Module 2 Public holidays Unit 3 Language in use(共33张PPT)课件.pptVIP

Unit 3; make short speeches give thanks for … arrive in America by ship cross the Atlantic grow corn the following year lay the table once a year as well enjoy oneself;1. While we are staying with them, we are going to spend a few days in Qingdao. 2. It’s the last day before the new school year begins. 3. When September comes, it starts to get cooler. 4. We also go back to school as soon as the May Day holiday is over. 5. Let us enjoy ourselves until we go back to school. 6. We have celebrated the festival since the first pioneers from England arrived in America.;1. When September comes, it starts to get cooler.;Adverb Clauses of Time (时间状语从句) ;◆when从句的动作可与主句的动作同时发生，也可先于主句的动作；从句的谓语动词可以是延续性动词，也可以是瞬间性动词。并且when有时意为“就在那时”。如： When I got home, he was watching TV. 当我到家的时候，他正在看电视。 Mozart started writing music when he was four years old. 当莫扎特四岁的时候，开始写音乐作品。 I was about to go out when the telephone rang. 我刚要出门，电话铃响了。 ;◆while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。如： 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。 ;;;◆before表示主句的动作发生在从句之前。如: I won’t tell you the truth before he comes back. 他回来之前我是不会告诉你事实的。 ◆after表示主句的动作发生在从句的动作之后。如： After she finished the work, she went to have supper. 她完成工作后去吃晚饭了。 ;◆as soon as表示主句的动作紧随从句动作之后发生的。表示“一……就”。如： I will call you as soon as I arrive home. 我一到家就给你打电话。 I hope to find him as soon as possible. 我希望尽可能快地找到他。 Mother became unhappy as soon as I mentioned his name. 我一提到他的名字，母亲就变得很不开心。;◆until（till）在肯定句中，常与延续性动词连用，意为“到……为止”；在否定句中，常与表示瞬间性动作的动词连用，意为“直到……才”，这时till 和until可以与before 替换。如： Last night I waited until eleven o’clock, but he didn’t return. 昨天晚上我一直等到11点, 但他还没回来。 My son won’t come home until it is dark. 我儿子不到天黑不回家。;◆ since可引导时间状语从句， 意思是“自从 … 的时候起；从此；