1、Unit 9 I like music that I can dance toGrammar Focus语法精讲定语从句1、定语从句的含义在复合句中，修饰某一名词或代词的从句叫作定语从句。被修饰的名词或代词，叫作先行词。从句放在所修饰词(即先行 词)之后，由关系代词或关系副词引导。2、定语从句的引导词定语从句的引导词可分为关系代词 that, which, who(宾格 whom,所有格 whose)和关系副词 where, when, why 等。我们现就关系代词作重点讲解。3、关系代词的作用关系代词 who, whom, whose, which, that 在 定语从句中的作用见下表：先
2、行词指代对象在句中所做成分人事物 人+事物是否可以省略作主语 who/that which/that that 不可省略作宾语 who(m)/that which/that that 可省略作定语 whose whose/of which不可省略(1). whowho 指人，在定语从句中作主语。如:The boy who speaks English very well is from America.那个英语说得很好的男孩来自美国。小小诊所：当关系代词在从句中作主语时，从句的谓语动词要与先行词保持主谓一致。如:(2).whomwhom 指人，在定语从句中作宾语，常可省略。如:The lady
3、(who/whom)he is talking to is his girlfriend.正在和他交谈的那位女士是他的女友。(3). whichwhich 指物，在定语从句中作主语或宾语，作宾语时常省略。如:The building which is being built will be used as a hospital.正在建设的这幢大楼将用作医院。(4).thatthat 可以指人，也可以指 物。指人时，相当于 who或 whom;指物时，相当于 which。that 作宾语时，常省略。如:Tomato is a v 如 etable that/which is good for h
4、ealth.西红柿是一种对健康有益的蔬菜。(指物，作主语)The woman athlete (that/who/whom)I read about in the newspaper has just won a gold medal.我在报纸上看到的那位女运动员刚刚获得了一枚金 牌。(指人，作宾语)(5).whosewhose 通常指人，也可以指物，在定语从句中作定语。如:Mr.Green lives in a house whose roof is red.格林先生住在一幢红屋顶的房子里。(指物)语法精练.用 who,whose,which 或 that 填空。1.A clock is a
5、 machine _ tells people the time.2.The panda is a kind of animal _can be found only in China.3.April 1st is the day _is called Fools Day in the West.4.Where is the woman _ watch was stolen yesterday?5.The woman_ you visited last week is a famous writer.把下列简单句改为定语从句，每空一词。6.Ill never forget the farm.I
6、 visited it in 2003.Ill never forget the farm _ _ _in 2003.7.The building is a middle school.It stands near the post office.The building_ _ near the post office _ a middle school.8.The man teaches us English.He comes from Hainan.The man _ _ _ _ comes from Hainan.9.The book is interesting.You lent it
7、 to me yesterday.The book_ _ _ _ _ yesterday is interesting.10.My grandfather doesnt like these songs.These songs are too long.My grandfather doesnt like these songs _ _ too long.参考答案：Grammar Focus.1.that/which2.that/which3.which/that4.whose5.who/whom/that.6.that/which I visited7.that/which stands;is8.who/that teaches us English9.that/which you lent to me10.that/which are
