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1、2022年高中英语 Unit3第1课时 The First Period Speaking教案 新人教版选修8Teaching goals 教学目标1. Target language目标语言重点词汇和短语discovery, application, evaluate, presentation, alternative, messenger, get together, make a case for, add up2. Ability goals能力目标Enable the students to talk about inventions and discoveries.3. Lear
2、ning ability goals 学能目标Help the students learn how to talk about inventions and discoveries.Teaching important & difficult points教学重难点How to talk about inventions and discoveries.Teaching methods教学方法Discussion.Teaching aids教具准备A puter and a projector. Teaching procedures & ways教学过程与方式Step Warming up
3、Talk about inventions and discoveries.T: The importance of inventions to social progress can never be changed. Each invention carries the world a step forward and provides stimulation for later ones. With inventions turning up all the time, our world is always taking on a new look. But do you know w
4、hat an invention is? S1: The creation of something new. S2: A creation (a new device or process) resulting from study and experimentation.S3: The creation of new things. Ask the students to talk about the pictures with the teachers help, and then discuss the first two questions. T: And what is a dis
5、covery? Whats the difference between a discovery and an invention? Now look at the pictures on page 1. Work in pairs and talk about the three different things, telling them apart and giving reasons.Show the following. 1. Which of these pictures show inventions? Does any of them show discoveries?2. W
6、ork out two rules that will help you decide what is a discovery and what is an invention? S1: I think the first two are inventions, i.e. the amphibious car and Stevensons “Rocket” while the last picture about the DNA is a kind of discovery. Because the first two products were quite new to people at
7、that time and no one had ever seen or designed such kind of vehicles before though some others had made similar cars or machines which had less functions and advantages as these two. I think the picture about the DNA is a kind of scientific discovery in biology because such cells and their structure
8、 do exist in living creatures and they have been found out by a certain scientist and are made known to the public nowadays. So I think a discovery is something existing before but unknown while an invention is something unknown and not existing before.S2: I think the first two pictures show us grea
9、t human inventions about the transportation because they were invented by people for certain purposes and they had special advantages and could satisfy peoples needs in some ways. On the other hand the third picture showing the formation of DNA is a kind of discovery because these special cells exis
10、t and function in the body of life all the time no matter who discovers it or when and where it is discovered. In my opinion a discovery is something found out or brought to view now but it was unknown before while an invention is something created or designed by people , which is pletely new not on
11、ly now but in the past.T: Well, from these pictures we can see that there lies differences between a discovery and an invention. There are certain rules or questions you should pay attention to while distinguishing them. Did it exist in the past? Is it created or developed by people? An invention is
12、 something that is created by a human being, such as the lightning rod. To the contrary, a discovery merely makes known something that already existed in nature, such as the discovery on the New Continent by Columbia. OK. Lets go on with some other questions of this part. You may talk with your part
13、ner first before we have a check five minutes later. Show the following. What modern inventions do you know? Describe them to your partner and how useful they are in life today.S1: Adidas 1 is the thinking shoes with a built-in microprocessor that decides how soft or firm the wearer needs the suppor
14、t. It has been chosen by Popular Science magazine as the best recreation invention of xx. It is very fortable to wear it all day without worrying about your toes being hurt and you can adjust the height and stiffness according to your demands whenever you want and wherever you go. Thus it is a very
15、practical choice for both the young and the old when having exciting sports outdoors or resting at home during holidays. S2: Camera phones have opened up a new way to municate. Because many of them look like regular cell phones, you can snap pictures as discreetly as any spy and, with the push of a
16、few buttons, pop them into an e-mail or upload them to the Web in less than a minute. No wires or puter hookups necessary. To be sure, most camera phones end up taking pictures of friends, family, babies and pets. But they have also been used to snap pictures of VIPs at private parties, copy recipes from cookbooks at bookstores and even document crimes in progress. But with an estimated 80 million camera phones so
