1.

I still remember the day ________

I first came to school.

on which

2.

This is the reason ________ he was put in prison

for which

3.

In the office I never seem to have time until after 5:30 p.m., ______

time any people have gone home.

by which

4.

I saw a man,_________________

stood a bird.

on the head of whom

5.

Could you tell me __________

you’ve bought this coat?

for whom

6.

The rat is digging a tunnel _____________ it can reach the field to get food, through which

7.

The man, __________ I learned the news, is an engineer.

from whom

8.

The wolf _________ the sheep was killed was shot.

by which

9.

不定代词或数词 +of + which\ whom

China has a lot of islands, _____________ is Taiwan. one of which

1o.

There are a lot of students here,_____________ like the film.

none of whom

11.

名词 + of which 可代替 whose+ 名词，在定语从句中作定语。I saw some trees, the leaves of which (= whose leaves) were black with disease.

He mentioned a book,________________(=whose title) I’ve forgotten.

the title of which

12.

The driver was the man from whose room she had stolen the maps.

as 与 which 在非限制性定语从句中的区别

as 和 which 都可引导非限定，指代整个主句所表达的内容，在从句中作主语或宾语，但在用法上有区别。

1 ）相同

当从句位于主句之后， as 和 which 可互换。

The elephant is like a snake, as \ which everybody can see.

He is an Englishman, as \ which I know from his accent.

2) 不同

as 引导非限定位置较灵活，可位于主句之前、之中、之后，而 which 引非只位主句之后。

Robert is good at languages, as we all know.

Air, as we know, is a gas.

as ；引导非限制性定语从句常有“如同那样”的含义，

as we know\as is known to all

as we all can see, as has been said before\ above( 正如前文所述）

As has been pointed out( 正如所指出的那样） as might be imagined( 正如想象的到）， as is often the case( 情况常常是这样 as might be expected

such …as the same …as

as… as (as 作主语、表语、宾语）

I should like to use the same tool

as you used yesterday.

Don’t read such books as are not worth reading.

Repeat this as often as is necessary.

He is such an honest man that we

respect him.

He is such an honest man as we respect.

This is the same book that I lost.

This is the same book as I lost.