九年級(jí)英語(yǔ)全冊(cè) Unit 6 When was it invented Section B2課件 新人教版.ppt

Unit 6When was it invented?Section B (3a-Self Check),Think of something that you do not like to do.Then think of an invention that could help you. Make notes.,Problem:_ New invention:_ What it is used for:_,Writing,Imagine you are a businessman. Write a description of your new invention. This .was invented by .It is used for.,Self Check,1.Complete the passage with the correct forms of the words in the box. invent doult mention nearly website all of a sudden It is often difficult to decide on the inventor of certain invetions. This is because sometimes a few people may _ things which are_ the same.Its 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 . They think that the inventor used someone elses idea to celebrate his or her invention. That is why books or_ usually _ more than one inventor when giving information about inventions.,Self Check 2,Rewrite these sentences using the passive voice. 1.Someone stole my watch. _ 2.They used five eggs to make this bg cake. _ 3.Whe did they invent the personal computer? _ 4.They asked us not to run in the hallway. _ 5.Someone took the vedio back to the store. _,Self Check 3,Find out information about an invention you would like to know more about and write sentences below. Invention:_ When:_ Who:_ Purpose:_,Homework,Write a short passage about an invention. Pre-view the new words in Unit7.,