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课件网) Unit 6 When was it invented 课时：Section B 3a-Self Check 人教版九年级全一册 课型：写作课 Post-writing Complete the passage with the correct forms of the words in the box. 1 invent, doubt, mention, nearly, website, all of sudden It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _____ things which are _____ the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions _____. So some people _____ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _____ usually _____ more than one inventor when giving information about inventions. invent nearly all of a sudden doubt websites mention Post-writing Rewrite these sentences using the passive voice. 2 1. Someone stole my watch. My watch was stolen (by someone) 2. They used five eggs to make this big cake. Five eggs were used (by them) to make this big cake 3. When did they invent the personal computer When was the personal computer invented 4. They asked us not to run in the hallway. We were asked not to run in the hallway (by them) 5. Someone took the video back to the store. The video was taken back to the store (by someone) Post-writing Find out information about an invention you would like to know more about and write sentences below. 3 Invention:_____ When: _____ Who: _____ Purpose:_____ switch plug (断路插头) 2012， 富超穎 (中国) scooter carriage (滑板婴儿车) 2007年 Valentin Vodev (奥地利) Summary How to introduce an invention 开篇点题 详尽描述 表达观点 How to introduce an invention ....was invented by/in... Because... It is made of…/It looks like… It was used to/for … It can not only … but also … Without doubt I like … because … Exercises 二、用括号内所给单词的适当形式填空 1. I think the soup tastes quite _____ (salt) . 2. The cake _____(smell) terrible. So I didn't eat it. 3. She found that her son had a _____ (music) talent. 4. These _____ (Canada) can speak Chinese very well. 5. Now we can find information on different _____ (website). salty smelt musical Canadians websites Exercises 6. This trip was very _____ (please) . Every one had a good time. 7. Zheng Chenggong is a great _____(nation) hero in Chinese history. 8. The _____(customer) were angry because the potatoes were not thin. 9. You can ask Xiaoyi, Xiaoai or Siri in your mo bile phone to_____(ring) someone. 10. Many young people look up to these basketball _____ (hero) and want to become like them. pleasant national customers ring heroes Lead in How to introduce them When was it invented Who was it invented by It was invented in/by… Lead in How to introduce them What is it/are they used for Why are they invented by They are used for… Lead in How to introduce them Who was it invented by How was it invented What are the influences It wa ... ...
