高中語法專練：vi. as用作關系代詞

vi. as用作關系代詞

1. as與such連用，這時as = who/which。

I have never heard such a story as you tells .

我從來沒有聽到像你講的這樣的故事。

He is not such a fool as he looks .

他不像看上去的那么傻。

Such women as knew Tom thought he was handsome.

認識湯姆的婦女們都認為他很帥。

2. as與the same連用。

She wears the same kind of clothes as her mother usually does.

他穿著她媽媽通常穿的那種衣服。

Yesterday I bought the same dictionary as you have.

昨天我買了你有的那種辭典。

3. as和which都可以引導定語從句，先行詞是整個主句或者主句的一部分。

She was quite right, as Harry soon discovered.

正如哈里很快發(fā)現(xiàn)的那樣，她完全正確。

Taiwan is , as you know, an inseparable part of China.

你們都知道，臺灣是中國不可分割的一部分。

注意：

1）as從句經(jīng)常可以放句首，而which從句不能放句首。

As everyone knows, Taiwan belongs to China.

大家都知道臺灣屬于中國。

2）當主句是否定句時，多用as引導從句。

Greenland was not a continent, as people thought.

格陵蘭并不像人們所想像的那樣是一個大洲。

3）as意為“正如”，而which意為“這一點”。

4）當從句的謂語是see或know時，多用as引導從句。

He is an American, as I know from his accent.

他是美國人，我從他的發(fā)音就能聽出來。

5）當從句是被動語態(tài)時，多用as引導從句。句中的as從句也不能用which來代替。

As is reported in the newspapers, talk between the two countries are making progress.

正如報紙上報道的那樣，這兩國之間的談判正在取得進步。

專項練習

1. _______ is known to everyone, the moon travels round the earth once every month.

A. It

B. As

C. That

D. What

2. _______ is mentioned above, the number of the students in senior high schools is increasing.

A. Which

B. As

C. That

D. It

3. _______ is known to all, China will be an _______ and powerful country in 20 or 30 years' time.

A. That; advancing

B. This; Advanced

C. As; advanced

D. It; advanced

4. Also rail travel is very safe and I am never sick on a train, _______ I am on a ship!

A. when

B. while

C. as

D. and

5. _______ is reported in the newspapers, talks between the two countries are making progress.

A. It

B. As

C. That

D. What

6. Robert is good at English, _______ we all know.

A. because

B. which

C. as

D. since

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