文档介绍：初中定语从句知识点详解
定语从句考点：①关系代词用法
②关系副词用法
③关系副词=介词+关系代词用法
●定语从句：在主从复合句中用作定语从句叫做定语从句。
Eg：He who knows nothing but pretends to know everything is indeed a
good-for-nothing. 不懂装懂，一事无成。
It is the first step that costs. 千里之行，始于足下。
He that makes himself a sheep shall be eaten by the wolf. 甘当小绵羊，迟早要喂狼。
●先行词：被定语从句修饰成分。先行词可觉得一种词、短语甚至整个句子。
●关系词：引导定语从句词叫关系词，分为关系代词和关系副词。
关系词引导定语从句，连接主句和从句，相称于连词作用；
关系词必在从句中充当某个句子成分，可为主语、宾语、表语、定语、状语。
一、各个关系代词和关系副词区别及详细用法：
(一)、1. who 指人，在定语从句中作主语或宾语。例如：
The person who broke the window must pay for it. 打碎玻璃人必要补偿。
The boy who is wearing the black jacket is very clever. 穿黑夹克那个小男孩很聪颖。
2. whom指人，在定语从句中作宾语，可以省略，若前面有介词，则不可省略，也不能用that，例如：
Do you know the young man (whom/who) we met at the gate？
你结识咱们在门口碰见那个人吗？
Mr Lee (whom/who) you want to see has come. 你想要会面李先生到了。
The man to whom our teacher is speaking is from Canada.
=The man who our teacher is speaking to is from Canada.
咱们教师正在谈话那个男人来自加拿大。
3. whose 指人，也可指物（拟人化物），意思是“谁”，在定语从句中作定语。例如：
The girl whose mother is ill is staying at home today. (The girl’s mother is ill.)
那个女生妈妈生病了，她今天依然呆在家。
I know the boy whose father is a professor. (The boy’s father is a professor.)
我结识那个男孩，她爸爸是一名专家。
I live in a house whose windows face the south. (The house’s windows face the south.)
我居住在一种窗户朝南房子里面。
4. which指物，在定语从中作主语或宾语，做宾语时可以省略。例如：
A dictionary is a book which gives the meaning of words.
字典就是一本可以给出单词释义书。
Here is the book (which) the teacher mentioned yesterday. 这就是昨天教师提到那本书。
5. that多指物，有时也指人，在定语从句中作主语或宾语，做宾语时可以省略。例如：
I’ve read the newspaper that(which) carries the important news.
我读了那份刊载着重要消息报纸。
Who is the boy that/whom I saw this morning? 我早上见到那个男孩是谁？
6. when 指时间，在定语从句中作状语。例如：
I’ll never forget the time when we worked on the farm.
我永远不会忘掉咱们一起在农场工作时候。
He arrived in Beijing on the day when I left. 她在我离开北京那天到北京。
7. where 指地点，在定语从句中作状语。例如：
This is the house wher