牛津深圳（广州）版七年级下册Unit 8 From hobby to career语法：when引导的时间状语从句&used用法知识点+练习（含答案）

中小学教育资源及组卷应用平台 牛津深圳（广州）版七年级下册 Unit 8 From hobby to career 语法1：when引导的时间状语从句知识点讲解 一、时间状语从句定义 ?时间状语从句用于说明主句动作发生或进行的时间。在复合句中，由时间连接词引导的状语从句叫做时间状语从句。时间状语从句的连接词主要有：when, while, as soon as, before, after, until, as. 如： When she lived in London, she made a lot of new friends. 当她在伦敦居住时，她结交了很多新朋友。 While the boy was playing in the room, his brother began to cry. 当那个男孩正在房间玩的时候，他弟弟开始哭起来。 I will tell him the news as soon as I arrive there. 我一到那里，就会告诉他这个消息。 I had a shower before I went to bed. 我在睡觉之前洗了个澡。 As time goes by, I like this city better and better. 随着时间的推移，我越来越喜欢这座城市。 when引导的时间状语从句 (1)构成 ?when作为连接副词，引导时间状语从句，意为“当……时候”。 when从句可以放在主句前，也可以放在主句后。当从句置于主句前时，从句应加逗号（，）。 Eg: When I went out, it started to rain.我出去的时候，天下起了雨。 It started to rain when I went out.我出去的时候，天下起了雨。 【即学即练】 ( )1 _____ someone catches a big fish, everyone gets _____. A. When; exciting B. Before; exciting C. When; excited D. Before; excited ( )2 Grandma fell asleep _____ she was listening to the music. A. after B. before C. when D.if 用法 时态 1.当表示现在的时候，主句和从句同用现在时态；(主现从现)如：Mandy usually talks to her friends when she is on her way to school.曼迪上学的路上通常会和朋友聊天。2.当表示过去的时候，主句和从句同用过去时态；(主过从过)如：When I went out, it started to rain.我出去的时候，天下起了雨。3.当表示将来的时候，主句用一般将来时，从句用一般现在时表将来。(主将从现)如：When I grow up, I’ll be a nurse and look after patients. 我长大后要当一名护士，照顾病人 【即学即练】 一、按要求完成句子。 1. 当他病的时候，他不上学。（完成句子） He doesn’t go to school _____ _____ _____ _____. 2. 当下雨的时候，我就坐公交车回家。(翻译成英文) . 3. 当我五岁时，我开始学钢琴。(翻译成英文) . 二、连词成句。 1. get up, when, you, wake me up, please . 2. she, was ill, she, when, stayed, at home . 3. when, grows up, he, wants, he, to be a doctor . 4. I, used to, when, I, be, thin, was young . 5. he, swim, used to, in the river, when, was a child, he . 知识拓展 从属连词 用法 例句 While ＂与……同时，在……期间＂，从句常用延续性动词或表示状态的词 Don’t talk loud while（as）others are working. 别人工作时，请勿大声说话。 When ＂当……时＂，表示主句的动作和从句的动作同时或先后发生，从句的动词可用延续性动词，也可用非延续性动词 It was raining when we arrived. 我们到达时，天正下着雨。when you read the poem a second time, the meaning will become clearer to you. 当你再读一遍这首诗，你就会更清楚它的含义。 As ＂正当，一边……一边，随着＂，表示两个动作同时发生或某事发生时，另一个动作发生了 As time went on, his theory proved to be correct. 随着时间的推移，他的理论被证明是正确的。 Till/Until 用于肯定句时，表示＂直到……为止＂，主句必须为延续性动词；not...until/till表示＂直到……才＂，主句常用短暂 ... ...