Unit 6 Section A 第一课时.ppt

Section A (1a-2d) 学练优九年级英语（ RJ ） 教学课件 Unit 6 When was it invented? 学习目标 Key words: heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention, Key sentences: 1.—When was the telephone invented? — I think it was invented in 1876. 2.—What are they used for? —They are used for… Passive voice (past tense) What are the Four Great Inventions in ancient China? Do you know? Lead in Chinese four great ancient inventions compass gun powder printing Paper making Modern inventions calculator Talk about the inventions( 发明 ). Which one do you think is the most helpful in our daily life? computer car calculator laptop telephone cell phone radio A: I think the TV was invented before the car. B: Well, I think the TV was invented after the car. Talk about with your partner. A: I think the calculator was invented before the computer. B: Well, I think the calculator was invented after the computer. Talk about with your partner. Look at the things below. In what order do you think they were invented? Discuss them with your group. Then n umber them [1- 4 ] (1=first,4=last) 1 2 3 4 Presentation Listen and match the inventions with the years. a b c d When was the ...invented? 1876 1885 1927 1971 a c b d 1b Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again. When was the telephone invented? I think it was invented in 1876. 1c When was the car invented? It was invented in 1885. When was the TV invented? It was invented in 1927. When was the computer invented? It was invented in 1971. Listen and number the inventions[1-3] in the order you hear them. 3 1 2 ___ shoes with special heels ___ shoes with lights ___ hot ice-cream scoop runs on electricity 2a Invention What is it / are they used for? shoes with special heels ________ the style of the shoes shoes with lights seeing ___________ hot ice-cream scoop ________ really cold ice-cream Listen again and complete the chart. changing serving in the dark 2b Make conversations using the information in 2b. What are the shoes with lights used for? They’re used for seeing in the dark. 2c What are hot ice-cream scoop used for? They’re used for serving for really cold ice-cream. What are shoes with special heels used for? They’re used for changing the style of the shoes. Role-play the conversation. Read the passage quickly and answer the questions. What is the subject for their school project? 2. What kind of invention does Roy think of? Small inventions that changed the world. The zipper. 2d 3. Why does Roy think it is a great inven- tion? 4. Who and when was the zipper invented? 5. When did the zipper become popular? Because it is often used in our daily lives. Whitcomb Judson in 1893. Around 1917. 1. Well, you do seem to have a point… have a point 有道理 e.g. I admit (that) you have a point. 我承认你有理。 Language Points 2. They are used for seeing in the dark. be used for doing sth. 表示“被用来做某 事”。与 be used to do sth. 同义。表示用途、 目的。 e.g. This computer is used to control all the machines. 这台电脑是用来控制所有机 器的。 Do you know what this tool is used for ? 你知道这个工具是用来做什么的 ? 3. Think about how often it’s used in our daily lives. think about 表示“考虑，想起”。 e.g. He is thinking about travelling in the summer holidays. 他正在考虑暑假旅游的事。 She was thinking about her childhood days. 她正回想她的童年时期。 【 拓展 】 有关 think 的短语 think of 指“考虑 , 记忆 , 记起” I can’t think of his name at the moment. 我一时想不起他的名字。 think sth. over 指“仔细想 , 审慎思考 , 作进一步考虑” Please think over what I said. 请仔细考虑我说的话。 think sth. out 指“想通 , 想出 , 熟思” He thought out a new idea. 他想出了一个新主意。 1. 用所给单词的正确形式填空： When the telephone (invent) ? The computer can us do math problems (help). invented was help Exercises 3. In those day, the woman couldn't _______ (afford) a TV because they were really expensive. 4. A friend of (I) came to see me last week. 5. I think you need (take) a history class. afford mine to take 2. 单项选择 ( ) 1. The kind of cup is used _______ drinking. A. to B. as C. by D. for ( ) 2. My mother and my sister kept on talking, but my father ________ silent all the time. A. got B. kept C. turned D. looked D B ( )3.I think the short story ______by Lu Xun. A. is writing B. is written C. written D. was written ( )4. — Who _____ the electric light lamp_____? — Edison. A. was; invented B. is; invented C. was; invented by D. did; invented by D C Summary Talked about the invented time, inventors and the usage of some inventions. Used the Passive Voice (past tense) to talk about the history of some inventions. Homework Preview the passage in 3a. Look up some information about some famous inventions. Thank you! 更多精彩内容，微信扫描二维码获取 扫描二维码获取更多资源