Unit 5Power of Ideas第3课时（Section A 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“无线电的发明及其影响”展开，通过视频导入引发兴趣，结合小组讨论激活已有知识，借助图片预测搭建阅读支架，引导学生逐步理解发明者马可尼、发明过程及无线电对信息传播和后续发明的作用。 其亮点在于融合语言能力与思维品质，通过对话精读分析信息传播对比、角色扮演（含语音语调评价表）提升语言运用能力，思维导图任务促进分析推断。作业结合信息搜索与对话创作，培养学习能力，助力学生综合发展，也为教师提供结构化教学资源。

What do you think is the most useful invention of all time? Peter IT has to be . the radio. The radio. why? Before the radio was invented, information traveled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. right? Who was the inventor? An italian inventor called google mr. Con y. He developed the idea in the eighteen nineties. In nineteen o one, a radio message was sent across the atlantic ocean for the first time. Wow, that was quite a distance at that time. yeah. And because of the radio, some other important inventions were developed as well. like the television. 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. nullnullUnit 5 Power of Ideas 第3课时 (Section A 3a-3d) R·九年级上册 Lead in What great inventions can you see in the video? Among those inventions, what do you think is the most useful invention in history? Why? Warm up &discuss Activity 1. Discuss in pairs for 1-2 minutes. 2. Share your ideas with the class. Pre-reading 3a Do you know this machine? What is it? What do people use it for? Look at the picture and make a prediction. What do you think is the most useful invention of all time, Peter? It has to be the radio. The radio? Why? 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: Peter: Fu Xing: Peter: Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Wow! That was quite a distance at that time. Yeah. And because of the radio, some other important inventions were developed as well. Like the television? 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. Fu Xing: Peter: Fu Xing: Peter: Fu Xing: Peter: Read the conversation. What does Peter think is the most useful invention of all time? Skimming：快速 阅读对话，回答问题 The radio. While-reading 无线电 有史以来；自古以来 Today, we’re going to focus on one that changed how the world communicates forever: the radio. Scan again and answer the questions. 1. What was it like before the radio was invented? Information travelled very slowly. The world felt “big” and disconnected. What do you think is the most useful invention of all time, Peter? It has to be the radio. The radio? Why? 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: Peter: Fu Xing: Peter: 扫读对话，根据题干要求，定位文中，回答问题。 2. Why does Peter think the radio is the most useful invention of all time? 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. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Like the television? 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. Peter: Fu Xing: Peter: Reason 1 Reason 2 Reason 3 Further thinking: What other inventions were developed because of radio? 3. Who developed the radio? An Italian inventor called Guglielmo Marconil. Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Wow! That was quite a distance at that time. Fu Xing: Peter: Fu Xing: 古列尔莫・马可尼 Further thinking: What do you want to know about Guglielmo Marconil? 4. How did he invented the radio? In the 1890s, he developed the idea(of wireless telegraph system). In 1901, he sent a radio message across the Atlantic Ocean for the first time. Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Wow! That was quite a distance at that time. Fu Xing: Peter: Fu Xing: Further thinking: What do you think Guglielmo Marconil? Background(背景介绍) Basic Information Name: Guglielmo Marconi （古列尔莫・马可尼） Nationality: Italian（意大利） Lifespan: 25 April 1874 – 20 July 1937 Title: Inventor, electrical engineer, known as “the father of radio communication” （无线电通信之父） 核心成就（Key Achievements） Invented practical wireless telegraphy： In the 1890s, he developed the idea of using radio waves to send messages without wires. In 1901, he made history by sending the first radio message across the Atlantic Ocean, connecting Europe and North America. Won the Nobel Prize in Physics (1909) He shared the prize for his work on wireless telegraphy, which changed how people communicate forever. Paved the way for modern communication His work led to the development of radios, televisions, mobile phones, and even Wi-Fi. Read again and complete the chart. 3b Invention: _________ Who was the inventor? ____________________ When was it invented? ____________________ How did it change the world? the radio Guglielmo Marconi (Italian) In 1901. News could be spread around the world in seconds by radio. ___________________________ ___________________________ It also helped develop other important inventions like the television. ___________________________ It had a big effect on music, making it easier for people to enjoy music from artists around the world. What do you think is the most useful invention of all time, Peter? It has to be the radio. The radio? Why? 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. Read and analyze Fu Xing: Peter: Fu Xing: Peter: 转送，传播 =all over the world 全世界 What开门见山，引入话题: 询问Peter认为有史以来最有用的发明是什么？ Why观点解释：用对比的方式，说明无线电最核心的价值 ——改变信息传播速度 发明 Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Wow! That was quite a distance at that time. Yeah. And because of the radio, some other important inventions were developed as well. Like the television? 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. Fu Xing: Peter: Fu Xing: Peter: Fu Xing: Peter: 在19世纪90年代 Who话题深入:介绍发明者 Guglielmo Marconi以及他的成就关键时间点 have a(n)... effect on 对……产生……影响 因为；由于 make it+形容词+for sb to do sth 使某人做某事是……的 What拓展影响：无线电带来的其他重要影响 invent /ɪnˈvent〔及物动词〕 1. Before the radio was invented, information travelled very slowly. Language points (1) 发明 Can you tell me who invented the steam engine? 你能告诉我谁发明了蒸汽机吗？ (2) 编造 I wonder what excuse he invented this time. 我想知道他这次编了什么借口。 Listen to the conversation. Pay attention to how the key information is stressed. Then role-play the conversation. 3c What do you think is the most useful invention of all time, Peter? It has to be the radio. The radio? Why? 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: Peter: Fu Xing: Peter: Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Wow! That was quite a distance at that time. Yeah. And because of the radio, some other important inventions were developed as well. Like the television? 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. Fu Xing: Peter: Fu Xing: Peter: Fu Xing: Peter: Review and fill in the blanks. What do you think is the ___________ invention of __________, Peter? It has to be the radio. The radio? Why? Before the radio ___________, information ________ very slowly. The world __________ much smaller by the radio. Suddenly, news could _________around the world in seconds. Fu Xing: Peter: Fu Xing: Peter: Right. Who was the inventor? An Italian inventor called Guglielmo Marconil. He _________________ in the 1890s. In 1901, a radio message __________ across the Atlantic Ocean ________________. Wow! That was quite a distance at that time. Yeah. And ___________ the radio, some other important inventions ______________ as well. Like the television? That’s right. It also __________________music. The radio ___________________ for people to enjoy music from artists around the world. Fu Xing: Peter: Fu Xing: Peter: Fu Xing: Peter: most useful all time was invented was made be spread developed the idea was sent travelled for the first time because of were developed had a big effect on made it much easier After-reading 高频率使用被动语态 （the passive voice） Work in pairs. Practice reading the dialogue on 3a. Try to act it out. Evaluation Form 评价表 Items 评价项目 Scores 得分(0-3) 台词流利& 准确(Fluency &Accuracy) 语音语调与语速 （Pronunciation & pace） 角色互动与表现力 (Interaction & Performance) 情感与投入度 (Emotion &Engagement) Role-play Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. 3d Invention: _________ Who was the inventor? ____________________ When was it invented? ____________________ How did it change the world? ___________________________ Invention: _________ Who was the inventor? ____________________ When was it invented? ____________________ How did it change the world? ___________________________ the telephone Sample: Alexander Bell. In 1876. It made communication much faster and easier. The telephone was invented by Alexander Bell in 1876. The telephone changed the world a lot. It made communication much faster and easier. In the past, people had to send letters, which took a long time. But with the telephone, they could talk to each other at once, even if they were far away. The telephone brought people closer and made the world feel smaller. Listen and recite the text in 3a. Review the key language points of this lesson. Search online for information about the history of a useful invention and its effects. Then create a dialogue with your partner. Do some related exercises. Homework $