Unit4 Grammar 课件-2024-2025学年牛津译林版九年级英语上册

GROWING UP time CLAUSE UNIT 4 1 & Using when while & Using before after Time clause & Using since till, until & Using as soon as whenever & 01 Use before after to introduce a time clause 3 E.g. He remained there for about a year before the NBA took notice of him. before means ________ than a certain time. earlier later They walked about 30 miles to the west before they saw a village. Time passed quickly and three months went by before Tom knew it. B C It will be half a year before you graduate from this school. A 要过多久…才… 不久…才… 不知不觉就…..； 还没弄清就…… 动作进行到什么程度才…… It will be+时间段+ before... It will not be +时间段+ before... E.g. After he graduated, he was forced to play in another basketball league. after means _______ than a certain time. earlier later You should turn off the lights before you leave the room. = You should turn off the lights before leaving the room. Time passed quickly and three months went by before I knew it. Tom went to school after he finished his breakfast. = Tom went to school after finishing his breakfast. The sun came out after the storm stopped. before/after+句子=before/after + doing sth. the subject of the main sentence and that of the time clause are the same. When & 02 Use when while to introduce a time clause 8 E.g. When he finally got the chance, he scored 20 points in his first game. when means __________ a certain time. at or during E.g. While (he was)attending junior high, Spud tried out for the school team. while means ______ a certain time. during 短暂性/延续性 延续性 The days get longer when spring comes . When my sister is sweeping the floor, I was washing the dishes. While my sister is sweeping the floor, I was washing the dishes. . When While At a certain time—时间点 During a certain time—时间段 During a certain time—时间段 My First Template The days get longer when spring comes. 短暂性 延续性 V When/While my sister is sweeping the floor, I was washing the dishes. When When/While When (she is) in trouble, she always asks for my help. I was about to leave when the phone rang. While (I am) travelling, I like to buy some postcards. While we were discussing the problem, our teacher walked into the classroom. 在when和while引导的从句中， 当主句和从句主语一致且从句中有be动词时， 可省略从句的主语和be动词， 构成when/while + doing结构 xercise P54 I go jogging every morning. Then I have breakfast. ________________________________________________________________________________________________ a. I go jogging every morning before I have breakfast. b. After I go jogging every morning , I have breakfast. 2. I practised playing basketball for hours. I felt tired out. _________________________________________________ _________________________________________________ After 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. ___________________________________________ _______________ I met Peter while (I was) waiting at the bus stop. While (I was) watching TV, I received a call from my uncle. I was ready to go to bed when my father came back from work. & 03 Use since till/until to introduce a time clause 17 E.g. You 've been happy since I first met you. since means ________ a certain time. from since + 过去的时间点 /动作 主句： 现在完成时 Mr Brown has been in Beijing since you left. I’ve lived here since I was born. They have been friends since they were at primary school. E.g. Spud reminded in another basketball league for about a year till/until the NBA took notice of him. till/until means ________ a certain time. up to Spud remained in another basketball league for about a year till/until the NBA took notice of him. Do not wake me up until you finish your work. till/until: 直到...为止 not...until: 直到...才 短暂性 延续性 V 开始 结束 xercise P55 1.I have been crazy about playing basketball ______ I was a little boy. 2.The weather has been awful this week. The rain did not stop ______ yesterday evening, so we could not practise basketball for several days. 3.We played basketball in the playground this afternoon _______ it was getting dark. 4.It is the first time we have played basketball______ last Monday. We enjoyed ourselves very much. 5.I waited for 20 minutes at the bus stop________ the bus arrived. 6.It is Friday evening. I will not go to bed_______ I finish watching my favourite TV programme. since until until/till since until/till until & 04 Use as soon as whenever to introduce a time clause 24 E.g. It began to rain as soon as I left the house. as soon as means _______ something happens, or ___________ after something has happened. when a short time E.g. I can read books whenever I want to. whenever means at____________. any time =every time xercise P56 David will go to play basketball ___________ school is over. He watches the NBA __________ there is a game on TV. 3.__________ he talks about basketball, he gets excited. 4.___________ he learnt that the NBA players would come to China, he tried his best to get a ticket. as soon as whenever As soon as Whenever Yao Ming was born in Shanghai in 1980. He got his first basketball__________ he was only four years old, but he did not become serious about basketball_________ he was 12. Yao joined the Houston Rockets in 2002 and became the best Chinese player to ever play in the NBA.____________ he went to the USA, he knew little English, but he quickly learnt the language. The best moment in his career was in 2004---he scored 41 points in a game against the Atlanta Hawks. When Yao Ming was living in the USA, he returned to China __________ he was needed. He took part in the Olympics in 2004 and in 2008 as one of the Chinese athletes.__________ he ended his basketball career, Yao Ming has done more charity work, especially for poor Chinese teenagers. when until/till Before/When whenever Since/After & Using when while & Using before after Summary & Using since till, until & Using as soon as whenever & Using before after before after V.S. 在...之前 在...之后 & when while V.S. 当...时 在...期间 在...期间 Using when while 短暂性/延续性 延续性 & Using when while 在when和while引导的从句中， 当主句和从句主语一致且从句中有be动词时， 可省略从句的主语和be动词， 构成when/while + doing结构 & since 自从...以来 Using since till, until 主句：现在完成时 since引导的从句：一般过去时 & V.S. till/until 直到...为止 Using since till, until not...till/until 直到...才 短暂性 延续性 开始 结束 & as soon as 一...就... Using as soon as whenever & whenever 每当，任何时候 Using as soon as whenever =every time thanks for listening 38 $$