Unit 3 Our digital lives Section 4 Focusing on culture课件+嵌入音频 2025-2026学年沪教版（2024）八年级英语上册

Unit 3 Our digital lives 主题范畴：人与社会 主题群：科学与技术 子主题： 科学技术与工程，人类发明与创新 Key question How has digital technology changed our lives? learn about the history of computer technology development and the story of tech talent Alan Turing. recognize and understand the usage of key words, phrases and sentence patterns in the passage. learn the text features of popular science articles/expository essays, and predict the structure and content of the reading passage. Learning objectives 学习目标 At the end of the class, I will be able to: basis /ˈbeɪsɪs/ microprocessor /ˌmaɪkrəʊˈprəʊsesə(r)/ microchip /ˈmaɪkrəʊtʃɪp/ major /ˈmeɪdʒə(r)/ breakthrough /ˈbreɪkθruː/ electronic /ɪˌlekˈtrɒnɪk/ n. 基础 n. 微处理器 n. 微芯片；芯片 adj. 主要的；重要的 n. 突破；重大进展 adj. 电子的 New words and phrase software /ˈsɒftweə(r)/ app /æp/ era /ˈɪərə/ download /ˌdaʊnˈləʊd/ tiny /ˈtaɪni/ the general public n. 软件 n. （application的缩写） 应用程序；应用软件 n. 时代；纪元 v. 下载 adj. 微小的 公众；大众 It is the most useful tool in our life. We can calculate, type, and draw things with them. Computers can also do some important jobs. They can operate railways and fly planes and spaceships. Do you think computers are useful? Can you give some examples? Warming up Calculate. Play games. Type. Fly planes. Look&say What can we do with computers? How has digital technology changed the world? Computer technology develops quickly and has changed our world greatly. Let’s explore the history of computers. 计算机技术发展迅速，极大地改变了我们的世界。让我们来探索计算机的历史。 Pre-reading Read the text to find out how computers have developed over the years. The story of the computer 1837 In Britain, the first machine with a program was designed by Charles Babbage and his student Ada Lovelace. Charles wanted a machine to add up big numbers, but Ada realized that a computer program could do a lot more. She was the first computer programmer. A computer is any machine that can be programmed with a set of instructions. While-reading 1936 British scientist Alan Turing read Ada’s ideas and created the Turing machine, the basic design of a computer system. The Turing machine could do all kinds of calculations, and it could also run different programs. This is the basis for all modern computers. 1940s Scientists built early computers in England and Germany. They were the size of a room! 1971 Ted Hoff was the main inventor of the microprocessor, or “microchip”. This was a major breakthrough in the history of computers. Thanks to the microchip, computers and other electronic devices got faster and smaller very quickly. 1981 A US company designed the first PC (personal computer) for the general public. Experts didn’t believe that anybody wanted a computer at home. But in two years they sold thousands of them. 1990s—present Smartphones—phones with computer software—arrived! Today’s smartphones can connect to the internet and run all kinds of different apps—in other words, they are small computers. The arrival of smartphones has started a new era in digital technology. Expressions such as “Wi-Fi”, “download” and “app” have become part of our daily lives. The future Computer technology continues to develop. Some computers will be tiny—perhaps we will even have computers in our clothes. Scientists believe that quantum computers (量子计算机) will be the next big breakthrough. They will be many times faster than today’s computers, and much more powerful. 艾伦·图灵 (Alan Turing) 是一位英国数学家、逻辑学家，被誉为“计算机科学之父”和“人工智能之父”。他于1936年提出了“图灵机”的概念。 微芯片是一种高度集成的电子电路，是现代计算、通信、制造和交通系统的关键组成部分。 量子计算机是一种利用量子力学原理工作的计算机。它使用量子比特来存储信息。尽管量子计算机目前还处于发展阶段，但它们有潜力在未来解决许多我们现在难以解决的问题。 文化背景 Read the passage and answer the questions. 1. Who was first computer programmer? 2. What is the basis for all modern computers? 3. Were computers big or small in the 1940s? 4. Who designed the first PC for the general public? Ada Lovelace. They were big (as the size of a room). A US company. The Turing machine. Complete the table based on your own understanding. Answer Reason The future computers Problem we may face No. Human brains can produce new ideas but computers cannot. They may be tiny and quantum computers will be the next big breakthrough. How to adapt to the rapid development of computers and improve our life. Is the computer cleverer than human? Do you agree that computers will be able to do all our jobs in the future? Give reasons. Group A - pros Group B - cons Yes, I do. Lots of people are already lost their jobs because of computer-controlled machines … No, I don’t. … Notes (1) What did Charles Babbage and Ada Lovelace do in 1837? (2) Who was Alan Turing and what did he do? Answer the questions below with the information from the text on page 46. They designed the first machine with a program. Alan Turing was a British scientist. He created the Turing machine, the basic design of a computer system. (3) Who was Ted Hoff? What happened after his invention? Ted Hoff was the main inventor of the microprocessor, or “microchip”. After his invention, computers and other electronic devices got faster and smaller. (4) What will be the next big breakthrough in computer technology? Scientists believe quantum computers will be the next big breakthrough in computer technology. Find the words and the phrase in the text and match them with their meanings. (1) major (2) the general public (3) era (4) software (5) download a programs on a computer, phone, etc. b a particular period in history c people in society d to get data, files, software, etc. from the internet e greater or more important How have smartphones changed our daily lives? How will they continue to change our daily lives? Share your ideas with the class. Post-reading Who invented the World Wide Web? How has it changed the world? Go online and learn more about the digital revolution. Exploring more Watch a video The digital revolution (数字革命) and answer two questions. (1) What bad things about the internet does the speaker mention? (2) Why does the speaker say that Tim Berners-Lee gave the world “a wonderful present”? The digital revolution The world today is very different because of the web. Now there are three billion people online. The internet gives us information, friends, and a lot more. Life is easier. We can go online nearly everywhere—at home, outside and in cafés. But some people think there are bad things about the web. Is it a good thing for these companies to be so big and powerful? Can we stop people becoming addicted to computer games? There are some big problems. But Tim Berners-Lee’s idea — to connect people who are not rich or powerful—is still true. Kudjo is a successful farmer in Ghana and for him the internet is very important. At first, he didn’t know how to use the web. Then a friend gave him some practical lessons. Now he browses for information. The internet helps him to grow his crops and to sell them. He checks out the prices of different products. Then he can sell his products at the correct price. He can compete with the big farmers now and he can earn more money. Kudjo feels connected to the world, not alone. This is what Tim Berners-Lee wanted when he invented the web. He created something amazing and it’s still changing today. But he never earned money from it. He gave it away to the world for free because he wanted everyone to benefit from it. These young people in Africa today are doing exactly that. What a wonderful present! 视频文本 (1) What bad things about the internet does the speaker mention? (2) Why does the speaker say that Tim Berners-Lee gave the world “a wonderful present”? Some internet companies become so big and powerful. People become addicted to computer games. Because Tim Berners-Lee invented the web and gave it to the world for free. A lot of people benefit from it. 1837 In Britain, the first machine with a program was designed by Charles Babbage and his student Ada Lovelace. Charles wanted a machine to add up big numbers, but Ada realized that a computer program could do a lot more. She was the first computer programmer. A computer is any machine that can be programmed with a set of instructions. 一套；一组 加起来 Useful expression 1936 British scientist Alan Turing read Ada’s ideas and created the Turing machine, the basic design of a computer system. The Turing machine could do all kinds of calculations, and it could also run different programs. This is the basis for all modern computers. 1940s Scientists built early computers in England and Germany. They were the size of a room! 各种各样的…… ……的尺寸 1971 Ted Hoff was the main inventor of the microprocessor, or “microchip”. This was a major breakthrough in the history of computers. Thanks to the microchip, computers and other electronic devices got faster and smaller very quickly. 1981 A US company designed the first PC (personal computer) for the general public. Experts didn’t believe that anybody wanted a computer at home. But in two years they sold thousands of them. 多亏了……;由于…… = because of ... 数以千计的…… 1990s—present Smartphones—phones with computer software — arrived! Today’s smart phone can connect to the internet and run all kinds of different apps—in other words, they are small computers. The arrival of smartphones has started a new era in digital technology. Expressions such as “Wi-Fi”, “download” and “app” have become part of our daily lives. The future Computer technology continues to develop. Some computers will be tiny—perhaps we will even have computers in our clothes. Scientists believe that quantum computers (量子计算机) will be the next big breakthrough. They will be many times faster than today’s computers, and much more powerful. 换句话说 继续做某事 Thanks to the microchip, computers and other electronic devices got faster and smaller very quickly. electronic /ɪˌlekˈtrɒnɪk/ adj. 电子的 词性转换 electricity n. 电 save electricity 节约用电 electric adj. 用电的 electric light 电灯 electrical adj. 电的；与电有关的 electrical engineer 电子工程师 Language points 辨析 单词 核心含义 典型用法场景 例子 electric 直接由电驱动，物理电能 电动机、电灯、电流现象 electric car ‌electrical 与电相关，更侧重技术、系统或理论层面而非直接的电能 电路、电气工程、电力系统 electrical engineering electronic 电子技术或数字设备，尤其是基于电子元件（如集成电路）的 电脑、手机、电子元件 electronic piano 选词填空。 electric electrical electronic He prefers ________ books over paper ones. ________ bikes are becoming popular in cities. ________ communication is faster than mail. The ________ system in the house needs an upgrade. She received an ________ shock from the faulty socket. Electric electronic Electronic electrical electric 短语记一记 一套；一组 加起来 各种各样的 ……的尺寸 由于…… 数以千计的…… 换句话说 继续做某事 a set of add up all sorts of the size of thanks to（= because of） thousands of In other words continue to do sth. 基础作业： Finish the exercises. Preview Cross-curricular connection on P48. 拓展作业： 上网搜索更多有关数字革命的文章或视频，进一步思考计算机技术的发展历程和未来趋势，制作成简单的立体画并在全班分享。 $$