inting the room.他一直在粉刷房间。,(还未粉刷完),我在夏威夷已经生活了十年。,他在半年间经常去西雅图。,Quiz,1.-Do you have any news about Bob?-Yeah,we _ each other quite a lot recently.A.have been seeing B.had been seeing C.see D.have seen2.It seems water _from this tap for some time.Well have to take it apart and put it right.A.had leaked

4、B.is leaking C.leaks D.has been leaking,”,“,Present Perfect Continuous Tense,Quiz,3.Joseph _to evening classes since last month,but he still cant say What s your name in Russian.A.has been going B.went C.goes D.has gone4.I _ Lucy to be careful with her hand writing all the time,but she hasnt polishe

5、d it at all.A.told B.have been telling C.will be telling D.have told 书上有相关习题P19,”,“,Present Perfect Continuous Tense,1.表示过去某一时间之前一直进行的动作。,Past Perfect Progressive,构成,过去完成进行时是由had been+现在分词构成。,过去完成进行时表示动作在过去某一时间之前开始，一直延续到这一过去时间。和过去完成时一样，过去完成进行时也必须以一过去时间为前提。,2.表示反复的动作。,He had been mentioning your name

6、 to me.他过去多次向我提到过你的名字。,3.常用于间接引语中,4.接具有“突然”之意when句。,I had only been reading a few minutes when he came in.我刚看了几分钟他就进来了。,The doctor asked what he had been eating.医生问他吃了什么。,相对过去的某个时刻来说已经对现在有直接影响并且还在进行的动作。放在间接引语或虚拟语气中时它的时态不能再向前推，向后推是现在完成进行时。,Past Perfect Progressive,基本结构 had+been+动词-ing,这种时态很少用在否定句中，而多

7、以过去完成时代替：,特点,这种时态还可用在said，supposed等引起的间接引语中，代替现在完成进行时：,He had not practised English for many years（普通说法）He had not been practising English for many years（少见）,He said:“I have been speaking to John.=He said that he had been speaking to John,He thought:“She was watching me when I passed”=He thought tha

8、t she had been watching him when he had passed,1.无人称变化,易错点,2.这一时态没有被动,I had been working.They had not been working.,They had been picking apples.（他们一直在摘苹果）近似的被动句子Apples had been picked.（苹果已摘完）,3.不能与某一确定的数量或次数连在一起,He said he had been losing a lot of weight.,He had been painting the door.他当时一直在油漆门（油漆大

9、概还未干）,5.也可接具有“突然”之意的when分句,4.表示的动作常持续进行直到或超过的时间（这个时间在过去）,I had only been reading a few minutes when he came in.我刚看了几分钟他就进来了。,！书上有相关习题P33,Distinction,eg.I had been learning English three years ago.I have been learning English for three years.,Example（时态，助动词）,前者的意思是三年前我一直在学英语(但现在没学了);而后者的意思是我已经学了三年英语.

10、(说明现在还在学),I had been looking for it for days before I found it.I have been looking for it for days before I find it.,虽然两句话的意思都是“这东西我找了好多天才找着的。”，但是不难看出前者与后者的时态与助动词是不一样的。,Example（直接引语中的现在完成进行时，在间接引语中要转化为过去完成进行时。）,eg.He said:“I have been speaking to John.,=He said that he had been speaking to John,eg.He thought:“She was watching me when I passed”,=He thought that she had been watching him when he had passed,谢谢观看!,小组成员：谢漪珊，王紫淳，王璐瑶，葛婧，严彬，林茜,