Unit 1 课时3 Understanding ideas-Grammar（教学课件）英语新教材外研版九年级上册

该初中英语课件聚焦if条件状语从句和because原因状语从句，通过詹浩静保护木偶艺术的故事导入，在语境中呈现含目标语法的句子，搭建从感知到归纳规则的学习支架，帮助学生理解语法结构与应用场景。 其亮点在于融合文化意识与语言能力培养，导入故事和写作任务渗透传统艺术保护，增强学生责任意识；通过口诀、对比练习（如because与because of）提升思维品质，写作提供提示框架降低难度，助力学生应用语法完成故事，教师可直接使用分层练习和范文，提高教学效率。

Unit 1 Teenagers today Grammar 语法课 学习目标 2. 运用 if 或 because 完成句子合并、短文填空两类基础句型练习。 （应用实践） 1. 识别 if 引导条件状语从句、because 引导原因状语从句的句子 结构并归纳语法规则（学习理解） 3.借助提示框架与配套句型，完成一篇关于承担责任的个人小故事写作，树立保护民间传统艺术的责任意识。（迁移创新） Lead in Zhan Haojing is a high school student and a(n) ¹________________. Her ²________________ are both among the best Minnan puppet performers. When she was little, she loved the art. But as a teenager, she felt ³__________ to it and didn’t want to perform. One day, her mum showed her a video that ⁴__________ her. She suddenly remembered her love for the art, but she was not sure if she should ⁵_________. She posted ⁶___________ online and received warm ⁷__________. This made her realise it was her ⁸____________ to keep the art alive. To make the art popular among ⁹______________, she held a show at school. The students were ¹⁰______________ in the show and asked where to see more. This gave her more courage. Since then, her shows have drawn attention from ¹¹________________. She believes that with more and more people joining in, the magic of this traditional art will ¹²______________. Let’s retell. puppet performer grandpa and mum less close amazed continue her doubts responsibility answers young people (completely) lost home and abroad last forever 5 Read the sentences from the reading passage and summarise the grammar rules. (a) If I move my fingers, it will come to life! (b) I felt less close to the art because people thought puppets were old-fashioned. 条件状语从句 原因状语从句 Presentation Presentation 条件状语从句 条件状语从句定义： 条件状语从句是英语状语从句的一种，由if、unless、as long as等连词引导，用于表示某种条件下可能发生的情况。 Presentation If引导的条件状语从句结构 If I move my fingers, it will come to life! The art will be popular again if young people are interested in it. If +主语+谓语+…， 主语 + will + 动词原形+… 主语 + will + 动词原形+… if +主语+谓语+… if引导的条件状语从句的位置灵活，可以放在主句之前，也可以用逗号与主句隔开;也可以放在主句之后。 I didn’t want to take part in the performances unless I was asked to. 主句 + unless + 从句（条件） Presentation If引导的条件状语从句时态 If I move my fingers, it will come to life! The art will be popular again if young people are interested in it. 主句使用____________，从句用____________。我们称为____________原则。 一般将来时 一般现在时 主将从现 遵循“主祈/情从现"原则， 即主句使用祈使句或含情态动词。 She may come with us if she arrives in time. 1.If it ____ (rain) tomorrow, we ________ (not go) to watch puppet shows. 2.I _________ (tell) you more about Minnan puppets if you ______ (be) free this afternoon. 3.If young people ______ (love) traditional arts, they __________ (keep) them alive forever. 4.You __________ (learn) lots of folk art knowledge if you ______ (visit) the art museum. 5.She may continue performing if she ______ (get) warm support from others. Exercises 用所给动词正确形式填空。 rains won’t go will tell are love will keep will learn visit gets Presentation 原因状语从句 原因状语从句定义： 原因状语从句用于说明主句动作或状态的原因，由从属连词引导，常见引导词包括 because、since、as、now that 等，不可与 so 连用。‌‌ Presentation I felt less close to the art because people thought puppets were old-fashioned. A truth hit me - it was my responsibility to keep the art alive because the love for puppets was in my blood. + because +从句（主语+谓语） 主句（主语 + 谓语 ） because表示直接原因且语气最强，常用于回答why引导疑问句。一般放主句的后面，在句首时要用逗号分开。 Because引导的原因状语从句结构 Presentation because VS ‌because of He was late because he missed the bus. He was late because of missing the bus. because+完整句子（主+谓） because of +名词/代词/动名词 注意：because 和 so 不可同时出现在一个句子里。 Presentation since：既然 一般放于主句之前, 表示已知的、 显然的，理由较为正式， 语气比because弱。 Since you don't trust him, you should not employ him. 你既然不信任他，你就不该雇用他。 表示 “双方已知的原因”，含有对比说明的意味，语气比since弱， 较为正式， 位置较为灵活(常放于主句前)。 As you are tired, you had better rest. 既然累了， 你最好休息一下。 as：既然 Presentation 口诀： 原因从句三兄弟，because、since 和 as； 回答 why 用 because，直因语气最有力； 已知情况用 since/as，句首使用最常遇； 切记一点要牢记，because 不和 so 在一起！ 1.I want to learn puppet art ______ it carries our traditional culture. A. since B. because C. as 2.______ you have great interest in folk arts, you can join our club. A. Because B. Since C. Why 3.The old statues are well protected ____ people realize their great value. A. because B. as C. since 4.______ Easter Island lies far from the mainland, it was unknown to many people in the past. A. Because B. Since C. If Exercises 单选题。 B B A B Practice 6 Connect the sentences with if or because. 1. More young people got to know this art. Zhan Haojing gave puppet shows at school. 2. Wang Meng joins the traditional art club. She will learn how to protect traditional art. More young people got to know this art because Zhan Haojing gave puppet shows at school. Wang Meng will learn how to protect traditional art if she joins the traditional art club. Practice 7 Complete the notice with if or because. because if because If 8 Introduce your own story about taking responsibility. Use the words and expressions from the reading passage and the Useful expressions to help you. When did it happen? Where did it happen? Production Who was there? Last Saturday In a park Many visitors and I Useful expressions •... expressed their love for... •... encouraged me to... •It was my responsibility to... •... will... if young people... •I believe... 8 Introduce your own story about taking responsibility. Use the words and expressions from the reading passage and the Useful expressions to help you. What did you do? How did you feel? Production I volunteered in a park and gave directions to visitors. I felt happy and proud. Last Saturday, I volunteered in a park and gave directions to visitors. I had to stand in the sun and answer people’s questions. My throat was dry and my legs hurt. But I didn’t give up because it was my responsibility to help. I kept smiling and spoke patiently. Many visitors thanked me for my help, and their kind words encouraged me to hold on. I felt happy and proud. I believe if more young people do their duty to help others, the world will be a better place. Production Sample 1.活灵活现；变得生动 2.与…… 疏远 3.过时的 4.逐渐了解 5.采取行动 6.处于危险中 7.民间艺术 8.传统艺术 9.担任志愿者 10.学习如何保护 11.承担责任 Language Points Useful expressions come to life less close to old-fashioned get to know take action in danger folk arts traditional art work as volunteers learn how to protect take responsibility Exercises 一、单选题。 1. We walked slowly ______ the road was wet. A. if B. because C. unless 2. If she ______ to the party, she will have fun. A. go B. goes C. will go 3. If I ______ free next Sunday, I will visit my grandma. A. am B. will be C. was 4. I can’t go out ______ my parents don’t allow me. A. because B. unless C. as 5. ______ English every day if you want to learn it well. A. Practise B. Will practise C. Practises 6. If Tom ______, tell him to wait for me. A. come B. comes C. will come B B A A A B Exercises 二、完成句子。 1.如果我们不采取行动，很多民间艺术会消失。 Many folk arts will disappear ____ we don’t ______ _________. 2.我们可以在博物馆担任志愿者，学习如何保护传统艺术。 We can _____ ___ ___________ in the museum and ______ ____ ____ _________traditional art. 3.传承非遗是我们每个人的责任。 It’s everyone’s job to ______ _____________ to carry on folk arts. 4.当皮影艺人动起手指，木偶就会变得活灵活现。 The puppet will ______ ____ _____ when the artist moves his fingers. if take action work as volunteers take responsibility come to life learn how to protect Summary Grammar If 引导的条件状语从句 原因状语从句 主将从现 主情从现 主祈从现 回答 why 用 because 已知情况用 since/as because 不和 so 在一起 Homework Must do： 1.背诵 重点英文短语 ； 2.用 if 或 because 各造 2 个句子，每句至少包含一个本课短语。 Choose to do： 1.完成课本写作任务：写一段关于承担责任的个人小故事，用上至少 3 个本课短语和 2 个 句型。 2.小组合作：搜集一种本地民间艺术，用 if/because 句型写 3 条保护倡议，下节课分享。 Thank you $