请问,引导定语从句的引导词都有哪些?

1. 指人：who, whom, that
Is he the man who/that wants to see you? (who/that在句中作主语，不能省略。）
He is the man (whom/that) I saw yesterday.(whom/that在从句中作宾语，可以省略。）
2. 指物：which, that
The bank which/that was opened last week is a modern one.(which/that在句中作主语，不能省略。)
The briefcase (which/that) you are carrying is heavy. (which/that在从句中作宾语，可以省略。)
3. 所有格：whose (指物时可以同of which互换,指人和of whom 互换)
They rushed over to help the man whose car （the car of whom)had broken down.
Please pass me the book whose cover(of which the cover/the cover of which) is green.
注：根据句子意思和结构需要，必须使用适当的介词. 介词后关系词不能省;介词后不能用that:
Do you know the boy (whom/that) I talked to just now?
=Do you know the boy to whom I talked just now?
The palace to which I often pay a visit was built in the 17th century.
Yesterday I bought a pen with which I can write my composition.
关系副词：when, where, why (相当于“介词＋which”结构）
1. when 在从句中作时间状语
I still remembered the day (that/which) we first met on. (正)
I still remembered the day on that we first met. (误)
I still remembered the day on which/ when we met. (正)
比较：I still remember the day (that/which) we spent together.
2. where在定语从句中作地点状语
Shanghai is the place where /in which I was born.
Shanghai is the place (which/that) I was born in.
比较：Shanghai is the place (which/that) I visited last year.
3. Why在定语从句中作原因状语
Is this the reason why /for which he refused our offer?
比较： This is the reason (that/which) I gave to my teacher.
所以：判断使用关系代词或关系副词不能光看先行词是否是表示时间,地点,原因的名词，必须分析从句谓语动词与先行词的逻辑关系。如果关系词在从句中作状语则分别用when,where或why 等关系副词；如作主语或宾语，则仍用关系代词which或that。

关联词：
⑴关系代词（6个）：
①who 谁（主语）
②whom 谁（宾语）
③whose 谁的（定语）
④which 哪个（主语,宾语）
⑤that （主语,宾语）
⑥as （主语,宾语）
⑵关系副词（3个）：
①when 时候
②where 哪里
③why 为什么