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1、一、定语从句的概念在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。1. I have an apple. An apple is red.I have an apple that/which is red. (that/which)修饰先行词 an apple 先行词 关系词2.I like some friends. Some friends like sports.I like friends who like sports. （who）修饰先行词 friends 先行词 关系词3.I like music. The music i
2、s quiet. I like music that/which is quiet.( that/which修饰先行词music) 先行词 关系词先行词：被定语从句修饰的名词或代词叫先行词。关系词：引导定语从句的关联词称为关系词，关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等，关系副词有where, when, why,how等。把下列句子连成定语从句1I like music. The music is loud and exciting._.2. She loves movies. The movies are romantic.
3、 _.3. Tony likes music. He can dance to the music._.4. I love singers . The singers write their own songs. _5. He is the man . I me t the man yesterday. _6. I like weather. The weather is warm / sunny /warm._7. I like animals . The animals are friendly / cute . _.8. I like movies .The movies are gre
4、at / funny /scary. _.9. Lucy likes the program. The program is interesting. _.10. My father likes the program. The program has news in the world. _.11. I still remember the day. I spent the day with you. _.12. I will never forget the three years. We spent the three years here. _.13. I still remember
5、 the day. During the day you left for Beijing. _.14. I will never forget the three years. During the three years we studied here. _.15. The boy studies very hard. His father is a doctor. _.16. Do you like the book ? Its color is yellow? _.17. The classroom is mine. Its window is open. _.18. This is
6、the school. We visited the school last year. _.19. Do you remember the house? We built the house last year._.20. This is the school. My mother works in the school. _. _. _.21. Do you remember the house? We lived in the house. _? _? _?22. Who is the teacher ? Li Ming is talking to teacher. _? _?23. C
7、ould you tell me the reason? Why are you late? _?二、定语从句的关系词 引导定语从句的关系词有关系代词和关系副词，常见的关系代词包括that， which， who（宾格whom，所有格whose）,as 等，关系副词包括where， when， why等。关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。三、定语从句的分类根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去，非限制性定语从句主句与从句之间有逗号分开，起补充说明作
8、用，如省去，意思仍完整。四、关系代词的用法 1.that 既可以用于指人，也可以用于指物。在从句中作主语或宾语，作主语时不可省略，作宾语可省略。例如： Mary likes music _ is quiet and gentle.玛丽喜欢轻柔的音乐。（that作主语） The coat （_） I put on the desk is blue.我放在桌子上的那件外套是蓝色的。（that作宾语） 2.which用于指物，在句中作主语或宾语，作主语不可省略，作宾语可省略。例如： The building _ stands near the train station is a supermark
9、et.位于火车站附近的那座大楼是一家超市。（作主语） The film （_） we saw last night was wonderful. 我们昨天晚上看的那部电影很好看。（作宾语） 3.who，whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom， 也可省略。例如： The girl _ often helps me with my English is from England.经常在英语方面帮助我的那个女孩是英国人。（作主语） Who is the teacher （_） Li Ming is talking to？ 正在与李明谈话的老师是谁？
10、（作宾语） 4.whose通常指人也可指物在定语从句中做定语，表示所有。 (1) He has a friend _ father is a doctor. 他有一个朋友的父亲是医生. (2) I once lived in a house _roof has fallen in.我曾经住在一座现在已经倒塌的房子中. (3) The classroom _ door is broken will soon be repaired.那个门被打破的教室不久会被修复。 (4) Do you like the book _ color is yellow?你喜欢颜色是黄色的书吗? 5.As 的用法: 1. the same as；suchas 中的as 是一种固定结构, 和一样。 I have got into the same trouble as he (has). 例2. as可引导非限制性从句，常带有正如。 As we know, smoking is harmful to ones health. As is known, smoking is harmful to ones health. As是关系代词。例1中的as作know的宾语； 例2中，它充当从句的主语，谓语动词know要用被动式。注意： （1）当定语从
