Unit5 Section A（2a-2d）课件2026-2027学年人教版英语九年级上册

Section a activity to see, complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. Hi harley. Did you go to the international exhibition of inventions last weekend? Yes, some amazing inventions were shown from all over the world. What invention did you like the most? Oh, the three printer was amazing. Why almost . everything . under the sun can be made by IT? Really like? why? Well. all kinds of everyday objects, toys, chess tables and even houses can all be made by the . 3d printer。That's cool. yes. And in medicine, for example, arms and legs and even hearts can be created by the 3d printer。That's great. How does that work? Well, first, the object is designed on a computer. Then a fire is created in cent of the three d printer. The three d printer reads the file, and after that, the object is produced by building . up plastic. Is only plastic used? No other materials can also be used to produce things. IT can even make food. Oh. really, i'd love to try three d printed food. Section a activity to b. Listen to the conversation and answer the questions. Hi, harlem. Did you go to the international exhibition of inventions last weekend? Yes, some amazing inventions were shown from all over the world. What invention did you like . the most? Oh, the three d printer was . amazing. Why almost . everything under the sun . can be made by IT really like, why? Well, all kinds of everyday objects, toys, chairs, tables and even houses, can all be made by the three d printer. That's cool. yeah. And in . medicine, for example, arms and legs and even hearts can be created by the three d printer. That's great. How does that work? Well, first. the object is designed on a computer. Then a file is created in cent of the three d printer. The three printer reads the file, and after that, the object is produced by building up plastic. It's only plastic used. No other materials can also be used to produce things. IT can even make food. Oh. really, i'd love to try three d printed food. Unit 5 UNIT 5 Power of Ideas 2a – 2d 3 能够听懂对话的核心内容，准确抓取并记录对话的关键信息，包括3D打印机的功能、工作原理与材料，特别是借助顺序副词（如first、then、next、finally等）梳理并复述3D打印机的工作流程。 能够尝试模仿使用被动语态结构，与同伴交流自己生活中最喜欢的发明创造，描述其功能和重要性，说明自己喜爱这项发明的原因。 能够主动思考并对现代生活中的发明创造产生兴趣，主动了解它们的功能，以及现代发明对人类生活的影响，培养创新思维与科技素养。 n. 打印机；印刷公司 printer Remember to save your document (文件) before you send it to the printer. 在把文件发送到打印机之前，记得先保存。 v. 生产；繁育 produce Hard work always produces good results in the end. 努力工作最终总会产生好的结果。 n.（计算机的） 文件；文件夹 file I have already saved the file on my computer, so I can send it to you later. 我已经把文件保存在我的电脑上了，所以我稍后可以把它发送给你。 n. 塑料 adj. 塑料的 plastic This pen is made of plastic, so it is light and cheap. 这支钢笔是由塑料制成的，所以它又轻又便宜。 It’s a 3D printer. What’s this? What can a 3D printer make? 3D printing is a technology that creates real, solid objects from a digital design. 3D printers build objects layer by layer using materials like plastic and metal. You create or download a design on a computer, and the 3D printer then prints thin layers of material until the object is complete. This process can take minutes to hours, depending on the size of the object. 3D printing Invented in the 1980s, 3D printing has become much cheaper and more popular today, and is now used in many ways. For example, doctors can create artificial bones, engineers can make machine parts, and people at home can print toys, tools, and even jewellery. By allowing people to create custom objects quickly without expensive factories, 3D printing is transforming how we make almost everything. Tick the things that you think a 3D printer can make. You can add more. medicine tables chairs hearts computers arms and legs shoes food toys houses ___________________ Other things: tools, pots, stands, frames, vases, clips, kitchen items, jewellery, car parts, models, artwork, etc. 13 Listen to the conversation and answer the questions. 1. Where did Han Lin go last weekend? He went to the International Exhibition of Inventions. 2. Why was the 3D printer Han Lin’s favourite invention? The 3D printer was Han Lin’s favourite invention because almost everything under the sun can be made by it. Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. read, design, produce, create, send First, the object is _______ on the computer. Then, a file is _______ by the computer. And the file is _______ to the 3D printer. Next, the file is _______ by the 3D printer. Finally, the object is _______ by building up plastic. 1 2 3 4 5 designed created sent read produced 在描述过程时，使用顺序词，可以让描述条理清晰，一目了然。 Pay attention to the expressions. 被动语态： 由“助动词be十及物动词过去分词”构成。助动词be有人称、数和时态的变化。 全世界 like… the most 最喜欢…… 几乎所有东西 各种各样的日常用品 在医学领域 把……送到…… 介绍3D打印机的功能和原理时，大量运用被动语态。 以Ella的递进式提问为线索；Han Lin介绍为主体：引入话题——深挖细节——拓展延伸。 We use hundreds of objects every single day without realizing it. From the moment we wake up to the moment we go to sleep, we depend on things that were once new inventions and were once considered impossible. Think of every object you have used since you woke up. 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: I like … 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 … A: What invention do you like the most? B: I like my bicycle the most. A: What can it be used for? B: It can be used for travelling to school and getting around the city. It can also be used to exercise and stay healthy. A: Amazing! Is it important in your daily life? B: Yes, it is. I ride it to school every day. It saves time and money. It is also good for the environment. 1. And the file is sent to the 3D printer. 文件被发送到 3D 打印机。 send+宾语+ to +地点/人：把…… 发送/寄/送到…… e.g. Please send the letter to my friend. 请把这封信寄给我的朋友。 I will send the photo to you. 我会把照片发给你。 The boy is sent to hospital. 这个男孩被送往医院。 2. Finally, the object is produced by building up plastic. 最后，这个物品是通过塑料逐层堆叠打印而成的。 produce v. 生产；繁育 e.g. This factory produces bikes. 这家工厂生产自行车。 The machine can produce nice pictures. 这台机器能制作精美的图片。 Paper is produced from wood. 纸张是用木材制造的。 product n. 产品 e.g. The 3D printer can make many products. 这台 3D 打印机能制作很多产品。 production n. 生产；产量 e.g. The factory increased its production. 这家工厂提高了产量。 【语境应用】用produce的适当形式填空。 The factory _________ many good ________. Its __________ is very high. produces products production build up 堆积；逐步建成；拼接成型 e.g. The model is made by building up paper. 这个模型是通过堆叠纸张做成的。 They build up small stones to make a wall. 他们堆砌小石头砌成一堵墙。 New words: printer, produce, file, plastic Expressions: like… the most, all over the world, all kinds of everyday objects, in medicine, send… to… Sentences: Some amazing inventions were shown from all over the world. Almost everything under the sun can be made by it. The object is produced by building up plastic. I can 听懂对话的核心内容，准确抓取并记录对话的关键信息，包括3D打印机的功能、工作原理与材料，特别是借助顺序副词（如first、then、next、finally等）梳理并复述3D打印机的工作流程。 尝试模仿使用被动语态结构，与同伴交流自己生活中最喜欢的发明创造，描述其功能和重要性，说明自己喜爱这项发明的原因。 主动思考并对现代生活中的发明创造产生兴趣，主动了解它们的功能，以及现代发明对人类生活的影响，培养创新思维与科技素养。 Preview the conversation on page 44. Write 5 sentences to describe your favorite invention. Write about its uses, how it works, its importance and the changes it brings to your life. null 91194.555 null 96680.805 $