高考英语高中英语三大从句知识点附例句
1. 名词性从句：作为主语、宾语、表语或同位语，常用连接词有that, whether, if, who, whom, whose, what, which等。

例句：
- What he said is true.（他说的是真的。

）
- I don't know whether he will come or not.（我不知道他会不会来。

）
- She asked me if I had finished my homework.（她问我是否完成了作业。

）
2. 定语从句：修饰名词或代词，常用连接词有that, who, whom, whose, which等。

例句：
- The book that I borrowed from the library is very intere sting.（我从图书馆借的那本书非常有趣。

）
- The girl who is standing over there is my sister.（站在那边的女孩是我的妹妹。

）
- The car, which is parked outside, belongs to my neighbor.（停在外面的那辆车是我邻居的。

）
3. 状语从句：表示时间、条件、原因、结果、让步等，常用连接词有when, while, before, after, since, until, if, unless, because , since, as, so that, in order that, although, though等。

例句：
- I will call you when I arrive at the airport.（我到机场后会给你打电话。

）
- If it rains tomorrow, we will stay at home.（如果明天下雨，我们会呆在家里。

）
- He failed the exam because he didn't study hard.（他考试不及格是因为他没有认真学习。

）。