定語從句是高中英語學習的重要語法專案之一,它的結構和用法比較複雜,是高中階段英語學習的一個重點，分享了高三定語從句複習，一起來看看吧！
一、關係代詞用that，which引導的定語從句
1.通常只用that的情況
當先行詞為all, few, little, much, anything, nothing, everything, none等時；或者當先行詞被序數詞、形容詞的最高階和 all, any, few, little, no, the only, the very, the last 等詞修飾時，定語從句的關係代詞要用that；如果定語從句修飾兩個先行詞，其中一個指人，一個指物，那麼定語從句的關係代詞也應用that。
2.通常只用which的情況
當引導非限制性定語從句，指物或指代前面整個句子的內容,或放在介詞後面指物時，只能用which。
I refuse to accept the blame for something that was someone else’s fault.
After graduating from college, I took some time off to go travelling, which turned out to be a wise decision.
二、who，whom，whose引導的定語從句
1.如果先行詞是指人的不定代詞，如：anyone, anybody, everyone, everybody, someone, somebody, nobody, one, ones, those, all等，關係代詞在定語從句中作主語時用who，作賓語時用whom/who。
2.在非限制性定語從句中，關係代詞指人且作主語時用who，作賓語時用whom/who
3.在定語從句中可以作定語的關係代詞只有whose，表示物時相當於"the + 名詞 + of + which"或"of + which + the + 名詞"；表示人時相當於"the + 名詞 + of + whom"或"of +whom + the + 名詞"。
I’ve become good friends with several of the students in my school who I met in the English speech contest last year.
The newly-built cafe, the walls of which are painted light green, is really a peaceful place for us, especially after hard work.
三、where，when，why引導的定語從句
where，when，why的`意義相當於"介詞+ which"。具體而言，where 相當於 "in / at + which"，when相當於"at / in / during + which"，why相當於"for + which"。
1.關係副詞 where引導定語從句時，只能在定語從句中作地點狀語，定語從句修飾的先行詞必須是表示地點的名詞。
2.關係副詞 when引導定語從句時，只能在定語從句中作時間狀語，定語從句修飾的先行詞必須是表示時間的名詞。
3.關係副詞why引導定語從句時，只能在定語從句中作原因狀語，定語從句修飾的先行詞必須是表示原因的名詞。
The girl arranged to have piano lessons at the training centre with her sister where she would stay for an hour.
Is this the reason he explained at the meeting for his carelessness in his work?
四、"介詞+關係代詞"結構的用法
當關系代詞作介詞賓語時，就出現了"介詞+關係代詞"的結構引導定語從句的現象。當先行詞指物時用"介詞+ which"， 指人時用 "介詞 + whom"，且關係代詞不能省略。
I saw a woman running towards me in the dark. Before I could recognize who she was, she had run back in the direction from which she had come.
五、the way後面的定語從句的引導詞
the way 作先行詞且其後定語從句的引導詞在從句中作狀語時引導詞用in which,that或者省略。
He made another wonderful discovery, which I think is of importance to science. 本句中的I think 是插入語，which 引導非限制性定語從句。辨別含有插入語的定語從句正確的方法是：去掉插入語後，原句的結構仍然完整。常見的插入語有： I think（suppose, believe, imagine）, in my opinion, to tell the truth等。
速判關係代詞與關係副詞
做題的關鍵是把先行詞放到從句中，看它在從句中所作的成分。
1.把先行詞放到從句中後,如果不需要再添詞從句就是完整的，那先行詞就在從句中作主語、賓語、表語或定語（表所屬關係），此時應選擇關係代詞（who, whom, that, which, whose)。
2.把先行詞放到從句中後,如果需要添介詞才能使從句完整，那麼先行詞在從句中作狀語，應選擇關係副詞（where作地點狀語，when作時間狀語，why作原因狀語）。
