Unit 5 Power of Ideas Section A 3a-3d 课件2026-2027学年人教版九年级英语上册

Section A 3a-3d Unit 5 Power of Ideas Where are we? Unit 5 Big Question： What do creative ideas bring about? How do inventions work and help us? How do we create our own? Lesson 1 对话 Talk about some useful inventions 谈论一些有用的发明 Creative ideas change lives, the world, and ourselves. Lesson 2 对话 Talk about the functions and working principles of 3D printers 讨论3D打印机的功能及工作原理 Lesson 3 对话 Talk about the most useful invention of all time 谈论有史以来最有用的发明 What makes an invention great? Lesson 4 短文 Talk about the story of the construction of the Qinghai-Xizang Railway 谈论青藏铁路的建设故事 Lesson 5 短文 Talk about how Cai Lun improved papermaking techniques 谈论蔡伦改良造纸术 Lesson 6 短文 Talk about how the Wright brothers invented the airplane 谈论莱特兄弟发明飞机 What makes an invention great? Lesson 3 对话 Talk about the most useful invention of all time 谈论有史以来最有用的发明 Where are we? 子任务1 通过本节课的学习，我能够提取Super See和Smart Cook的来源国家、功能和操作方法等信息，运用一般现在时被动语态（is/am/are + done）口头介绍一项发明的功能。 子任务6 通过本节课的学习，我能够阅读莱特兄弟发明飞机的故事，分析其篇章结构（动机→挑战→解决→影响），仿写一篇介绍一项发明的短文。 子任务2 通过本节课的学习，我能够听懂3D打印机的工作原理，提取其可制作的物品类型和制作步骤，运用顺序连接词（First, Then, After that, Finally）和被动语态描述完整的制作过程。 子任务3 通过本节课的学习，我能够阅读关于收音机发明的对话，提取关键信息（发明者、时间、影响），描述发明历史事件，并表达个人对“最有用的发明”的观点。 子任务4 区分并正确运用一般现在时和一般过去时被动语态，在“青藏铁路”及“发明介绍”语境中完成填空和段落写作。 子任务5 通过本节课的学习，我能够阅读造纸术的说明文，提取蔡伦改良造纸术的背景、材料、步骤与影响，运用过去时被动语态描述发明历程，完成代词指代和工序排序。 核心任务：以小组为单位，针对某个现实问题设想一个实用的发明，将制作思路和应用领域的说明制作成一份多媒体展示（PPT/海报/短视频）并用英文向全班介绍。 Learning Objectives In this lesson you will be able to: 1. 阅读关于收音机发明的对话，提取关键信息（发明者、时间、影响）。（学习理解） 2. 能描述发明的具体信息及细节，并用重音来吸引听众注意、强调重点。（应用实践） 3. 选择一项自己认为最有用的发明，用过去时被动语态介绍其发明者、时间和影响，参与投票讨论并表达观点。（迁移创新） Please share your choice with us! Wondermother Wonder mother Wondermother Wondermother Wondermother 学习理解 Part 1 洛阳市东明外国语实验学校 Oh, I found a card with an interesting invention. Let’s have a look! Wi-Fi valuable John O’Sullivan the 1990s connecting to the Internet Look and predict ① Who is he? A. He is an inventor B. He is a worker. We notice that there are other ways to exchange information before Wi-Fi. Do you know what they were? 9 9 Look and predict ② What is he doing? A. He is repairing an old machine. B. He is inventing a new machine. Look and predict ③ What can the machine be used to/ for? A. It can be used to send some information. B. It can be used for showing us a film. Peter and Fu Xing are talking about the man, too. Let’s listen and join them. Timeline Before the radio was invented the idea was developed the first message was sent across Atlantic today still used Listen and finish the timeline. 1890s 1901 ① Who is he? He is an Italian inventor called Guglielmo Marconi. Let’s re-answer these questions. ② What is he doing? He is inventing the radio. Let’s re-answer these questions. ③ What can the machine be used to/ for? It can be used to spread news around the world in seconds. Let’s re-answer these questions. Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That's right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. Timeline before radio… 1890s idea… 1901 first message… across Atlantic still used today Read the conversation and check the timeline. Read the conversation and check the timeline. Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That's right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. What does Peter think is the most useful invention? Does Fu Xing agree with him at first? What is the conversation mainly about? Do you agree with Peter that the radio is the most useful? Why or why not? It has to be the radio. / He thinks the radio is the most useful invention. / The radio. Yes, he does. The conversation is mainly about the radio. /It is mainly about the inventor, development and influence of the radio. 3b Read again and complete the chart Invention: _______ Who was the inventor? _________________ When was it invented? _______________________ _______________________ How did it change the world? _______________________ _______________________ _______________________ _______________________ Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That's right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. 3a Read the conversation 3b Read again and complete the chart the radio Guglielmo Marconi from Italy 1901 (first message across the Atlantic) some other important inventions were developed had a big effect on music made it much easier for people to enjoy music from artists around the world Invention: __________ Who was the inventor? _____________________________ When was it invented? _________________________________ __________________________________ How did it change the world? ________________________________ ________________________________ ________________________________ ________________________________ 应用实践 Part 2 洛阳市东明外国语实验学校 Listen and find the changes related to the invention of the radio. Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That's right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. ① Before the radio was invented, information travelled very slowly. ② The world was made much smaller by the radio. ③ News could be spread around the world in seconds. ④ Because of the radio, some other important inventions were developed as well. ⑤ It also had a big effect on music. Find the changes related to the invention of the radio. After the radio was invented, 3c Listen and role-play 1st listening. Listen and pay attention to the intonation. 2nd listening. Circle the words that are being stressed. Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That's right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. 3c Listen and role-play Practice and role-play the conversation. Pay attention to how the key information is stressed. ˈradio / ˈinvented / ˈvery slowly ˈmuch smaller / ˈspread / ˈseconds ˈGuglielmo Marconi / ˈ1890s / ˈ1901 / ˈAtlantic Ocean ˈtelevision / ˈbig effect / ˈmusic / ˈartists Tip: 句子中的实词（名词、动词、形容词、副词、代词等）通常需重读。 A: What do you think is the most useful invention? B: It has to be the ... A: Why? B: Before it was invented, .... It made .... A: Who was the inventor? B: ... called .... He developed the idea in .... And a radio message was sent across the ... for the first time in .... A: How did the radio influence the world? B: Because of the radio, some other ... like ... were ... as well. It also had ... on music. The radio made it ... for people to enjoy ... from ... around the world. Have a try: role-play the conversation and stress the key words. 迁移创新 Part 3 洛阳市东明外国语实验学校 Group Work Goal: Recommend the Most Useful Invention 语言能力 我能听懂对话中关于发明（收音机）的名称、原因、时间线及影响的细节信息 提取发明 基本信息 It has to be… An … inventor called… He developed the idea in… 理解发明 原因与影响 Before… was invented, … The world was made much… by… …could be spread around the world in… 捕捉关键 时间与事件 He developed the idea in… In…, … was sent across… for the first time. 推断关联与 延伸影响 Because of…, some other… were developed. It also had a big effect on… …made it much easier for people to… 核心素养 我能 学习能力 从收音机发明对话中准确找出关键信息——发明者、时间、影响。 在口语表达中用重音吸引听众注意、强调关键信息。 思维品质 梳理收音机发明的时间线（1890s 构思→1901 跨大西洋传信），分析发明从构想到实现的逻辑过程。 推断收音机发明与电视等后续发明之间的因果关联，评价科技发明对社会的推动作用。 文化意识 了解重要发明对人类社会进步和文化传播的深远影响，认识科技创新改变世界的价值，尊重发明家的探索精神。 个人成长 多角度观察、发现问题，提升解决实际问题的能力 Homework 基础作业： 根据课本3b信息图表和3d思维导图，将内容整理在作业本上，用过去时被动语态写出五个关于收音机发明的句子（涵盖发明者、时间、影响等） 提升作业： 将课上小组讨论的结果形成文字记录下来。用至少3句过去时被动语态写一段介绍（50词左右） 拓展作业： 用AI搜索工具（如Perplexity、Microsoft Copilot）查找一项中国古代发明（如印刷术、火药、指南针或造纸术）的历史背景和传播路线，制作一张“发明信息卡”（含发明者、时间、背景、影响等），用英文撰写，至少使用5句被动语态。 U5 Section A 3a Dialogue v9 Fu Xing & Peter null 62117.94 He developed the idea in the 1890s Peter null 3343.678 In 1901, a radio message was sent across the Atlantic Ocean for the first time Peter null 6008.1787 $