九年级英语Unit+6 Writing（人教版）

Unit 6 When was it invented? （Section B 3a-selfcheck） invent doubt mention website all of a sudden It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _________ things which are nearly 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. doubt invent all of a sudden 1. Complete the passage with the correct forms of the words in the box. adv. 几乎 = almost websites mention Post-writing 1. Someone stole my watch. My watch ___________. 2. They used five eggs to make this big cake. Five eggs _________________ to make this big cake. 3. When did they invent the personal computer? When ______ the personal computer _________？ 4. They asked us not to run in the hallway. _________________ not to run in the hallway. 5. Someone took the video back to the store. The video __________ back to the store. 2. Rewrite these sentences using the passive voice. was stolen. were used by them was invented We were asked was taken 本单元的话题是“Invention (发明)”。“发明”包括发明家、发明物、发明的历史、科技创新等几个方面。 写作内容通常要求根据图表或文字提示介绍发明物的相关情况，或者针对生活中的实际情况，提出自己的建议。 Presentation How is it played? What about the influence and its development ss Presentation How do we introduce an invention? invention What invention is it? Who was it invented by? When and where was it invented? Why was it invented? What is it used for? Summary 积累成句 daily lives日常生活 be made of/from 由……制成 by accident 偶然；意外地 be used to/for 被用来…… at that time 在那时 without doubt 毫无疑问；的确 not only … but also … 不但……而且…… thanks to 由于；多