在復(fù)合句中,修飾某一名詞或者代詞的從句叫做定語(yǔ)從句.如：The story (that) you read is The Resue.定語(yǔ)從句放在先行詞的后面.引導(dǎo)定語(yǔ)從句的詞有關(guān)系代詞 that ,which ,who (賓格whom,所有格whose)和關(guān)系副詞 where,when,why.關(guān)系代詞或關(guān)系副詞在定語(yǔ)從句中充當(dāng)一個(gè)成分.
一、關(guān)系代詞（人,物）
1、This is the man (who) helped me .主語(yǔ),人
2、The girl (whom) I met looks like Lily.賓語(yǔ),人
3、A plane is a machine (that) can fly.主語(yǔ),賓格,人,物
4、This is a book (which) you want.主語(yǔ),賓格,物
5、The room (whose) window is red is mine.主語(yǔ),賓語(yǔ),人,物
二、關(guān)系副詞（狀語(yǔ)）
1、It happened on the day （when） I was out.時(shí)間
2、I recently went to the town (where) I was born.地點(diǎn)
3、The reason (why) he didn't come was that he missed his train.原因
初中的,應(yīng)該就只學(xué)關(guān)系詞引導(dǎo)的定語(yǔ)從句吧,好好理解上面,應(yīng)該也就可以了.不難的,努力哦@@～