Unit 6 Section A Grammar Focus-4c 课件2023-2024学年人教版英语九年级全册

Unit 6 When was it invented? Section A (Grammar Focus~4C) Grammar telephone It is used for talking with people. What is the telephone used for? Lead-in telephone Alexanda Gram Bell It was invented in 1987. When was the telephone invented? Who was it invented by? The telephone was invented by Alexanda Gram Bell in 1987 It was invented by Alexanda Gram Bell. Lead-in The telephone is used for talking with people. The telephone was invented by Bell in 1987. Let’s observe 一般现在时的被动语态 一般过去时的被动语态 What are the differences? am/is/are +V过去分词 was/were +V过去分词 When was the zipper invented? It was invented in 1893. Who was it invented by? It was invented by Whitcomb Judson. When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries. What is the hot ice-cream scoop used for? It’s used for serving really cold ice-cream. Active Voice: Alexander Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876. 找出句子的一般过去时被动语态 Let’s observe 设计意图：Introducing the usage of passive voice with examples 操作建议：Let the students observe the characteristics of these sentences. Teachers and students summarize together. 5 电话是在1987年被贝尔发明的。 探究二：一般过去时的被动语态的句式结构 The telephone was invented by Bell in 1987. 肯定句 否定句 The telephone wasn’t invented by Bell in 1987. 一般疑问句 Was the telephone invented by Bell in 1987? Yes, it was./ No, it wasn’t. 特殊疑问句 Who was the telephone invented by ? 练习册P73 Exercises were destroyed Rewrite the sentences using the passive voice. 4a 1.They sold the fridge at a low price. ______________________________________________________ 2.Somebody stole my camera from my hotel room. ______________________________________________________ 3.Where did you take these photos? ______________________________________________________ 4.Our parents advised us not to go out alone. ______________________________________________________ 5.Different writers translated the book into differe