七夕节英文现在完成时的句型、用法及例句

2021年1月13日发(作者：伍庄)
现在完成时
一． 构成

助动词 have/has + 过去分词

例:肯定句 I have worked. He has worked.
否定句 I have not (haven't ) worked. He has not (hasn't )worked .
疑问句 Have you worked ? Has he worked ?
回答Yes，I have. / No , I haven't . Yes, he has./ No, he hasn't.

二． 功能及意义

1. 表示一个动作发生在过去，对现在仍有影响，但没有具体的过去时间修饰。常
由下列副词修饰： ever曾经， never从不， already已经， yet还（未），（yet
只用在否定句和疑问句中）， just刚刚， recently，lately近来， so far 迄今为
止= until now, up to now， before 以前

例：Have you ever been to the Great Wall? 你曾经去过长城吗？
I have never heard of such a man.我从没有听说过那个人。
We have just had lunch 我们刚刚吃过午饭
I have already returned your money.我已经把钱还给你了。
I haven't found my book yet. （否）我还没有找到笔记本
Have you done your homework yet?（疑） 你做作业了吗？
Have you heard from him recently ? 你最近收到他的来信了吗？
So far, no one has made any mistakes yet.迄今为止 还没有人犯错误
I have never traveled by plane before .我以前从来没有乘飞机旅行过

2 表示一个动作发生在过去，一直持续到现在刚刚结束或者仍在继续。常常与
下列时间状语连用：
→for +
一段时间

I have learned English for 8 years
→since +
过去的一个时间点

I have learned English since 2001
→since +
一段时间
+ ago
I have learned English since 8 years ago
→since +
时态为一般过去时的时间状语从句

I have learned English since I was 5 years old
→ in the past/last +
时间段

We have had two English exams in the past two months近两个月来我们进行了2次
英语考试
Great changes have taken place in my hometown in the past ten years 近十年来我的
家乡发生了巨大的变化。

三 延续性动词与短暂性动词的用法