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课件网) 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 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 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. 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. 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. 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 Pre-writing Writing an article about a new invention. 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 exciti ... ...
