theproblemofthesnakeswarmingupandreading模块八PPT课件

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1、Unit 3第1页/共59页Discuss in pairs which pictures show inventions and which show discoveries. An amphibious carStephensons “Rocket”DNA第2页/共59页 What are the important inventions of the 20th century? Which do you think is the most important one?第3页/共59页 Thomas Edison invented the electric bulb.第4页/共59页Did

2、 Edison invent electricity? Can electricity be invented? Is electricity an invention or discovery? Why? 第5页/共59页2. Which of this pictures show inventions? Does any of them show discoveries?第6页/共59页Stephensons “Rocket”第7页/共59页George Stephenson was one of the first men to design engines for the railwa

3、ys which were new at that time. One of the first tracks to be laid was between Stockton and Darlington. Stephenson was one of the first railway engineers and in 1825 he drove the first train along the line.第8页/共59页An amphibious car第9页/共59页This is the first car that can travel safely on water and on

4、land. When moving on water, the wheels of the car turn sideways and move into the body. The underneath of the car is strong enough to sail as a boat. It is a prototype and is not yet being produced for sale. This is an interesting modern invention.第10页/共59页DNA第11页/共59页This was a discovery of Francis

5、 Crick and James Watson and published in 1953. These two scientists were the first to show that our genes consist of two spirals of DNA (called the double-helix). This work led directly to the human genome project in 2003, which discovered the Structure of DNA.第12页/共59页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第1

6、3页/共59页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第14页/共59页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. 第15页/共59页(2) An invention

7、 is something that created by human being, such as the lighting rod. 第16页/共59页Give your examples of each category and fill in the blanks. Work out theconnections between them.第17页/共59页DiscoveriesInventions1. Electricity1. Systems of delivering electrical light and heating to homes and offices2. Hous

8、ehold machines for washing, ironing, keeping food cold, etc3. Computers, telephones, television, etc第18页/共59页DiscoveriesInventions2. The movement of air1. Airplane jet engines2. Air balloons, etcMachines to help people with serious disease (like kidney failure) 3. The circulation of the blood第19页/共5

9、9页DiscoveriesInventions4. X-rays1. Body scanners to see whether you are ill2. Machines to treat illnesses (like cancer)Discoveries often lead to inventions.第20页/共59页4. In pairs discuss any modern inventions you know. Describe them to your partner and explain how they changed peoples lives.第21页/共59页t

10、elevision 1923 colour television 1940第22页/共59页photocopier 1937air conditioner 1902第23页/共59页electronic digital computer 1942第24页/共59页Atomic bomb 1945第25页/共59页Credit cards 1950第26页/共59页Penicillin 1928第27页/共59页 Do you know the stages every inventor must go through before they can have their invention a

11、pproved? Inventing is a scientific activity and so follows similar stages to those used in research. Work out a suitable order.Pre-reading 第28页/共59页1. Applying for a patent2. Finding a problem 3. Doing research 4. Testing the solution 5. Thinking of a creative solution 6. Deciding on the invention 第

12、29页/共59页第30页/共59页ReadingThe problem of the snakes第31页/共59页第32页/共59页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 snakes第33页/共59页Part 2 (para.2)Doing some research about the habits of snakesPart 3(para.3)Deciding

13、 on the solution第34页/共59页Part 4(para.4-6)the attempts to catch the snakesPart 5(para.7-8)the requirements of getting a patent第35页/共59页I. Read the text carefully and fill in the blanks.Finding a problemSnakes came near my mothers house now and then and she wanted me to get rid of them without _ them.

14、Doing researchI set out to research the _ of snakes to find the easiest way to trap them.harminghabits第36页/共59页Thinking of a creative solutionThree possible approaches: removing the snakes_ attracting the snakes into a _ using male or female perfume or food _ the snakes so that they would become sle

15、epy and could be easily caughtI decided to use the _ approach. habitattrapcoolinglast /third第37页/共59页Testing the solutionThree attempts: putting the frozen bowl over the snakes habitat early in the morning putting the frozen bowl over the snakes habitat _ putting the frozen bowl over the snakes habi

16、tat in the evening and carrying a small _ to collect them the next morningThe third attempt was a success.in the eveningnet第38页/共59页Applying for a_ The patent office makes a search to check that your product really is _ from everyone elses. Patent examiners examine whether your claim is _ or not. Yo

17、ur application for a patent will be published _ months from the date you apply if your claim passes all the tests.patentdifferentvalid18第39页/共59页1. 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 p

18、lace. C. placing the snakes at a low temperature for them to sleep and then caught them. D. All the above. CII. Read the text carefully and choose the best answer.第40页/共59页2. The writer was successful to catch the snakes in _ attempt. A. the first B. the second C. the third D. everyC第41页/共59页3. The

19、following are used in the three attempts EXCEPT _. A. perfumeB. a bowlC. jelly D. ice-cubesA第42页/共59页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 de

20、pends on the heat around them. C第43页/共59页5. Which of the 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第44页/共59页6. The purpose in writing this text isA. to show us how to trap the snakes

21、 but not to kill themB. to tell people how to apply for a patent of the writers new ideaC. to introduce the writers new idea of trapping the snakes and her application for a patentD. to tell the readers how to get a new idea and make it a patent第45页/共59页7. The biggest advantage of the writers new id

22、ea is that:A. it makes the snakes move slowlyB. it makes the snakes hardly bite usC. it is easier for us to kill the snakes without hurting ourselvesD. it is easier for us to catch the snakes without killing them第46页/共59页8. Which statement is true according to the text?A. The snakes were so sleepy i

23、n the second attempt that they couldnt bite the writer at 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

24、proves to be valid, you can get a patent immediately.第47页/共59页The mother was upset because a family of snakes had made their home near the house.1). What was the mother upset about?III. Read and answer the questions.第48页/共59页The writer was happy because it gave her an opportunity to help her mother

25、and invent something to catch the snakes without hurting them at the same time.2). Why was the writer happy to help her mother?第49页/共59页3). What are the three creative steps that the writer takes to catch the snakes without hurting them?Step 1: She bought a stainless ice cream maker and froze the bo

26、wl. She added ice cubes to the top of the bowl to keep it cold. She placed it over the snakes habitat during the day so that the snakes would become sleepy and could be easily caught.第50页/共59页Step 2: As above she did the same but placed the bowls over the snakes habitat in the evening.Step 3: As abo

27、ve but added a net to catch the snakes.第51页/共59页4). 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. So extra

28、 cooling to the snake would make them even less active and easier to catch.第52页/共59页1. Whats the writing purpose of the writer?2. What should we learn from this text?第53页/共59页1. Whats the writing purpose of the writer?The writer wants to inform us of the scientific methods to solve present problems

29、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.第54页/共59页2. What should we learn from this text?We

30、can learn 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 and persistence to achieve his or her ambition in life.第55页/共59页In pairs look at the following problems. Choose one and use the scientific stages to design a new invention to solve it. Remember to include one change to your invention in case it doesnt work the first time.第56页/共59页第57页/共59页Homework Write a passage about how to apply for a patent?第58页/共59页感谢您的观看！第59页/共59页