Question

happen能用于被动语态吗 what happens to trees in differen

happen能用于被动语态吗 what happens to trees in different seasons?这句是对主语提问吗？为什么么没有does引导 求赐教

Answer 1

happen是不及物动词，没有被动语态，不可以接宾语，也就不存在把宾语提前变成被动语态的了。
what happens to trees in differen可以是what happens to trees in differen seasons。意思是树木在不同的季节会发生什么变化。
happen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.

Answer 2

1.happen解释：vi. 发生；碰巧；偶然遇到
从意思和词性看出happen只能做不及物动词，不可以接宾语，也就不存在把宾语提前变成被动语态的了。例如：
We do not want that to happen.
我们不希望发生这样的事。
When bad things happen, what should we do?
当坏事情发生了，我们应该做什么？
How does that happen?
那是怎样发生的？
There are some things that you can only understand when they happen
to you.
事实上有些事情直到真的发生在你身上你才能了解你自己的感受。
Those who happen to hear it may suffer. But the guy who’s enjoying himself in themisty bathroom can't control himself.
浴室歌声无法发行，偶然听到的人也许耳朵要受罪，可是那个在水雾中温暖松弛的家伙，他无法控制自己啊。
2. What happens to trees in different seasons?这个问句是对主语提问，所以不用加助动词。例如：
Who knows the result of the exam？谁知道考试的结果。
Who got him to do that?
他这样干， 是谁授意的?

Answer 3

happen没有被动语态；