1.The man is a worker.2.The man is speaking at the meeting.合并句子 : The man who is speaking at the meeting is a worker.概念 : 在复合句中修饰名词或代词 的句子 . (Attributive clause)Mary is a beautiful girl.Mary is a girl who has long hair.形容词作定语句子作定语 , 修饰 girl, 叫做定语从句Mary is a girl.Mary has long hair.合并为一个句子Mary is a girl who has long hair.先行词关系词定语从句Mary is a girl who has long hair.关系代词关系副词which, who, whom, whose, thatWhere, when 定语从句的用法 :当先行词是物时 , 用 which 或 that 引导 .These are the trees which were planted last year.当先行词是人时 , 用 who, whom, whose, that 引导 .who, whom, whose, that 用法区别 .who 作定语从句的主语 . The man who is speaking at the meeting is a worker.The man is a worker.The man is speaking at the meeting.分解作主语Whom 作定语从句的宾语 The woman whom they wanted to visit is a teacher.The woman is a teacher.They wanted to visit the woman.分解作宾语whose 作定语从句的定语 . I know the girl whose mother is a teacher.分解I know the girl.The girl’s mother is a teacher.作定语that 可以作定语从句的主语和宾语 .注意 : 关系代词作动词宾语时可 省略 . The woman (whom/ that) they wanted to visit is a teacher.下列情况只能用 that序数词或最高级 adj 修饰先行词时 Tom is the cleverest boy that I have ever known. all, everything, nobody 等不定代词作先行词时 Everything that we saw in this film was true. 1. I have a friend ________ likes listening to classical music.who/thatwhich/thatwhose3. The man ______ leg broke in a match used to be a football player.2. Yesterday Emily was wearing the new dress __________ I gave her.4. My parents live in a house__________ is more than 100 years old.5. The boy with _______ John spoke is my brother.which/thatwhom6. Kevin is reading a book __________ is too difficult for him.which/that7. Is there anything ________ you want to buy in the town.8.All ______ we can do is to study hard.9. The first one _____ stands up is a little boy.thatthatthat1. 这就是救了那个孩子命的医生 .This is the doctor who saved the boy’s life.2. 正在跑步的那个人是我的叔叔 .The man who is running is my uncle.3. 我喜欢可以随之而唱的音乐 . I like the music that I can sing along with.4. 住在隔壁的那个女的是一名教师 . The woman who lives next door is a teacher.