I happened_______(sleep) when he came back.顺便问一下happen的用法

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Ihappened_______(sleep)whenhecameback.顺便问一下happen的用法Ihappened_______(sleep)whenhecameback.顺便问一下happe

I happened_______(sleep) when he came back.顺便问一下happen的用法
I happened_______(sleep) when he came back.
顺便问一下happen的用法

I happened_______(sleep) when he came back.顺便问一下happen的用法
to sleep
碰巧
happen
hap 运气+ -en 使成=make
vi
发生
The accident happened outside my house.
这个事故发生在我家房子的外面.
(与to连用)碰巧
I happened to be in the market yesterday when a fire started.
昨天发生火灾时,我正好在市场上
(与to连用)偶然发生;巧遇
I happened to be out when he called.
他来访时,恰巧我出去了.
(与on,upon连用)巧遇;偶然发现
I happened on just the thing I had been looking for.
我偶然发现了我所要找的东西.
happen to
发生(某事件);对…产生影响
A bad accident happened to that family.
那个家庭发生了不幸的事情.

happen是不及物动词,它的用法常见的有如下几种情况:
1. 表示“某地(某时)发生了什么事”,常用“sth.+ happen +地点/时间”这一结构来表达,此时主语应是事情。例如:
The story happened in 2003. 这个故事发生在2003年。
An accident happened in that street. 那条街上发生了一起事故。 ...

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happen是不及物动词,它的用法常见的有如下几种情况:
1. 表示“某地(某时)发生了什么事”,常用“sth.+ happen +地点/时间”这一结构来表达,此时主语应是事情。例如:
The story happened in 2003. 这个故事发生在2003年。
An accident happened in that street. 那条街上发生了一起事故。
2. 表示“某人出了某事(常指不好的事)”,要用“sth.+ happen+to sb.”这一结构来表达。例如:
A car accident happened to her this morning. 今天上午她发生了交通事故。
What happened to you? 你怎么啦?
3. 表示“某人碰巧做某事”,要用“sb.+ happen+ to do sth.”这一结构来表达。例如:
I happened to meet a friend of mine in the street yesterday. 昨天我碰巧在街上遇到了我的一个朋友。
4. happen表示“碰巧或恰巧发生某事”时,还可用“It happens / happened that...”这一结构来表达。例如:
It happened that Brian and Peter were at home that day. 碰巧那天布莱恩和彼得在家了。
It happened that he had to take part in a meeting that afternoon. 碰巧那天下午他不得不参加一个会议。
注:that从句中的主语是人时,此种结构可以与“sb.+ happen + to do sth.”结构互换。例如:
It happened that Brian and Peter were at home that day. = Brian and Peter happened to be at home that day
所以是HAPPEN +TO DO STH。 碰巧。

收起

to sleep 他回来时我正好在睡觉
happen to do碰巧做某事

to sleep
碰巧

to be sleeping; 这才是正在睡觉啊,同志们