Unit 5 课时1 Section A（1a-2d）（情境教学课件）英语新教材人教版九年级上册

该初中英语课件围绕“发明的影响”核心主题，涵盖发明相关词汇、被动语态及听说技能。课堂导入通过高铁与黄鹤楼图片分享传统文化与现代科技的融合，结合自动收作业机器人视频引发兴趣，Pre-listening词汇学习与发明时间匹配搭建基础，形成从感知到理解的学习支架。 其亮点在于融合文化意识与思维品质，如“Look and share”环节通过古今结合图片培养文化认同，2d小组讨论鼓励学生结合生活表达创意发明提升思维创新。采用视听结合（视频、图片）和任务型教学（听力匹配、填空、对话练习），强化语言能力，学生能提升听说应用与创新思维，教师可借助结构化活动高效开展教学。

Unit five, power of ideas. Big question, what do creative ideas bring about? Section a, what changes can inventions bring to our lives? Section a, activity one b. Listen to the conversations, choose the invention, each conversation talks about and find out where they are from. Conversation one. Welcome to the international exhibition of inventions over here. We have super acy from germany. They look like sunglasses. What are they used for? Therefore. people who can't see, well, they don't find Normal . glasses helpful. How do they help people to see? Well, a mini is connected to the front of the glasses. IT makes everything look larger. Words can also be turned into sound cool. so they can help people watch T, V and . read books. Yes, they can also control the colour and picture. Amazing conversation too. What smells so delicious, come on, have a try. Smart cook from china is cooking some food. really. How does that work? Is simple. Put food like carrots and onions in the cup on the top of the machine, then press this button. All the food is cutt and fried. The oil insult are also added by the machine itself. fantastic. How many kinds of dishes can I make? hundreds. IT has an up with many recipes. great. With this robot, my parents can take a break from cooking. How nice of you to think so. I'm sure they . will love IT. 这是一台3D打印机，你可以把保存在电脑里的模型在眼前把它们打印出来。它可以打印很多东西，小到玩具、小雕像、电影道具，为你的打印机打印三弟配件，甚至打印食物，真的可以吃的那种，大到像是房子、space x公司、火箭的部件，而唯一的限制就是你的想象力。三弟打印是一种增材制造方式，从无到有，然后逐层添加材料，直到完成。而传统制造模式被称为剪裁制造，将其与剪裁制造相比，材料浪费要少得多。这是三弟打印的一个优势，这部分叫龙门架三弟模型在金属构件板上打印，可取下清洗或更换。底部由强力磁铁固定，有触摸屏控制。打印机也可通过电脑或手机等设备控制顶部塑料壁固定线轴，线材末端手动插入管口后，经管子连到工具头内部，细丝融化后从底部出来，工具头内部经电机旋转将细丝拉到熔丝点。打印机线性制动器可精确定位和移动，一个步进电机带动横向皮带使工具头左右移动。横杆及X轴线性导轨两边螺纹杆旋转时，导轨和工具头上下移动，即C轴线性导轨底部。另一步进电机驱动皮带，使构建平台在Y轴移动。三维运动让打印机逐层创建3D模型，有摄像头可以在打印时拍照，以创建延时视频。三弟打印时长不定，几分钟到数小时甚至一天都可能在构建空间内可创建适合的3D物体。若打印更大更复杂或多部件物体，只需要将物体拆分成多个部分进行打印。那么3D打印机是如何工作的呢？首先需要在电脑上创建需要打印的3D模型。你可以在众多相关网站上找到并下载免费模型文件，也可以使用3D软件自己DIY模型。当然你也可以使用3D扫描从现实世界获取物体并创建模型。但无论哪种情况，一旦有了3D模型，它需要被转换成3D打印机能够理解的格式。切片器程序会将模型分成可打印的层，并生成一种3D打印机可操作的G代码数据。接着准备材料，这里用到了熔融沉积成型FDM或熔融建模的方式。材料呈细丝状，通常是塑料，但这取决于你要打印什么。细丝融化成图案，已形成一层，各层相互堆叠，最后创建出3D物体。细丝通常1.75毫米厚，大约是两张卡片的厚度，它装在大线轴上颜色可自选。细丝有不同的类型。聚乳酸PLA是最常见材料，更硬的材料，不易弯曲有弹性的材料，适合特定用途，更强的材料，承受极端条件能力强。当按下打印按钮时，构建平台和喷嘴热端开始加热。在工具头内部，线性电机开始旋转，拉动细丝，底部喷嘴会变得非常热，如果使用聚乳酸，它会加热到220摄氏度。此时工具头会向左移动，并开始排出细丝，以确保其流动顺畅，这被称为排废料头或打印机废料。另一个步骤是床面调频，就是确保打印版完全水平。任何偏差都可能意味着三弟打印出现缺陷，通常需要几分钟。在开始打印前，他通常会是画几条线，以确保细丝流动正常。在打印板的背面是喷嘴刮板，确保热端完全干净。开始打印。第一层很重要，因为它必须很好地粘附，这也是打印版会被加热的原因。打印机通常先绘制周边，然后是内部，这个内部部分叫做填充，你可以把它做成实心的，但那样太浪费。细丝填充率通常在15%左右就足够了，这样完全可以提供足够的结构支撑。打印这种包含悬空部分的模型时，它需要支撑就是那个绿色的树状结构3D打印机添加与模型一起打印的支撑，你会注意到三弟打印机很好的处理了悬垂部分，打印完成后，支撑可以掰下来。三弟打印机还可以用多种颜色打印，但需要借助自动材料系统组件，它直接连接到3D打印机，有四个细丝线轴，可以放置所需颜色的材料，然后有四个透明管子将组件连接到3D打印机，这是融合轴。每个细丝线轴的末端插入自动材料系统组件内部的孔中，电机开始将其拉过管子细丝卷轴，这里有一个RFID芯片，有了它，机器可以自动识别细丝的类型和颜色。打印前，自动材料系统组件会推动细丝并开始融化，打印机会重复之前加热和校准的环节，完成后三弟打印就可以开始了。打印机到了需要换色的点，工具头会向侧面移动，它会触发靠着工具头内部的一个突出的杆，按下连杆会切断细丝，接着细丝被拉回，然后第二种颜色被推到合适的位置，喷嘴里的一些旧细丝需要被清除，工具头移动到另一边，这里有一个小杠杆，工具头移动并按下杠杆，废料就被清理了。等到新颜色细丝流出，清理结束，当工具头一回时，清扫器会移除废料打印机接着继续下一个颜色的打印，如此工作直到完成。 我们平常收作业的过程复杂，统计的时候很容易出错，因此我设计了智能收作业机器人。我叫张希瑞，就读于深圳市隔着中学，今年13岁。这是我设计的第一代智能收作业机器人，这是第二代。第一代的话它主要使用一个控制板，再利用本子上的贴的二维码来进行识别。每个同学有自己的一个独特的二维码，这样子当我们把书放到它前面这个口时，上面摄像头就能检测到我们的二维码。然后。我觉得这一段可以剪掉二代和一代。主要的功能上的区别是它使用了RFID技术代替了原来的二维码。就是每个本子上贴了一个像这样的RID标签，标签上记载着学生的姓名以及这个本子所属的科目。识别之后，机器将本子输入其内部，并且将其从未交作业的名单上去除。老师只需要从手机上打开收作业机器人的无线界面，就可以看到未交作业的名单。其实也，首先是我们这个机器人还没有投入使用。第二就是我们平常课代表也是非常尽职的时候，少的话会挨个去找是谁谁少了，然后也逃不掉的，非常奇思乱想的一个想法。按照我们现在的技术，我们可以将火星和金星的环境改造成类似地球的。只要我们有足够的耐力和信心，那人类将会有在太空中有第二个、第三个家园，就相当于为后代造福千秋。创载带你感知创新温度。 课型：听说课 课时：1a-2d Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? 学生能够识别、听懂与各类发明相关的核心词汇与表达，听懂介绍发明功能、工作原理的听力对话，理解被动语态描述发明的句式结构，梳理听力中创新发明的基本信息与运作流程。（学习理解） 01 学生能够结合生活实例，自主谈论身边有创意的发明，辩证思考发明给生活带来的改变，主动畅想未来新型发明，借助本课语言知识表达自己对创造与创新的看法。（迁移创新） 03 学生能运用本节课所学词汇与被动句型，围绕发明展开问答交流，口头描述不同发明的用途、操作方式，完成听力匹配、填空等课堂任务，在双人对话练习中熟练询问、介绍各类新奇发明。（应用实践） 02 教学目标 What can you see in the photo? Look and share I can see China’s high-speed train running on the railway. Behind it stands the famous Yellow Crane Tower in Wuhan, with plants and flowers everywhere. How do you feel about the photo? I feel really proud of our country. The ancient tower shows our traditional culture, and the high-speed train stands for modern technology. It’s a perfect mix of old and new. What creative ideas can you find from it? Look and share Ancient people had creative ideas to build great traditional buildings like Yellow Crane Tower. We mix traditional culture and modern inventions together to make our life better. great inventions ? Question What do creative ideas bring about? BIG convenient life technological progress cultural development … 01 Lead-in Let’s watch and think. Let’s watch and think. The student’s creative idea becomes a useful small invention and changes school life. What other useful inventions can make people’s daily life much easier just like this homework-collecting robot?s 02 Pre- listening Words and Expressions invention n. 发明，创造 produce v. 生产，繁育 Match the names with the things. Find out when they were invented. 1a plane camera laptop mobile phone TV high-speed train high-speed train camera TV mobile phone plane laptop 1964 1839 1927 1973 1903 1981 When was the ______________ invented? It was invented in 1964. Let’s ask and answer! high-speed train When was the ______ invented? It was invented in 1981. Let’s ask and answer! lap-top When was the _______ invented? It was invented in 1981. Let’s ask and answer! camera Let’s learn. I wash my clothes every day. My clothes are washed me by everyday. Let’s learn. 一般现在时 am/is/are + done 一般过去时 was/were + done 被动语态 03 While-listening Listen to the conversations. Choose the invention each conversation talks about and find out where they are from. 1b Conversation 1: ______ Conversation 2: ______ A. Super See, from __________ B. Smart Cook, from _______ Germany China What are the glasses used for? They’re used for people who can’t see well. How does Smart Cook work? . . . Listen again and circle T for true or F for false. 1c Super See is a pair of sunglasses designed to protect people’s eyes. A mini-camera is connected to Super See to help with reading. Food is added by Smart Cook itself. A button on Smart Cook should be pressed before cooking. Hundreds of kinds of dishes can be made by Smart Cook. What do the two inventions look like and what can they be used for? Describe them to a partner. 1d What are the glasses used for? They’re used for people who can’t see well. Conversation 1 Guide 1: Welcome to the International Exhibition of Inventions! Over here, we have Super See from Germany. Ella: ______________________. What are they used for? Guide 1: They’re for people who can’t see well. They don’t find normal glasses helpful. Ella: How do they help people to see? Guide 1: Well, ____________________________________________. It makes everything look larger. Words can also be turned into sound. Ella: Cool! So they can help people watch TV and read books. Guide 1: Yes. ____________________________________. Ella: Amazing! Listen again and fill in the blanks. They look like sunglasses a mini-camera is connected to the front of the glasses They can also control the colour and picture Conversation 2 Teng Fei: What smells so delicious? Guide 2: Come and have a try. Smart Cook from China is ________________. Teng Fei: Really? How does it work? Guide 2: It’s simple! ___________________________________ on the top of the machine. Then press this button. All the food is cut and fried. The oil and salt are also added by the machine itself. Teng Fei: Fantastic! How many kinds of dishes can it make? Guide 2: Hundreds! It has an app with many recipes. Teng Fei: Great! With this robot, ___________________________________. Guide 2: How nice of you to think so. I’m sure your mother will love it. Listen again and fill in the blanks. cooking some food Put food like carrots and onions in the cup my mother can take a break from cooking Pre-listening It’s a 3D printer. What’s this? Do you know how it works? Let’s watch and learn. Listen to the conversation and answer the questions. 2a 1. Where did Han Lin go last weekend? 2. What was Han Lin’s favourite invention? Why? He went to the International Exhibition of Inventions last weekend. His favourite invention was the 3D printer. Because almost everything can be made by it, and it is widely used in daily life and medical fields. Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. 2b read design produce create send designed created sent read produced 04 Post- listening Listen again and tick the things you hear that the 3D printer can make. What else do you know that it can make? 2c □ medicine □ arms and legs □ hearts □ toys □ chairs □ tables □ shoes □ computers □ houses □ food I think it can make many daily things like shoes, cups and watches. . . . . . . . List the things you use every day and choose one that is the most useful for your life. Then talk about what it looks like and what it is used for with a partner. 2d A: What invention do you like the most? B: I like ... the most. A: Why? B: ... I like the 3D printer most… What invention do you like the most? 05 Language Points Text 世间所有；一切事物 世界各地 Ella: Hi, Han Lin! Did you go to the International Exhibition of Inventions last weekend? Han Lin: Yes, some amazing inventions were shown from all over the world. Ella: What invention did you like the most? Han Lin: Oh, the 3D printer was amazing. Ella: Why? Han Lin: Almost everything under the sun can be made by it. Ella: Really? Like what? Han Lin: Well, all kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer. Text 堆叠塑料 读取文件 Ella: That’s cool! Han Lin: Yeah. And in medicine for example, arms and legs, 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 reads the file, and after that, the object is produced by building up plastic. 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! 06 Exercises The teacher stressed again that the students should not __________ any important details while retelling the story. A．make out B．leave out C．stand out D．bring out 2 —Mom, may I go shopping with my friends this afternoon? —Sorry. You can’t go out before your homework ________. A．is completed B．completes C．has completed D．had completed 3 These photos are very beautiful. I wonder where they _______. A．were taken B．are taking C．have taken D．are taken 1 Multiple choice. 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 语法填空 are influenced translated useful inventions 07 Homework 1. Memorize the new words and phrases. 2. Practice the conversations with your partner using the words and sentence patterns we have learned . 3. Finish the exercises. Homework Thanks! Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 null 132524.3 null 113688.18 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 null 91194.555 null 96680.805 $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. Section a activity once, see, listen again and circle tea for true or f for false conversation one. Welcome to the international exhibition of inventions over here. We have super acy from germany. They look like sunglasses. What are they used for? Therefore. people who can't see, well, they don't find Normal glasses helpful. How do they help people to see? Well. a mini camera is connected to the front of the glasses. IT makes everything look larger. Words can also be turned into sound ool. so they can help people watch T, V and read books. Yes, they can also control the colour and picture. Amazing . conversation two. What smells so delicious, come on, have a try. Smart cook from china is cooking some food. really. How does that work? Is simple. Put food like carrots and onions in the cup on the top of the machine, then press this button. All the food is cut in fried. The oil insult t are also added by the machine itself. fantastic. How many kinds of dishes can you make? hundreds. IT has an APP with many recipes. great. With this robot, my parents can take a break from cooking. How nice of you to think so. I'm sure they will love IT.