Unit 5 Section A 3a-3d【精品课】2026-2027学年九年级英语上册同步精品课件（新教材人教版）

Unit 5 Power of Ideas What changes can inventions bring to our lives? Section A 3a-3d Learning Objectives 通过本课时的学习，学生能够： 在「发明创造」主题情境中，掌握 invention, invent, inventor, develop, spread, effect 等核心词汇与短语；理解并运用被动语态相关句型，交流伟大发明的相关信息，表达个人对发明创造的看法。(学习理解) 阅读对话文本，精准梳理收音机的发明者、发展时间以及带来的世界改变，训练阅读细节定位、信息筛选归纳的能力；借助 3b、3c 任务解读文本内涵，开展角色扮演复述对话逻辑，完成从文本输入到口语模仿输出的转化。 (学习理解，应用实践) 围绕 “最重要的发明” 展开双人分享活动，能结合已有知识讲述一项重要发明，完成语言知识迁移运用；感受发明对人类社会发展的巨大推动作用，激 发科学探究兴趣，建立创新意识。(迁移创新) 03 Let’s talk about some great modern inventions. Revision Super See is a new invention from Germany. It looks like a pair of _________. It is used for helping people who _____ ______ _____.It can make things look ________. Also, words can ______ ______ ____ sound. What's more, users can _________ the colour and size of the pictures. sunglasses can’t see well larger be turned into change Super See Let’s talk about some great modern inventions. Revision Smart Cook​ is a cooking machine. It has an app with many recipes. We can put food like carrots and onions in the cup on the top of the machine. Then press this button. All the food _______ _____ and _____. The oil and salt _____also_______ by the machine itself.It’s perfect for busy people or those who _____ _____ _____. Smart Cook is cut fried are added can’t cook well Let’s talk about some great modern inventions. Revision 3D Printer The 3D printer is a cool invention. First, an object _____ _____ on a computer. Then, a file _____ ______and sent​ to the printer. The file_____ ______by the machine, and the object ______ _________ layer by layer. Many things can______ _______ by it. In medicine, body parts like hearts can be created. Not only plastic but also other materials ____ ______. Some food can even_____ ______ ! It turns ideas into real things. is designed​ is created​ is read​ be made​ are used be printed produced is If there were an “Invention Hall of Fame”, which invention do you think should be in it? Why? Pre-listening Guess a riddle Receives news and music through the air. Allows information to travel far and fast. Does not show pictures, but you can hear its voice. It made the world feel much smaller. Open your ears—what invention am I? R A D I O Clap, clap, listen to the radio, News and music, here we go! Long ago, the world was wide, News travelled slowly, side to side. Invent, invent, a brand-new way, Ideas can change our lives each day! Radio waves across the sea, Bringing the world to you and me! Marconi had a clever idea, In the eighteen-nineties, loud and clear. In nineteen-0-one, across the sea, A radio message made history! Invent, invent, a brand-new way, Ideas can change our lives each day! News in seconds, music too, Radio brings the world to you! Radio led to TV shows, Great ideas grow and grow! Think, create, and you will see— Inventions change our history! The Radio Changed the World Pre-listening Look and say Who invented the radio? New words: 发明；编造  /ɪnˈvent/ v. 伽利尔摩・马可尼 Guglielmo Marconi /ɡuːˈljelməʊ/ /mɑːˈkəʊni/ Read the conversation. What does Peter think is the most useful invention of all time? 3a 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. have to be + 名词 必须是/成为... What does “radio” refer to here? VS While-listening Listen and choose Listen to the conversation and choose the best answer. 1. What does Peter think is the most useful invention of all time? A. The television B. The radio C. The computer 2. When was a radio message first sent across the Atlantic Ocean? A. In the 1890s B. In 1901 C. In 1910 3. What other invention is mentioned because of the radio? A. The television B. The telephone C. The camera Tip:Pay attention to numbers, names and inventions. While-listening Listen and choose 听句子，选择一个正确答案，并将它读出来。句子读一遍。 Tip 根据答语猜测问句，例如：No,I don’t.问句是Do you....? A.It makes information spread fast. B.Sounds great. A. In the 1890s. B.Amazing. A.You’re welcome. B. Yes, it can. 1.Why does Peter like the radio? 2.When did Marconi develop the radio idea? 3.Can radio send news across the ocean? A.It is useful. B.Yes, they do. 4.What do you think of the radio? Post-listening Fill and retell Listen to the text and fill in the blanks.Then try to retell it. Information Notes Invention The ① ________ Inventor Guglielmo Marconi, an ② ________ inventor Time In the ③ ________ Important event In 1901, a message was ④ across the Atlantic Ocean. Influence News spread quickly; it led to television and helped people enjoy ⑤ ________. Tip:Write down the first two letters. radio Italian 1890s sent music Read again and complete the chart. 3b radio An Italian called Guglielmo Marconi. Developed the idea in the 1890s; first radio message across the Atlantic in 1901 made the world much smaller spread news in seconds led to other inventions like TV had a big effect on music Retell the text! The invention is the radio. It was invented by ..., an Italian inventor. The idea was developed in the ... In ..., the first radio message was sent across ... It changed the world because ... How to talk about an invention? 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. invention(what) effect(why/how) inventor(who) invented time(when) effect(why/how) Four Elements of Describing an Invention: What + Who + When + How (effect) An example The radio is one of the most useful inventions of all time. It was invented by the Italian inventor Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Before the radio was invented, information travelled very slowly. After its invention, news could spread around the world in seconds. The radio also helped lead to other inventions, such as the television. What’s more, it made it easier for people to enjoy music from artists around the world. The radio truly changed people’s lives. 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. Read and learn 有史以来，自古以来 have to be: 必须是 be + V-过去分词：被动语态；被发明 (invent-inventin-inventor) 在几秒钟内 在19世纪90年代 大西洋 第一次 转送，传播 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. quite a/the sth.: 强调在某方面很突出； quite a distance: 相当远的距离 因为 也，又 have an effect on ... :对......产生影响 = all over the world 全世界；世界各地 make it + 形容词 + for sb. to do sth.： 使某人做某事变得…… ‌ Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. 3d I think ... is the most useful invention. It was invented by ... It was invented in ... It changed the world because ... Four Elements of Describing an Invention: What + Who + When + How (effect) 3d Talk about another invention. Pair-work Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. Telephone Alexander Bell. In 1876. It made real-time talking over long distances possible. 3d Talk about another invention. Pair-work Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. 3D Printer Chuck Hull In the 1980s. Ideas are turned into​ real objects quickly, and even body parts can be created​ for medicine. 1. What do you think is the most useful invention of all time？ 【易错提示】of all time 与最高级连用 of all time 必须与形容词/副词的最高级搭配使用，不能单独使用，也不能与比较级连用。   【即学即练】 1. This is ______ invention of all time. A. useful B. more useful C. the most useful D. most useful 2. 翻译句子。屠呦呦是有史以来最伟大的科学家之一。 Tu Youyou is one of the greatest scientists of all time. 2. Before the radio was invented, information travelled very slowly. invent /ɪnˈvent/ v. 发明；编造 【辨】create, discover与invent The man created a new kind of music. 那个人创造了一种新的音乐形式。 The man discovered some jewellery in the box. 那个人在箱子里发现了一些珠宝。 Edison invented the light bulb. 爱迪生发明了灯泡。 26 2. Before the radio was invented, information travelled very slowly. create 创造；创建 指通过想象力等创造出新事物，通常是抽象事物，如艺术、文学作品等，也可指具体的产品 discover 发现 指找到已经存在但以前不为人知的事物，如科学规律、 资源、星系等 invent 发明；编造 指通过研究和设计，制造出以前不存在的新物品或新方法，如工具、方法、材料等 invent /ɪnˈvent/ v. 发明；编造 【辨】create, discover与invent 27 2. It also had a big effect on music. effect /ɪˈfekt/n. 效果；作用；影响 have an effect on 对…… 产生影响； take effect 生效； come into effect 开始实施 相关词形： affect v. 影响；使改变（动词） effective adj. 有效的；起作用的 effectively adv. 有效地；实际上 effectiveness n. 有效性；效用 单词 核心区别 effect 侧重事物带来的客观结果、实际效果，名词； 固定搭配 have an effect on influence 侧重潜移默化、长期的思想 / 性格层面的熏陶、感化，可作名词 / 动词 impact 侧重冲击力强、巨大深远的重大冲击、强烈影响，程度比 effect 更强 辨析：effect, influence和impact 一、用 invent /inventor/invention 填空 Who ______________ the telephone? Edison is a great ______________. This is a great ______________ in human history. 二、单项选择（一般过去时被动） The telephone __________ by Bell many years ago. A. invented B. was invented C. is invented 2.Many new things __________ in the 1990s. A. were developed B. are developed C. develop invented inventor invention B A Exercises 三、句型转换 People invented the camera long ago.（改为被动语态） The camera __________ __________ long ago. 四、翻译句子 互联网对我们的生活产生巨大影响。 这条新闻几秒内传遍了全世界。 The Internet has a big effect on our life. The news spread around the world in seconds. was invented Exercises 五、选用方框中的短语填空（每个限用一次） was invented was spread was sent had a big effect on developed the idea 1. The radio ____________________ in the 1890s by Guglielmo Marconi.   2. Before the radio, news ____________________ very slowly.   3. In 1901, a radio message ____________________ across the Atlantic Ocean for the first time.   4. The radio ____________________ music because it made it easier to enjoy songs from around the world.   5. Marconi ____________________ of using radio waves for communication.   was invented was spread was sent had a big effect on developed the idea 六. 单项填空 (  ) 1. The first airplane ______ by the Wright brothers in 1903, which opened the era of human flight. A. invents B. invented C. is invented D. was invented (  ) 2. The math competition was very difficult, but Tom worked it out ______ with his excellent skills. A. in seconds B. on time C. by chance D. in person (  ) 3. — Excuse me, could you tell me the ______ from here to the nearest subway station? — Sure. It’s about 500 meters. You can walk there in 5 minutes. A. price B. weight C. distance D. height (  ) 4. Lack of sleep _____ your ability to concentrate, and this bad habit has a negative ______ on your study. A. affects; affects B. effects; affects C. affects; effects D. effects; effects (  ) 5. — I think the Internet is the most important invention in human history. — ______. It has completely changed the way we live, work, and communicate. A. I don’t agree B. I’m not sure C. That’s right D. Never mind null 74376.0 null 2976.0 null 81841.805 null 18144.0 null 52344.0 $