Unit 4 Inventions-Writing 课件 2025-2026学年沪教版（2024）英语八年级上册

该初中英语课件围绕“介绍发明的写作”展开，课堂导入通过猜谜游戏描述空调、冰箱等发明的外形、材料、功能，引导学生总结介绍要素（外形、材料、好处、用途），搭建从范文分析到思维导图+写作模板的学习支架。 其亮点在于以猜谜游戏激活思维，结合思维导图和写作模板培养思维品质与语言能力，如范文用“300 km/h”和“instead of”提升表达准确性，联系现实问题培养创新思维。学生能提升结构化写作能力，教师可借助模板和游戏提高教学效率。

Unit 4 Inventions-Writing 主题范畴: 人与社会 主题群: 科学与技术 子主题: 科学技术与工程,人类发明与创新 Key question What makes an invention great? master the key words and phrases related to inventions, such as "solar power", "top speed", "instead of", etc. draw a mind map before writing about my idea for a new invention; write an article about a new invention with what I have learnt in this unit. Learning objectives 学习目标 At the end of the class, students will be able to: Lead in Let’s play a guessing game. Read the description and guess what the invention is. It usually has a rectangular shape. Some are white, and some may have other colors. People can feel comfortable in different seasons with it. It can make the room cool in summer and warm in winter. air conditioner 3 Lead in Let’s play a guessing game. Read the description and guess what the invention is. It is a tall and large appliance, usually with a rectangular shape. It can be white, silver or other colors. It can keep food fresh for a long time. People can store a lot of food in it and enjoy fresh food whenever they want. fridge 4 Lead in It is often a large, box - like appliance. It can be white or silver. It can clean clothes automatically. People don't need to wash clothes by hand anymore with it. washing machine Let’s play a guessing game. Read the description and guess what the invention is. 5 Lead in It is a small, flat device that can fit in your pocket. It has a screen on the front and buttons or a touch - screen interface. It can be used for making calls, sending messages, surfing the Internet, taking photos and many other things. smartphone Let’s play a guessing game. Read the description and guess what the invention is. 6 Lead in It is usually round in shape. It is often made of materials like rubber, metal, or plastic. It makes moving heavy objects much easier and saves a lot of effort. People use it on various things—like cars, bicycles, carts, and even office chairs. wheel Let’s play a guessing game. Read the description and guess what the invention is. 7 Pre-writing After reading the descriptions, can you summarize what can we write if we want to introduce an invention? shape/appearance material benefits usage 8 Pre-writing Writing an article about a new invention. 9 Ask questions about Wang Yao’s invention—A flying car. Collect ideas for the mind map below. My invention— A flying car What it is What it can do Main features Benefits of my invention What it looks like Pre-writing Read Wang Yao’s article to find out how she organized her ideas. What it is What it can do Main features Benefits of my invention What it looks like ① ② ③ ④ While-writing Read Wang Yao’s article and complete the mind map with key words. Read for details a flying car fast, convenient, green four wheels use solar power travel at a top speed of 300 km/h be controlled by voice two wings avoid traffic jam make driving a more exciting experience fly anywhere they like and enjoy the view at the same time What it is and its main features What it looks like What it can do Its main benefits A flying car run on land fly in the air While-writing Read for language Underline the sentences that describe the car’s features. How does the writer make them clear and convincing? topic sentence While-writing Compare the following sentences and decide which is better. Read for language Sentence 1: It travels a long way in a short time. Sentence 2: It has a top speed of 300 km/h. You can travel farther distances in less time. Sentence 3: Instead of petrol, the car uses solar power, so it will not pollute the air. Sentence 4: The flying car doesn’t use petrol. It uses solar power. It will not pollute the air. Tip 1: Use numbers and comparative language to make sentences clearer and more persuasive. Tip 2: Use linking words to make sentences more coherent. While-writing Plan and write Step 1 Draw a mind map for your own invention. Step 2 Write about your invention. You can also draw a picture of it. Post-writing 写作思路: Part 1: What it is & What it does ① My invention is _ (你的发明名称). It is _, _ and _. (使用三个形容词概括发明的特点,如:useful, smart, green, amazing, cool 等) ② The _ (发明名称) has _ (描述其主要部件,如:a screen, a sensor, two buttons, four wheels). It can _ and _. (列出它的主要功能,功能一和功能二) Part 2: Main Features It has a top speed of _ (描述速度/效率). You can _ (这样做带来的好处). The _ (发明名称) can be controlled by _ (控制方式,如:voice, a remote control, a smartphone app). If you _ (给出一个具体的指令示例), it will _ (描述发生的反应). Then you can _ (描述用户能做的事情). You will feel as _ as a _ (使用一个比喻,如:free as a bird, happy as a king). Instead of _ (传统能源,如:petrol, electricity), it uses _ (新能源,如:solar power, air), so it will not pollute the environment. Part 3: Benefit of the invention As we know, _ (描述一个现实存在的问题,如,traffic is getting heavier, people have less time to read). My invention will help people _ (解决什么问题,如,avoid traffic jams). It will make _ (相关活动) a more _ (形容词, 如:exciting, enjoyable, relaxing) experience too. People can _ (展望美好的使用场景) and enjoy _ at the same time. 实用表达: 外形: 特点: 能源 圆的round 方的square 大的huge 小的small silver 银 medal 金 iron铁 wood 木头 方便的convenient 特别的special 环保的green 创新的creative/ innovative 舒服的comfortable 现代的modern 有用的useful 珍贵的valuable 流行的popular 轻的 light solar power太阳能 wind energy风能 air空气能 tidal energy潮汐能 petrol汽油 electricity 电能 描述外形: It looks like _ and has _. 描述功能: It is able to _. It has the ability of _. 使用什么能源 Instead of _, it uses _ so it’ s greener / more eco-friendly. 描述现状,提出优势: As we know, the problem of _ is getting serious. My invention will help _. Write about an invention Expressions and sentence patterns Summary Evaluation What it is What it looks like What it can do Main features Benefits of my invention Contents, language, structure, writing Contents My invention: A pair of special shoes 假设你们学校要开展一个名为“小小发明家”的活动。你发明了一双特别的鞋,所以想参加这次活动。根据以下提示给大家介绍你的发明。要求:80词左右,可适当发挥。 1.看起来像普通的鞋,但是鞋的材料很特别,鞋底里有电池; 2. 冷的时候,可以使人们感觉到温暖,热的时候,可以使人们感觉到凉爽; 3.你对该项发明的看法。 写作步骤 审题 (一)人称:用第三人称来介绍自己的发明; (二)时态:介绍发明,以一般现在时为主; (三)书写正文:按照提示要点写作,可适当补充内容,注意文章的自然衔接; (四)检查全文:时态、人称、要点。 联想:写作本篇作文可能用到的词汇、短语:normal, material, battery, sole(鞋底) Homework Thank you for your listening $