一、从属连词that的省略

1.宾语从句中

（1）引导宾语从句的that，常可省略。

His mother said （that）Grant was a music critic.他母亲说格兰特是个音乐评论家。

（2）由and或but连接的两个宾语从句时，第一个从句的that可以省略，第二个不能。

Everybody could see （that）something happened and that Tom was frightened.

大家都明白出事了而且汤姆吓坏了。

He said （that）he had eaten nothing but that he was not hungry.

他说他没吃东西，但是他不饿。

（3）介词后that引导的宾语从句中不能省略that。

The book is unsatisfactory in that it lacks a good cover.

因为封面设计不好，这本书不令人满意。

I know nothing about him except that he is from the south.

除了知道他是南方人，其余一概不知。

（4）it作形式宾语的句式中，that引导从句作真正宾语时，不能省略。

We considered it a pity that you could not come with us.

你不能跟我们一起来，我们都觉得可惜。

We think it highly probable that he is dead.我们想他已经死了，这是非常可能的。

We consider it absolutely necessary that he should improve his work.

他应当改进他的工作，我们认为这是绝对必要的。

2.主语从句、表语从句、同位语从句中that不能省略

【辨析】很显然他说了谎。

【误】He has told lies is quite clear.

【正】That he has told lies is quite clear.

【正】It is quite clear that he has told lies.