1.定语从句与名词性从句的互换

有的时候，我们可以把一个先行项和关系词合并成一个连接词引导的名词性从句。常见的有“先行项+that=what”，“先行项+who=whoever”，“anything+ that=whatever”，“先行项+when=when”，“先行项+where=where”，“先行项+why=why”，“the way(+that/in which)=how”等。

(1)合并为what引导的名词性从句。

That's the thing that we're worrying about．(定语从句)

=That's what we're worrying about．(表语从句)

那就是我们正在担心的事。

All that we need is more time．(定语从句)

=What we need is more time．(主语从句)

我们所需要的是更多的时间。

Anyone who spits in public will be punished here．(定语从句)

Whoever spits in public will be punished here．(主语从句)

任何在公共场合吐痰的人都要受到处罚。

He is no longer the man(that)he used to be．(定语从句)

=He is no longer what he used to be．(表语从句)

他不再是以前的那个人了。

Two thousand years ago silk was traded along the place that is now called the Silk Road．(定语从句)

=Two thousand years ago silk was traded along what is now called the Silk Road．(人教大纲版高三第250页)(宾语从句)

2 000年前，人们在现在被誉为丝绸之路的地方进行丝绸贸易。

(2)合并为whoever，whomever和who sever引导的名词性从句。

I'll thank the person who helped my son．(定语从句)

=I'll thank whoever helped my son．(宾语从句)

The man whom you lent the money to was not honest．(定语从句)

=Whomever/whoever you lent the money to was not honest．(主语从句)

Remember to return the book to the person whose name is on it．(定语从句)

=Remember to return the book to who sever name is on it．(宾语从句)

记得去还书给这个人，名字在书上。

You may vote anyone whose side you like．(定语从句)

=You may vote who sever side you like．(宾语从句)

你可以投票选你喜欢的任一方。

(3)合并为whatever引导的名词性从句。

Anything that you want makes no difference to me．

=Whatever you want makes no difference to me．

不管你要什么，都跟我没关系。

(4)合并为when引导的名词性从句。

The time when they will start out has not been decided yet．(定语从句)

=When they will start out has not been decided yet．(主语从句)

他们什么时候动身还没有决定下来。

1992 was the year when my son was born．

=1992 was when my son was born．

1992年是我儿子出生的那一年。

(5)合并为where引导的名词性从句。

The place where she lives is not known yet．(定语从句)

=Where she lives is not known yet．(主语从句)

她住在什么地方，大家还不知道。

That is the place where Xiao Lin was born．(定语从句)

=That is where Xiao Lin was born．(表语从句)

那就是小林出生的地方。

(6)合并为why引导的名词性从句。

Perhaps that is the reason why few foreigners know about this Chinese art form．(人教大纲版高一下第53页)(定语从句)

=Perhaps that is why few foreigners know about this Chinese art form．(表语从句)

也许正是因为这个缘故，外国人很少了解这一门中国艺术。

(7)合并为how引导的名词性从句。

This is the way she did it．(定语从句)

=This is how she did it．(表语从句)

她就是这样做这件事的。