Unit4语法及练习：定语从句 2022-2023学年鲁教版英语九年级全册

Unit 4 I like music that I can dance to. ☆单元语法:定语从句 1、 概念 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先行词。引导定语从句的词叫作关系词。 定语从句一般放在先行词的后面。 2、 引导定语从句的关系词 1、 关系词位于先行词与定语从句之间,通常有三个作用:①引导定语从句;②代替先行词;③在定语从句中充当一个成分(主语、宾语、定语等)。 2、 常见关系词 关系词 指代对象 语法功能 例句 关系代词 who 指人 作主语或宾语 The boys who are playing football are from Class One. whom 作宾语 Mr. Smith is the person with whom I am working. whose 指人或物 作定语 The boy whose father works abroad is my classmate. that 作主语或宾语 It’s a computer that costs six thousand yuan. which 指物 The book which I gave you was worth $10. 备注:①关系代词that既可指人也可指物,指人时可与who互换,指物时可与which互换。②当关系代词代替先行词在从句中作主语时,从句的谓语动词要与先行词的单复数形式保持一致。 关系副词 when 指时间 作状语 I will never forget the day when we met. where 指地点 This is the city where I was born. why 指原因 Can you tell me the reason why you are late for school? 3、 当先行词是物时,一般情况下用that或which均可,但以下情况只能用which 关系代词前有介词时 This is the house in which they lived last year. 先行词本身为that 时 What’s that which was put in the box? 4、 当先行词是物时,一般情况下用that或which均可,但以下情况只能用that 当先行词是