when的用法四种句型时态例句（when的用法四种句型）

大家好，小乐来为大家解答以下的问题，when的用法四种句型时态例句，when的用法四种句型很多人还不知道，现在让我们一起来看看吧！

when的用法四种句型：be doing sth…when；be about to do sth…when；hardly…when；had just done…when。

1、be doing sth…when

例：He was still smiling when the door opened and his wife came in.

他正笑着的时候门突然开了，他妻子走了进来。

2、be about to do sth…when…

例：We were about to start when it began to rain.

我们刚要出发，天就开始下雨了。

3、had not done sth…when…/hardly…when…

例：He had not fallen asleep when the telephone rang.

他刚要入睡电话就响了。

4、had just done…when…

例：I had just gone to bed after a very hard day when the phone rang.

在劳累了一天之后我刚刚就寝，电话铃就响了。

本文到此结束，希望对你有所帮助。

标签： when的用法四种句型