Unit 6 Section A Grammar Focus-4c课件2023-2024学年人教版九年级英语全册

Section A Grammar Focus-4c 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. 1. When was the zipper invented? C. It was invented in 1893. 2. Who was it invented by? D. It was invented by Whitcomb Judson. 3. When was tea brought to Korea? A. It was brought to Korea during the 6th and 7th centuries. 4. What is the hot ice- cream scoop used for? B. It’s used for serving really cold ice-cream. Match the questions with the answers. 被动语态 (Passive Voice) 结构: be + V-p.p. am / are / is +动词的过去分词 was / were +动词的过去分词 一般现在时的被动语态: 一般过去时的被动语态: Many people speak English. (主动语态) English is spoken by many people. The naughty boy broke the window yesterday. (主动语态) The window was broken ( by the naughty boy) yesterday. 5 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 主动句变为被动句所遵循的4个步骤： 1. 把原主动句中的宾语变为被动句的主语。 2. 把动词变为被动形式即be+过去分词，并注意其人称和数随主语的变化，而动词的时态则保持不变。 3. 原主动句的主语如需要则放在by后面以它的宾格形式出现（注代词的宾格），如不需要则可省略。 4. 其它的成分（定语、状语）不变。 过去式被动语态的几种句型 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…) 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? 特殊疑问句 疑问词 + be + 主语 +过去分词 + (by…)? Where was a sweet song sung by her? 2. 一般过去时的被动语态的基本用法 用 法 示 例 表示过去某一具体时间发生的动作，且句子的主语是谓语动词动作的承受者。 The house was built in 1990. 这所房子建于1990年。 讲述发生在过去的动作，且不知道动作的执行者。 He was honored with the