课上内容（Lesson)
定语从句基本定义及术语
定语从句： 放在名词或代词的后面，由关系代词或关系副词引导修饰该名词或代词的从句叫定语从句。
先行词：被修饰的词叫先行词（一般是指引导词前面的那个代词）
引导词： that, who, which,whom, as, whose
组成：先行词+ 关系词（引导词）+ 定语从句
关系代词分类：关系代词、关系副词
关系代词：that, which,who,whom, whose
关系代词引导的定语从句，代替的先行词是人或物的名词或代词，并在句中从当主语、宾语、定语等成分。
关系副词：when,where,why
Whose （表示 谁的）用来指人或物，（只用作定语，若指物，它还可以同 of which 互换），例如：
They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙
Please pass me the book whose (of which) cover is green 请递给我拿本绿皮书
Which,that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语，例如：
A prosperity which/that （主语缺失）had never been seen before appears in the countryside. 农村出现了前所未有的繁荣景象。（which/that 在句中作主语）
主句: A prosperity appears in the countryside.
先行词： 这里是名词 prosperity
关系词（引导词）： which/that
The package which/that you are carrying（宾语缺失） is about to come unwrapped. 你拿的包快散了。（which/that在句中做宾语）
主句：The package is about to come unwrapped. 包裹马上就要散了。
先行词：这里是名词 package
关系词（引导词）：which/that
词汇（Key Word ）
句型（Sentences）
# 用于指人 用who
The man who is strong is Robert.
The man 主句
man 先行词，因为用的是人称代词，所以这里后面使用“who”作为 【引导词】
who 引导词
is strong is Robert 从句
who is strong 强壮的
who is popular 受欢迎
who is British 英国的
who is sexy 性感的
who is powerful 强大的
# 用于值事和物 which / that(既可以指人也可以指物）
The dress (which/that) is short is mine
The dress is mine 主句
先行词 dress
引导词 which/that
从句 is short
which/that is short 短的
which/that is green 绿的
which/that is expensive 贵的
which/that is fashionable 时髦的
which/that is long 长的
# 改为定语从句
The boy is Tom. The boy is smiling.
The boy who is smiling is Tom.
The boy is Tom. The boy has a round face.
The boy who has a round face is Tom.
The boy is Tom. He is sitting in front of me.
The boy who is sitting in front of me is Tom
定语从句三部曲
1. 找出先行词
2. 确定先行词在从句中的成分：主语，宾语，状语
3. 选择正确的关系词（引导词）
语法（Grammar）