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课件网) 状语 从句 Adverbial clauses 1.时间状语从句： While John was watching TV, his wife was cooking. 2.让步状语从句： No matter how hard he tried, she could not change her mind. 3.条件状语从句： If winter comes, can spring be far behind 定义：状语修饰动词、形容词、副词或整个句子。状语从句在复合句中作状语。 分类：时间、地点、原因、 目的、结果、条件、方式、 比较、让步等。 何为状语从句？ 连词常规用法 { 连词的意义 相近连词辨析 时间状语从句 条件状语从句 1、 时间状语从句 2、条件状语从句 3、让步状语从句 4、结果状语从句 5、 比较状语从句 6、原因状语从句 7、方式状语从句 8、 目的状语从句 9、地点状语从句 状语 从句 考 点 主将从现 当：when, while, as 一…就… ：as soon as, the moment, the minute, the second, the instant, immediately, directly, instantly no sooner…than, hardly…when, scarcely...when when, whenever, while, as, before, after, until, till, by the time, as soon as, hardly…when, no sooner …than, the moment, the minute, immediately, directly, instantly... 1. 时间状语从句 相同 都可表示 “当 …时候” ，从句谓语是延续性 动词 ， 三者可互换 【例】 I met Laura when/while/as I was walking along the street. 不同 when： 可用于非延续性动词和延续性动词 【例】 When he reached home, he had a rest while： 常与延续性动词或表示状态的动词 连用 ， 意为 “与 …… 同时” “在 ……期间” 【例 1】They rushed in while we were discussing problems. 【例 2】 Make hay while the sun is shining. as： 主句动作和从句动作同时发生 1. 表示 “一边 …一边 …” 2. 表示 “随着 … … 【例 1】As the time went on, the weather got worse. 【例 2】 He sang as he walked along. （1）when, while 与 as 的用法区别 单词或短语充当连词： 一 ...就... I didn’t wait a moment ， but came immediately you called. I fell asleep the minute I went to bed. As soon as I got to the bus stop, the bus started. （2） ① 搭配 ② 语序：hardly/ scarcely/ no sooner 置于句首时 ，其后要进行部分倒装 ③ 时态： Hardly/Scarcely/No sooner+ had done..., when/when/than+ did... 【例 1 】 Hardly had I reached home when it began to rain. 【例 2 】 Scarcely had the doctor got into bed when he was called out again. 【例 3 】 No sooner had we sat down than we found it was time to go. ~ （3） 连词 no sooner…than, hardly/scarcely...when 用法： 【例 1】Unless we have enough evidence, we can’t win the case. 【例 2】In case I'm late, start without me. 【例 3】You won’t find paper cutting difficult as long as you keep practicing it. 【例 4】 I can tell you the truth on condition that you promise to keep it a secret. 【例 5】Providing/Supposing/Given/Provided (that) you promise not to tell anyone else, I'll explain the secret. if, unless (除非), in case (万一), so/as long as (只要), on condition that (在...条件下), supposing（假设 ，假定, 如果 ，只要） ...当主句为将来时 ，从句通常用一般现在时表示将来。 2. 条件状语从句 定义：在时间状语从句、条件状语从句、让步状语从句中 ，如果主句表达将来含义 ，从句用一 般现在时（表示将来含义） 【例 1】 Unless we have enough evidence, we can’t ... ...
