when的用法四种句型 教你when的用法

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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.
【when的用法四种句型 教你when的用法】在劳累了一天之后我刚刚就寝 , 电话铃就响了 。

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