Unit 5 Action+语法-状语从句-含答案 2021-2022学年广东省深圳市沪教牛津版九年级英语上册

Unit5 Action： 状语从句 1. To learn the main clauses in this unit. 2. To know how to use main clauses in grammar . 3. Attract students’ interest to English learning. 1.Look at the picture, can you guess what the song is it? ________________________________________________ 2.Can you make some similar sentences as mentioned above? __________________________________________________ 3. What clauses are they? And do you know other clause? _____________________________________________________ 一．时间状语从句 1. 概念 时间状语从句就是在复合句中表示主句动作发生时间的状语从句。常用的连接词有: when, as, while, after, before, since, ever since, as soon as, once, till, until. A. when, while, as引导时间状语从句 (1) when的用法 when既可指时间点，也可指时间段（即：从句动词可以是短暂的也可是延续的）；主从句动作可同时也可先后发生。 I was thin when I was a child. 当我是个孩子的时候,我很瘦。 It was raining when I arrived.我到达时，天正在下雨。 (2）while用法 while只能指一段时间，从句中的动词必须是延续性动词。强