Unit5 Power of Ideas (Period 5)2a-Reflecting课件2026-2027学年人教版九年级上册英语

该初中英语课件围绕“发明”主题，涵盖核心词汇（如invent, production）、一般过去时被动语态及说明文阅读技巧。课堂通过快速问答（蔡伦造纸）和短语小测导入，结合Pre-reading词汇变形练习，搭建旧知（词形转换）与新知（发明词汇）的学习支架，帮助学生衔接知识。 其亮点在于以任务驱动整合语言能力与思维品质，通过阅读莱特兄弟发明飞机、便利贴诞生等真实案例，引导学生分析发明要素并运用被动语态。小组合作设计创意发明（如环保或健康领域）并制作海报，融入跨文化意识（中外发明对比），既提升学生语言表达与创新思维，又为教师提供结构化教学资源，助力高效课堂实施。

Power of Ideas (Period 5) Section B (2a-Reflecting) 人教版九年级上册英语 01 快速问答 Quick Q&A Q1: Who improved the papermaking process and made it practical for widespread use in ancient China? Q2: What common and low-cost materials did Cai Lun experiment with to create a more efficient type of paper? Q3: Why is the invention of paper considered one of the greatest contributions to human civilization and the spread of knowledge? 02 短语小测 Phrase Translation 1. 导致 Lead to / Result in 2. 加速 Speed up / Accelerate 3. 由…制成 Be made of / from 4. 对…负责 Be responsible for 5. 适合 Be suitable for / Fit for 🎯 课堂任务：Turn to your partner. Ask and answer the questions above, then make a sentence for each phrase. Learning Objectives “开启智慧之光，探索发明奥秘” 01 词汇积累与运用 熟练掌握本课时核心词汇的发音、拼写及词形转换规则；能够结合具体语境，准确、灵活地运用这些词汇进行造句和表达，夯实语言基础。 02 说明文阅读技巧突破 深入研读两篇关于发明创造的经典短文，梳理文章脉络与逻辑结构；学会快速抓取关键信息，提炼说明文的写作特点与阅读解题技巧。 03 创意表达与设计实践 能够自信地用英语口头介绍一项自己熟悉的发明；发挥想象力与创造力，构思并完成一项具有实用性的创意发明设计方案，展示创新思维。 3 01. rapidly/ˈræpɪdli/ adv. 迅速地；快速地 (Moving or happening very quickly) 02. afford/əˈfɔːd/ v. 买得起；能做；承担得起 (To have enough money to buy or pay for something) 03. company/ˈkʌmpəni/ n. 公司；陪伴 (A business organization; being with another person) 04. sticky/ˈstɪki/ adj. 粘（性）的；闷热的 (Tending to stick to surfaces; hot and damp) 05. songbook/ˈsɒŋbʊk/ n. 歌曲集；歌本 (A book containing a collection of songs) 06. production/prəˈdʌkʃn/ n. 生产；制作；产量 (The process of making or growing something) 07. gradually/ˈɡrædʒuəli/ adv. 逐渐地；逐步地 (Slowly over a period of time) 08. widely/ˈwaɪdli/ adv. 广泛地；普遍地 (In many different places or by many people) 1.7.2013 ‹#› 1. be looking to do sth /biː ˈlʊkɪŋ tuː duː ˈsʌmθɪŋ/ 试图找到做某事的方法；寻求做某事的途径 2. glider /ˈɡlaɪdə(r)/ n. 滑翔机；无引擎的飞机；滑行者 3. Oakland /ˈəʊklənd/ n. 奥克兰（美国加利福尼亚州西部重要港市） 4. Spencer Silver /ˈspensə(r) ˈsɪlvə(r)/ 斯潘塞·西尔弗（3M化学家，低粘性胶水的发明者） 5. Arthur Fry /ˈɑːθə(r) fraɪ/ 亚瑟·弗赖伊（3M工程师，受书签启发，利用西尔弗的胶水发明了“便利贴”，彻底改变了办公方式） 6. Orville Wright /ˈɔːvɪl ˈraɪt/ 奥维尔·赖特（莱特兄弟中的弟弟，美国著名发明家。1903年，他驾驶“飞行者一号”完成了人类历史上第一次重于空气的航空器的受控持续动力飞行） 7. Wilbur Wright /ˈwɪlbə(r) ˈraɪt/ 威尔伯·赖特（莱特兄弟中的哥哥，航空先驱。他与弟弟共同设计并制造了世界上第一架实用的固定翼飞机，被誉为“航空之父”） 1.7.2013 ‹#› The Internet is ___________ used around the world. Revision Quiz widely 一、选词填空 从方框中选择单词的适当形式填空 rapidly afford widely production gradually result in 1 2 Hard work can ___________ success. 3 He can't ___________ to buy a new house. 4 The ___________ of this factory is very large. 5 The situation ___________ improved. 6 The news spread ___________ through the city. 二、英汉匹配 左侧英文与右侧中文意思对应 rapidly 迅速地;飞快地 afford 负担得起;买得起 widely 广泛地;普遍地 production 生产;产量 gradually 逐渐地;逐步地 result in 导致;结果是 result in afford production gradually rapidly 1.7.2013 ‹#› Word Morphology 词性演变 🌱 Nature (n. 自然) →Natural(adj. 自然的) → Naturally (adv.) 🏃 Act (v. 行动) →Action(n. 行动) → Active (adj. 积极的) 🍎 Health (n. 健康) →Healthy(adj. 健康的) → Healthily (adv.) 🎨 Create (v. 创造) →Creation(n. 创造) → Creative (adj.) 🌐 Wide (adj. 宽的) →Widely(adv. 广泛地) → Width (n. 宽度) 7 Vocabulary in Use Complete the table with different forms of the words. You can add more. 2a 8 Noun 名词 Verb 动词 Adjective 形容词 collection collect collective invention invent inventive creativity/creation create creative product produce productive Check the answers. 2a 1. The use of modern medicine has helped control / spread many dangerous diseases. 2. News could travel much more rapidly / slowly with inventions like the radio and the television. 3. Fibre made from oil provides a(n) cheap / expensive solution to the problem that many people cannot afford to buy enough clothes. 4. A film was invented / produced by a film company to tell us about what robots could do for people’s lives in the future. 5. In January 1911, Feng Ru carried out a secret / public test flight in Oakland City. He showed the world what Chinese people could achieve. Choose the correct word to complete each sentence. 2b ✓ ✓ ✓ ✓ ✓ 10 Complete the passage with the correct forms of the phrases in the box. Then discuss how an invention like sticky notes is turned into reality. 2c 11 Vocabulary in Use Did you know that an accident led to the invention of sticky notes? In 1968, a scientist named Spencer Silver was trying to make a strong glue. _________________, he produced a glue that was really weak. It could stick things, but it could be removed very easily. The glue was interesting, but no one could find a use for it. To his surprise 12 Vocabulary in Use Then, in 1974, a man named Arthur Fry was trying to mark the pages in a songbook using small __________________ paper. However, whenever he __________________ to sing, the pieces fell to the floor. Then he remembered Silver’s glue. With the glue, the paper stayed in the songbook, but it could later be removed. Fry’s idea __________________ the production of sticky notes of many sizes and colours. They gradually became popular and now are widely used all over the world. piece of stood up resulted in 13 Sticky Notes Magic 那些随处可见的彩色便利贴，不仅是备忘录的载体，更是捕捉灵感、整理思绪的神器。你是否也习惯用它来记录待办或创意？ Inventions & Accidents 从飞机的升空到便利贴的诞生，许多改变世界的发明并非刻意为之，而是源于一次意外的尝试或“失败”的实验。今天我们就来探索这些有趣的故事。 01. Your Daily Helper Do you often use sticky notes in your life? Where do you stick them and what do you write on them? (e.g., on your desk, laptop, or fridge?) 02. The Mysterious Inventor Do you know who invented the sticky notes? Was it a carefully planned scientific project, or just a happy accident in a lab? 03. More Happy Accidents Besides sticky notes, what other accidental inventions do you know? Think about things we use every day that were invented by mistake. Think and talk 3a Read the text and complete the chart. 3a 15 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. 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. Para 1 Para 2 The Wright Brothers (1903) Orville and Wilbur Wright were American aviation pioneers. They achieved the first successful flight of a controlled, powered airplane in Kitty Hawk, North Carolina. Their achievement turned the dream of human flight into reality. Main Idea This paragraph introduces the significance of the plane's invention and mentions the early inventors who pursued the dream of flight, setting the stage for the story of the Wright brothers. 🛩️ Mastering Control with Gliders The brothers used gliders (winged aircraft without engines) to study how to balance and steer a plane in the wind. This was the foundation for solving the biggest challenge of flight. 🚀 The 1903 Breakthrough By adding a lightweight gasoline engine to their design, they achieved the first sustained, controlled flight of a powered, heavier-than-air aircraft in Kitty Hawk, North Carolina. Language Points 01. It seems that... 【释义】似乎……；好像……（表推测） 📌 结构：It seems that + 主语 + 谓语（陈述语气，表不确定的判断） 1. It seems that she is upset about something. （她似乎因为某事而心烦。） 2. It seems that the party will be canceled. （这个派对好像要被取消了。） 02. not...at all 【释义】根本不；一点也不（加强否定语气） 📌 结构：否定句式 (don't/doesn't/can't...) + at all（置于句末或句中） 1. I don't mind your decision at all. （我一点也不介意你的决定。） 2. She isn't interested in this book at all. （她对这本书根本不感兴趣。） 03. rather (than) 【释义】相反；而是；宁愿（表取舍或偏好） 📌 结构：A rather than B / would do A rather than do B 1. It is a flower rather than a grass. （这是一朵花，而不是一棵草。） 2. I would walk rather than take a taxi. （我宁愿走路也不愿坐出租车。） 18 Language Points 01. work with 【核心释义】从事；研究；与……共事 📌 结构：后接名词/代词作宾语，强调合作对象或研究领域。常用于描述职业活动或协作关系。 She works with a team of scientists to study marine biology. (她与一个科学家团队共事，研究海洋生物学。) 02. the way to do sth. 【核心释义】做某事的方式/途径/方法 📌 结构：动词不定式 to do sth. 作后置定语，修饰名词 the way。等同于 "the way of doing sth."，是写作中常用的高分句型。 Confidence is the best way to overcome your fear of speaking. (自信是克服你说话恐惧的最好方法。) 03. find solutions to... 【核心释义】找到……的解决办法/方案 📌 搭配：Solution 是可数名词，必须与介词 to 搭配（不能用 of），后接具体的问题或难题，是考试和写作的高频考点。 We must find practical solutions to the global energy crisis. (我们必须找到解决全球能源危机的切实可行的方案。) 19 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. Read the text and complete the chart. 3a 阅读分解：Para 3 💡 Main Idea The plane's invention revolutionized global travel and connectivity. It transformed the world into a more accessible "global village", making long-distance travel and international communication fast and convenient. ✍️ Class Task:Describe one way the plane has changed your life or the world using the key phrases above. Language Points 01. make sth. + adj. 结构解析：make 作使役动词，后接“宾语 + 形容词”构成复合宾语，强调使某物达到某种状态或结果。 📝 Example: The soft music made us feel relaxed after a long day.（轻柔的音乐让我们在漫长的一天后感到放松。） 02. as a result 用法：连接性短语，用于引出上文动作或情况所产生的直接结果，常置于句首并用逗号隔开。 📝 Example: He studied hard for the exam. As a result, he got the first place.（他为考试努力学习，结果得了第一名。） 03. much + 比较级 核心考点：much 作为程度副词，修饰形容词或副词的比较级，强调程度上的“……得多”，不可用 very 替换。 📝 Example: This movie is much more exciting than the one we saw last week.（这部电影比我们上周看的那部精彩得多。） 22 Grammar Focus ✨ 核心公式：一般过去时被动语态 = was / were + 过去分词 (V-ed) （如: invented, made, created） 01 肯定句 Affirmative 结构：Sth. + was/were + invented by... Paper was invented by Cai Lun in ancient China. 译：纸是由蔡伦在古代中国发明的。 02 疑问句 Interrogative 结构：Was/Were + sth. + invented by...? Were mobile phones invented in the 1970s? 译：手机是在20世纪70年代被发明的吗？ 03 否定句 Negative 结构：Sth. + wasn't/weren't + invented by... The light bulb wasn't invented by Einstein. 译：灯泡并不是由爱因斯坦发明的。 💡 语法点睛：为何发明类话题偏爱被动语态？ 在讨论发明创造时，我们通常更关注“发明物本身”（动作的承受者）而非“发明者”（动作的执行者）。使用被动语态能自然地将句子焦点转移到物品上，符合英语表达的逻辑重心，同时也能避免在不知道或无需强调发明者时的表达尴尬。 Complete the table. 3a ①The plane. ②The Wright brothers. ③To fly like birds. ④How to get the glider into the air; how to control it once it was flying. ⑤The Wright brothers watched how birds flew and added an engine to the glider. ⑥In December 1903. ⑦ It made travels around the world much easier and faster. It made communication among people in different countries much easier and turned the world into a much smaller place. 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 ______________________________________. Group Discussion 3b Group Formation: Form teams of 4 students. Collaborate closely to share ideas. Time Limit: You have 5 minutes for the discussion. Stay focused! 01. The Game-Changer What invention do you think is the most important in history? Explain your reasons and discuss how it has fundamentally changed the way people live and work. 02. Your Dream Creation If you could invent one thing to solve a problem in the world, what would it be? Describe its unique functions, who it would help, and why it’s needed today. 03. The Inventor’s DNA What personal qualities make a great inventor? List at least three key traits (e.g., curiosity, resilience) and discuss why they are crucial for innovation. Write about the invention you have chosen using the information from 3b. 3c 本单元的话题是 “发明”，针对这一话题，作文设题通常要求介绍一项发明，常涉及发明者、发明时间、发明理由、制作材料、发明过程、用途，以及发明的影响等。此类作文体裁为说明文，多以第三人称叙述，时态多用一般过去时和一般现在时。行文过程中，应注意时态准确性、信息完整性、逻辑连贯性。 导图 写作素材 (1)... was invented by ... in … …… 由…… 于…… 发明。 (2)... was made of/from … …… 由…… 制成。 (3) In the first step ... Then ... Next ... Finally ... 在第一步…… 然后…… 接下来…… 最后…… (4) The world was made much smaller by … …… 让世界变得更小了。 (5) It also had a big effect on … 它也对…… 产生了重大影响。 (6)... made it much easier for people to … …… 让人们更容易…… (7)... led to/resulted in … …… 导致了…… (8) As a result, … among people in different countries is now much easier. 因此，不同国家人们之间的…… 现在变得容易多了。 参考范文 Come up with your own invention Read the school notice. 4a Choose one area you want to make improvements in. Work in groups. Discuss what inventions could help in your chosen area. 4b 01 / Innovation Focus Areas 创新领域方向 Green Technology 聚焦环保材料与新能源应用，致力于减少碳足迹，探索可持续发展的创新方案。 Health & Wellness 设计便携医疗辅助工具，关注日常健康监测与心理健康，守护全人群的身心状态。 Smart Farming 利用科技赋能传统农业，优化种植效率，解决灌溉、监测与增产的实际难题。 Disaster Relief 研发高效的应急救援装备与灾害预警装置，为突发状况下的生命安全提供保障。 Education Innovation 创造互动式教学教具与趣味学习工具，打破传统边界，激发青少年的探索欲。 Elderly Care 打造适老化智能产品，解决独居与生活照料难题，提升老年人的生活质量。 Work in groups. Discuss what inventions could help in your chosen area. 4b 02 / Project Core Requirements 项目核心要求 Inexpensive & Low-cost 采用日常易得的材料制作，严格控制成本，确保方案具备极高的性价比与推广潜力。 Easy to Operate 设计极简的操作流程，无需复杂的专业技能，兼顾不同年龄层的使用习惯与便捷性。 Socially Beneficial 切实解决生活痛点，不仅服务个人，更能为社区和社会带来积极影响，传递价值。 Make a wall of inspiration Make a poster about your invention. The poster should include: 4c Group Task: 4 Students per Group Assign roles: Designer, Speaker, Writer, & Artist. Time Limit: 10 Minutes Total 8mins for designing; 2mins for 2 groups to present. 01. The Name Brainstorm a creative, catchy name that reflects your invention’s unique purpose and personality. 02. Materials List the key materials, technology parts, or natural resources needed to build your invention. 03. Function & Use Explain what your invention actually does in daily life. What problem does it solve? 04. Life Impact How does it improve people’s lives? Does it save time, protect the environment, make us healthier, or bring more joy and connection? 05. Quick Sketch Draw a simple picture to visualize it! Include key features or labels. No need for perfect art—just capture the idea! Design Your Invention Present your poster in the exhibition. Vote for your favourite ones. 4d 展示要求 01 每组2分钟介绍 在规定时间内完成海报介绍,把握好节奏。 02 讲清发明核心信息 需包含发明名称、用途、材料、影响四大要素。 03 回答同学提问 耐心解答现场观众对作品的疑问。 投票规则 最佳创意奖 颁给最具想象力、构思新颖独特的发明。 最实用奖 颁给能解决实际问题、应用价值高的发明。 最佳展示奖 颁给讲解清晰、互动良好、展示效果最佳的小组。 01 核心词汇 Vocabulary 掌握“invent, create, discover”等发明主题核心词，熟练运用词形转换技巧，理解名词、动词与形容词的词性演变规律，为精准表达奠定基础。 02 阅读感悟 Reading 精读《便利贴的意外诞生》与《莱特兄弟的飞天梦》两篇经典故事，不仅读懂了发明背后的灵感来源，更体会到创新往往源于对生活的细心观察与坚持不懈。 03 语法聚焦 Grammar 重点攻克“一般过去时的被动语态”（was/were + done），掌握其在描述历史发明事件、客观事实陈述中的应用场景，能够准确区分主动与被动的语境差异。 04 综合表达 Writing & Speaking 能够自信地向他人介绍一项伟大发明的背景与功能；并发挥想象力，在小组内讨论并设计出属于自己的“创意发明”，用英语清晰阐述设计理念。 01. 词汇积累 熟读并背诵本课时的核心单词与重点短语，重点掌握其在具体语境中的搭配与用法，夯实语言基础。 02. 创意短文 撰写一篇80词左右的英文短文，介绍一项你最喜欢的发明，并简述它如何改变了人们的生活方式。 03. 小组方案 小组协作完善你们的发明设计草图，补充功能细节与创新亮点，为下节课的课堂展示做好充分准备。 Creativity is thinking up new things. Innovation is doing new things. —— Keep exploring and keep inventing! Spark Your Idea! 每一个伟大的发明都始于一个小小的灵感。 $