Unit 6 Section A 2a～2d课件- 2024-2025学年人教版英语九年级全册

Section A 2a-2d Unit 6 When was it invented? objectives 1.To listen and talk about the important inventions and their history, using passive voice 1. --When was … invented? --I think it was invented in… 2. I think … is invented before/after… 2. To listen and talk about what inventions are used for using passive voice What is/are … used for? It is/they are used for... A: What is it used for ? B: It is used for making dumplings . be used for doing被用来做某事 A: What is it used for ? B: It is used for carrying things . A: What is it used for ? B: It is used for cutting apples. A: What are they used for ? B: They are used for cleaning. A: What are they used for ? B: They are used for reading in the dark. B: They are used for sleeping in the office. 单词展示 n. 勺；铲子 scoop n. 高兴；愉快 pleasure n. 拉链；拉锁 zipper 生成新知 Do you know them? When were they invented? Who were they invented by? Talk about the inventions(发明). Which one do you think is the most helpful in our daily life? calculator car cell phone radio Make conversations using the information in 2b. 2c What are the shoes with lights used for? They’re used for seeing in the dark. What are hot ice-cream scoops used for? They’re used for serving for really cold ice-cream. Invention Time Usage (用途) lights 1830 giving light cameras 1837 taking pictures bikes 1839 riding basketballs 1861 Playing planes 1903 traveling computers 1976 getting information phones 1876 talking with people Groupwork A: When were the…. invented? B: They were invented in… A: What are they used for? B: They’re used for… zipper 拉链 Where can you see it? -- On trousers: shorts, jeans...； on clothes: dressers, shirts, jackets, blouses...； on bags: schoolbags, handbags...； on shoes... Lead in change the world? used wildly Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention? Roy: My pleasure! Let me think… hmm… I know! The zipper! Paul: The zipper? Is it really such 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! 2d Role-play the conversation. Paul: Well, you do seem to have a point… Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasn’t used widely. Paul: Really? So when did it become popular? Roy: Around 1917. 15 Who invented the zipper? The zipper was invented by Whitcomb Judson. 2. When was the zipper invented? It was invented in 1893. 3. When was it first used widely? It was first used widely in around 1917. Read the dialogue in 2d, then answer the questions below. The zipper is one of the small inventions that changes the world. It ___________ in our daily lives. You can see zippers almost everywhere. The zipper _____ ___________Whitcomb Judson in 1893. But at that time, it ___________ widely. In around 1917, it became popular. Fill in the blanks according to the conversation. is often used invented by wasn’t used was Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world”. Can you help me think of an invention? Roy: With pleasure! Let me think ... hmm... I know! The zipper! Paul: The zipper? Is it really such 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 have a point... Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasn't used widely. Paul: Really? So when did it become popular? Roy: Around 1917. 先驱 (列)清单 1. Who invented the zipper? 2. When was the zipper invented? 3. When was zipper used widely? 项目 网站 Answer the following questions. 1. Who invented the zipper? It was invented by Whitcomb Judson. 2. When was the zipper invented? It was invented in 1893. 3. When was it used widely? Around 1917. 问题探究 ▲ 辨析invent/discover/find/find out ① invent意为“发明；创造”，主要指通过想象、研究、劳动等创造出前所未有的东西，尤指科技上的创造发明。 ② discover指发现或偶然发现本身就存在但未被认识的事物。 ③ find强调找的结果，即“找到”，通常指偶然发现。 ④ find out指经过观察、调查，把某事物查出来，意为“搞清楚；弄明白”。 invent. invention. inventor 辨析 1. As far as I know, the robot that can help people clean the floor _________ (invent) in the 1980. 2. Bell is a ________ (invent) . 3. There are many ________ (invent) in the history museum. was invented inventor inventions {be used for be used by be used as be used to doing sth used to do sth 辨析 } I hear your grandpa has an old cup in your home. Yes, it _______ drinking tea long ago and my grandpa ________ drink tea with it when he was young. A. was used to, was used to B. used for, used to C. was used for , used to 2.This machine is used _____ workers. 3.English is used ________ the second language in China. 4. I ________ get up late, but now I ____________ getting up early. C by as used to am used to 中考链接 1.I hear your grandpa has an old cup in your home. Yes. It________ drinking tea long ago and my grandpa________ drink tea with it when he was young A. was used to ; was used to B. used for ; used to C. was used for ; was used to D. was used for ; used to 2. The mobile phone has influenced people`s life a lot since it ________ . A. invents B. invented C. is invented D. was invented 3. Ann ________ to the party. She had a wonderful time with us. A. invites B. is invited C. was invited D. has invited D D C 4. When Tim ________ why he was late for school, he just kept silent. A. was asked B. asked C. was asking D. is asked 5. —Why did Tom go to bed so late yesterday ? –Because his homework ________ on time. A. didn`t finish B. finish C. wasn`t finished 6. Look at our new school. It________ last year. A. built B. was built C.is built D. will be built 7. 这些发明是用在黑暗中照明的。 These inventions _______________ seeing in the dark . A C B are used for 随堂练习 Ⅰ.根据句意及汉语提示完成句子。 1．I like the color of this coat but I don't like its ____(款式)． 2．It's my great ________(高兴) to have a talk with you. 3．The little inventions have helped me a lot in my ____(日常的) life. 4．Julia introduced a good _______(网站) to me to learn English. 5．My mother always _____(列清单) all things that she wants to buy before shopping. style pleasure daily website lists 1. The personal computer was invented in 1976. (对划线部分提问) ______ ______the personal computer ________? 2. The shoes with lights were invented by Julie Thompson. (对划线部分提问) _____ ______the shoes with lights _______ _____? When was invented Who were invented by Ⅱ.句型转换 3. Knives are used for cutting things. (对划线部分提问) _______ _______ knives _______ _______? 4. A Chinese named Cai Lun invented paper. (改为被动语态) Paper _____ _______ ___ a Chinese named Cai Lun. What are used for was invented by $$