Section VI Grammar

生命课堂-互动探究

语法知识-预习探究

一 我的观察

That he is still alive is a wonder.

It was a pity (that) you didn't go to the talk.

Whether it will do us harm remains to be seen.

Whoever comes is welcome.

Where I spend my summer is no business of yours.

What struck me was that they have all suffered a lot.

二 我的发现:

1) that在句中无词义，只起__________作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当__________。

2） 若that引导的主语从句直接位于句首，则that__________省略；若that引导的主语从句位于句末，而在句首使用了形式主语it，则that__________省略：

3）表"是否"时，用在句首的主语从句只用__________, 不用 __________

4）前面是主语从句，谓语动词用__________

三 我的讲解

1. 主语从句与形式主语it

　　有时为了考虑句子平衡，通常在主语从句处用形式主语it，而将真正的主语从句移至句末。分以下几种情况：

a. It +be +形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, important, necessary etc.)+that从句。如：

It is certain that she will do well in her exam.

It is probable that he told her everything.

　It is important that we should read more and more.

b. It +be +名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。如：It's a pity that we can't go.

It's no wonder that you are tired, you've been walking for hours.