2.引导定语从句的连接词
关系代词：that, which,who, whom,whose, as等
关系副词：where, when, why 等
3.引导状语从句的连接词：
)时间状语从句：when, as, while, as soon as, before, after, since....
)地点状语从句常用引导词：where, wherever
3. 状语从句（adverbial clause):副词 性从句（时间、地点、条件、结果、 目的、原因、让步，方式等等）
For example: 1. I have reached a point in my life where I am
supposed to make decision of my own. 2. I found the wallet where you left it. 3. She sang as she walked home all the way. 4. Many people , as you know, are learing foreign
4.若先行词在从句中做主语、宾语或定 语则选择关系代词，若在从句中做状 语，则选择关系副词。
1. who, whom, whose, that 用法区别.
① who 作定语从句的主语或宾语.
The man who is speaking at the meeting is a worker. ② whom 作定语从句的宾语
)原因状语从句：because= in that , as )目的状语从句：so that, in order that )结果状语从句：so...that, such...that )条件状语从句：if，unless ）让步状语从句：though, although, even
if, even though
The woman whom they wanted to visit is a teacher. ③ that 可以作定语从句的主语和宾语（可省略）.
The man who / that is speaking at the meeting is a worker. The woman (whom / that) they wanted to visit is a teacher.
④ whose 作定语从句的定语.
I know the girl whose mother is a teacher. 2. which, that 的用法
which 作定语从句的主语或宾语（可省 略） This is a truck which / that is made in China.
I like the book (which / that) you bought yesterday.
三大从句讲解优秀课件
1. 名词性从句（substantive clauses): 主语从句subject clause、宾语从句 object clause、表语从句 predicative clause、同位语从句 appositive clause.
2. 定语从句（attributive c=on(in,during…)which
关系副词 where=on(in,in front of…)which Why=for which
如何选用定语从句的关系词
1.首先分清主句和定语从句
2.确定定语从句的先行词
3.把先行词带回到定语从句中去，看其 在定语从句中做什么语法成分（主语， 宾语，定语或状语）
Everything that we saw in this film was true.
③ everything, something, nothing, all, anything, little, much等不定代词作先行词时
This is the very book that belongs to him. ④ 先行词被the only, the very, the same, the last 修饰时。
languages. 5. Her house, which was built a hundred years ago,
stood still in the earthquake. 6. The news that our team has won the games was true. 7. It was obvious that you've made a big mistake. 8. He will talk to us about what he saw in the
school. 9. He looks as if he was going to cry.
引导词particle
1.引导名词性从句的连接词可分为三类： 连接词：that, whether, if (不充当从句的
任何成分） 连接代词：what, whatever, who, whoever,
whom, whose, which 连接副词：when, where, how, why
Who is the girl that is standing under the tree? Which is the machine that we used last Sunday.
⑤who is the worker that took some
3. 只能用that的情况 Tom is the cleverest boy that I have ever known.
This is the first play that I have seen since I came here.
① 序数词或形容词最高级修饰先行词时 I’ve read all the books that you lend me. ②先行词被every, some, no, all, any, little, much 等修饰时。