典型例句突破状语从句

1．条件状语从句：

1）Let's go out for a walk unless you are too tired.( 除非,若不；相当于if---not)

即：If you are too tired,we’ll not go out for a walk.

2）You may borrow my book as long as you keep it clean.(只要，表示条件的唯一性)

3）Take your umbrella in case it rains.（以防---，以免---）

4）I can tell you the truth on condition that you promise to keep a secret.(条件是---)

5）Supposing it rains, shall we continue the sports meeting?( 如果,假如)

6）He won't be against us in the meeting provided/providing that we ask for his advice in advance.( 假如,除非以……为条件)

7）You will be successful in the interview once you have confidence.(一旦---就--)

2.时间状语从句：

1）When she came in, I stopped eating. (当---的时候，表示“瞬时动词”)

2）While my wife was reading the newspaper, I was watching TV. (当---的时候，was reading是延续性的动词，was reading和was watching同时发生)

3）I like playing football while you like playing basketball.（然而，表示“对比”）

4）Aswe was going out, it began to snow.（as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间）

5）We always sing as we walk.（as表示“一边……一边”）

6）Einstein almost knocked me down before he saw me.(“在---之前”或“----才”)

7）My father had left for Canada just before the letter arrived.（“刚好在---之前”或“---就”）8）After you think it over, please let me know what you decide. （在---之后）

9）I didn't go to bed until（till）my father came back.(“直到----才”，主句中的动词为非延续性动词)

10）I worked until he came back. (“直到----才”，主句中的动词为延续性动词)

11) Where have you been since I last saw you? (自从---)

12) I will go there directly I have finished my breakfast. (一----就---，另外有immediately, instantly)

13)The moment I heard the news, I hastened to the spot. (一----就---，另外有the instant, the minute，ect.)

14)As soon as I reach Canada, I will ring you up. (一----就---)

15)He had no sooner arrived home than he was asked to start on another journey. (一----就---,另外有hardly/scarcely----when---)

16) By the time you came back, I had finished this book.(“到---时为止”，从句是一般过去时，主句是过去完成时。)

17)By the time you come here tomorrow, I will have finished this work. (“到---时为止”，从句是一般现在时，主句是将来完成时。)

18) Each time he came to Harbin, he would call on me.( “每当---的时候”或“每次”，复习each time, every time和whenever)

3．有关时间状语从句的重点句型

1）It will befour days before they come back. (It will be--- before---过很久才----)

2）It won’t be four days before they come back.( It won’t be---before---不久就---)

2）It was not until the meeting was over that he began to teach me English.(“It was not until---that----”not until的强调句型)

3）Not until the meeting was over did he begin to teach me English.( not until的倒装句型。)