新目标英语九年级第九单元第一课时课件_2

1、Unit 9 When was it invented? period one mikhray,Go for it ! Grade 9,Four great inventions of China,Cai Lun invented the paper making in 105 .,invented,the paper making,in 105 .,Cai Lun,The paper making,was,by,invention,invent,inventor,Task 1: Guess: Which one was invented earlier and which one was i

2、nvented later.,A: I think the was invented before the B: Well, I think the was invented after the ,calculator,Task 2: Listen and find out the dates of the inventions.,The was invented in ,1885,1876,1971,1976,1927,Do you remember?,A: When was the invented? B: It was invented in ,-Who was the paper ma

3、king invented by (in 105)?,-It was invented by Cai Lun.,The paper making was invented by Cai Lun in 105.,Task 3: Lets guess who invented it .,A: Who was the invented by? B: I think it was invented by ,car computer telephone light bulb,Steve Jobs and Steve Wozniak Edison Karl Benz Bell,Task 4: Do you

4、 know what they are used for? Lets match them to the uses!,1.talking with the person who isnt near 2.traveling 3.cooking 4.eating food 5.keeping away from the rain 6.waking us up,The is/are used for ing.,-What is/are the used for? -It is /They are used for ing.,Task 5: Work in pairs to talk about th

5、e uses of the things around us. You can talk about the things below if you want.,Task 6: Lets know more inventions.,A: When was/were the invented? B: It was/They were invented in ,A: Who was/were the invented by? B: It was/They were invented by ,A: What is/are the used for? B: It is /They are used f

6、or ing.,Task 7: 4 students a group to report: introduce an invention including its inventor/date and uses.,SUMMARY: .被动语态的构成:,1.be+过去分词+by+(动作执行者). 2.被动语态句子的时态由be的时态决定,be后的过去分词不随之改变. 3.否定句:在be后加not. 4.疑问句:把be提前.,SUMMARY: .主动语态变被动语态:,1.主动语态的宾语 被动语态的主语. 2.主动语态的动词 be+该动词的过去分词 (作被动语态的谓语). be按人称变化,但时态不变.

7、 3.主动语态的主语 by+该主语(放在被动语态的句尾,可以省略). 若原主语是代词放在be后要变为其宾格形式.,被动语态专项练习 .据划线部分提问 1.Glasses were invented in1450. 2.The bottle machine was invented by Michael Owens . 3.Dictionaries are used for looking up words.,When were glasses invented?,Who was the bottle machine invented by?,What are dictionaries used

8、 for ?,.用所给词的适当形式填空: 1._ a new library _ in our school last year? (build) 2.They _ to school. (take) 3.-When _ these computers _in this school? -Last year. (use) 4.The Great Wall _ all over the world. 5.I _ in summer. (bear) (know) 6.Who _ this book _ by? (write) 7.Older people _ well. (must, look a

9、fter),Was built,were taken,were used,was known,was born,was written,must be looked after,.将下列句子变为被动语态，每空一词。 We can finish the work in two days. The work _ _ _ in two days. 2. The children will sing an English song. An English song _ _ _ by the children. 3.They use knives for cutting things. Knives _ _ for cutting things. 4.Lucy sent me a New Year Card last week. A New Year Card _ _ _ her by me last week. 5.We clean the classroom every day. The classroom _ _ every day.,can be finished,will be sung,are used,was sent to,was cleaned,Homework: 根据你所掌握的材料写一个短文.介绍一个你认为最有用/最有趣/最的发明.,1.题目 The