现在完成时是什么?怎么用?举些例子.
7个回答

现在完成时表一个动作已经做完.

和一般现在时比较起来更侧重对现在造成的影响.

一般是. have done sth.

Eg;

Mum,can I go out to play basketball.?I have finished my homework.

妈,我可以出去打篮球了吗.作业已经做完啦.

Eg:

I saw this film yesterday.

我昨天看过这电影.(强调性没那么强.只是单纯的陈述.)

Have you saw the film KINGKONG.?

-I have saw this film yesterday.

我昨天已经看过这电影了.(强调对现在造成的影响.已经看过了.)