切记,这类主语从句不可以使用先行it结构。
上述第二类主语从句与第三类主语从句尽管在形式上十分相似,但实际上是不同的。第二类结构中用连接代/副词引导的从句系由特殊疑问句转化而来,以whether/if引导的从句系由一般疑问句转化而来,自然含有疑问的意味,例如:
When they will have the sports meet is still a question.
When will they have the sports meet?
Who he is doesnt concern me.
Who is he?
Whether he will join us wont make too much difference.
Will he join us?
而第三类结构中的主语从句则没有疑问的意味。
试比较下列各句:
① What caused the accident is a complete mystery.
② What caused the accident was a broken bottle.
③ What she looks like doesnt matter.
④ What shed like is a digital watch.
上述各句中尽管都有一个以what引导的主语从句,但其意义不尽相同;第①和③句中的主语从句系由What caused the accident?和What does she look like?转化而来,所以可以改成:
It is a complete mystery what caused the accident.
【高中英语语法-主语从句与先行it】相关文章:
最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29