Unit 5 Section A 2a-2d【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 2a-2d 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） 01 运用被动语态口头描述发明物品的外观、材料、用途和制作过程，在角色扮演中正确使用重音突出关键信息，借助图表和思维导图整理并介绍一项重要发明。（应用实践） 02 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） 03 学习目标 序号 Things Time 1 high-speed train 1964 2 camera 1839 3 TV 1927 4 mobile phone 1973 5 plane 1903 6 laptop 1981 When was...invented? It was invented in... Checklists: Ask and answer correctly. Loud and fluent. Be confident. Review and answer 3 Where did Teng Fei and Ella go? Review and answer What inventions did they learn about? The International Exhibition of Inventions. Super See Smart Cook Lead-in Post-listening Speaking Evaluation Summary Look and say Look at the picture and answer the questions. Pre-listening While-listening We need a small model for the expo, but the box is empty. Can a computer “print” an object? 6 What can a 3D printer do? It can produce all kinds of objects.  Before producing, they all need to be designed. The materials to produce objects are like plastic. chairs tables toys houses shoes food 生产；制造 物体 design v. 设计 材料 塑料 Pre-listening  medicine  arms and legs  hearts  toys  tables  shoes  computers  houses  chairs  food  __________________ 2a. Tick the things that you think a 3D printer can make. You can add more. bikes,cups, phone cases ... I think it can make many daily things like ... Which item on the list surprises you the most? While-listening 2b.Listen to the conversation and answer the questions. 1. Where did Han Lin go last weekend? 2. Why was the 3D printer Han Lin’s favourite invention? Han Lin went to the International Exhibition of Inventions. Because almost everything under the sun can be made by it. International Exhibition of Inventions While-listening 2b.Listen to the conversation and answer the questions. 1. Where did Han Lin go last weekend? 2. Why was the 3D printer Han Lin’s favourite invention? Han Lin went to the International Exhibition of Inventions. Because almost everything under the sun can be made by it. What does “almost everything under the sun” mean? Let’s watch Because almost everything under the sun can be made by it. From 2b, we know Han Lin’s favourite invention is the 3D printer, let’s listen to know how it works. Let’s watch Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. 2c read design produce create send 文件 逐层堆积塑料 v. 读（盘） Listening tips: Before listening, try guessing the answers and writing them down. Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. 2c read design produce create send designed created sent read produced be+V-过去分词 被动语态 分类+视频 Pay attention to using the adverbs of sequence. First, the object is designed on the computer. Then, a file is created by the computer. And the file is sent to the 3D printer. Next, the file is read by the 3D printer. Finally, the object is produced by building up plastic. Retell Lead-in Post-listening Speaking Evaluation Summary Listen and fill Listen again and fill in the blanks Pre-listening While-listening Ella: Hi, Han Lin! Did you go to the last weekend? Han Lin: Yes, some amazing inventions were shown from . Ella: What invention did you like the most? Han Lin: Oh, the 3D was amazing. Ella: Why? Han Lin: Almost everything can be made by it. Ella: Really? Like what? Han Lin: Well, all kinds of . Toys, chairs, tables, and even houses can all be made by the 3D printer. Ella: That’s cool! Han Lin: Yeah. And in medicine, , arms and legs, and even hearts can be created by the 3D printer. Ella: That’s great! How does it work? Han Lin: Well, first, the object is designed on a computer. Then, a file is created and sent to the 3D printer. The 3D printer , and after that, the object is produced by . Ella: Is only plastic used? Han Lin: No, other materials can also be used to produce things. It can even make food. Ella: Oh, really? I’d love to try 3D‑printed food International Exhibition of Inventions all over the world printer under the sun everyday objects for example reads the file building up plastic 国际发明展览会 全世界 打印机 世间；世上 日常物品 例如 读取文件 叠加塑料 19 While-listening Finish and say- How 3D printing influences our daily life Daily things Medicine □ toys  □ chairs  □ tables  □ shoes   □ houses □ food □ clothes □school supplies ... □ medicine  □ arms and legs  □ hearts □ ... Daily things Medicine □ toys  □ chairs  □ tables  □ shoes   □ houses □ food □ clothes □school supplies □ medicine  □ arms and legs  □ hearts □... 分类+视频 How does 3D printing help people in medicine? Post-listening List the things you use every day and choose the one that you like the most. Then talk about what it can be used for and its importance. A: What invention do you like the most? B: Ilike ... the most. A: What can it be used for? B: It can be used for /to ... A: Amazing!/ Fantastic! Is it important in your daily life? B: Yes, it... 2d 1. The object is produced by building up plastic. produce 的一词多义： (1)v. 生产；繁育；制造；产生。be produced by 由……生产 (2)n. 农产品(尤指水果、蔬菜等) 相关词形： (1)product n. 产品；制品(指工业生产的产品) (2)producer n. 生产者；制造商；制片人 (3)production n. 生产；制作；产量 辨析：produce, make 与create produce  强调“大规模生产”(尤指工厂生产或自然产出) make  最通用，强调“制作的过程”(手工、简单制造) create  强调“创造出全新的、原创的事物”(抽象或具体)  例：This phone is produced in China. 这款手机是中国制造的。 She makes cute paper cards for her friends. 她给朋友们制作可爱的纸质贺卡。 The artist created a special painting about hometown. 这位画家创作了一幅关于家乡的独特画作。 2. The object is produced by building up plastic. plastic /'plæstɪk/ n. & adj. 塑料(的) (1)plastic un. 表示“塑料”这种材料 cn. 表示“塑料制品” 常用短语： plastic bag 塑料袋；plastic bottle 塑料瓶；plastic waste 塑料垃圾；plastic products 塑料制品 例：This bottle is made of plastic. 这个瓶子是塑料做的。 3. Oh, the 3D printer was amazing. printer /'prɪntə(r)/ n. 打印机；印刷公司;印刷工人 相关词形：(1)print v. 打印；印刷 n. 印刷字体；印刷行业。 print out 打印出来 (2)printing n. 打印 3D printing 3D 打印 (3)printed adj. 印刷的；打印的 例：My dad bought a new printer for the home. 我爸爸给家里买了一台新打印机。 用括号内所给词的适当形式填空。 Hundreds of new _____________ (invent) are shown at the International Exhibition of Inventions every year. 2. The machine ____________ (connect) to the computer and it can work very well now. 3. We can use 3D printers ___________ (turn) common materials into different everyday objects. 4. Plastic is built up layer by layer to make a real thing by the ________ (print). 5. The new machine is used for ________ (cook) different kinds of dishes automatically. inventions is connected to turn printer cooking 汉语提示填空题。 1. 工程师说这款新型眼镜可以帮助视力不好的人把文字转化为声音。 The engineer says the new glasses can help people with poor eyesight ______ words ______ sound. 2. 这种智能设备被连接到手机后，就能控制家里的灯光和空调。 After this smart device ______ ________ ______ the mobile phone, it can control the lights and air conditioners at home. 3. 老师告诉我们，3D打印机能通过逐层堆叠塑料制作出各种各样的日常物品。 The teacher told us that 3D printers can make all kinds of _______ ______ by _________ ________ plastic. turn into is connected to everyday objects building up 汉语提示填空题。 4. 数百名来自世界各地的发明家参加了这次国际发明展。 _________ ______ inventors from______ ______ ______ ______ took part in the International Exhibition of Inventions. 5. 几乎所有东西——从玩具到椅子——都能被3D打印机制造。 Almost everything, from toys to chairs, ______ ______ ______ by the 3D printer. 6. 科学家们相信，在未来，3D打印技术能给我们的生活带来更多变化。 Scientists believe that 3D printing technology will ______ more changes ______ our lives in the future. Hundreds of all over the world can be made bring to Exercises: 完成句子。 All the players ____________ (praise) highly for fighting hard for their hometowns during the match. With the development of the society, we ______________ (influence) a lot by modern media, such as Douyin and Kuaishou. The book was _________ (translate) into many other languages last year. The boy came up with a ________ (use) idea to save water. Lots of famous ___________ (invent) were made by teenagers. were praised are influenced translated useful inventions 33 Exercises: 根据汉语提示完成句子。 用所给动词的适当被动形式填空： (connect / turn / send / build / break) The digital file ____________ into a real object by the machine. First, the printer ____________ to the computer by a USB cable. The idea ____________ into a useful invention last year. Layer by layer, the cup ____________ from melted plastic. If the machine is used wrongly, it ____________ easily. is turned is connected to was turned is built will be broken 34 null 80457.18 null 96680.805 $