英文中的疑问句

来源:百度知道 编辑:UC知道 时间:2024/05/13 10:20:30
什么时候用DO DID ARE 等.....

在英语中, 时态是英语语法中的难点之一,它种类多,容易混淆,下面笔者通过几种时态比较, 帮助英语学习者理解和掌握时态的用法。

1. 现在一般时与现在完成时

1) I come from Shanghai(上海人)

I have come from Shanghai(从上海来)

2) You read very well. (强调能力)

You‘ve read very well. (强调一次刚完成的动作)

3) I forget.(一时想不起来了)

I have forgotten.(仍没想起来,可能已回忆起来了)

4) The book is written in simple English. (表状态)

The book has been written in simple English.(表动态,已用英语写成)

5) Every time I see him, he‘s been reading. (两个动作不可能同时进行)Every time I have seen him, he‘s been reading. (强调两个动作同时进行)

6) He is gone. (强调状态)He has gone (强调动作和时间)

7) He won‘t come till the play begins. (演出开始时)

He won‘t come till the play has begun.(戏已开始)

8) After I leave school, I‘ll go to college. (两个动作紧密相接)

After I have left school, I‘ll go to college.(强调毕业后,两个动作可能有间隔)

9) I