unit 3 inventors and inventions reading课件

课件43张PPT。Unit 3Inventors and inventions 1.Do you know some famous inventors and their inventions? Try to make a list of them.Leading in What are the important inventions of the 20th century? Which do you think is the most important one?Warming upDiscussion:
Who was Edison? Do you know how many inventions he made? Can you mention some of them? Everybody knows he invented the electric bulb. A lamp can’t give light without electricity. Thomas Edison invented the electric bulb.Did Edison invent electricity? Can electricity be invented? Is electricity an invention or discovery? Why? 2. Which of this pictures show inventions? Does any of them show discoverers?Stephenson’s “Rocket”An amphibious carDNA伽利略的望远镜牛顿制造的反射望远镜X射线广泛用于医学领域谷腾堡发明的印刷机英国钟表匠阿克莱特发明的水力纺纱机3. Work out rules that will help you decide what is discovery and what is an invention?(1) A discovery is
A discovery merely makes known something that already exist in nature, such as the discovery on the New Continent by Columbia. (2) An invention is
something that created by human being, such as the lighting rod. 1. Electricity1. Systems of delivering electrical light and heating to homes and offices
2. Household machines for washing, ironing, keeping food cold, etc
3. Computers, telephones, television, etc2. The movement of air1. Airplane jet engines
2. Air balloons, etc Machines to help people with serious disease (like kidney failure) 3. The circulation of the blood4. X-raysBody scanners to see whether you are ill
2. Machines to treat illnesses (like cancer)4. Now in pairs discuss any modern inventions you know. Describe them to your partner and how useful they are in life today. Do you know the stages every inventor must go through before they can have their invention approved? Here give you some similar stages used in research, please out them in the suitable order.Pre-reading Applying for a patent
2. Finding a problem
3. Doing research
4. Testing the solution
5. Thinking of a creative solution
6. Deciding on the invention As you read the following passage, check the order you wrote above to see whether it follows the correct stages in producing an invention.Reading The text narrates the problem of the snakes and presents the procedures of catching them and applying for a patent, from which we have got a better understanding of how to do scientific researches and how to apply for aRead and answer the questions.1. What’s the main idea of the text?patent. After learning, we know that it usually costs some time and continuous efforts in order to solve some practical problems in a scientific way. The writer wants to inform us of the scientific methods to solve present problem so that we students can not only broaden the horizons but become more skilled in discovering and considering carefully the problems in daily life. 2. What’s the writing purpose of the writer?We are also encouraged by the writer to be creative and hardworking as well as thinking independently.Find a problemThe snakes must be removed but not harmedDo researchLook for methods of removal; the habits of snakes3. The stages in making an invention.Test the solution several times
Try three times to make it work efficiently Apply for a patentThis means the solution is recognizedThink of a creative solutionIdentify three possible approaches: choose one4. Divide the passage into several parts and find out the main idea for each paragraph.Part 1(para.1)the discovery of the problem of the snakesPart 2(para.2-3)the research on the approaches to solve the problemPart 3(para.4-6)the attempts to catch the snakesPart 4(para.7-8)the requirements of getting a patent5. What are the three creative steps that the writer takes to catch the snakes without hurting them?1) to put the frozen bowl over the snakes’ habitat in the morning.
2) to put the frozen bowl over the snakes’ habitat in the evening.3) to put the frozen bowl over the snakes’ habit in the evening and carry a net to collect the snakes without harming them the next morning.6. Why did cooling the snakes make them less active ?
The cooling made the snakes less active because they are reptiles and their body temperature depends on the heat around them.7. Discuss with your partner what the advantages might be of getting a patent.
You are able to prove that you were the first person to make the invention.
You are recognized as a real inventor.
You can make money if you sell your invention to others.1. The purpose in writing this text is
A. to show us how to trap the snakes but not to kill them
B. to tell people how to apply for a patent of the writer's new idea
C. to introduce the writer's new idea of trapping the snakes and her application for a patent
D. to tell the readers how to get a new idea and make it a patentComprehending.2. The biggest advantage of the writer's new idea is that:A. it makes the snakes move slowly
B. it makes the snakes hardly bite us
C. it is easier for us to kill the snakes without hurting ourselves
D. it is easier for us to catch the snakes without killing them3. What instruments were used for catching the snakes?A. a bowl, ice-cubes, male perfume
B. a bowl, a bucket, female perfume
C. a small net, ice-cubes, a bucket
D. a small net, a bucket, powders4. Which statement is true according to the text?A. The snakes were so sleepy in the second attempt that they couldn't bite the writer at all.
B. Your product must be different from everybody else's if you want to receive a patent.
C. The writer decided to send her invention to the patent office the moment she succeeded in catching the snakes.
D. If an application for your product proves to be valid, you can get a patent immediately.5. According to the text, which subject do you think can be given a patent?A. A new star discovered by a scientist.
B. A new novel written by Huo Da.
C. A new way to make dirty water clean.
D. A new kind of grass found in a mountain which can be used as a medicine.Homework Write a passage about how to apply for a patent?