Unit 6 第3课时 (Grammar Focus -4c)（教学课件）-【上好课】九年级英语全一册同步高效课堂（人教版）

Grammar Focus-4c 老师：XXX 班级：XXX Unit 6 When was it invented? Contents Lead-in 1 Grammar 2 Presentation 3 Exercises 4 Summary 5 Homework 6 Language goals 语言 能力 学习 能力 思维 品质 文化 意识 1.培养想象力，发挥想象力，鼓励学生观察事物。 2.面对难题，用积极的态度去解决，认识世界，改造世界。 1.掌握常用词汇及句型: fridge; low; somebody; all of a sudden等; 2.能够准确地将主动语态与 被动语态进行句式转换。 通过一般过去时主动语态与被动语态的对比，能总结出转换规律和结构, 并建立相关知识之间的联系。 1.正确理解和使用一般过去时被动语态结构； 2.理解并识别被动语态的特殊情况(双宾语、主动表被动等)。 1 2 3 4 0 1 Lead-in Find out the passive voice. 引导词 语序 时态 宾语从句 三要素 Lead-in Today, traffic was stopped by a zebra. It was almost hit by another car. Other animals were seen on the freeway, too. Lead-in Jerry is late for work again. what happened to him? 一般过去时态下的被动语态 was / were +动词的过去分词 You expect me to believe that you were delayed by a zebra? lt was talked about on the radio. It is thought that the animals escaped from the zoo. Lead-in Although Jerry tells the truth,what does the boss say? Try to tell the conversation between them. 一般过去时态下的被动语态 一般现在时的被动语态 am / are / is +动词的过去分词 Some animals escaped from the zoo. The animals were released from their cages by mistake. The animals were recaptured by the zoo and they were put back into their cages. Lead-in 一般过去时态下的被动语态 What does the radio say? 主动语态 Today,We’ll learn the passive voice of the past tense. 0 2 Grammar 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. Grammar Focus Focus on the two sentences. Alexander Graham Bell invented the telephone in 1876. Grammar Focus 主动变被动 1.主动语态变被动语态 The telephone was invented Alexander Graham Bell in 1876. 原宾语变被动的主语， 谓语动词由过去式变be+谓语动词的过去分词， 加之by引导 by 原主语变被