Unit 6 When was it invented Section A 2d-Grammar Focus课件2023-2024学年人教版九年级英语全册

Unit 6 When was it invented? Section A 2d-Grammar Focus Not For Jazz We have an old musical instrument. It is called a clavichord. It was made in Germany in 1681. Our clavichord is kept in the living-room. It has belonged to our family for a long time. The instrument was bought by my grandfather many years ago. Recently it was damaged by a visitor. She tried to play jazz on it! She struck the keys too hard and two of the strings were broken. My father was shocked. Now we are not allowed to touch it. It is being repaired by a friend of my father's. Lead-in What’s this? Zipper. n. 拉链 Where can you see it? Pants, trousers, bags, backpacks, dressers, shoes, suitcase, etc. 2d Listen and answer the questions. 1.What invention are they talking about? 2.When was the zipper invented? 3.And when did it get popular? 4.Who was the zipper invented by? The zipper. It was invented in 1893. Around 1917. It was invented by Whitcomb Judson. Read and try to recite the conversation in 3 minutes. Fill in the blanks. Paul : Hey Roy, the subject _my school project is “Small inventions _ changed the world”. Can you help me _ an invention? Roy:_. Let me think …hmm…I know! The zipper! Paul:The zipper? Is it really _a great invention? Roy: Think about how often it’s used in our daily lives. You can see zippers on dresses, trousers, shoes, bags…almost everywhere! Paul: Well, you do seem to _… for that think of My pleasure such have a point Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions_ there. For example, it mentioned that the zipper_ Whitcomb Judson in 1893. But at that time, it _ widely. Paul: Really? So when did it become popular? Roy: _1917. Were listed Was invented by Wasn’t used Around The simple past passive voice 一般过去时被动语态 一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作,与主动语态相比,被动语态中主语是谓语动作的执行者。 被动语态的构成: 助动词was/were+ (及物动词的) 过去分词 was (were) + done Grammar The passive voice. 被动语态 主动语态变被动语态的结构图: Bell invented the telephone in 1876. Th