介詞加關(guān)系代詞引導(dǎo)的定語從句關(guān)系代詞在定語從句中做介詞賓語時(shí):從句常由介詞加關(guān)系代詞引導(dǎo),若介詞放在關(guān)系代詞前,關(guān)系代詞指人時(shí)用whom,不可用who或者that;指物時(shí)用which,不能用that;關(guān)系代詞是所有格時(shí)用whose。介詞加關(guān)系代詞”前可有some,any,none,both,all,neither,most,each,few等代詞或者數(shù)詞。注意:含有介詞的動(dòng)詞短語一般不拆開使用,如:lookfor,lookafter,takecareof等