主语从句表语从句

※That 引导的主语从句:

That引导一句话并不作意义:

That he didn’t come to my house made me upset.

That we shall be late for school is certain

※It引导的形式主语:

it is + adj +(for sb.) + clause/ it is +n + clause / it is + Ved+ clause

1 It is obvious to the students that they (should) get on well with others.

在It is necessary/important/surprising/strange/unbelievable/obvious等+that中，从句用should+动词原形且should可以省略。

2 It is our hope that all the countries will develop rapidly in peace.

It is announced that the plan has been successfully carried out.

在It is suggested/advised/requested/insisted/required/demanded等+that中，从句用should+动词原形且should可以省略。

3 It +特殊动词+从句。

It seems that/ occurred to me that/ happened that/appeared that…

※Whether/if 引导的主语从句

It is still a problem whether the old station should be replaced with a modern hotel or not.

Whether it is a good solution depends on how you look at it.

It is not important whether they have enough experience.

※Wh引导的主语从句

连接代词：who whom whose what whatever whoever whomever whichever

What they are going to do should be decided by themselves.

连接副词：when where how why whenever wherever however

Why he did that made us all puzzled.

※That和whether 引导的表语从句:

That起连接作用且不能省略。

The most vital thing is that he should watch what is happing in the campsite.

The problem is that the engine doesn’t work.

Whether起连接作用不能省略，意为是否。

What I was uncertain about was whether they could make it.

表语从句中whether不能换为if.

※Wh引导的表语从句

连接代词：who whom whose what whatever whoever whomever whichever

That is what I would do if I had the money.

Girls can be whatever they want to be just like boys.

连接副词：when where how why whenever wherever however

Why he did that made us all puzzled.

This is where I should have changed.

That’s when she heard the screaming.

The problem is however we can do the job better.

※其它连接词引导的表语从句：seem look appear sound taste feel remain等The little girl who got lost decided to remain where she was and wait for her mother.