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1、初中阶段“并列句”的用法 (由and, then, or, but, so连接的句子) 连词“and, but, or, so”和“then”都用来连接两个句子，此句叫做并列句。A：时态： I. “and” 连接的并列句时态: a. 简单句 + and + 简单句 （时态前后一致） Mr. Wang teaches maths and Miss Li teaches English. His father is a teacher and his mother is a doctor. b. 祈使句 + and / then + 简单句 （一般将来时） Use your head, and /
2、 then you will have a good way. Think hard, and / then you will have an idea. 注：以上两句可以改为条件状语从句。 If you use your head, you will have a good way. If you think hard, you will have an idea.II. “or” 连接的并列句时态: 祈使句 + or + 简单句（一般将来时） Hurry up, or you will be late for school. Work hard, or you wont be able t
3、o pass this exam. 注：以上两句可以改为条件状语从句。 If you hurry up, you wont be late for school. If you work hard, you will be able to pass this exam.III. “but” 连接的并列句时态: 简单句 + but + 简单句 （时态前后一致） He is very old, but he still looks strong. It was very dark, but he still went on working. 注：以上两句可以改为让步状语从句。 Though he
4、is very old, he still looks strong. Though it was very dark, he still went on working.IV. “so” 连接的并列句时态: a. 简单句 + so + 简单句 （时态前后一致） He was ill yesterday, so he didnt go to school. b. 根据句意来定： He has lost his ticket, so he wont go to the cinema. She had seen this film twice, so she didnt go to the cin
5、ema yesterday. 注：以上三句可以改为原因状语从句。 He didnt go to school because he was ill yesterday. He wont go to the cinema because he has lost his ticket. She didnt go to the cinema yesterday because she had seen this film twice.B: 结构： I. 祈使句 + and / then + 简单句 (一般将来时) 可以改为条件状语从句1. Use your head, and you will fi
6、nd a good way. If you use your head, you will find a good way. 2. Think hard, then you will have a good idea. If you think hard, you will have a good idea. 祈使句 + or + 简单句 (一般将来时) 可以改为条件状语从句1. Hurry up, or you wont catch the bus. If you hurry up, you will catch the bus.If you dont hurry up, you will
7、miss the bus.If you dont hurry up, you wont catch the bus.II. “but” 连接的并列句可以改为 “though / although” 引导的让步状语从句1. He was weak but he worked hard. Though he was weak, he worked hard. 2. Mr. Li is not rich but he is happy. Though he is not rich, he is happyIII. “so” 连接的并列句可以改为 “because” 引导的原因状语从句1. He was ill yesterday so he didnt go to school. He didnt go to school because he was ill yesterday. 2. He has lost his ticket, so he wont go to the cinema this evening. He wont go to the cinema this evening because he has lost his ticket.
