(
课件网) 黑龙江省双鸭山一中外研版英语 必修二模块5语法 请同学们准备 模块检测五语法填空、改错+知识点笔记本 一、状语从句概说 1、在句中作状语用的从句叫状语从句（句子不缺任何成分）。 2、状语从句可以在句首，也可在句中或句末。 3、状语从句按其用途可有时间、地点、原因、目的、结果、让步、方式、比较等九种。 一: 时间状语从句（五类引导词） 1.从属连词： when（当……时），while（在……期间）， as（当……，一边……一边……）， before（在……之前），after（在……之后），since（从……以来），till/until（直到），whenever（无论何时）， as soon as（一……就）once(一旦)等。 注意：在时间状语从句中，主将从现 难点逐个击破 1.before “在……之前”， “还没来得及/还没有……就……， 趁着还没……就……， 不知不觉就……， 句型：肯才否就 It will be /was+一段时间+before “过多久才……” It won't be /wasn't+一段时间+before “用不了多久就 ...” 注意时态: I had not sat long before he came back. 我没坐多久他就回来了。 He almost knocked me down before he saw me. 他几乎把我撞倒才看到我。 Before I could get in a word, he measured me. 我还没来得及插话，他就给我量好了尺寸 It was half a year before I came back. 半年后我才回来。 It won't be long before we meet again. 过不了多长时间我们就会再见面。 I’ll water the flowers before it gets dark. 我要趁着天还没黑把花浇好水。 Be a pupil before you become a teacher. 先做学生，后做先生。 Time passed quickly and three months went by before she knew it. 时间过得飞快，她不知不觉就在那里度过了三个月。 2、since的用法： since表从过去某一时间或动作、事情起到目前为止，“自….以 来” ①、引导状语从句时，主句: sb has/have done（或现在完成进行时）+since从句过去时 I have written home four times since I came here. I’ve been living here since I came to Beijing. ②、常用句型：It is (has been)…..+ since +一般过去时 It is five years since I began to learn English. . 3.until 与 not until until “直到...时” “做某事直至某时"，主句动词必须是延续性动词 not ...until “直到...才” "直至某时才做某事"。主句动词为延续性或非延续性都可以 I slept until midnight. 我一直睡到半夜时醒了。 She didn't arrive until 6 o'clock. 她直到6点才到。 4、as, when, while 的用法与区别： when: ①引导状语从句，表示主句、从句的动作或状态同时、之前、之后发生。 When they arrived, it was already midnight. When the clock struck eleven, all the lights went out. 从句的动作在主句之前发生,只能用when。 When he ran to the stop, the bus had gone. 从句动作在主句动作之后发生，只可用when ②、when = and then,作并列连词，when前通常有逗号。“这时…. 就在这时….“ I was wandering in the street, when suddenly I caught sight of one of my old friends. while ①、while意思是during the whole of the time that,指在一段时间里，所引导的从句中的动词是延续性的，“在….期间， 在….之时” She visited a lot of places while she stayed in U.S. He felt asleep while he was watching TV. ②、while可用作并列连词，连接两个分句，表对比，“而….” My son likes to watch boxing games while I would rather listen to music. as 表两个动作交替进行或同时完成， “一边…一边…”或“随着….” ... ...
