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。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。