第七讲：7B 状语从句 牛津上海版英语暑期讲义（七升八）（表格式）

教师姓名 学生姓名 年 级 上课时间 学 科 英语 课题名称 7B 状语从句 一、知识梳理Step 1状语从句考点介绍状语从句属于复合句，是中考的考点。状语从句中常考的是时间状语从句和条件状语从句。状语从句分九类：从句种类主要从属连词 1时间状语从句 when, while, as, before, after, until, till, whenever 2条件状语从句 if, unless 3原因状语从句 because, as, since状语从句详细讲解★时间状语从句3.1．时间状语从句用一般现在时表示将来。连接时间状语从句的连接词有：when(当……的时候)，while（当……的时候），as(当……的时候)，once( 一旦)，till( until)（一直到……，直到……才），by the time(到……时)，as soon as（一……就）the moment(一……就)．since(自从 ……)．before(在……前)．after(左……后)3.2．when，while，as均可表示“当……的时候”。 when强调“特定时间”，表示主句谓语动词的动作与从句谓语动词的动作是同时发生的，或从句的动作发生在主句的动作之前；while表示的时间是一段，而不是一点，as多用在口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。 I'll go on with the work when／come back tomorrow．我明天回来后会继续做我的工作。 When spring came, he felt like a trip.春天来了，他想去旅游。 When he was eating his breakfast, he heard the doorbell ring.(强调吃饭的时候）。 While he was eating his breakfast, he heard the doorbell ring.（强调吃饭的过程中） While I was studying, you fell asleep.当我学习的时候，你睡着了。 Just as he was speaking, there was a loud explosion.正当他要说话时，传来很大的爆炸声。 As I was going out, it began to rain.（强调两个动作先后发生） As spring warms the good earth，all flowers begin to bloom．(as有“随着”的含义)3.3．till／until，表示“一直到……”，主从句都用肯定式；表示“直到……才”，主句否定，从句肯定。 He worked until it was dark. 他一直工作到天黑。 He did not get up till his mother came in. 一直到母亲进来他才起床。3.4．once“一旦”，by the time“到……时”。 Once you see her, you will find what I said is true. 一旦你见到她就会发现我说的是对的。 Once (it is）published, this book will be very popular. 一旦出版，这本书会大受欢迎。 by the time+现在时，主句用将来完成时。 By the time he arrives, we will already have left here. 等他到达时，我们将已离开这儿了。 by the time+一般过去时，主句用过去完成时。 By the time he arrived, we had already left here.他到达的时候我们早已离开这儿了。3.5．as soon as，the moment表示从句动作一发生，主句动作随即发生，通常译为“一……就”。 As soon as I finish the work, I'll go to see you. 我一完成工作就会来看你。 I shall come as soon as I've finished my supper. 我一吃完晚饭就来。 She came to the scene the moment she heard the news.她一听到消息就来到现场。3.6．since“自从”， before“在……前”，after“在……后”，It was not long before意为“不久”。 since引导从句用非延续性动词或“过去时间点”或“过去时间段+ago”，主句用完成时态。 Since he graduated, he has worked in this city. 他毕业后一直在这个城市工作。 I haven't seen him since last year/ three years ago. 去年以来/3年来，我没见过他。 He handed in his paper before the bell rang. 他在铃响前交了卷子。 It was not long before he came back. 不久他就回来了。 I wrote back to ... ...