Unit 4 Grammar 课件2022-2023学年牛津译林版九年级英语上册

9 年级上册 Unit 4 Grammar Free talk Guess： Who is he? Hobby: basketball Birthplace: ShangHai University: Shanghai Jiao Tong Basketball team: Huston Rocket watch and find Presentation1 1. He remained there for about a year before the NBA took notice of him. 2. After he graduated, he was forced to play in another basketball league. 3. When he finally got the chance, he scored 20 points in his first game. 4. While (he was) attending junior high, Spud tried out for the school team. 时间状语从句 Using before, after, when and while Presentation1 时间状语从句是指在复合句中充当时间状语的句子。 before 在……之前, 表示主句动作发生在从句动作之前。 Close the windows before you leave the room, please. 在你离开房间前，请关上窗。 after 在……之后 ，表示主句的动作发生在从句的动作之后。 I went to school after I finished my breakfast. 我吃完早饭去上学。 I go to jogging every morning. Then I have breakfast. ________________________________________ 2. I practised playing basketball for hours. I felt tired out. ________________________________________ 3. I met Peter. I was waiting at the bus stop. ________________________________________ 4. I was watching TV. I received a call from my uncle. __________________________________________________ 5. I was ready to go to bed. My father came back from work. ____________________________________________________ A.Finish the exercises on Page 54. I go jogging every morning before I have breakfast. After I practised playing basketball for hours, I felt tired out. After I practised playing basketball for hours, I felt tired out. After I practised playing basketball for hours, I felt tired out. After I practised playing basketball for hours, I felt tired out. Practice1 when 当……时，表示主句动作发生的特定时间。 The days get longer when spring comes. 春天来时，白天变长了。 while当……时，引导的从句用进行时态，从句谓语动词必须是延续性的动词。 While the boys were playing football, it rained. 当男孩子们踢足球时，下雨了。 【注意】while 后面还可以跟表示状态的词。 While I was in Beijing, I visited a lot of places. 我在北京的时候，我参观了很多地方。 Presentation1 【拓展】在含有when和while引导的主从复合句中，当主句和从句的主语一致，并且从句中有be动词时，可以省略主语和be动词