中考英语状语从句复习课件概要.ppt

1、在when引导的时间状语从句中，动作可以是表示延续的，也可以是表示瞬间的；while引导的从句中，动作一定是表示延续的 I was watching TV when Tom came in. Tom came in while I was watching TV. 2、as“当…….时；一边….一边…..”,引导的时间状语从句，强调主句的动作与从句的动作同时发生，when与while也有此用法。另外when和as常表示从句动作先于主句动作，有时when还可以表示从句动作在主句动作之后。 As she was dancing, she was singing. It’s getting colder and colder as the winter comes. 3、before “在….以前”，表示主句的动作发生在从句动作之前；after “在……之后”，表示主句的动作发生在从句动作之后。 She was so interested in the book that she had read it for three hours before she realized it. I went to bed after I finished homework. 4、until/till表示主句动作结束的时间。在肯定句中表示“直到…..为止”，主句要用延续性动词。 My mother waited till/until I came back. 在否定句中，until/till表示“直到…..才”，主句通常用瞬间动词。这时until可用before替换。常构成：not…until结构，有时可用never, nothing代替not. He didn’t leave until/before I came back. 5、since，ever since引导的时间状语从句，表示主句动作开始的时间，译为“自….以来”。主句常用一般现在时或现在完成时，从句用一般过去时，常用句型为： It has been…since从句；It is +一段时间+since从句。（对 since 引导的时间状语提问要用how long). It’s ten years since I worked in the hospital. He has taught us maths since he came here. Where have you been since I saw you last？ 6、由by the time引导的时间状语从句注意时态的变化：在一般情况下，如果从句的谓语动词用一般过去时，主句的谓语动词用过去完成时；如果从句的谓语动词用一般现在时，主句的谓语动词用将来完成时。 By the time you came back, I had finished this book. By the time you come here tomorrow, I will have finished this work. 7、由each time, every time和whenever引导的时间状语从句。 Each time she came to Hainan, she would call on me. Whenever you go, I will follow you! You grow younger every time I see you. 二、地点状语从句 地点状语从句一般由连接副词where, wherever等引导，已经形成了固定的句型，如： 句型1：Where 从句，（there+）主句。 Where bees are, there is honey. 重点提示： 此句型通常译成“哪里…哪里就…”；主句在从句后面时，there 可用可不用；如果主句在从句的前面时，一般都不用there. 句型2：Anywhere/Wherever从句，主句。 Wherever the sea is, you will find seamen. Wherever he goes, I’ll go. 重点提示： anywhere本身是个副词，但是，常可以引导从句，相当于连词，意思相似于wherever。anywhere引导的从句可位于主句之前，也可以位于主句之后。而wherever本身就是个连词，表示“在何处、无论何处”。 2)Since是指分析后的原因，读者多少了解，不是全部叙述的重点，语气较弱。 since比as正式，两者不回答w