Unit 5 Power of Ideas（第5课时）Section B 3a-3c课件 2026-2027学年人教版九年级英语上册

该初中英语课件围绕“介绍发明的写作”核心知识点，以“Let’s discuss!”环节导入，引导学生思考伟大发明及其影响，激活已有认知。通过Pre-writing的3a文本分析，分段提取飞机发明的关键信息（发明者、原因、挑战等），搭建写作框架，3b提供模板引导学生自主研究并记录发明信息，形成从输入到输出的学习支架。 其亮点在于融合语言能力与思维品质培养，通过阅读分析（3a）和结构化写作（3b、While-writing）提升学生语言理解与表达能力，分段提取信息的过程锻炼分析归纳思维。采用“输入-内化-输出”教学方法，结合手机发明征文活动联系生活实际，帮助学生掌握写作策略，提升学习能力。对学生而言，能系统学习发明类文章写作；对教师而言，提供完整教学流程和实用资源，便于高效教学。

课时5(3a-3c) Unit 5 Power of Ideas Section B How do we turn ideas into reality? 九年级上册人教 1. 掌握并正确运用词汇:be looking to do sth., glider 2. 能写一篇介绍发明的文章 Learning goals Let’s discuss! What great inventions can you think of? How have these inventions changed the world? Warming up Read the text and complete the chart. 3a The invention of the plane has greatly changed the world. However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. Rather, they just wanted to fly like birds. 似乎…… Pre-writing 3a To solve the problem of heavier-than-air flight, the Wright brothers began working with gliders. There were two main challenges. The first was how to get the glider into the air. The second was how to control it once it was flying. For both problems, they found their solutions by looking at how birds flew. After they solved these problems, they added an engine to the glider. Then, in December 1903, the world’s first plane flights were made. Read the text and complete the chart. Pre-writing Read the text and complete the chart. 3a The invention of the plane has made our travels around the world much easier and faster. Journeys that once took days, weeks, or even months, can now be made in only a few hours. As a result, communication among people in different countries is now much easier, and the world has become a much smaller place. Pre-writing 3a Read the text and complete the chart. Paragraph 1 The plane was invented. Orville Wright and Wilbur Wright (the Wright brothers). Because the Wright brothers just wanted to fly like birds. What was invented? Who were the inventors? Why was it invented? Pre-writing 3a Read the text and complete the chart. Paragraph 2 How to get the glider into the air and how to control it once it was flying. The Wright brothers looked at how birds flew and added an engine to the glider. In December 1903. What challenges were met? How was it invented? When was it invented? Pre-writing 3a Read the text and complete the chart. Paragraph 3 It made travels much easier and faster, and the world became much smaller. What was its effect? Pre-writing However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. (教材P49 3a) be looking to do sth. 试图找到做某事的方法 We are looking to protect the environment by reducing plastic waste. 我们正致力于通过减少塑料废弃物来保护环境。 He is looking to collect old books for children in mountain areas. 他正试图找到为山区的孩子收集旧书的方法。 be动词随主语的人称和数的变化而变化。 Language points 10 Choose a great invention you are interested in. Do some research and make notes about it. 3b _ was invented by _ in _. It was invented because _. It was made of/from _. The inventor had difficulties in _. . The invention was responsible for/led to _ _. The telephone Alexander Graham Bell 1876 people wanted to communicate quickly over long distances metal, wires and plastic sending clear sounds and improving the signal faster communication and connecting people around the world Pre-writing Write about the invention you have chosen using the information from 3b. 3c There are many great inventions that have changed the world, and the telephone is one of them. It was invented by Alexander Graham Bell in 1876. People needed a quick way to communicate over long distances. Before the telephone, slow letters were the main way to keep in touch. Bell faced many difficulties in sending clear sounds and improving signals, but he kept trying and never gave up. Finally, he succeeded. His invention resulted in faster communication and connected people all over the world. Thanks to the telephone, the world has become much closer and our lives are more convenient. While-writing 随着手机的发明和应用,我们的联系方式甚至生活方式都发生了巨大改变。本周你校英语社团正在举办以“科技改变生活”为主题的征文活动,请你根据下面的提示和要求,用英语写一篇文章进行投稿,简单介绍手机发明的基本信息和主要用途,同时阐述作为青少年的你们对使用手机的一些看法。 The basic information Inventor: Martin Cooper (from America) Time: in 1973 Usages(用途) In the past: 1. made calls; ... Now: 1. go shopping online; 2. have online classes; ... Your opinions ... (至少两点) Exercises 要求: 1. 短文必须包括表格中所有要点,可适当发挥; 2. 不得出现真实姓名、校名和地名; 3. 词数不少于80。 _ _ Exercises Expression Writing glider write about a great invention Key word be looking to do sth. Summary 15 1. 写一篇文章,介绍一项伟大的发明,以及这项发明为世界带来了哪些改变。 2. 将本课所学内容形成重点笔记。 Homework 16 null 82886.805 $The invention of the plane has greatly changed the world. However, IT seems that its inventors, or will right and wilbert, we're not looking to change the world at all. Rather, they just wanted to fly like birds to solve the problem of heavier than their flight. The right brothers began working with colliers. There were two main chAllenges. The first was how to get the glider into the air. The second was how to control IT. Once I was flying for both problems, they found their solutions by looking at how birds flu. After they solve these problems, they added an engine to the glider. Then in december nineteen o three, the world's first plain flights were made. The invention of the plane has made our travels around the world much easier and faster. Journeys that once took days, weeks or even months can now be made in only a few hours as a result, and communication among people in different countries is now much easier, and the world has become a much smaller place.