Unit5 Section A3a-3d 课件2026-2027学年人教版九年级英语上册

What do you think is the most useful invention of our time? Peter IT has . to be the radio rao. 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 invention? An italian inventer called google mark ony. He developed the idea in the eighty nineties. In nineteen, no one, a radio message was sent across the atlantic ocean for . the first time. 哇哦，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. Oh, there are so many great inventors who made great to change our lives. Because of them, we can live a Better and happier life today. I think the radio is one of the most important inventions of all time. Let's learn about IT together. Google elm mark ony eighteen seventy four to nineteen and thirty seven was a well known italian invention and scientist. Wireless radio was invented by him. And this invention later based for information, communication and TV development. Marconi was born in boni, italy. He became interested in physics and electronics at an early age. In eighty ninety five, wireless radio was created. Sounds and pictures could be sent far away without wires. This invention caused a big stir. Back then, I was admired by thousands of people. IT was seen as a great technical breakthrough and landmark achievement. New creative ideas were offered to later scientist by his work. Today's TV technology was developed from his radio. Tvs are regarded as necessary media in our daily life. They are used for entertainment, study and cultural communication. Maroney's radio is the foundation of all these changes. He will always be remembered by us. What do you think is the most useful invention . of all time? Peter IT . has to be the rao rao. 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 inventer called gug marconi. He developed the idea in the nineteen in O, A radio message was sent across the 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 round the world. Hello, i'm Peter. Today i'm visiting the international exhibition of inventions. I want to show you some great inventions that have changed our lives. Do you know about them? Presentation Unit5 Power of Ideas Section A What changes can inventions bring to our lives? (3a-3d) 对话阅读课公开课 单元主题范畴：人与社会 单元主题内容：科技与发明，科技发展对人类社会的影响 (2024新版)人教版 九年级(上册) Presentation Learning Objectives 1.通过听读对话，获取3D打印的工作流程以及收音机的发明者、发明时间和历史影响等关键信息，理解被动语态在描述发明创造时的形式和意义。（学习理解） 2.在听力、对话练习中，提取新型发明的功能、来源、工作流程的关键信息；能围绕 “发明” 开展问答、双人讨论，清晰描述发明的用途、工作方式，分析发明给生活带来的改变。(学习理解，应用实践) 3.能讨论 3D 打印等新发明给未来生活、医疗和社会带来的便利与潜在问题，能大胆想象未来还能用 3D 打印创造什么；选择一项自己认为最重要的发明，从多方面进行介绍并阐述理由，表达个人观点，感受发明对生活的影响和发明家的创新精神。(迁移创新) Presentation Watch and sing Presentation Watch and say Presentation Watch and say What is the invention? It’s the mobile phone. When was it invented? It was invented in 1973 Who was the inventor? It was invented by Martin Cooper What changes can it bring to us? We can communicate(交流) with others _______. The world is made much _______ by the smart phone. smaller easily Presentation Look and guess Guessing game What invention is it? It is an old but useful invention.  Before it was invented, news travelled very slowly. With it, news can spread around the world in seconds. An Italian inventor called Guglielmo Marconi invented it. It does not show pictures, but you can hear its voice. radio Guglielmo /ˈɡʊgjelməʊ/ Marconi 古列尔莫·马科尼 Presentation Look and say Who invented the radio? 伽利尔摩・马可尼 Guglielmo Marconi /ɡuːˈljelməʊ/ /mɑːˈkəʊni/ New words: 发明；编造  /ɪnˈvent/ v. Presentation Watch and say Let’ s listen to know more details about the radio. Presentation Listen and choose Listen to the conversation and choose the best answers. 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. Presentation Watch and say Listen again and fill in the blanks Fu Xing: What do you think is the most of all time, Peter? Peter: I thas to be the radio. Fu Xing: The radio? Why? Peter: Before the radio ____ , information ___________ very slowly. The world_________ much smaller by the radio. Suddenly, news could_________ around the world . Fu Xing: Right. Who was the ? Peter: An Italian inventor called Guglielmo Marconi. He in the 1890s. In 1901, a was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a _________ at that time. Peter: Yeah. And because of the radio, some other important__________ 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 . useful invention was invented travelled was made be spread in seconds inventor developed the idea radio message distance inventions around the world 有用的发明 Presentation Look and predict 1. Who is the man in the picture? What is he doing? He may be the inventor of the radio. He is doing experiments with his radio equipment. Look at the picture and answer the questions. Presentation Read and say Read the conversation.What does Peter think is the most useful invention of all time? Peter thinks the radio is the most useful invention of all time. 3a 2. What does [radio] refer to here? 有史以来 A. B. Presentation Look and learn Wireless Telegraph Radio Early radio sent messages by radio waves using Morse code Later radio a receiver for sound played music and news, people called it a radio Radio can mean both the early technology and the later receiver knowledge-extending What is the difference? Presentation Read and answer What information about the radio is mentioned in the conversation? The inventor The time of its invention Its effect Presentation Read and complete Read again and complete the chart. 3b Let’s read it carefully and find out the answers. Presentation Read and complete 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. Who’s the inventor? When was it invented? How did it change the world? ① The world was made ___________. News could be spread _______________ in seconds. much smaller around the world Presentation Read and complete 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. How did it change the world? ②Some other important inventions __________________. ③It also _____________ on music. The radio made it much easier for people to __________. had a big effect enjoy music were developed as well Presentation Read and complete Read again and complete the chart. 3b the radio Guglielmo Marconi The idea was developed in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. ① It made the world much smaller. ② It led to other important inventions like the television. ③ It made it much easier for people to enjoy music from artists around the world. Presentation Read and say 1. How does Fu Xing keep the conversation going? 2.What does Peter mean by saying “the world was made much smaller”? By asking questions and giving comments. It means the radio helped news travel fast. People could quickly know what happened far away, so the world felt much smaller. 3.Why was the 1901 radio message important? It showed that messages could travel across a great distance. Presentation Read and say Read again and analysis the conversation. 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. What Why Who When How Presentation Read and say 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. Four questions invention opinion/importance inventor/history influence How is the dialogue organized?. Presentation Listen and read Listen to the conversation and pay attention to how the key information is stressed. Then role-play the conversation. 3c 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. 符合英语听力实词重读规则：名词、动词、形容词、核心时间 / 专有名词、疑问词重读；虚词弱读） What do you think…? 你认为…怎么样？ I think… 我认为… When was…invented? ……是什么时候发明的？ It was invented in… 它是在……发明的。 Who was the inventor? 是谁发明的？ It was invented by… 它是被……发明的。 Presentation Look and say 疑问词必重读：What、Why、Who 话题核心名词重读：radio、invention、news、world、music、television 关键形容词 / 副词重读：most useful、slowly、smaller、suddenly、big、easier 专有名词、时间数字重读：Guglielmo Marconi、Italian、1890s、1901、Atlantic Ocean 实义动词重读：invented、travelled、spread、developed、sent、enjoy 注意：冠词、介词、连词这类虚词轻读，不加重音，贴合日常口语朗读节奏 符合英语听力实词重读规则：名词、动词、形容词、核心时间 / 专有名词、疑问词重读；虚词弱读） Presentation Listen and role-play Listen to the conversation and 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. Presentation Watch and imitate Presentation Fill and retell Fill in the blanks and then retell the dialogue. 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 ________. radio Italian 1890s sent music Presentation Fill and retell An example Peter thinks the most useful invention of all time has to be radio. 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 world was made much smaller by the radio. Because of the radio, some other important inventions were developed as well, like the television. It also had a big effect on music. What’s more, it made it easier for people to enjoy music from artists around the world. The radio truly changed people’s lives. Presentation Think and say Deep think When do you use a radio in your daily life? What other influence do you think the radio has on our world today? Sometimes I listen to the radio with my grandparents. The radio helps drivers know traffic information on the road. What qualities do you think Guglielmo Marconi had to invent the radio? creative hard-working brave clever persistent imaginative Presentation Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. 3d Choose and describe Invention: _______________ Who was the inventor? _________________________________ When was it invented? _________________________________ How did it change the world? _________________________________ gunpowder Ancient Chinese people It was invented in the Tang Dynasty; it was widely used for wars and fireworks in the Song Dynasty It changed old fighting ways, helped make new weapons, and brought colourful fireworks for people’s festivals Presentation Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. 3d Choose and describe Sample I think gunpowder is the most useful invention. It was invented by ancient Chinese people in the Tang Dynasty. Later, it was widely used for wars and fireworks in the Song Dynasty. It changed the world because it changed old fighting ways and helped people make new weapons. Besides, it brought colourful fireworks for people’s festivals. Presentation Watch and say How do you feel after watching the video? Proud/excited. Presentation Look and summarize Let’s summarize what we have learned. We have learned: the radio‑the most useful invention in Peter’s eyes. some new phrases about inventions. how the radio changed the world. We can: understand the conversation about inventions. get key information from the dialogue. make a mind map and describe an invention to our partner. Presentation Class test Ⅰ. 用所给单词的适当形式填空 1. The wish to improve our lives is always the driving force for new _______________(invent). 2. The factory ________(produce) 10,000 mobile phones last month. 3. We should learn how to connect the________(print) to the computer. 4. The girl ________(call) Lily is my new classmate. 5. She wears a hat __________(protect) her skin from the strong sun. inventions produced printer called to protect Presentation Class test Ⅱ. 完成句子。 1. 这款新的应用程序让学生学习英语词汇变得更容易。 The new app ____________________________ English vocabulary. 2. 数百名志愿者参与了清理公园的活动。 ______________________joined the activity to clean up the park. 3. 很多人认为他是有史以来最伟大的篮球运动员。 Many people think he is the greatest basketball player ___________. 4. 吃太多糖对我们的牙齿有不良影响。 Eating too much sugar ________________on our teeth. 5. 在街上遇到老朋友，真是相当大的惊喜。 It was ________________when I met my old friend on the street. makes it easier for students to learn Hundreds of volunteers of all time has a bad effect quite a surprise Presentation Class test The light bulb is one of the most useful inventions 1.______ all time. Its inventor 2.________ (be) Thomas Edison. He 3.__________ (develop) this great invention in the 1870s. In 1879, the first practical light bulb 4.___________ (light) for the first time. Because 5._______ the light bulb, people’s daily life was made much 6._______(bright) at night. It had a big effect 7.________ people’s work and life. It made it much easier for people 8._________ (study) and work after dark. More new inventions 9._____________ (develop) as well 10 .________(late). was of developed was lit of brighter on to study were developed later ⅡI. 语法填空。 Presentation Must do: 1.Copy the key words and passive sentence patterns of this lesson, finish the chart in 3b and translate key sentences. 2.Read the dialogue between Fu Xing and Peter with your family in different roles. Choose to do:  Improve your class mind map, and write a short passage (about 80 words) to introduce the most important invention in your mind. You need to use at least two passive voices in the article. null 2976.0 $Great inventions, great minds. Thomas Edison, with the way with the bob so bright night turns to day Alexander m. The telephone connects us. The right brothers took in the airplane, helps us ly printing Price James walk with power so grand, go to move the land curry so grave and wise her work on radiation Benjamin Franklin with a Spark in the rain I discovered electricity or altering game break minds with dreams. So both and true, they change the world for me and you. Ladies and gentlemen, welcome to a journey. Through china's remarkable advancements in artificial intelligence and technology, china has rapidly positioned itself as a global leader in AI development. Many chinese innovative companies are creating smart technologies that are as good as or even Better than those in other countries. For example, deep seeks r one model is making a big difference by changing how people use technology around the world. In addition, china has built the largest 5g network in the world。This powerful network allows people to connect faster and Better than ever before. With five g cities become smarter, self driving cars become safer, and everyday life becomes more convenient. To sum up, china's development in AI and 5g technology shows how innovation can build a smarter and Better future for everyone。Thank you.