关于so often happen的用法As so often happens when under pressure,he tends to concentrate most of his attention on the subject matter.这里"As so often happens when under pressure"是As 引导的什么成分?happens表示这个是一个从句,

来源：学生作业帮助网编辑：作业帮时间：2024/04/28 04:05:54

关于so often happen的用法As so often happens when under pressure,he tends to concentrate most of his attention on the subject matter.这里"As so often happens when under pressure"是As 引导的什么成分?happens表示这个是一个从句,
关于so often happen的用法
As so often happens when under pressure,he tends to concentrate most of his attention on the subject matter.
这里"As so often happens when under pressure"是As 引导的什么成分?happens表示这个是一个从句,但又没有主语...难道是倒装句省略it 主语?

关于so often happen的用法As so often happens when under pressure,he tends to concentrate most of his attention on the subject matter.这里"As so often happens when under pressure"是As 引导的什么成分?happens表示这个是一个从句,
As相当于which,在句首不能用which只能用as,这是引导了个定语从句.
他趋向于把大部分注意力放在主要问题上,这在有压力的情况下经常发生.（在有压力的情况下他经常这样做）
He tends to concentrate most of his attention on the subject matter,as so often happens when under pressure.
再把so often放到happens后面就更容易理解了.

efg

关于so often happen的用法As so often happens when under pressure,he tends to concentrate most of his attention on the subject matter.这里As so often happens when under pressure是As 引导的什么成分?happens表示这个是一个从句, happen to 的用法 happen的用法 happen 的用法 happen的用法. 问个关于happen的用法的问题.happen.不是happen to do sth.那么碰巧去做,碰巧正做,和碰巧已做.是不是分别是happen to do,happen to doing,happen to have been? happen的用法,尽量具体. happen的用法具体的用法 happen 和take place 的用法区别 come about和 happen用法的区别求：happen的用法,麻烦详细一点, often 的用法 often的用法 how often的用法 happen at 用法happen at + happen to的用法happen to to 为介词时的用法. 关于SO的用法!so+主语+助动词so+助动词+主语neither+主语+助动词neither+助动词+主语关于neither,either,too,so,also的用法具体一些