Unit5 Section B (3a-3d)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“想法的力量”主题，聚焦发明介绍类文本的阅读与写作，涵盖词汇（如glider构词法）、语法（被动语态、定语从句）等核心知识点。课堂导入通过莱特兄弟飞螺旋玩具的故事激发兴趣，衔接词汇学习与3a段落大意匹配、3b图表梳理发明五要素（What/Who/Why/How/Effect），构建从具体案例到结构化知识的学习支架。 其亮点在于融合文化意识、思维品质与语言能力培养，通过莱特兄弟、贝尔等发明家案例渗透创新精神，借助5要素阅读框架提升分析概括能力，设计3c分层写作任务强化语言输出。采用案例驱动与任务型教学，小结系统梳理短语、语法及阅读方法，助力学生构建知识体系，也为教师提供结构化资源，便于实施分层教学。

Unit 5 Power of Ideas Section B How do we turn ideas into reality? 第7课时 (3a-3d) 目录 词汇学习 Vocabulary 课堂导入 Lead in 新知学习 Knowledge 巩固习题 Exercise 课堂小结 Summary 课后作业 Homework VOCABULARY be looking to do sth 试图找到做某事的方法 2.glider /ˈɡlaɪdə(r)/ n. 滑翔机 词根：glide v. 滑翔；滑行 后缀：‑er 表物，做…… 的工具 / 器械 glide (滑翔) +‑er (器物) → glider 滑翔机 TRANSLATE： The inventor is looking to make a new glider. 中文翻译：这位发明者正试图制造一架新式滑翔机。 LEAD IN When they were young, the Wright brothers loved machines. They took apart old clocks. A toy flying‑spiral gave them the dream of flying. 飞螺旋玩具 Wilbur Wright /ˈwɪlbə raɪt/ 威尔伯・莱特（哥哥） Orville Wright /ˈɒːvɪl raɪt/ 奥维尔・莱特（弟弟） 3a Read the text and match the main idea of each paragraph.  Difficulties they met Impact of the invention Purpose of the invention 1 2 3 Their bicycle shop gave them money and mechanical skills. When riding bikes, they got the idea of wing warping for plane control. 翼尖翘曲 通过扭曲翼尖，让飞机能像自行车转弯一样倾斜着飞 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. 试图找到做某事的方法 Inspired by Lilienthal, they read many books about flight. They learned much knowledge for their flying experiments. Otto Lilienthal /ˈɒtəʊ ˈlɪliənθɑːl/ 奥托・李林塔尔，德国滑翔机先驱，被称为 “滑翔机之父”。 The Wright brothers learned a lot from Lilienthal. 1896 年，他在滑翔试飞中失事遇难，这件事深深影响了莱特兄弟。 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. /ˈɡlaɪdə(r)/ n. 滑翔机 /ˈendʒɪn/ n.发动机；引擎 The (invent) of the plane has made our travels around the world much (easy) and faster. Journeys that once took days, weeks, or even months, can now (make) in only a few hours. As a result, (communicate) among people in different countries is now much easier, and the world (become) a much smaller place. invention easier be made communication has become The plane. Orville Wright and Wilbur Wright (the Wright brothers). They wanted to fly like birds. Getting the glider into the air and controlling it during flight. They studied bird flight to solve flight problems, then fixed an engine to a glider. In December 1903. It shortens travel time greatly, makes international communication simpler and connects the whole world closer. Complete the chart. 3b Choose a great invention you are interested in. Do some research and make notes about it. ________________ 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 _________________________________________________. Alexander Bell 亚历山大・贝尔 /ˌælɪɡˈzɑːndə(r) bel/ Thomas Watson 托马斯・沃森 /ˈtɒməs ˈwɒtsn/（贝尔的助手） 3c Write about the invention you have chosen using the information from 3b. The Invention of the Telephone The invention of the telephone has greatly changed the world. However, it seems that its inventors, Alexander Bell and Thomas Watson, were not looking to change the world at all. Rather, Bell just wanted his deaf wife to be able to hear his voice. To solve the problem of sending sounds over wires, they began working with electrical tools. There were two main difficulties. The first was how to turn sound into electrical signals. The second was how to turn them back into sound. For both problems, they found their answers by studying how the human ear works. After they solved these problems, they built a working telephone.Then, in March 1876, the first successful telephone call was made. The invention of the telephone has made our communication over long distances much easier and faster. News that once took days, weeks, or even months to arrive, can now be sent in just a few seconds. As a result, people in different places can connect more easily, and the world has become a much smaller place. 电线 电器工具 距离 联系 EXERCISE 一、用方框内短语适当形式填空 as a result; solve the problem of; be looking to; make…easier; get…into the air Scientists ____________ find new ways to protect the environment. The new tool can ______________ our work _________________. He tried many ways to ________________________ heavy‑traffic. The bird spread its wings and ___________ itself ____________. He practised hard. _____________________, he passed the test. As a result are looking to make easier solve the problem of got into the air 二、句型转换 They added an engine to the glider.（改为被动语态） An engine _____________ _____________ to the glider by them. The plane makes our travels much easier.（对划线部分提问） _____________ _____________ the plane _____________? was added What does do SUMMARY 一、重点短语 be looking to do sth 试图做某事 solve the problem of… 解决…… 的难题 work with gliders 研究 / 使用滑翔机 get…into the air 使…… 升空 as a result 因此；结果 make journeys 完成旅行 communication among ……… 之间的交流 二、重点语法 & 句型 1.It seems that… 似乎……；看来…… It seems that they were not looking to change the world. 2.定语从句（that 引导，初二重点） Journeys that once took days can now be made in a few hours. that 指代事物，在从句中作主语，不可省略。 3.make + 宾语 + 形容词比较级 使…… 变得更…… make our travels much easier and faster much 用来修饰比较级，表示 “…… 得多” 4.被动语态（本单元核心） the world’s first plane flights were made 结构：be + 过去分词 三、阅读文体：发明介绍类文本 阅读思路 5 要素： What 发明物 Who 发明者 Why 发明初衷 How 发明过程 & 遇到的困难 Effect 发明带来的影响 HOMEWORK 基础层（全体学生必做） 1.背诵本页 5 个核心短语 + 3 个重点句型，每个短语抄写 2 遍，翻译 1 遍。 2.用 3‑5 句话复述课文莱特兄弟飞机发明故事（英文）。 提升层（中等学生） 仿照课本 3b 笔记框架，选择一项发明（paper-making /telephone）填写笔记。 拓展层（学有余力学生） 1. 在 3b 笔记基础上，完成一篇 80 词左右英语短文（对应课本 3c），介绍自己选的发明，包含：发明者、发明原因、遇到的困难、带来的影响。 2. 选做：搜集一个发明家的 1‑2 个小故事，准备 1 分钟课堂口头展示。 $