1、Unit 3 Inventors and inventions,Reading,Discuss in pairs which pictures show inventions and which show discoveries.,An amphibious car,Stephensons “Rocket”,Warming up,DNA,Work out the rules that will help you decide what a discovery is and what an invention is.,(1) A discovery is A discovery merely m
2、akes known something that already exist in nature, such as the discovery on the New Continent by Columbia.,(2) An invention isAn invention is something that created by human being, such as the lighting rod.,What are the important inventions of the 20th century? Which do you think is the most importa
3、nt one?,Enjoy the movies.,Thomas Edison invented the electric bulb.,Did Edison invent electricity? Can electricity be invented? Is electricity an invention or discovery? Why?,Give your examples of each category and fill in the blanks. Work out the connections between them.,1. Electricity,1. Systems
4、of delivering electrical light and heating to homes and offices 2. Household machines for washing, ironing, keeping food cold, etc. 3. Computers, telephones, television, etc.,2. The movement of air,1. Airplane jet engines 2. Air balloons, etc,Machines to help people with serious disease (like kidney
5、 failure),3. The circulation of the blood,4. X-rays,Body scanners to see whether you are ill 2. Machines to treat illnesses (like cancer),Discoveries often lead to inventions.,In pairs discuss any modern inventions you know. Describe them to your partner and explain how they changed peoples lives.,t
6、elevision 1923,colour television 1940,photocopier 1937,air conditioner 1902,electronic digital computer 1946,Atomic bomb 1945,Credit cards 1950,Penicillin 1928,Do you know the stages every inventor must go through before they can have their invention approved? Inventing is a scientific activity and
7、so follows similar stages to those used in scientific research. Look at the following list and work out a 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,The problem of th
8、e snakes,Reading,Fast reading,The text is mainly about the authors experience in helping her mother get rid of the _ and applying for the _ for her invention.,snakes,patent,Read the text quickly and complete its main idea.,Divide the passage into several parts and find out the main idea for each par
9、agraph.,Part 1 (para.1),the discovery of the problem of the snakes,Part 2 (para.2),Doing some research about the habits of snakes,Part 3 (para.3),Deciding on the solution,Part 4 (para.4-6),the attempts to catch the snakes,Part 5 (para.7-8),the requirements of getting a patent,Read the text carefully
10、 and fill in the blanks.,harming,habits,Careful reading,habitat,trap,cooling,last /third,in the evening,net,patent,different,valid,18,How did the writer catch the snakes?A. using something the snakes were interested to attract them into a trap.B. taking their habitat to another place.C. placing the
11、snakes at a low temperature for them to sleep and then caught them.D. All the above.,C,Read the text carefully and choose the best answer.,2. The writer was successful to catch the snakes in _ attempt. A. the first B. the second C. the third D. every,C,3. The following are used in the three attempts
12、 EXCEPT _. A. perfume B. a bowl C. jelly D. ice-cubes,A,4. Why did cooling the snakes make them less active? A. Because snakes are warm-blooded animals. B. Because snakes like high temperature. C. Because snakes are reptiles and their body temperature depends on the heat around them.,C,5. Which of t
13、he following may get a patent according to the text?A. A computer programme. B. A new animal variety. C. A work of literature. D. A truly novel and useful invention.,D,6. 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 f
14、or a patent of the writers new idea C. to introduce the writers 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 patent,C,7. The biggest advantage of the writers new idea is that _.,A. it makes the snakes move slowly B. it ma
15、kes 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 them,D,8. Which statement is true according to the text?,A. The snakes were so sleepy in the second attempt that they couldnt bite the writer a
16、t all. B. Your product must be different from everybody elses 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.
17、,B,The mother was upset because a family of snakes had made their home near the house.,(1) What was the mother upset about?,Read and answer the questions.,The writer was happy because it gave her an opportunity to help her mother and invent something to catch the snakes without hurting them at the s
18、ame time.,(2) Why was the writer happy to help her mother?,(3) Why did cooling make the snakes less active?Snakes do not have a way of keeping warm in their bodies. They get warmth from the sun and become more active at this time. When the sun goes down at night they cool down and become less active
19、. So extra cooling to the snake would make them even less active and easier to catch.,Discussion,Whats the writing purpose of the writer?What should we learn from this text?,1. Whats the writing purpose of the writer?,The writer wants to inform us of the scientific methods to solve present problems
20、so that we students can not only broaden the horizons but become more skilled in discovering and considering carefully the problems in daily life. We are also encouraged by the writer to be creative and hardworking as well as thinking independently.,2. What should we learn from this text?,We can lea
21、rn from the text the way of doing scientific researches and how to apply for a patent. We can also learn that it takes an inventor great determination persistence to achieve his or her ambition in life.,Apply what we learn:,In pairs look at the following problems. Choose one and use the scientific s
22、tages to design a new invention to solve it. Remember to include one change to your invention in case it doesnt work the first time.,(This can be done after class.),Problem 1: the ripe apples on your apple tree are too high for you to reach. What can you invent to pick the apples in comfort? Problem
23、 2: You need to make a house but you only have strings, glue, fishing nets and many plastic bottles. How can you solve it?,Problem 3: You want to catch fish but not hurt them when you do so. Design a fishing rod that will solve this problem.,Write a passage about how to apply for a patent?,Homework,Thank you!,
