概念概念:在复合句中修饰名词或代词在复合句中修饰名词或代词 的句子的句子. (Attributive clause)Mary is a beautiful girl.Mary is a girl who has long hair.形容词作定语形容词作定语句子作定语句子作定语,修饰修饰girl, 叫做叫做定语从句定语从句1. I have a friend _ likes listening to classical music.who/thatwhich/that2. Yesterday LinglingYesterday Lingling was wearing the new dress _ I gave her.3.Hes the boy _won the photo competition last year!who/that5.This is the man_helped me.4. My parents live in a house_ is more than 100 years old.which/that6. Daming is reading a book _ is too difficult for him.which/thatwho/that先行词先行词关系词关系词从句从句Mary is a girl who has long hair.指代人指代人指代物指代物that ，who Which,that 定语从句的用法定语从句的用法: :当先行词是物时当先行词是物时, , 用用which 或或that引导引导. .These are the trees which were planted last year.当先行词是人时当先行词是人时, , 用用who, that引导引导.who, that用法区别用法区别.who 作定语从句的作定语从句的主语或宾语主语或宾语. The man who is speaking at the meeting is a worker.The man is a worker.The man is speaking at the meeting.分解分解作主语作主语that 可以作定语从句的可以作定语从句的主语和宾语主语和宾语.注意注意: : that/whothat/who作动词宾语时可作动词宾语时可省略省略. . The woman (who/ that) they wanted to visit is a teacher.7. 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.thatthatthat13.Ive never heard of the people and things _ you talked about just now.12.This is the very person _ I am looking for.11.Who is the girl _ is standing under the tree?10.Tom is the cleverest boy _ I have ever known.thatthatthatthat3. 只能用只能用that的情况的情况 序数词序数词或或形容词最高级形容词最高级修饰先行词时修饰先行词时 Tom is the cleverest boy that I have ever known. This is the first play that I have seen since I came here. Everything that we saw in this film was true. 先行词是先行词是all, few, little, much,the one,something,anything,everything,nothing等等时。时。Well do all that we can to protect the endangered animals and plants. 先行词被先行词被the only, the very, the last修修饰时。饰时。This is the very person that I am looking for. 主句已有主句已有who或或which时时Who is the girl that is standing under the tree?Which is the machine that we used last Sunday. 当先行词同时指当先行词同时指人人和和物物时时Ive never heard of the people and things that you talked about just now.1.An old blind man was walking across the road.2.The man walked with a stick.合并句子合并句子: :合并成含有定语从句的合并成含有定语从句的复合句。复合句。 An old blind man who walked with a stick was walking across the road.1.The woman is Xiaomings mum.2.The woman was standing next to Xiaoming. The woman who was standing next to Xiaoming is Xiaomings mum.1.穿裙子的那个女孩是小明的妹妹穿裙子的那个女孩是小明的妹妹.The girl _ is Xiaomings sister.2.正在拍照的那个男人是小明正在拍照的那个男人是小明的叔的叔叔叔.The man _is Xiaomings uncle.who wears a skirtwho was taking photos3. 他的叔叔拍了一张他们聚在一他的叔叔拍了一张他们聚在一起的照片起的照片. His uncle took a photo which they got together 4. 穿红衣服的那个女士是老人的女穿红衣服的那个女士是老人的女儿儿. The woman who wears red coat is the old mans daughter.