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視頻課題：人教版選修8 Unit 3 Unit3 Inventors and Inventions Warming up Pre-reading Speaking重慶
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人教版選修8 Unit 3 Unit3 Inventors and Inventions Warming up Pre-reading Speaking重慶市墊江第一中學校
Unit3 Inventors and Inventions Warming up& Pre-reading & Speaking
Teaching goals 1. Target language ：
distinguish, product, patent, practical, powder, amphibious, merciful 2. Ability goals
Enable the students to talk about inventions and distinguish discovery and invention, also help the students understand the basic procedures of an invention. Help the students improve their speaking and inspire their creativities. 3. Learning ability goals
Cultivate the students’ motivation in invention. Teaching important & difficult points How to distinguish inventions and discoveries. Teaching methods
Task-based Language Teaching. Teaching aids
A computer and a projector. Teaching procedures & ways Step I Warming up
Talk about inventions and discoveries.
Show some pictures about phones, ask the students who will they think about when they first saw these pictures. Ss: Bell T:why?
Ss: because he invented it.
T:yes,so telephone is a great invention. What about this one. Ss: Newton. Gravity.
T: Does gravity a great invention? Ss: No T: Why?
Ss: Because it’s a discovery.
T: Now look at the pictures on page 19. Work in pairs and talk about the three different things, tell me Which of these pictures show inventions or whether there are any discoveries. And 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 Stevenson’s “Rocket” while the last picture about the DNA is a kind of discovery. Because 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 discovery 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 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 people’s 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 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 created or designed by people, which is completely 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? 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. Let’s go on with some other questions of this part. You may talk with your partner first before we have a check five minutes later. Step II Talking
T: 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 support. It has been chosen by Popular Science magazine as the best recreation invention of 2004. It is very comfortable 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 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 communicate. Because many of
them look like regular cell phones, you can snap pictures 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 to the Web in less than a minute. No wires or computer 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 sold in 2003, 6 million in the U. S. alone− the cat may already be out of the camera bag. Like it or not, these camera phones have been very popular and widely used by people even today.
S3: A kind of robot heart called AbioCor was invented in 2001. On July 2, 2001, the 59-year-old grandfather and retired librarian Robert Tools became the first human to get one. It’s been long since the operation, and Tools’ new heart is still beating. He can walk a city block without stopping and he’s 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 that all of you have known so many modern inventions both at home and abroad and you have thought a lot about them. It’s certain that modern discoveries and inventions do have great effects in people’s life and can always represent the advanced science and technology, so you should to distinguish them and make good use of them. StepⅢBrainstorm
T: Do you know the stages every inventor must go through before they can have their invention approved? Inventing is a scientific activity and so follows similar stages to those used in scientific research. Look at the list and work out a suitable order. Applying for a patent Finding a problem
Doing research Testing the solution
Thinking of a creative solution Deciding on the invention
S1: The first stage is finding a problem, later doing a research, then thinking of a creative solution. The fourth stage is testing the solution, while the fifth stage is deciding on the invention. The last stage is applying for a patent.
T: ok, good. These six stages are the main procedures of making an invention. Which step do you think is the most important one in making an invention?
S1: I think finding a problem is the most important one because the first step is always a key point.
S2: I don’t agree with him. I think thinking of a creative solution is the most important step. There are always a lot of problems turning up in our daily life, but we don’t know how to deal with them in a creative way, so I think the hardest part is the most important one.
T: yes, I think the third steps do a great job in making an invention, our country encourage all the citizen to thinking of more creative ways to solve problem. StepⅣpre-reading
T: look at the following blank, suppose you are facing with a big problem that there
were several snakes in your bedroom. What will you do? Discuss with your partners and find out more creative ways to solve this problem. Pay attention to finding some merciful ways.
S1: make some special powder which would make these snakes fall asleep quickly. S2: To create a pair of special gloves which can forbid these snakes biting me and sliding away from my hands. S3:…… S4:…… Step V Review
T: let’s look at the blackboard and have a review of what we have learned this class. First, read these new words together. Ss:……
T: Pay attention to the difference between discovery and invention. Discovery means something which already existed in the world, invention means creating something new.
T: What are the right six stages of making an invention.
Ss: Finding a problem；Doing research；Thinking of a creative solution；Testing the solution；Deciding on the invention；Applying for a patent
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. You should be more creative in your future study and daily life. Step V Homework
Ask the students to do the following. 1. Do the project on page 69.
2. Finish the exercise 1、2、3 on page23. 3. Prepare for the reading part on page 20.
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