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课件网) Module 2 Public holidays 外研九年级上册 Module 2 Unit 3 Language in use Learning objectives 1.学会使用本课的单词和重点短语。 2.能在情景对话或写作中熟练掌握各种状语从句。 3.熟练掌握本课对公共假日的表达法，并能准确运用。 Read the sentences and talk about what you can find. While we're staying with our friends，we're going to spend one day in Qingdao. Before we begin dinner，my father gives thanks for the food. When it is all over，everyone helps wash the dishes. And my family always go somewhere interesting as soon as the holiday begins. We have celebrated the festival since the first pioneers from England arrived in America. After they landed，their first winter was worse than any English winter. 时间状语从句：用从句来表达一件事情或一个行为发生的时间。 由after, as soon as, before, since, until, when, while引导时间状语从句。 Warming up 引导时间状语从句:“当......的时侯”，既可以表示在某一时间点发生的事，又可以表示在某一时间段发生的事。 主句与从句描述的动作或事情可以同时发生,也可以先后发生。 I loved math when I was at school. 我在学校时喜欢数学。 He looked aside when I spoke to him. 我对他说话的时候，他向旁边看。 1. 由 when 引导的时间状语从句 引导时间状语从句，意为“当……时候”“在……期间”。 强调主句和从句的描述的动作同时发生。 His parents died while he was at school. 在他上学期间他父母去世了。 2. 由 while 引导的时间状语从句 as soon as引导的时间状语从句 as soon as表示“一……就……”，强调动作紧密相连。 We began to work as soon as we got there. 我们一到那儿就开始工作了。 e.g. I will phone you as soon as I arrive. 我一到就会给你打电话。 如何主句表示将来时，从句常用现在时。 when只能指一段时间，而不能指时间点。 从句的动作或与主句的动作同时发生，或主句的动作是在从句动作的过程中发生的。 因此，从句中的动词必须是表示延续性动作或状态的动词。 While I was sleeping, my brother came in. 当我在睡觉的时候，我弟弟进来了。 He visited a lot of places while he was traveling. 他在旅途中参观了许多地方。 when与while 都意为“当……的时候”。 when 引导的时间状语从句, 谓语动词既可以是持续性的, 也可以是终止性的； 而while引导的时间状语从句, 谓语动词只能是持续性的, 并且常用进行时态。 When he woke up, it was eight o’clock． While he woke up, it was eight o’clock． When I was waiting for a bus, I met her． While I was waiting for a bus, I met her． 试比较： √ × √ √ since “自从…” We’ve celebrated it since 1777. Since 常与完成时连用 As soon as “一…就…” And my family always go somewhere interesting as soon as the holiday begins. As soon as 强调动作紧密相连。 Grammar until “直到…” We’ll stay there until the end of the holiday. I didn’t arrive home until 11 o’clock yesterday. until 1.表示动作或状态一直持续到某时刻 2.和not连用，表示“直到…才…” as as “一边…一边…” 表示主句和从句的动作同时发生； “随着”或者一个动作随着另一个动作的发生 As she walked into the room, she sang happily. As time goes by, she grows taller. Grammar 6. since 的用法 “自从……”，常与完成时连用。 I have known Bill since ... ...
