Unit 1 Teenagers today Grammar 课件 2026-2027学年外研版英语九年级上册

该初中英语课件聚焦if条件状语从句与because原因状语从句，通过阅读材料例句引导学生总结语法规则，结合表格、例句分步骤讲解定义、主从句位置及“主将从现”等用法，构建从语境感知到规则应用的学习支架。 其亮点在于融合语言能力与文化意识培养，通过粤剧故事写作范例、民间艺术保护通知改写等任务，引导学生用目标语法讲述责任故事，提升思维品质。采用语境化与任务驱动教学，学生能在实践中掌握语法并增强文化责任感，教师可直接使用结构化教学素材提升效率。

Grammar Unit 1 Teenagers today 学习目标 To find and summarize the meaning and usage of adverbial clauses with if and because from the context. To use adverbial clauses with if and because to introduce your own story about taking responsibility. 新课讲授 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 too old-fashioned. What can you find? 5 Read the sentences from the reading passage and summarise the grammar rules. Now find one more sentence with these structures in the reading passage. (a) If I move my fingers, it will come to life! (b) I felt less close to the art because people thought puppets were too old-fashioned. adverbial clauses with if adverbial clauses with if and because 条件状语从句 Presentation 一、条件状语从句的定义 if “如果,假如”,它引导的句子表示某事发生所需要的条件,即“在……条件下,某事才能发生,” 在句子中充当状语,因此称之为条件状语从句。 主句 总结:有if引导的句子,叫 _,另一句子则为 _。 从句 从句 主句 If you‘re happy and you know it, clap your hands. If I have enough money, I will buy an ipad. I will see a doctor if I am ill. I will travel around the world if I have enough money. 总结:从句在前,主句在后,_ 逗号隔开; 主句在前,从句在后,_逗号隔开。 有 没有 If I have enough money, I will travel around the world If I am ill, I will see a doctor. If I am hungry, I will eat some food. If it rains tomorrow, I will watch TV at home. 总结①:在if引导的条件状语从句中,主句用将来时, 从句用现在时,简称 _. “主将从现” hungry, eat some food rain, watch TV rains am will watch will eat 二、学习条件状语从句要注意的问题 Please call me if she _ (pass) the exam. Please dress him if he _(feel) cold. 总结②:在if引导的条件状语从句中,主句用祈使句,从句用现在时,简称 _。 passes feels “主祈从现” We may become lazy if we _ (have) robots do everything for us. You must stop if the traffic light _ (be) red. 总结③:在if引导的条件状语从句中,主语含有 can, must, may, should等情态动词时,从句用现在时,简称 _。 “主情从现” is have 条件状语从句的其他引导词 unless, as/so long as 1、unless引导的条件句,表示强烈的否定。翻译为“除非…”。“非……不可。” 你不努力就会失败的。 我不叫你就别来。 You will fail unless you work harder. Don’t come unless I call you. unless Nothing is impossible as long as you try and stick to it. 2. as/so long as 只要…就…,表示一种前提条件 as/so long as As long as there is life there is hope. 留得生命在,不怕没希望. 1.条件状语从句的定义 2.条件状语从句注意问题 3.其他的引导条件状语从句的引导词 “主将从现” “主祈从现” “主情从现” unless,as/so long as Summary 1 原因状语从句 Presentation 一、基本概念 原因状语从句是英语中用于说明主句动作或状态发生原因的从句,修饰主句中的谓语动词,解释“为什么”会发生某事。 原因状语从句可放在主句前,也可放在主句后。 二、引导原因状语从句的连词及用法 1 常用引导词because 表示直接、强烈的因果关系,通常用于回答“why” 引导的疑问句。 — Why didn’t you finish the work? 你为什么没完成工作? — Because I ran out of time. 因为我没时间了。 since,表示已知的、显然的原因,意为“既然”, 引导的从句通常置于句首。 Since everyone is here, let’s start the discussion. 既然大家都到了,我们开始讨论吧。 Since you have known the truth, I don’t need to hide it. 既然你已经知道真相,我就不用隐瞒了。 2 I love practicing English because it is like a fun game. 我爱练习英语,因为它就像场好玩的游戏。 Let's move to the next challenge since everyone already knows the answer. 既然大家都知道答案了,我们就移步到下一项挑战吧! 主句在前,从句在后(通常不加逗号) 原因状语从句的位置很灵活,有2种情况: 1 2 从句在前,主句在后(从句后面要加逗号) Because it is like a fun game, I love practicing English. Since everyone already knows the answer, let’s move to the next challenge. 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 Puppetry will develop fast.Young people get interested in this art and bring creativity. _ _ More young people got to know this art because Zhan Haojing gave puppet shows at school. Puppetry will develop fast if young people get interested in this art and bring creativity. 7 Read the notice and rewrite the underlined sentences with if and because. 1 _ _ 2 _ _ 3 _ _ 4 _ _ Because many arts are in danger today, we want to start a programme. Some arts will soon disappear if we don’t act now. If we don’t know the arts well, it is difficult to see how to help. We can work with the folk art museum first because it’s the best place for us to learn. Read again and answer the questions. 1. Why does the Colourful Folk Arts Group want to start a programme? 2. What can they do after learning in the folk art museum? Because lots of Chinese local folk arts are in danger and may disappear soon. They can work as volunteer guides at the museum and cooperate with folk artists. Production Introduce your own story about taking responsibility. Use the words and expressions from the reading passage and the Useful expressions to help you. 8 When did it happen? Where did it happen? Who was there? What did you do? How did you feel? Cantonese Opera When did it happen? Where did it happen? Who was there? What did you do? How did you feel? at the cultural center/ theater/at school last month/ week my grandfather/ my best friend I watched the show, then told my best friend about it, showed her a short video, and we decided to learn a song together. Proud and responsible. (I felt proud because small actions matter.) Useful expressions It is my duty to … If I …, then … I believe … … encouraged me. Then and there, … It’s my duty to protect Cantonese Opera. If I do nothing, then.... I believe everyone can help. My teacher encouraged me to watch.... Then and there, I decided to tell my friend about it. It is my duty to … If I …, then … I believe … … encouraged me. Then and there, … My Little Responsibility for Yueju Last month, my grandma took me to a Cantonese opera show. At first, I didn’t understand it. But the costumes and singing were beautiful. After the show, I learned that few young people watch Yueju. Then and there, I decided to do something. I believe everyone can help, even in a small way. It is my duty to share our culture. So I told my best friend about the show and showed her a short video. If I do nothing, then this art may disappear. My friend encouraged me to learn one simple song together. I felt proud because I believe small actions matter. Responsibility starts with me. Homework Make five sentences with the grammar in today’s lesson. Preview the next lesson. $