(= whose name)

4、作表语只用that ，它既可以指人，也可以指物，但时常省略。

He is no longer the man that he used to be.

This is no longer the dirty place (that) it used to be.

难点:as

引导限定性定语从句，指代被 the same, such, as, so 等修饰的名词

Don't talk about such things as you don't understand.

We're facing the same problems as we did years ago.

It is as pleasant a film as I have ever seen.

Here is so big a stone as no one can lift.

宜用that引导的定语从句

1）序数词或最高级形容词修饰先行词时，要用that。

(1) The first English novel that I read was A Tale of Two Cities by Charles Dickens.

2) all, everything, nothing, something, anything 等不定代词作先行词时用that。

Everything that we saw in the factory greatly interested us.

3) 人和物合作先行词时，要用that。

We were talking about the persons and things that we remembered in our school.

4) 先行词前有the only, the very, the right, the same等修饰时，要用that。

It is the very skirt that suits me well.

5) 在疑问词who、which、what开头的句子中，要用that

Whoever that is content with a little progress can't make big achievements.

6) 关系代词在定语从句中作表语只用that

He is no longer the man that he used to be.

This is no longer the dirty place (that) it used to be.