1、在定語(yǔ)從句中, which/whom前常加介詞引導(dǎo)定語(yǔ)從句

例 He likes the book very much , for which he became famous ten years ago.

他很喜歡這本書(shū),10年前他因此書(shū)出了名。

例 He is a great scientist , from whom we learn a lot

因介詞不能提前的情況:有些動(dòng)詞短語(yǔ)比較固定,不宜分割,因此不能把介詞置于關(guān)系代詞之前。

如listen to, catch up with, take care of, hear of,be proud of , take part in , get along with, look forward to, make use of 等。

2、關(guān)系詞 whose, where,when前可加介詞

例 They respected the old man very much , with whose help they finished the work on schedule.

他們很尊敬這位老人,在他的幫助下他們接時(shí)完成了這項(xiàng)工作。

例 The boy climbed to the top of the tree , from where he could see the enemy in the distance.

這個(gè)男孩爬上了樹(shù)頂,從那里他可以看見(jiàn)遠(yuǎn)處的敵人。

3、在 which/whom前還可用復(fù)合介詞

mos tof which , all of whom , neither of which , in front of which ,half of whom, in which case, during which time等都是“復(fù)合介詞+關(guān)系詞”結(jié)構(gòu)。

例 He has two sons , neither of whom is interested in medicine.

他有兩個(gè)兒子,他們都對(duì)醫(yī)學(xué)不感興趣。

考點(diǎn)“短語(yǔ)介詞+關(guān)系代詞”引導(dǎo)定語(yǔ)從句時(shí),若短語(yǔ)介詞是表示位置的,而且定語(yǔ)從句的謂語(yǔ)動(dòng)詞是不及物的,定語(yǔ)從句往往用倒裝語(yǔ)序。

例 They will climb the mountain , at the foot of which lies a small village.

他們將要爬那座山,山腳下有個(gè)小村莊。