课题 教学设计 9A Unit4 Growing up Grammar I 授课时间 课型 月 日 New 总第 课时 After learning this period , the students should be able to 1. learn about the adverbial clauses introduced by before, after, when, while, till 目标要求 and until 2. learn about the adverbial words. 学习重点 Some key words , phrases &sentences 学习难点 教法教具 use the object clauses correctly. Task-based approach，Scene pedagogy and Teaching with humor 学 习 内 容 个人设计 教 学 过 程 Step1:Lead in 1It started to rain when we were at the park. 2The telephone rang while the girl was doing her homework. 3Don’t forget to turn off all the lights before you leave the house. 4I will not start to cook dinner until you come back from work. Let the students read the sentences and translate them into Chinese and tell them they are time clauses.The conjunctions are :when,while,before ,until and as soon as. Encourage the students to say out the others.For example,after,till,since Step2:Presentation 1.Choose some students to read the sentences in the book and tell them the difference. When 引导的时间状语从句中可使用短暂性动词和延续性动词。 While 引导的时间状语从句中只可以使用延续性动词。 2. Let the students finish the exercises on page 54 and check the answers. 3. Explanations: since 引导的时间状语从句中通常使用一般过去时，而主句一般使用现在完成时。 till不能用于句首也不能用于not、、until中的until. 4. Let the students finish the exercises on page 55 . Step3:Activities Group the students into a team of four and discuss the topic:school rules .And ask the students to use the conjunctions in this lesson. 1We have to get back to our seats before the bell rings. 2We should not make any noise when the teacher is sleeping. 3We should say hello to the teachers when we meet them. 4We must turn off our mobile phones before we enter the school. 5We cannot talk to each other in class until the teacher asks us to. Step4: Practice Finish the exercises on the self-study Translations:1自从他搬了这里以来，他已经交了很多朋友。2当他在吃第 1 页
晚饭时，他的朋友来了。... Step 5 Summary 1、 before, after, when, while, till, until引导的时间状语从句中，如果主从句都是将来发生的动作，主句用一般将来时，从句用一般现在时。 2、while引导的时间状语从句通常要用进行时。 3、before, after, till, until还可作介词，后接时间名词。 4、当主句和从句的主语是同一个人时还可用：before/ after/ when/ while doing sth. 5、till和until通常可以互换，但当“直到”这词用于句首或与not连用时只能用until。 Step 6 Homework Recite some key words , phrases & sentences. 板书 设计
第 2 页
