专题12 状语从句 时间状语从句 常用连接词： 词义 连接词 当 when While as 直到 until Till 一……就 no sooner …than hardly…when scarcely…when as soon as… the moment/the second once 在……之前/后 before／after 到……为止 by when 的用法 “当……时”，两件事情相继发生（从句动作在主句动作之前发生） When I receive your email, I will reply soon. （正在……时）突然 ...was/were about to do...when sth. did... ...was/were on the way/point of doing...when sth. did... ...had just done…when sth. did… ...was/were doing...when sth. did while 的用法 “在……期间”，用延续性动词 While he was eating his breakfast, he heard the doorbell ring. 表对比 Some courses in college are required while others are optional. 虽然，尽管（放句首，主从句主语为同一人或物） While I think living in poverty is bad, I don't care about money. as的用法 “正当……的时候”(动词可短暂，可延续) As they were walking together in the shrubbery（灌木丛）the next day， she said something. “随着” As she grew older she gained in confidence. before 的用法 固定结构：long before+事件 (在……以前很久) before long=soon (不久以后) not ……long before+事件 (不久之后) Jane had not been gone long before it rained hard. 吉英刚走不久就下起大雨。 by the time/by the end of用法 结构公式：by the time/by the end of+过去时间：到……的时候(主句用过去完成时) By the end of the war, the small work-shop had become a large factory. 回顾：by+ 将来时间搭配什么时态？ Workers will have completed the new roads by the end of this year. as soon as/the moment/ the minute/ the second/no sooner…than／hardly…when／scarcely….when “一……就” as soon as 讲过去的事情 As soon as I entered the house, I singled you out as a companion of my future life. （动作同时发生） As soon as he had finished, Jenny told him she wanted to go home.(动作有先后) 讲一般的情况 Researchers found that women are overcome by a burning desire to share gossip as soon as they hear it. 研究人员发现，女性一旦听到什么八卦新闻，就难以克制要去和其他人分享。 the moment/the second/ the minute The moment I saw her, I fell in love with her. (首字母) no sooner….than; hardly/scarcely…when They had no sooner dined than they set off again. 陈述句结构公式1：sb. had no sooner done than sb./sth. did 陈述句结构公式2：sb. had hardly/scarcely done when sb./sth. did 倒装句结构公式1：No sooner had sb. done than sb. did 倒装句结构公式2：Hardly/Scarcely had sb. done when sb. did until的用法 延续动词/状态+until not +瞬间动词+ until Everything went well until the day a twenty-dollar bill disappeared. You don't know what you can achieve until you try. 强调句结构：It is not until...that... She didn’t realize that her idea was wrong until she experienced a series of defeats. It is not until she experienced a series of defeats that she realized that her idea was wrong. 地点状语从句 常用连接词：where, wherever You had better make a mark where you have any questions. 主语 谓语 宾语 地点状语从句 条件状语从句 常用连接词：because, since, as等。 because 语势最强，用来说明直接的原因，回 ... ...
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