九年级英语全册 Unit 6 When was it invented Section B2课件 新人教版.ppt

1、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 i

2、nvented 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 s

3、ame.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

4、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,Wr