who (whom), which, that 在定语从句作宾语
1. The old man (who/whom/that) he helped yesterday is my grandfather.
2. This is the pen (which /that) he bought yesterday.
3. The girl to whom I spoke is my sister.
4. The topic in which Jim is interested is pop music.
5. We went to Jim’s party, which we enjoyed very much.
6. The thief handed in everything that he stole to the policeman.
1. 在句中做定语修饰某个名词性成分的从句叫定语从句。被修饰的名词叫 ，而定语从句通常出现在先行词之后，由 引出,定语从句分为限定性定语从句（例1-例4）和非限定性定语从句（例5）。
2.如果先行词是人并在定语从句中作宾语（如例1）那么可用关系代词： , ；关系代词可以省略。,
3. 如果先行词是物，在定语从句中作宾语（如例2）那么可用关系代词 , ；关系代词可以省略。
4. 关系代词前有介词的（如例3和例4），关系代词用 或 ，且不能省略，不用that 和 who。
5. 非限定性定语从句是先行词的附加说明，通常用逗号隔开（如例5），表示物时，只用 __________，不用that。
6. anything, nothing, everything, all等作先行词时，或者先行词被序数词、形容词最高级修饰时，关系代词只能用 （如例6）。
Keys: 1. 先行词；关系代词 2. who; whom; that 3. which; that 4. whom; which 5. which 6. that
1. He has a friend whose father is a doctor.
2. The dictionary whose cover has come off is mine. （whose cover= the cover of which）
关系副词where, when, why引导的定语从句
1. I still remember the day when I first came to the school.
2. Guangzhou is the city where I was born.
3. Please tell me the reason why you missed the plane.
1. 关系副词 指时间，常用于time, moment, day 之后，在定语从句中作时间状语（如例1）。
2. 关系副词 指地点，常用于place, house, street, country之后，在定语从句中作地点状语（如例2）。
3. 关系副词 _________ 指原因，在定语从句作原因状语，常用于reason之后 （如例3）。
Keys: 1. when 2. where 3. why
1. The place ___________they visited is very famous.
2. Is there anything _______ I can do for you?
3. The boy __________ you met just now is my friend.
4. The school in ________ he once studied is very beautiful.
5. I’d like a room _______ window faces south.
6. I don’t know the reason _______ he looks so tired.
7. Later, people began to settle in the places _______ food and water were plentiful (充足的).
8. That happened on the day _________ I saw you.