(
课件网) Unit 6 When was it invented Section A (GF~4c) Talk about the following inventions using the patterns: A: When was it invented B: It was invented in1976. A: Who was it invented by B: It was invented by Steven. A: What is it used for B: It is used for ... Revision 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. Read the sentences. Grammar Focus Fill in the blanks according to grammar focus. 1. 拉链是什么时候被发明的？_____ _____ the zipper _____ 2. 它于1893年被发明。It _____ _____ in 1893. 3. 它是由谁发明的？ _____ _____ it invented _____ 4. 是由惠特科姆 贾得森发明的。It ____ _____ ___ Whitcomb Judson. 5. 茶叶什么时候被带到朝鲜的？_____ ____ tea _____ to Korea 6. 是在六到七世纪之间被带到朝鲜的。 It _____ _____ to Korea _____the 6th and 7th centuries. 7. 热冰淇淋勺用来做什么？What ___ the hot ice-cream scoop_____ ____ 8. 它用来盛很凉的冰淇淋。It’s _____ ____ _____ really cold ice-cream. 9. 贝尔于1876年发明了电话机。Alexander Graham Bell _____ the telephone in 1876. 10. 电话机在1876年被贝尔所发明。The telephone _____ _____ ___ Alexander Graham Bell in 1876. When was invented was invented Who was by was invented by When was brought was brought during is used for used for serving invented was invented by Practice 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. 探究语法规律 What did you find out 探究一：主动语态和被动语态的概念和转换 主动语态：主语Alexander Graham Bell是动作invent 的执行者。 主动语态 被动语态 被动语态：主语The telephone是动作invent 的承受着。 Alexander Graham Bell invented the telephone in 1876. The telephone was invented (by Alexander Graham Bell) in 1876. 主动语态 被动语态 主(执行者) 谓 宾(承受者) ① ② ③ 主(承受者) 谓 by(执行者) Grammar Focus 将下列句子改为被动语态 We planted trees last week. 主动语态变被动语态解题步骤 1. 找宾语 --即动作的承受者 2. 判断宾语的单复数 --即be动词的单复数. 3.把谓语改成was/were+V.过去分词 5. 修改原句的主语 --即by+ 主语/ 宾语. 宾变主,主变宾,前加by 动变被,看清be, 结构分别be+ pp Tree was planted by us. 4. 判断新主语的单复数:确定be动词的单复数 He washed his car yesterday. His car was washed (by him)yesterday. Did you clean up your room last night Was your room cleaned up last night He ... ...
