Unit 5 Power of Ideas Section A课件2026-2027学年人教版九年级英语上册

该初中英语课件围绕“发明对生活的影响”展开，涵盖发明描述、被动语态等核心知识点。课堂通过图片观察提问、发明与时间匹配等活动导入，知识脉络从听力理解Super See、Smart Cook等发明，到3D打印机原理，再到收音机历史，最后系统学习被动语态，辅以对话练习、填空、图表完成等学习支架。 其亮点在于融合语言能力与思维品质，通过听力提取信息（如1c判断发明功能）、思维导图创作（26页描述重要发明）培养分析与创造能力，结合中国Smart Cook、青藏铁路等案例渗透文化意识。采用任务型教学，学生在描述发明、完成短文等活动中提升语言运用和问题解决能力，教师可高效落实课标要求。

Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? (1a-1d) Learning Objectives In this lesson you will: understand the key information about two inventions through listening. 2. describe the appearance and uses of inventions using simple English. 3. discuss how creative ideas can solve problems and improve people’s lives. 1c Listen again and circle T for true or F for false. 1. Super See is a pair of sunglasses designed to protect people's eyes. 2. A mini-camera is connected to Super See to help with reading. 3. A button on Smart Cook should be pressed before cooking. 4. All the food is added by Smart Cook itself. 5. Hundreds of kinds of dishes can be made by Smart Cook. T F T F T F T F T F for people who can’t see well people put food in, the machine cut and cook Look and Share 1. What can you see in the photo? 2. How do you feel about the photo? 3. What creative ideas can you find from it? 1a Match the names with the things. Find out when they were invented. plane camera laptop mobile phone TV high-speed train high-speed train camera TV mobile phone plane laptop Conversation 1 Guide 1: Welcome to the International Exhibition of Inventions! Over here, we have Super See from Germany. Ella: They look like sunglasses. 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, a mini-camera is connected to the front of the glasses. 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. They can also control the colour and picture. Ella: Amazing! Conversation 2 Teng Fei: What smells so delicious? Guide 2: Come and have a try. Smart Cook from China is cooking some food. Teng Fei: Really? How does it work? Guide 2: It's 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 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, my mother can take a break from cooking. Guide 2: How nice of you to think so. I'm sure your mother will love it. 1d What can the two inventions be used for? Describe them to a partner. A: What can the special glasses be used for? B: They're for people who can't see well. A: How do they work? B: .. Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? (2a-2d) Learning Objectives In this lesson you will: understand how a 3D printer works and what it can make. use the passive voice to describe the process of 3D printing. discuss the advantages of 3D printing and share opinions on the most useful everyday invention. 2a Tick the things that you think a 3D printer can make. You can add more. medicine arms and legs hearts toys tables shoes computers houses chairs food 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? He went to the International Exhibition of Inventions. Because almost everything under the sun can be made by it. It can make everyday objects like toys, chairs, tables, and even houses. It can also create arms, legs, and even hearts in medicine, and it can even make food. 2c Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. The object is ________ on the computer. read design produce create send A file is _______ by the computer. The file is _____ to the 3D printer. designed created sent The file is ______ by the 3D printer. The object is ________ by building up plastic. read produced Listening Script 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. 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! 2d 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 ... Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? (3a-3d) Learning Objectives In this lesson you will: extract key information (inventor, time, impact) from a conversation about the radio. 2. discuss how an invention changes the world and express their own opinions. 3. create a mind map about another important invention and describe it to a partner. 3a Read the conversation. What does Peter think is the most useful invention of all time? He thinks radio is the most useful invention. 3b Read again and complete the chart. Invention: ____________ Who was the inventor? When was it invented? How did it change the world? Guglielmo Marconi in 1890s / 1901 radio ______________________ ______________________ ______________________ made the world smaller news spread in seconds made music global 3c Listen to the conversation. Pay attention to how the key information is stressed. Then role-play the conversation. 3d Choose another invention you think is the most important and make a mind map about it. Then describe it to a partner. Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? (4a-4c) Learning Objectives In this lesson you will: understand the function of the passive voice and identify its basic structure in context. 2. correctly form and use the passive voice in the simple present and past tenses to describe how things are made, invented, or done. 3. apply the passive voice to describe a major engineering project by completing a factual passage. 4a Read the sentences. Circle the verbs in the passive voice. A mini-camera is connected to the front of the glasses. The oil and salt are also added by the machine itself. Toys, chairs, tables, and even houses can all be made by the 3D printer. A radio message was sent across the Atlantic Ocean for the first time in 1901. 什么是被动语态 (passive voice)? 语态是动词的一种形式，用来说明句中主语和谓语动词的关系。如果主语是动作的执行者，则使用主动语态；如果主语是动作的承受者，则使用被动语态。 The old man captured the thief. The thief was captured by the old man. captured这个动作的发出者 captured这个动作的承受者 被动语态的句子以“be动词+过去分词”构成，如果要特别强调动作或行为执行者时，句子后面需接by...，译为“被/由......”。 The song was written by my sister. Confucius’ works are still read by many people today. be动词要根据人称、数和时态发生变化，be动词后面的过去分词不变。 被动语态的构成与时态 时态 结构 例句 一般现在时 一般过去时 含情态动词 am/is/are+过去分词 History is made by the people. was/were+过去分词 The light bulb was invented by Edison. 情态动词+be+过去分词 Future houses could be powered entirely by the sun. 被动语态的各种时态是通过be动词的时态变化来体现的。be动词是什么时态，全句就是什么时态。 被动语态的句型 肯定句 主语+be+过去分词+(by...) E.g. The child is well loved by people. People in the world are influenced by Confucius’ thoughts. 否定句 主语+be not+过去分词+(by...) E.g. The first smartphone wasn’t made by Apple. The battery was not charged by anyone yesterday. 一般疑问句 Be+主语+过去分词+(by...)? E.g. Was your homework finished yesterday? Were these computers made in China? Yes, it was. No, it wasn’t. Yes, they were. No, they weren’t. 特殊疑问句 疑问词+be+主语+过去分词+(by...)? E.g. A: What language is spoken in China? B: Chinese. A: When was the new library built? B: It was built last year. A: Why was the meeting cancelled? B: It was cancelled because of the rain. 4b Complete the sentences with the correct forms of the verbs in brackets. 1. The telephone ____________ (invent) by Alexander Bell in 1876. 2. People all over the world ____________ (connect) to each other through the internet. 3. The word “robot” ____________ (introduce) for the first time in a play in 1920. was invented are connected was introduced 4. It wasn't supposed to make such a loud noise when the button __________ (press) to start the machine. 5. It is believed that the world's oldest wheel __________ (find) in Eastern Europe. was pressed was found 4c Complete the passage with the correct forms of the verbs in brackets. Make a profile of the Qinghai-Xizang Railway. The Qinghai-Xizang Railway was completed in 2006. It _________ (connect) Xining to Lhasa, a huge distance of 1,956 kilometres, and it is the highest railway in the world, reaching 5,072 metres above sea level at Tanggula Pass. connects The building of the railway was a great challenge. Creative ideas __________ (need) to solve different problems. In summer, the top layer of the frozen ground would melt and become too soft to build on, so pipes __________ (use) to keep the ground hard. However, in some places, it was impossible to build the railway over the frozen ground, so tunnels had to __________ (create) instead. In some other places, bridges _________ (build) to keep the railway up above the ground. These bridges are animal-friendly and _________ (allow) animals to pass under the tracks. were needed were used be created were built allow As an important and successful project, the railway has ________ (increase) tourism and economic development in the area. The lessons learnt and experience gained from building this railway will help ___________ (improve) transport in other similar places in the world. increased (to) improve null 113688.18 null 91194.555 null 96680.805 null 81841.805 $