1、定语从句定语的作用是_。名词，形容词，副词，介词短语等都可在句中充当定语。如：an apple tree a big bag people there students of class 5此外，定语也可由句子来充当，_叫定语从句，定语从句是定语的其中一种形式。修饰、限定名词或代词修饰、限定名词或代词在复合句中充当定语的句子在复合句中充当定语的句子从句：英语中的从句与普通的简单句一样，都是完整的句子，不同的是所有从句都需要有_来引导。如：The boy who was late is ill.I heard that he graduated from Harvard.What I said
2、is very important to you.引导词引导词定语从句的引导词分为两种：_和_。定语从句的引导词有一下作用：1.引导定语从句；2.指代前面的名词，代词（有时指整个句子）；3.在所引导的定语从句中充当句子成分（如作主语、宾语、定语、状语）。关系代词关系代词关系副词关系副词找出下列句中的定语从句，并分析引导词在定语从句中充当的成分。China is a country which has a long history.This is the book which you gave me before.The man who is giving the speech is my En
3、glish teacher.She is the manager whom you want to know.He has a friend whose father is a doctor.主语主语宾语宾语主语主语宾语宾语定语定语找出下列句中的定语从句，并分析引导词在定语从句中充当的成分。The book that he wrote is boring.The book that interests me a lot is written by Rolling.We dont know the reason why he didnt show up.Its the time when you
4、 have to make a choice.This is the village where he was born.John,as you know,is a famous writer.宾语宾语主语主语原因状语原因状语时间状时间状语语地点状语地点状语宾语宾语填写下方表格，总结定语从句各引导词的用法特点。引导词引导词可指代的先行词可指代的先行词的类型的类型在从句中充当在从句中充当可否省略可否省略thatwhichaswhomwhosewhowhenwherewhy人，物人，物主，宾主，宾作宾语时可作宾语时可物物主，宾主，宾作宾语时可作宾语时可用于固定结构中用于固定结构中人人宾宾可以可以人
5、，物人，物定定不可不可人人主主不可不可时间名词时间名词状状不可不可地点名词地点名词状状不可不可原因名词原因名词状状不可不可为下列定语从句填入适当的引导词。1.The boy didnt pass the English exam,_ made his parents angry.2.Mr Black,_ I like best,will return home soon.3.Are they the persons _ got onto the moon in 1969?4.Our two countries are neighbors _ friendship will last forev
6、er.5.Where is the boy _ arm was hurt by the window _ glass is broken?whichwhomwho/that whosewhosewhose为下列定语从句填入适当的引导词。6.The problem _ troubled him has already been solved.7.They work in a factory _ makes radio parts.8.The factory _ my father works is far away.9.Taiwan belongs to China,_ is known to
7、all.10.I will never forget the day _ I was admitted to Peking University.which/thatthat/whichwhereaswhen把下列每对句子合并成含有定语从句的主从复合句 Eg.The fan is on the desk.You want it.The fan which you want is on the desk.1.The man is in the next room.He brought books here yesterday.2.The magazine is mine.He has taken
8、 it away.3.The students will not pass the exam.They dont study hard.4.The woman is our English teacher.You saw her in the park.把下列每对句子合并成含有定语从句的主从复合句5.The letter is from my sister.I received it yesterday.6.The play was wonderful.We saw it last night.7.The train was late.It was going to Nanning.8.The
9、 boy is my brother.He was here a minute ago.9.The tree is quite tall.He is climbing it.把下列每对句子合并成含有定语从句的主从复合句1.The man is in the next room.He brought our textbooks here yesterday.The man who brought our textbooks here yesterday is in the next room.The man who is in the next room brought our textbook
10、s here yesteday.2.The magazine is mine.He has taken it away.The magazine which/that he has taken away is mine.3.The students will not pass the exam.They dont study hard.The students who dont study hard will not pass the exam.把下列每对句子合并成含有定语从句的主从复合句 4.The woman is our English teacher.You saw her in th
11、e park.The woman whom/that you saw in the park is our English teacher.5.The letter is from my sister.I received it yesterday.The letter which/that I received yesterday is from my sister.6.The play was wonderful.We saw it last night.The play we saw last night was wonderful.把下列每对句子合并成含有定语从句的主从复合句7.The
12、 train was late.It was going to Nanning.The train which/that was going to Nanning was late.8.The boy is my brother.He was here a minute ago.The boy that/who was here a minute ago is my brother.9.The tree is quite tall.He is climbing it.The tree that/which he is climbing is quite tall.五、限制性定语从句和非限制性定
13、语从句五、限制性定语从句和非限制性定语从句 限制性定语从句与主句关系密切，去掉从句，主句意义不完整，甚至不合逻辑，故不能删除；形式上不用逗号和主句隔开。The girl who is in red is my sister.非限制性定语从句和主句关系不十分密切，起补充说明作用，如果去掉，主句的意思仍然清楚，可用逗号和主句隔开。I like this book,which is given by Lucy to me as a birthday present.that 不能引导非限制性定语从句，即逗号后不用that.which 引导非限制性定语从句，除了可以指代名词或代词，也可指代前面整个句子
14、。The gold medals,which stand for glory,are the dream of all the players.He has been to Paris more than several times,which I dont believe.as 可引导限制性定语从句和非限制性定语从句。引导限制性定语从句时常用于固定结构中，如such.as,the same.as,asas等。Such books as you bought is useless.引导非限制性定语从句时即可指代名词或代词，也可指代前面整个句子，而且它的位置比which更加灵活，可放在句首。As
15、 is known to all,China is a developing country.He is from the south,as we can see from his accent.John,as you know,is a famous writer.介词关系代词引导的定语从句介词关系代词引导的定语从句1.关系代词在定语从句中做介词宾语时，常把介词提前于关系代词之前，即构成介词+关系代词引导定语从句。The school(that/which)he once studied in is very famous.The school in which he once studie
16、d is very famous.Tomorrow I will bring here a magazine(that/which)you asked for.Tomorrow I will bring here a magazine for which you asked.2.介词关系代词引导定语从句，关系代词只有两个：which和whom,指人时用whom,指物时用which；The man with whom you talked is my friend.The plane in which we flew to Canada is very comfortable.Isaac was
17、 an American writer 1 wrote around 480 books 2 included science and history books,and even books about the Bible and about Shakespeare.But his best known work was his science fiction stories.He had both an imagination 3 gave him the ability to write about future worlds and an amazing mind with 4 he
18、searched for explanations of everything,in the present and the past.His life began in Russia 5 he was born on 2 January,1920.It ended in New York on 6 April,1992 6 he died as a result of an earthquake 7 happened on a rainy day.At the age of nine,10 his mother was pregnant with her third child,Isaac started working in the candy store.
