1、时间状语从句 2、条件状语从句 3、结果状语从句 4、原因状语从句
5、目的状语从句 6、让步状语从句 7、地点状语从句 8、比较状语从句 9、方式状语从句
I was watching TV at ten o'clock yesterday.
I was watching TV when my mother got home.
引导时间状语从句的连词有： when, while, as, the moment, before, after, until, since, as soon as 等。
1.I will tell you as soon as Tom finishes his work. 2. He won't go to bed until his mother comes back. 3. The moment I got home, I went to sleep. 4. I am working when my mother in cooking.
注意： since 自从……
I have never been there again since I graduated from the university.
if, unless, as long as, in case(以防，万一）
Eg: 1. Don’t call me unless it rains. = If it rains, you can call me. 2. You may borrow my book as long as you keep it clean. 3. Take your umbrella in case it rains.
If ---如果 If you don’t hurry up, you will miss the plane.
If it snows tomorrow, the flight will be canceled.
由 so … that, such … that, so that 等引导。 e.g. a. He ran so quickly that we couldn’t catch up with him. b. The bus broke down so that we had to
c. She is such a lovely girl that we love her very much.
通常用because，since或as引导。 (1)由why提出的问题用because来回答。如: －Why are you late again today? －Because I've got a bad cold. (2)since的意思是“既然” Eg.Since you can‘t answer the question, you might as well ask someone else for help.
a. He must get up early so that he can catch the first bus. b. He worked day and night in order that he could succeed. =He worked day and night in order to succeed.
引导目的状语从句的词组有so that， in order that等。
No matter ---无论） No matter (what, when, where, how) 无论（什么，何时，何地，怎样) B He refused to give up smoking _________ we explained the harm of smoking.
A. no matter what B. no matter how C. wherever D. ever since
7. 地点状语从句 用连接副词 where或wherever (在任 何地方) 引导。 e.g. a. Just stay where you are. b. You can put the book wherever you want to.