仁爱版九年级上册英语Unit 4 Topic 1 Section C课件.ppt

Unit 4 Amazing ScienceTopic 1 When was it invented ? Section C Invention Inventor Year car Karl Benz 1885 telephone Alexander Graham Bell 1876 TV John Baird 1926 A: When was the car invented? B: It was invented in 1885. A: Who was the car invented by? B: It was invented by Karl Benz. Work in groups and discuss the questions before reading. What is an invention? invention n.发明，创造 invent v. 发明，创造 inventor n. 发明者，发明家 An invention may be a new product or a new way of doing things. invention crayon thought silly brainstorm evaluate redesign detailed 愚蠢的，傻的 发明，创造 彩色铅笔 想法，看法，主意 集思广益，动脑筋 重新设计 估值，评价，评估 详细的 A. Draw your invention. B. Name your invention. C. Test your invention. D. Use your imagination. E. Plan and design your invention. 1b Read 1a and put the sentences in the correct places . ___ You can have wild and crazy thoughts. Remember that no idea is too silly. Many people laughed at the Wright brothers and said they would never fly. But they weren’t discouraged by what people said. That’s why now we have planes. D 想像力 1b Read 1a and put the sentences in the correct places . _______ Careful planning is important in the invention process. This is the time to brainstorm for ideas and to evaluate them. _______ Make a detailed drawing of your invention so others will understand how your invention works. Make a model of your invention. _______ See if your invention works as it is planned . If not, do more research, redesign it, and test it again. _______ Every invention needs a name. Share your inventions with others. E A C B 1a Read and understand. 1.People used the light bulbs widely in the past. (改为被动语态） The light bulbs ______ ______ _______ by people in the past. 2. We can launch spaceships to explore other planets. (改为被动语态） Spaceships can ____ _________to explore other planets. 4. The MP3 player was developed around 1998. (对划线部分提问) ________ ________ the MP3 player _______________? were