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(rèn)識湯姆的婦女們都認(rèn)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(dǎo)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)??梢苑啪涫祝鴚hich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(dāng)主句是否定句時,多用as引導(dǎo)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(dāng)從句的謂語是see或know時,多用as引導(dǎo)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(dāng)從句是被動語態(tài)時,多用as引導(dǎo)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(jìn)步。
專項練習(xí)
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
答案速查 1—6 BBCCBC