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1、Unit 1When was it invented?,Section A1a2d,Do you know what these inventions are?,Karl Benz,Do you know who these inventors are?,Alexander Bell,J. L. Baird,Can you match the inventions with the right inventors?,Karl Benz invented the first car in 1885.,The first car was invented (by Karl Benz) in 188
2、5.,The first telephone was invented (by Bell) in 1876.,Bell invented the first telephone in 1876.,Z x xk,The first television was invented (by J. L. Baird) in 1927.,J. L. Baird invented the first television in 1927.,Look at the things below. In what order do you think they were invented? Discuss the
3、m with your group. Then number them 1-4.,1a,2,3,1,4,I think the TV was invented before the car.,Well, I think the TV was invented after the car.,I think the telephone was invented before the computer.,Well, I agree with you.,Listening,Listen and match the inventions with the years.,1b,_ 1876_ 1885_
4、1927 _ 1971,d,a,c,b,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.,Practicing,1c,When was the telephone invented?,I think it was invented in 1876.,When was the car invented?,It was invented in 1885.,When
5、was the TV invented?,It was invented in 1927.,When was the computer invented?,It was invented in 1971.,heel n. 鞋跟; 足跟,Presentation,scoop n. 勺; 铲子,electricity n. 电; 电能,e.g. I like the style of the skirt. 我喜欢这条裙子的款式。,style n. 样式; 款式,Listening,Listen and number the inventions 1-3 in the order you hear
6、them.,2a,_ shoes with special heels_ shoes with lights_ hot ice-cream scoop, runs on electricity,1,3,2,Listen again and complete the chart.,2b,changing,serving,in the dark,The first invention is shoes with _. People always hit their toes on _ on the way to the bathroom at night. So people can use th
7、em for _ in the _.,Listen again and fill in the blanks.,something,seeing,dark,lights,The second invention is a special ice-cream _. It runs on _ and becomes hot. Its _ for serving really _ ice-cream.,scoop,electricity,used,cold,The last invention is shoes with special _. People can move the heels _
8、and _. You can _ the heels if you are going to a _ or _ them if you are just going out for _.,heels,down,up,raise,party,lower,shopping,Make conversations using the information in 2b.,What are the shoes with lights used for?,2c,Theyre used for seeing in the dark.,What are hot ice-cream scoop used for
9、?,Theyre used for serving for really cold ice-cream.,What are shoes with special heels used for?,Theyre used for changing the style of the shoes.,Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention?,Role-play the conversation
10、.,2d,My pleasure! Let me think hmm I know! The zipper!,Role-play,n. 项目; 工程,n. 高兴; 愉快,n. 拉链,The zipper? Is it really such a great invention?,Think about how often its used in our daily lives. You can see zippers on dresses, trousers, shoes, bags almost everywhere!,adj. 每日的；日常的,Well, you do seem to ha
11、ve a point,Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there.,n. 网站,n. 先锋; 先驱,v. 列表; 列清单 n. 名单; 清单,For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasnt used widely.,v. 提到; 说
12、到,Really? So when did it become popular?,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。,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
13、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 its 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
14、有关think的短语】 think of 指“考虑, 记忆, 记起” e.g. You think of everything! 你全都提到了。 I cant 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”。e.g. Please think over what I said. 请仔细考虑我说的话。 I want to think it over. 我想仔细考虑一下这件事。,think sth. out 指“想通, 想出, 熟思”。e.g. He thought out a new idea. 他想出了一个新主意。 That wants thinking out. 那件事需要仔细考虑。,Recite the conversation in 2d.,Homework,