Unit6 When was it invented？ SectionA Grammar Focus-4c课件 2023-2024学年人教版九年级英语全册

Unit 6 When was it invented? Grammar Focus-4c 1 the light bulb It was invented by Thomas Edison. Who was the light bulb invented by ? 自学反馈 We bought some books. 主动句与被动句之间的转换 Some books were bought ( by us ) 主语 谓语动词主动语态的过去式 宾语 主语 谓语动词被动语态的过去分词 介词+ 宾语 The important thing in life is to have a great aim, and the determination to attain it 3 自学反馈 过去式被动语态的几种句型 1. 肯定句 主语 + be + 过去分词 + (by…) A sweet song was sung by her on the stage. 2 否定句 主语 + be + not +过去分词 + (by…) 3 一般疑问句 Be + 主语 +过去分词 + (by…)? A sweet song wasn’t sung by her on the stage. Was a sweet song sung by her on the stage? 4 特殊疑问句 疑问词 + be + 主语 +过去分词 + (by…)? Where was a sweet song sung by her? The important thing in life is to have a great aim, and the determination to attain it 4 【例题】请判断下列结构是否为被动语态的谓语结构。 1. are done A. 是 B. 不是 【巩固】 2. were doing A. 是 B. 不是 3. is done A. 是 B. 不是 4. are doing A. 是 B. 不是 5. has studied A. 是 B. 不是 A B A B B The important thing in life is to have a great aim, and the determination to attain it Grammar Focus 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. The important thing in life is to have a great aim, and the determination to attain it Grammar Focus What did you find out? 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-cre