4、定语从句分为限定性定语从句和非限定性定语从句。

3、先行词：被定语从句修饰、限定的词或短语，称为先行词。

2、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等。

关系词有三个作用：1、引导定语从句;2、代替先行词；3、在定语从句中担当一个成分。

1、定语从句：定语从句是由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，一般紧跟在它所修饰的先行词后面。

2. Skill aims:

　 (1). Distinguish the attributive clause from other clauses.

　 (2).　 Can use the attributive clause to speak and write fluently.

1.　 Knowledge aims:

　 (1). What is attribute?

　 (2). What is the attributive clause?

　 (3). How to use relative pronouns and relative adverbs?

10. 李明昨天没来上学，因为他病了。

　 Li Ming didn’t come to school _______ _______ ______ ______.

[练习答案]

9. 如果人人为保护环境做出贡献，世界将会变得更美好。

　 ______ ______ ______ _____ _______ to protecting the environment, the world will become much more beautiful.

8. 无论刮风下雨，我们的老师总是第一个到校。

_______ _______ windy or rainy, our teacher is always the first to get to school.

7. 他长大后相当一名记者。

　 He wants to be a journalist ______ _______ _______ _______.