现在完成时态的用法总结完整汇总学习教案.pptx
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1、会计学1现在完成时态的用法现在完成时态的用法(yn f)总结完整汇总总结完整汇总第一页,共28页。2现在完成时一般疑问句式是 把助动词have或has提到主语之前(zhqin)。如:Have you read this story book yet?你读过这本故事书吗?Has he eaten that apple yet?他吃那个苹果了吗?注意:1)现在完成时的一般疑问句往往在句末加yet。2)一般疑问句译成汉语时,往往译成“.过吗?”,“还有.吗?”等.3)其肯定回答用:Yes,.have(has)否定回答用:No,.havent(hasnt)有时用:No,not yet或No,never
2、 第2页/共28页第二页,共28页。Lets continue:3现在完成(wn chng)时的否定句式是 “have(has)+not过去分词”。如:We havent studied Unit 2 yet 我们还没学习第二单元。The train hasnt stopped yet 火车还没有停下来。注意:1)现在完成(wn chng)时的否定句句末往往加yet。2)否定句常译为“还没有”等。第3页/共28页第三页,共28页。Lets continue:现在完成时的用法。表示过去发生或完成的某一动作对现在造成的影响或结果。如:Have you read that story?你读过那个故事
3、吗?(“读”发生在过去,对现在造成的影响是:是否(sh fu)知道故事的内容)I have bought two apples我买了两个苹果。(“买”发生在过去,对现在造成的结果是:拥有两个苹果)常与现在完成时连用的副词:already,just,yet,ever,never等。already,just多用于肯定句中,yet,ever,never多用于疑问句和否定句中。如:I have already finished my homework 我已经做完家庭作业了。He has just had his meal 他刚吃过饭。They havent started yet他们还没有动身。We
4、have never heard of it我们从来没有听说过这件事。第4页/共28页第四页,共28页。2现在完成时态既涉及过去,又联系现在,它可表示动作或状态过去已经开始一直延续到现在,和由“for+时间(shjin)段”或 “since+过去时间(shjin)点/从句”引导的时间(shjin)状语连用。例如:We have lived here for five years 我们在这里住了五年了。I have known him since he was a boy 我从他还是个孩子的时候就认识他了。注意:现在完成时与一般过去时的区别:现在完成时强调过去发生的事对现在造成的影响;一般过去时
5、指过去发生的事实。请看下面对话中一般过去时和现在完成时的不同。A:Have you seen the film?B:Yes,I have A:When did you see it?B:I saw it a year ago 第5页/共28页第五页,共28页。You have lived in Shenzhen since 1985.You have lived in Shenzhen for fifteen years.(for fifteen years)since 1985now(2000)1985now(2000)since+表示时间表示时间(shjin)点的词或时间点的词或时间(sh
6、jin)状语从句状语从句for+表示表示(biosh)一段一段时间的词时间的词第6页/共28页第六页,共28页。since+表示时间表示时间(shjin)点的词或时间点的词或时间(shjin)状语从句状语从句 for +表示时间表示时间(shjin)段的词段的词I have been a teacher since 1995.I have been a teacher since I came to Shenzhen.I have been a teacher for five years.第7页/共28页第七页,共28页。(1990-2000)He has been a teacher fo
7、r ten years.He has been a teacher since 1990.He has been a teacher since he left college in 1990.(left college)第8页/共28页第八页,共28页。He has been a painter for two months.(2000.72000.9)(moved to Japan)He has been a painter since he moved to Japan.He has been a painter since July.第9页/共28页第九页,共28页。(19972000
8、)He has been a doctor for three years.He has been a doctor since 1997.(came here)He has been a doctor since he came here in 1997.第10页/共28页第十页,共28页。(17/09/200026/09/2000)He has been a policeman for nine days.He has been a policeman since September 17th,2000.第11页/共28页第十一页,共28页。(19922000)He has been a
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