1、我们先通过一个题目,了解一下其中的引导词。
This cinema is where the May Day Concert is about to held.
这就是五月天演唱会将在这里举行的电影院。

2、我们首先来了解一下从句的各种类型
N1 名词性从句,名词性从句在句子中可能充当多种成分,如主语表语等
例句:
It is impossible that you can fly.

3、N2 形容词性从句
形容词性从句一般常见充当定语从句
例句:
The girl who has been professed by many boy is beautiful .

4、N3 副词性从句
常见使用在状语从句中
例句:
You may win if you try.

5、接下来我们梳理一下连词的类型:
上述所讲的N1和N3的引导词常见有三类
n1 在从句中无成分无含义的that,或有含义的if
例句:
He said that he would always love me.

6、n2 连接代词 who/whom等
这些词一般在句子中有含义,可以作主语表语等等
例句:
She is whom I hate.
