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1.If I am not busy tomorrow, I will play football with you. 2.You won’t pass the exam unless you work hard on it. 3.As long as you take my advice, you will outwit your rival.

注意：一般情況下，if, unless, as long as 引導的從句用一般現在時，主句用一般將來時。

E 讓步狀語從句:

連接讓步狀語從句的連接詞有：although, though, even if, even though, 疑問詞 + ever , no matter + 疑問詞.

1.Tom was late for school this morning because he didn’t catch the early bus. 2.I couldn’t go to Beijing on business as my mother was ill. 3.Since all of us agreed about this plan, we will carry it out next week. 4.We listened carefully, for the speech was very important.

注意：當連接原因狀語從句時，because語氣最強，as, since, for次之；because, as, since引導的從句可在主句前面或后面， for引導的從句只能在主句的后面。

D 條件狀語從句：

連接條件狀語從句的連接詞有：if, unless, as long as.

4.I will wait here until(till) you finish your job. 　　　　　 連詞 　 I will wait here until(till) 8pm. 　　　　　 介詞

(3) 詞組：as soon as

I will tell him as soon as he comes back. As soon as she finishes her homework, she will play tennis. 通常情況下，主句用一般將來時，as soon as 引導的從句用一般現在時。

B 地點狀語從句：

　連接地點狀語從句的連接詞有：where, wherever 　1.Where there is water, there is life. 　2.Where there is a will, there is a way. 　3.Wherever you go, I will follow you.== No matter where you go, I will follow you. 　4.I will go wherever I can find a good job.== I will go no matter where I can find a good job.

C 原因狀語從句：

連接原因狀語從句的連接詞有：because, as, since, for.

3.I have lived in Dalian since my son was born in 1999. 　　　　　　 連詞 　 通常情況下，主句用現在完成時，從句用一般過去時。 　 I have lived in Dalian since 1999. 　　　　　　 介詞

2.He usually drinks a cup of coffee after he comes back from school. 　　　　　　　　　 連詞 　 He usually drinks a cup of coffee after coming back from school. 　　　　　　　　　 介詞

1.He usually drinks a cup of tea before he goes to school. 　　　　　　　　　 連詞 　 He usually drinks a cup of tea before going to school. 　　　　　　　　　 介詞

1.When he came in, I was listening to the radio． 2.As I was wandering in the street, I met her. 3.While (as) I was watching TV, my mum was cooking in the kitchen.

(2) 連詞before, after, since, until(till). 當他們表示時間時，他們既是介詞又是連詞。

2.The boy was praised for his bravery. 　The boy was praised because he saved the baby’s life in the freezing　　　　　 river.

　　　　　 二　狀語從句的種類：

A 時間狀語從句:

連接時間狀語從句的連接詞有:

(1) 連詞：when, while, as. 它們都表示當…時候的意思。如果主句和從句的動作同時發生且都是進行時態，只用while, as. 其他情況下when, while, as通用。

2．The boy was praised for his bravery. 　原因狀語修飾was praised

　B 狀語從句 就是用一個句子來代替上面的時間狀語和原因狀語。 　1.Ten years ago, she began to live in Dalian. 　 When she was 12 years old, she began to live in Dalian.

1．Ten years ago, She began to live in Dalian. 　時間狀語修飾began