专题二十六 状语从句（3）（讲）-【中职专用】中职英语一轮复习讲练测（高教版·基础模块3）（山东适用）

中职英语一轮复习语法专题 状语从句（3） 考纲解读： 山东省职教高考考试大纲要求考生理解由although（though）、even though (even if)引导的让步状语从句的用法；理解有as引导的方式状语从句的用法。掌握由when,while, as soon as,since,until,till,after,before,once,as引导的时间状语从句的用法；由where引导的地点状语从句的用法；由because引导原因状语从句的用法；由so that,in order that引导的目的状语从句的用法，由so...that...,such ...that...引导的结果状语从句的用法；由if,unless, as long as引导的条件状语从句的用法；掌握由as...as,than引导的比较状语从句的用法。 19 【Learning goals】学习目标 grasp the usage of adverbial clause. get to know how to use as if, when, although, as and if. learn to finish the right sentences. By the end of this class, you’re expected to: 3 Step 1 Warming up 情境导入 What did you do in your holiday? Where did you go? 探究活动 Step 2 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。 状语从句 (1) 时间状语从句常用when, as, while, before, after, till, until, as soon as, since等连词来引导。例如： It was raining hard when we got to school yesterday. 昨天当我们去学校的时候，雨下的很大。 While he was doing his homework, the telephone rang. 他正在做作业的时候，这时电话响了。 As he walked along the lake, he sang happily. 他一边走在湖边，一边快乐地唱歌。 I will write to you as soon as I get home. 我一到家就会给你写信。 Tom didn’t leave home until his father came back. Tom直到他爸爸回来才离开家。 常见的状语从句的用法一：时间状语从句 6 (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. 我一到纽约就给你打电话。 I will tell him everything when he comes back. 当他回来时，我会告诉他一切。 He won’t believe it until he sees it with his own eyes. 除非亲眼看到，否则他不会相信。 常见的状语从句的用法一：时间状语从句 7 (1) 条件状语从句通常由if, unless (=if not), as long as引导。例如： What shall we do if it snows tomorrow? 如果明天下雪我们该怎么办？ Don’t leave the building unless I tell you to. 除非我告诉你，否则不要离开大楼。 (2) 在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。例如： I’ll help you with your English if I am free tomorrow. 如果我明天有空，我会帮你学英语。 He won’t be late unless he is ill. 除非他生病了，否则他不会迟到。 常见的状语从句的用法二：条件状语从句 8 原因状语从句通常由because, since, as引导。 例如： He didn’t come to school because he was ill. 他没有来学校，因为他生病了。 As it is raining, we shall not go the zoo. 下雨了，我们就