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

Tea Unit 6 When was it invented? Grammar Focus-4c 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 Tell something about how tea was invented by accident according to the mind map. New words fridge low somebody translate lock ring earthquake sudden all of a sudden bell biscuit cookie musical instrument n. 冰箱 adj. 低的；矮的 pron. 某人 n. 重要人物 v. 翻译 v. 锁上；锁住 n. 锁 v. (rang, rung) 发出钟声或铃声；打电话 n. 地震 adj. 突然(的) 突然；猛地 n. 钟(声)；铃(声) n. 饼干 n.曲奇饼 adj. 音乐的；有音乐天赋的 n. 器械；仪器；工具 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 Observe and discuss 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. 一般过去时的被动语态 一般过去时的被动语态表示过去某一时间的被动动作或过去经常性、习惯性的被动动作。其基本结构是：was/were +及物动词的过去分词。 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