现在完成时用法大全(共3页).doc
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1、精选优质文档-倾情为你奉上现在完成时态1. 用法:表示过去发生的动作对现在造成的影响和结果,强调结果.常用的时间状语有many times,just,yet,ever,never,just,already,so far, by now等。表示动作或者状态在过去已经开始,持续到现在,也许还将持续下去。用于延续性动词,常常与so far、for或者since短语连用。since + 时间点 /从句,for + 时间段,如for two months等。2. 现在完成时的构成 have has+过去分词3. 现在完成时的四个基本句型肯定句 He has finished the work. 一般疑问
2、句 Has he finished the work? 否定句 He has not finished the work. 两回答 Yes ,he has. No, he hasnt.特殊疑问句 What has he done? 4. 在下列情形下用现在完成时1九词语already 已经 肯定句中或句尾 : I have already found my pen. = I have found my pen already.yet已经 否定句和疑问句句尾 例:I have not finished the work yet.Have you bought a computer yet?eve
3、r曾经 句中 例:Have you ever seen pandas?never从不 句中 例:I have never been to Beijing.just刚刚 句中 例:I have just done my work.before以前 句尾 例:I have never been there before.so far到目前为止 例:So far he has learnt 200 words.how long多久 例:How long have you lived here?how many times多少次 例:How many times has he been to Beij
4、ing?2两词组 havegone to去了某地(没回来 ) 例:He has gone to Beijing (去了北京)havebeen to去过某地 (回来了) 例:He has been to Beijing. (去过北京)3两结构for two months for +一段时间 Jim has lived here for 2 months.since last year since +过去点时间 Lucy has been in Beijing since 3 years ago.since 3 years ago since 1990 since he came heresinc
5、e +过去时态句子 He has been in China since he came here.4如果句子里面没有时间状语,汉语意思能够加“已经”,往往用现在完成时态。 例:Have you lost your library book? 你已经弄丢了从图书馆借的那本书吗? 5现在完成时态还常常用于下列句型 They have planted many trees in the last few years. 在过去的几年,他们已经种了很多树。 This is the best book I have ever read. 这是我曾经读过的最好的一本书。 It is the first t
6、ime I have played the computer games. 这是我第一次玩电脑游戏。6. 在现在完成时中,一次性动词不能和一段时间状语连用 例:He has bought the book for 3 years.(错)因buy这个一次性动词不能和一段时间for 3 years连用, 改正的办法有五种: He has bought the book. (去掉一段时间for 3 years) He bought the book 3 years ago (改为一般过去时,使句子的意思不变) Its 3 years since he bought the book. = 3 yea
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