Unit 3 At the Market Grammar 课件-2022-2023学年中职英语凤凰职教基础英语第二册

Grammar 03 状语从句 Adverbial Clauses 状语从句 的 作用 状语从句 的 分类 状语从句 的 定义 CONTENT 状语从句的定义 在句子中作状语的从句叫状语从句。 一般由从属连词引导，既可放在主句前，用逗号与主句 分开；也可以不分开放在主句后面。 I watch TV at home. 主O 谓V 宾O 地点状语 简单句 状语从句的定义 在句子中作状语的从句叫状语从句。 一般由从属连词引导，既可放在主句前，用逗号与主句 分开；也可以不分开放在主句后面。 I watch TV when I am at home. 主O 谓V 宾O 主 系 表 复合句 引导词 主句 从句 地点状语 一个句子充当状语。 状语从句的作用 状语从句 副词 状语从句用来修饰句子中的动词、形容词、副词或修饰句子。 用于表示时间、地点、原因、目的、结果、条件、让步、方式、比较等。 状语从句的分类 时间状语从句 1. when while as 当...的时候 when 表示主句的动作和从句的动作同时发生或先后发生，从句的谓语动词用延续性或者非延续性动词都可以。 as 除了表示“当……时候”，还可以表示“一面……一面”或“随着……”，强调伴随的状态。 while 表示“当……时候”强调主句和从句的动作同时发生，主句及从句谓语都为延续性动词，while 还可以表示两个动作的对比，一 般译为“而，但”。 e.g. I was about to leave when the bell rang. The children sang as they danced. I am studying while he is playing. 2. until till 直到...为止 二者基本上可以相互替换，until更加正式，基本不引导无动词结构的状语。 Not until It was not until… that 直到...才... 只用 until e.g. The boy didn’t go to bed until his mother came back. Not until father came back home did we begin to have supper last night. It was not until he was too tired that he stopped watching TV. Not until置于句首时，主句结构要倒装 It was not until强调句中使用until的结构，对动作进行强调。 e.g. The young man kept reading till / until the light went out. 3. no sooner… than hardly... when 刚……就…… no sooner ... than ... & hardly ... when ... 中，主句用过去完成时，从句用过去时 当 No sooner & Hardly 置于句首时，主句结构要倒装 e.g. I had no sooner entered the study than I felt danger. No sooner had I entered the study than I felt danger. I had hardly got home when it began to rain. Hardly had I got home when it began to rain. 3. as soon as 一……就…… e.g. As soon as she came to the classroom, she began to read English. 强调动作紧密相连。 4. It + be + 时间 + before ...