高中英语 Unit3第1课时 The First Period Speaking教案 新人教版选修8.docx

1、高中英语 Unit3第1课时 The First Period Speaking教案 新人教版选修82019-2020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 st

2、udents to talk about inventions and discoveries.3. Learning 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 proj

3、ector. Teaching procedures & ways教学过程与方式Step Warming upTalk 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

4、world is always taking on a new look. But do you know what 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 the

5、n discuss the first two questions. T: And what is a discovery? 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

6、show inventions? Does any of them show discoveries?2. Work 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. Beca

7、use the first two products were quite new to people at 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 disc

8、overy in biology because such cells and their structure 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

9、 before.S2: I think the first two pictures show us great 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

10、is a kind of discovery because these special cells exist 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 crea

11、ted or designed by people , which is pletely new not only 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

12、? Is it created or developed by people? An invention is 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 ot

13、her questions of this part. You may talk with your partner 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 th

14、at decides how soft or firm the wearer needs the support. 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 wh

15、enever you want and wherever you go. Thus it is a very 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 pic

16、tures as discreetly as any spy and, with the push of a 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

17、 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 sold in xx, 6 million in the U.S. alonethe cat may already be out of the camera bag. Like it or not, these camera phones have been

18、 very popular and widely used by people even today.S3: A kind of robot heart called AbioCor was invented in xx. On July 2, xx, the 59-year-old grandfather and retired librarian Robert Tools became the first human to get one. Its been long since the operation, and Tools new heart is still beating. He

19、 can walk a city block without stopping and hes even making plans for the future. Though not everybody needs a new heart, hundreds of thousands eventually may. Nor will an artificial heart rid the world of sickness or poverty or terror. But sometimes it really helps.T: Very good! I am glad to see th

20、at all of you have known so many modern inventions both at home and abroad and you have thought a lot about them. Its certain that modern discoveries and inventions do have great effects on peoples life and can always represent the advanced science and technology, so you should learn to distinguish

21、them and make good use of them.Step TalkingT: Suppose you are working for a mobile pany. It is your job to suggest new ways of developing a mobile. In pairs discuss some new applications of a mobile. Make a list of the ones you like and that seem the most useful. Choose one you both like and think w

22、ill be popular with other people. Now work in groups of four to discuss the question. S1: I suggest the new applications of mobile should be: portable entertainment players, cameras, member-ship and loyalty cards, guidebooks, maps, tickets, watches, and devices for accessing everything from news to

23、corporate databases. Among them, we like the applications of devices for accessing everything from news to corporate databases. We both think they are useful and will soon be popular with others in the near future because the ability will enable a whole class of workers to rely less on their memory

24、and more on their panys and even worlds knowledge maintenance, sales, construction, transportation, taxicab drivers, and many other workers spend a great deal of time from offices. Thus, when they need information, they must either have it in their heads or stop what they are doing and make a phone

25、call.S2: I think the new mobiles can be developed better with 4G to listen to the radio, watch TV, play games, do shopping, chat on the QQ, surf the internet, control the electrical equipment at home in the distance, give off harmless rays and be used as puters with special operating systems which c

26、an do business, have fun and work as intelligent P4 puters. Among them, we like the new application of surfing the internet and doing shopping and we both think they are useful and will soon be popular among youngsters because it is very convenient for people to find various useful information whene

27、ver and wherever possible. As there are different kinds of goods to choose from online and its very funny and exciting to make choices and buy what we need at a reasonable price without going out and bargain with sellers in the markets. T: Very good. Now get together with another pair to discuss whe

28、ther your suggestion is a good one. Make a case for your idea. Let the other pair evaluate it. Then swap so that you evaluate their idea. Decide which idea you like better and prepare to explain it. Then present it to the class.S1: I think the first classmates expectation that the mobile phones can

29、do so much, maybe more than they can offer. The mobile phones usually have limited size and capacity. So I think it will take time before the mobiles are designed to meet his needs. S2: I think its practical and meaningful for the second classmate to develop the mobiles in that way. Though it has be

30、en used in some ways but we can do better because every day we have much information to look for and different types of things to do and the smart mobile can make it more convenient for us to achieve our goals in life.T: Now, Id like you to discuss in groups and try to tell the others about your ide

31、as and the others who act as the leaders of the pany may ask some questions for him or her to answer. Then Id like some of you to report your group work. Five minutes later.(L=Leader of the pany)S: I think the new mobiles can be developed better with 4G to watch TV and do shopping on the internet.L1

32、: Well, have you thought about the cost of this kind of new mobile which has a large capacity and such functions?S: Yes. Ill make a good survey of the international electronic markets in advance and try to reduce the cost as much as possible. L2: Are you sure of the security measures of using these mobiles, especially when they are used to shop on the internet?S: Sure. Ill keep the new mobiles designed so in order that they will give warning messages whenever there is misleading information or dishonesty in selling and buying things on the internet.L3: