状语从句讲解及习题

The adverbial clauses（状语从句） 1、基本含义 状语修饰动词、形容词、副词或整个句子。通常由副词、介词短语、动词不定式、分词和从句等担当。 请用下划线划出下列句子中的状语，并说明是什么在做状语： He speaks English very well. He is playing under the tree. I come specially to see you. The boy was praised for his bravery. When she was 12 years old, she began to live in Dalian. If I am not busy tomorrow, I will play football with you. 什么是状语从句？ 用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句， 原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。 例句： I will call you as soon as I arrive in Beijing. If he comes back, please let me know. I know how to light a camp fire because I had done it before. 2、用法归纳 1. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as 等连词来引导。例如： It was raining hard when we got to school yesterday. While he was doing his homework, the telephone rang. As he walked along the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如： I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till 或until 引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如： The young man read till the light went out. Let’s wait until the rain stops. We won’t start until Bob comes. Don’t get off un...