中考英语状语从句用法分类详解

中考英语状语从句用法分类详解 一、状语从句的概念 用来修饰主句中的动词，副词和形容词的从句叫状语从句。 二、状语从句的分类 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。 三、状语从句的句法功能 1. 时间状语从句（主句将来时从句现在时） 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 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. 易混引导词while, when的区别： 　　when既可以指"时间点",与瞬间动词连用，也可以指"时间段"，与延续性动词连用（=while）。 While表示时间段,因此，while 从句的谓语动词要用延续性动词。 练习：用while或when填空 1. Please don't talk so loud ______ others are working. 2. ______ he came in, his mother was cooking. 3. ______ we were at school, we went to the library every day. Keys: 1. while 2. when 2. While 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。 练习： 1. I’ll ring you up as soon as I ______（get） to New York. 2 .I will tell him everything when he ______ (come) bac