2024届中考英语专题复习之定语从句用法归纳定语从句是英语语法中的一个重要概念，它通常由关系代词who、whom、whose、which或关系副词when、where、why引导。
定语从句可以用来修饰名词或代词，起到补充说明的作用。
在初中阶段，学生需要掌握定语从句的用法和特点，以便更好地理解和运用英语语法。
一、定语从句的类型关系代词定语从句关系代词who、whom、whose、which和that都可以引导定语从句，但它们的使用有所不同。
who引导的定语从句用来修饰人，例如:She is the person who gave me the book.(她是给我书的人。
)whom引导的定语从句用来修饰人或物，例如:He is the man whom I saw yesterday.(我是昨天看见的那个人。
)whose引导的定语从句用来修饰人或物，例如:This is the house whose windows were broken last week.(这是上周被打破了的窗户的房子。
)which引导的定语从句用来修饰名词，例如:I saw the movie which was directed by my favorite director.(我看了我最喜爱的导演执导的电影。
)that引导的定语从句用来修饰名词或代词，例如:That is the building which I want to visit.(那就是我想参观的建筑。
) 关系副词定语从句关系副词when、where、why也可以引导定语从句，但它们的使用有所不同。
when引导的定语从句用来修饰时间，例如:I met her when she was a student.(我见她的时候她还是学生。
)where引导的定语从句用来修饰地点，例如:I will meet you where we agreed.(我会在我们商定的地点见你。
一、定语从句的概念： 在复合句中修饰名词或代词的从句叫做定语从句。
定语从句有两要素，其一，被定语从句修饰的名词或代词叫做先行词。
定语从句必须放在先行词之后，对其先行词起限定作用。
（引导定语从句）↑1. People who have the highest EQ are the most successful↓(被修饰词)2.定语从句的分析步骤: ⑴ 找出先行词⑵⑶ 对号入座选关系词二、关系代词1. 指人的关系代词:<1> 先行词在从句中作主语eg: A doctor is a person who / that looks after people’s health.<2> 先行词在从句中作宾语eg: Mr White invited many friends to his party (who / whom / that) he respected much.<3> ：⑴ 指人的关系代词中，在从句中充当主语的是who 和that,且在句中不可以省略。
⑵ 指人的关系代词中, 在从句中充当宾语的是who ，that 和whom,且可以省略。
2.指物的关系代词:<1> 先行词在从句中作主语eg: The river which / that runs through the city brings us lots of pleasure.<2> 先行词在从句中作宾语eg: The book (which / that) you just laid on the shelf is mine.<3> ：如何选定语从句中的关系词：⑴ 指物的关系代词中，在从句中充当主语的是which 和that,且在句中不可以省略。
⑵ 指物的关系代词中, 在从句中充当宾语的是which 和that ，且可以省略。
【练习1】区分下列句子是宾语从句还是定语从句。
定语从句一、概念1.在复合句中，修饰或的从句叫作定语从句。
核心概念1.被定语从句修饰的名词或代词叫做定语从句必须放在先行词之后，对其先行词起限定作用。
2.关系词：连接和的词，分为和。
关系代词：that, , ,whom,whose,as等关系词的分类关系副词：when，，二、关系词一）关系代词1.that*先行词为或，在句中作或。
【注】当that在定语从句中作宾语时，可省略。
2.which*先行词为，在句中作或。
*which的前面可以有介词。
*which既可引导限制性定语从句，也可引导非限制性定语从句。
限定性定语从句中只用that 而不用which 的情况。
A) 先行词有形容词最高级修饰时Polly is the most direct young woman that I have ever come across .B) 先行词有修饰时This is the third time that they have met.C) 主句已有疑问词who或which 时Which of the car s that are in front of the hotel belongs to you?Who is the man that is sitting by the lake ?D) 先行词既有人又有物时He talked about the schools and teachers that he had visited.E) 先行词为all, much, few, little, something, everything , anything, nothing, none 等不定代词时It’s easy to do the repair. All that you need is a hammer and some nails.We haven’t got much that we can offer you.I’d like to tell you something that will make you surprised.F) 先行词前面有the very, the only, the same, any, few, little, no, all, one of 等词修饰时This is the very room that I slept in that evening.The only thing that we can do is to give you some money.Li Ming is the only one that wants to be a teacher.G) 有两个定语从句，其中一个关系代词以用which, 另一个宜用that Edison built up a factory which produced things that had never been seen before.（找清楚两个先行词）*先行词为，在句中作或。
