Unit 3 Never give up Grammar课件2026-2027学年译林版九年级英语上册

该初中英语课件系统梳理了Unit3 "Never give up"中时间状语从句的核心连词（when, while, before, after等）用法，通过歌词填空、文本阅读及例句解析，构建"词义-语境-用法"知识网络，如对比when（短暂/延续性动词）与while（延续性动词、对比）的差异，关联before/after的省略结构与完整句式。 其亮点在于情境化与分层设计，以《See you again》歌词填空激活语言能力，通过Van Gogh事迹文本培养思维品质（分析动作时序），练习题从基础填空到综合选择覆盖不同层次。这种设计助力学生巩固语法规则，教师可通过当堂检测精准把握学情，提升复习效率。

Unit3 Never give up Grammar It's been a long day without you my friend. And I'll tell you all about it ____ I see you again. We've come a long way where we began. Oh I'll tell you all about it ____ I see you again. _____ I see you again. when when When 时间状语从句 While Vincent van Gogh was alive, few people appreciated his paintings, and he only managed to sell one work before his death. He met serious health troubles, and he went through great suffering when his illness became worse. However, he kept painting all the time while life was full of difficulties. After he passed away, the public finally realized his great contribution to the art world, and now he is recognized as a world-famous artist loved by a wide audience. Read the text below and pay attention to the use of before, after, when and while. When, while, before,after are time conjunctions While I was teaching in the front, you were talking to others. while 当……时+延续性动词（进行时态，同时发生) While my mother was watching TV, I was reading a book. while “在...期间; 在…的时候”强调主 句动作和从句动作是同时发生的。 when“当…时候”+短暂性V/延续性V(可有先后顺序或同时发生) When the boys were playing football, it began to rain. When I got home yesterday, it began to rain. When I came in, you were reading English. Close the windows before you leave the room, please. before 在……之前, 表示主句动作发生在从句动作之前。 You should turn off the lights before leaving the classroom. I played football after I finished my homework. after 在……之后 ，表示主句的动作发生在从句的动作之后。 Lucy went to bed after she read a storybook. 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。 You should turn off the lights _________ you leave the room. = You should turn off the lights _____________ the room. 2. Tom went to school ________ he finished his breakfast. = ______________ his breakfast. 3. Time passed quickly and three months went by __________ I knew it. 4. The sun came out ________ the storm stopped. Fill the blanks with “before” & “after” before before leaving after after finishing before after 注意第一句与中文的区别：走之后关门。 8 The days get longer _________ spring comes. ___________ the boys were playing football, it rained. 3. I was about to leave _______ the phone rang. 4. Jack is strong ______ his brother is weak. Fill the blanks with “when” & “while” when When/while when while 表对比 注意第一句与中文的区别：走之后关门。 9 1. He brushed his teeth __________ he went to bed. 2. The children asked some questions ______ the teacher left the classroom. 3. ______ I was writing a letter last night, he was chatting with his friends on the Internet. 4. Mr. Black went out _______ he answered the phone. 5. They were playing tennis ______ it began to rain heavily. 6. Rebecca went to bed _____ she got home because she was so tired. 7. People should be very careful ______ they cross busy roads. 8. Paul found somebody’s wallet on the ground ____________ he was walking to the bus stop. when, while, after或 before before before While after when after when when/while Read the text below and pay attention to the use of since and till/until. Using since,till and until Since I learnt about the amazing stories of Stephen Hawking, I have often thought of his example when I find something challenging. I won't give up till I achieve my goal. I am also very impressed by Hawking's books. Many of the questions about the universe were too difficult for common people to understand until Hawking wrote his books. 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 一……就 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 每当，任何时候， 1.since（由于，既然，表原因） eg.Since you are tired, you had better have a rest. 2.since（自从……）常与现在完成时连用。 since +过去时间或一般过去时的句子或时间段+ago e.g. John has worked in this factory since 1998/ since he came to Wuxi/since two years ago. 1. It started raining ___________ we got out of the car. 2. You are welcome to come and stay with us _________ you like. 3. _____________ he wakes up, he checks his phone for messages. 4. ___________ I see them, they are talking about football. 5. I’m going to have a shower__________ I get home. 6. He will be back tomorrow. I’ll give him the message_______________ I see him. as soon as 或 whenever 填空 as soon as whenever As soon as Whenever as soon as as soon as Grammar小结 1.before, after, when, while, till, until, as soon as, whenever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。主句用过去时，从句用过去的某种时态。 e.g. She won’t go home until she finishes her work. He lived here when he was 6. 2.当主句和从句的主语是同一个人时，还可用： before/ after/ when/ while doing sth. e.g. You’d better not listen to music while doing your homework. =You’d better not listen to music while you do your homework. 4.while（当……时）引导的时间状语，while +进行时。 when引导的时间状语从句中的动词可以是短暂性动词或延续性动词。 while引导的时间状语从句中的动词必须是延续性动词。 e.g. Someone knocked on the door while I was watching TV. while (然而，表对比) eg.Jack is strong while his brother is weak. 5.since（由于，既然，表原因） eg.Since you are tired, you had better have a rest. since（自从……）常与现在完成时连用。 since +过去时间或一般过去时的句子或时间段+ago。 e.g. John has worked in this factory since 1998/ since he came to Wuxi/since two years ago. school. 当堂检测 IIChoose the correct answer. ( )1. You can’t watch TV____ you finish your homework. A. after B. if C. when D. before ( )2. ---What’s your plan this summer holiday? ---I’ll go to Beijing____ the school team ends. A. whenever B. till C. as soon as D. before ( )3. __ I was in the US, I made many American friends. A. Although B. While C. Unless D. Until ( )4. Many students didn’t realize the importance of study____ they left school. A. when B. until C. as D. after ( )5.You should go over your test paper__ you hand it in. A. while B. when C. before D. after D C B C B ( )6．Peter will cook for his parents_________the International Day of Families comes． A．unless B．when C．until D．although ( )7．My father likes reading a newspaper___he is having breakfast A·until B．because C．while D．though ( )8．My mom took me to the park___she washed the clothes． A．now B．however C．whenever D．after ( )9．一Can you tell me your decision right now? 一Let me think about it carefully______I give you the answer. A·before B．after C．since D．as soon as ( )10．一Would you please give this book to Mary? 一Sure．I’ll give it to her________she comes back. A．before B．till C．until D．as soon as B C D A D Homework 1. 完成grammar练习 2. 复习grammar所学的连词 Lavf57.62.100 $