選 with which
不用that的情況 ,用which的情況
a) 在引導(dǎo)非限定性定語(yǔ)從句時(shí).
The tree,which is four hundred years old,is very famous here.
b) 介詞后不能用.
We depend on the land from which we get our food.
We depend on the land that/which we get our food from.
2) 只能用that作為定語(yǔ)從句的關(guān)系代詞的情況
a) 在there be 句型中,只用that,不用which.
b) 在不定代詞,如：anything,nothing,the one,all,much,few,any,little等作先行詞時(shí),只用that,不用which.
c) 先行詞有the only,the very修飾時(shí),只用that.
d) 先行詞為序數(shù)詞、數(shù)詞、形容詞最高級(jí)時(shí),只用that..
e) 先行詞既有人,又有物時(shí).
舉例：
All that is needed is a supply of oil.
所需的只是供油問(wèn)題.
Finally,the thief handed everything that he had stolen to the police.
那賊最終把偷的全部東西交給了警察.
as 可以用作關(guān)系代詞,在限制性定語(yǔ)從句中 ,多同such 或the same 連用,構(gòu)成 such.as
和 the same...as結(jié)構(gòu) .as 的先行詞可以是人或物.如
he is not such a fool as he looks.他貌似憨傻 實(shí)則不然.
the same ...as 表示同一類的 如 this is the same book as i bought yesterday.
the same...that 表示同一個(gè) 如 this is the same book that i am looking for.
不過(guò) 有時(shí)區(qū)別不大 可以互換
如 we drove out of the town by the same road as/that we had entered by.
我們從進(jìn)城的原路開車出城去.