Unit 3 Grammar课件 2026-2027学年译林版初中英语九年级上册

该初中英语课件聚焦时间状语从句，系统讲解before、after、when等引导词的用法。通过对话导入，结合阅读文本总结用法，分阶段构建从基础到复杂的学习支架，帮助学生逐步掌握从句规则。 其亮点在于采用任务型教学，如补全博客、邮件写作等活动，结合Stephen Hawking等励志案例，培养学生语言运用能力和思维品质。学生在实践中提升语法应用能力，教师可借助系统练习和检测高效开展教学。

Unit 3 Never give up Grammar 23021 能掌握before、after、when和while引导的时间状语从句。 能掌握since、till和until引导的时间状语从句。 学习目标 能掌握as soon as和whenever引导的时间状语从句。 23021 Lead in 23021 Read the text below and pay attention to the use of before, after, when and while. Then summarize their usages. 新课讲授 Read and summarise When I was a child, my dream was to become an Olympic swimmer. One day, while I was training, I hurt my shoulder. I had to get months of treatment. When my shoulder was better, I had to work hard to get back into shape. After I got well, I trained for four years and finally made my dream come true. My coach was proud of me. He was sure about my success before the accident happened. And he never gave up on me even during the most difficult times. 23021 时间状语从句 I get up at six . when it is dark. 时间状语从句是指在复合句中充当时间状语的句子。 When the weather is good, my grandpa likes going fishing. e.g. I go to bed when it is dark. Summary 状语：状语是修饰动词、形容词、副词等的句子成分。说明时间、 地点、 原因、 目的、 结果、 条件等。 注意：我们可以用before、after、when和while引导时间状语从句，这些词既可放在句首，也可放在句中。 23021 Close the windows before you leave the room, please. Before going to bed, Tom needs to take a shower. before意思是“在……之前”，表示主句的动作发生在从句动作之前。 e.g. You should turn off the lights before leaving the classroom. Before he left, he visited his grandpa. 23021 I played football after I finished my homework. They went to the library after they watched a document about Hawking. after意思是“在……之后”，表示主句的动作发生在从句的动作之后。 e.g. Lucy went to bed after she read a storybook. 23021 when意思是“当……时”，表示主句的动作发生的特定时间。when 引导的从句的谓语动词可以是延续性的，也可以是瞬时性的 When the boys were playing football, it began to rain. When I got home yesterday, it began to rain. e.g. When I came in, you were reading English. When I was watching TV, my mother was reading a book. 23021 While I was teaching in the front, you were talking to others. While the boys were playing football, the girls were watching them. while意思是“当……时”，强调主句的动作和从句的动作是同时发生的，while 引导的从句的谓语动词必须是延续性的。 While my mother was watching TV, I was reading a book. while 还可以表示“在……期间”，表示主句的动作发生在从句的动作进行的过程中。 23021 注意：在 when 和 while 引导的从句中，当主句和从句的主语一致，并且从句中有 be 动词时，从句可以省略主语和 be 动词，构成“when/while + 动词 -ing/介词短语”结构。 e.g. While (I am) travelling, I like to buy some souvenirs. 旅游时我喜欢买些纪念品。 When (she is) in trouble, she always asks for my help. 她遇到困难时总是向我求助。 23021 Practice When we use before, after, when or while _____________ (at the start, in the middle) of a sentence, the opening clause is followed by a comma. at the start 23021 Simon is writing a blog post about his uncle. Complete it below using before, after, when or while. Let me tell you the story about my uncle. (1) ___________ my uncle was a student, he wanted to be a famous basketball player, He played in his school's basketball team. He was pretty good! Sadly, my uncle had a bad accident (2) ___________ he was training. He hurt his knees badly, and they never fully got better. My uncle was so sad! (3) ___________ he had his accident, everyone thought he would become a great basketball player. However, he never gave up his love for the sport. (4) ___________ he got over the accident, he decided to become a basketball coach. Today he helps young athletes achieve their dreams! When while Before After 23021 Think of a person with a strong will. Talk with your partner about this person, using before, after, when and while. 23021 Read the text below and pay attention to the use of since and till/until. Then summarize their usages. Read and summarise Since I learnt about the amazing stories of Stephen Hawking, I have often thought of him when I face challenges. I won’t give up till I reach my goal. I am also very impressed in Hawking’s books. Many questions about the universe were too difficult for common people to understand until Hawking wrote his books. When we use verbs like go, leave, arrive and come in the main clause, we should use the structure not ... till/until. Till/Until I achieve my dreams, I won’t leave. Do not give up until you reach your goal! 23021 A Brief History of Time, has been translated into more than 30 languages and sold over 25 million copies since it was first published in 1988. Mr Green has taught in that school since he came to China three years ago. since 意思是“自从……以来”。一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时，即：现在完成时+since+一般过去时。 e.g. They have been friends since they were at primary school. Summary 23021 I waited for 20 minutes at the bus stop till/until the bus arrived. Stephen Hawking kept working till/until he died at 76. till 和 until 意思是“到……为止”，一般情况下两者可以互换，但在句首一般不用 till，而用 until。此外，till 不如 until 正式。即：主句（长动作）+ till/until + 从句 Daniel didn`t watch TV till/until he finished his homework. The rain did not stop till/until yesterday evening. 注意：如果主句中的谓语动词是瞬时性动词，且用否定形式，形成 not ... till/until 结构，则意思是“直到……才（开始）”。即：主句（否定句+短动作）+ till/until + 从句 23021 Practice We can use since, till and until _______________________ (at the start or in the middle, only at the start) of a sentence. at the start or in the middle 23021 Simon: Do you have any big dreams, Sandy? Sandy: Sure. I want to become a famous fashion designer. That has been my dream (1) ___________ I was 10 years old. I know it won't be easy. But I won't stop trying (2) ___________ I succeed. Simon: In that case, I'm sure you'll reach your goal some day. Sandy: Thanks, Simon. I'll teach myself about fashion design (3) ___________ I get a chance to study it further at university. What about you? Simon: Well, (4) ___________ I was very young, my dream has always been to become a good football player. Sandy: I think you can! You've been one of the best football players at school (5) ___________ you were in Grade 7. It won't be long (6) ___________ a good coach notices you. Sandy and Simon are talking about their dreams. Complete their conversation using since or till/until. since till/until till/until since since till/until 23021 Have you set a goal recently? Talk about it with your partner, using since and till/ until. 23021 Read the text below and pay attention to the use of as soon as and whenever. Then summarize their usages. Read and summarise Whenever I face a challenge, I think about my role model. His experience gives me hope as soon as it comes to mind. I know if I never give up, I will succeed. 23021 妈妈一回来，她就关掉了电视。 I will call you as soon as I arrive home. 我一到家就给你打电话。 She turned off the TV as soon as her mother came back. as soon as 意思是“一……就”。 Summary 23021 每当他感到疲惫时，都会听音乐。 Whenever you need help, you can ask me. 无论你什么时候需要帮助，都可以找我。 He listens to music whenever he feels tired. whenever 意思是“每当；无论何时”，whenever可用every time/no matter when替换。 23021 Practice We can use as soon as and whenever _______________________ (at the start or in the middle, only at the start) of a sentence. at the start or in the middle 23021 SUBJECT Don't give up your dream Hi Linda, Thanks for your email. I'm sorry to hear that you're thinking of giving up your dream of becoming a dancer. I know dancing is important to you. You started dancing (1) ______________ you were just five years old! (2) ______________ I saw that video of your dance last year, I thought you were amazing! I can't wait to see you dance in person. (3) ______________ I was reading your email, I thought about how important it is to have goals. (4) ______________ you know what you want to do in life, you should do everything you can to achieve your goal. I understand training to be a dancer can be hard sometimes, but (5) ______________ you feel like you want to give up, think of how much you love dancing and carry on. It'll be worth it in the end. Don’t give up (6) ______________ you’ve tried your best! Let me know (7) ______________ you make a decision. I’m here for you. Cheers, Zhang Ke Kitty is writing an email to her cousin Linda in the USA. Complete the email using before, after, when, while, since, till/until, as soon as or whenever. when When/While When When/After until/till as soon as whenever 23021 Help Linda write a short reply to Kitty, using the conjunctions you have learnt in this unit. 23021 当堂检测 1. Tigers wait _______ it is dark, then go out to find their food A. since B. until C. as D. because 2. He brushed his teeth ______ he went to bed. A. after B. while C. before D. since 3. —_______ did the rainstorm come? —While we _______ a Physics lesson yesterday. A. When; have had B. While; are having C. When; were having D. While; have 4. David is a bookworm. _________ we see him, he always reads a book. A. Until B. After C. Whenever D. Since 5. —I can hardly believe my eyes. Is that you, Mary? — Yes, it has been almost 20 years ______ we separated. A. before B. since C. after D. until B C C C B 单项选择 23021 Homework ✍ Review the grammar we learnt in this lesson. ✍ Preview Unit 3 Integration. 23021 Lavf57.83.100 $