happen的用法

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。

Happen的三种用法与三点注意
一、happen是不及物动词。happen在初中英语教材中的用法主要有以下三种：
1. "sth.+happen+地点/时间"，意为"某地/某时发生了某事"。例如： An accident happened in that street.那条街发生了一起事故。 What's happening outside?外面发生什么事了？
2. "sth.+happen to+sb."意为"某人出了某事(常指不好的事发生在某人身上)"。例如：
A car accident happened to him yesterday.昨天他发生了交通事故。 What happened to you?(=What was wrong / the matter with you?)你怎么啦？
3. "sb.+happen+to do sth."意为"某人碰巧做某事"。例如： I happened to meet her in the street.我碰巧在街上遇见她。 It happened that I was out when he called.他来访时我碰巧不在。 二、同学们在使用happen时，以下三点情况值得注意：
1. happen为不及物动词，不能用于被动语态。例如，要表示"这个故事发生在去年。"不能说：The story was happened last year.但可以说：The story happened last year.
2. happen为短暂性动词，不能与表示一段时间的状语连用。例如，要表示"这事发生一年了。"不能说：This happened for one year.但可以说：This happened one year ago.
3. happen一般用来强调某事发生的偶然性。如要表示事先安排或有准备的事情或活动，则不能用happen，而要用take place。例如：
A sports meeting took place(=was held) in our school last week.上周我校举行了运动会。(不能说：A sports meeting happened in our school last

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.