现在完成时态结构

2022-12-25 00:07:15   文档大全网     [ 字体: ] [ 阅读: ]

#文档大全网# 导语】以下是®文档大全网的小编为您整理的《现在完成时态结构》,欢迎阅读!
时态,完成,结构,现在
定句:主语+have/has+过去分词

否定句:主语+have/has not +过去分词 疑问句:Have/Has+主语+过去分词 7 现在完成时

1) 现在完成时的句型结构

①肯定句:主语+ have/has+ 过去分词 ②否定句:主语+ have/has+ not+过去分词 ③疑问句:Have/Has +主语+过去分词 (2 现在完成时的用法

①表示到目前为止曾经有过的或未曾有过的经历和体验。常和never ever several times等连用。 如:

I’ve never been to Africa. Have you ever been to Tokyo? I’ve been there three times.

. 表示某动作从过去开始,现在刚刚完成,对现在有一定的影响。常与just already, yet so far等词语连用。 如:

He has just finished his new book 注意:just now用于过去时。

.表示某动作从过去开始,一直持续到现在,可能还会持续下去。通常与 forsince连用。 如:I have lived in Qingdao for 6 years /since 6 years ago/since 2003/ since I came to this city. It is/has been …+ since….

It’s been seven years since we last saw each other It’s six years since he was a teacher

注意:for+一段时间,since后接一个过去的时间点或一般过去时的句子。 在表将来的时间状语和条件状语从句中代替将来完成时。 如:

You can go home when you have finished your work

比较:You can go home when you finish your work. (3) 过去分词的构成

一般情况下在动词词尾后直接加-ed 如:

listen-listened, talk-talked

以不发音的字母e结尾的动词,直接加d 1/2 如:

livelived hope-hoped

以辅音字母加y接尾的动词,yi,再加-ed 如:


worry-worried hurry-hurried

以重读闭音节结尾,且结尾只有一个辅音字母的动词,双写辅音字母,再加-ed :

dropdropped planplanned, stopstopped 不规则变化 如:

cutcut-cut, come-camecome begin-beganbegun, lendlent-lent


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