Unit3InventorsandinventionsP1Warmingup课件优质公开课人教选修8.ppt

1、Inventors Inventors and inventionsand inventionsUnit 3Unit 3ObjectiveTo learn the difference between a discovery and an invention.Do you know what are the four inventions in ancient China?What are they famous for?What are they famous for?NewtongravitydiscoveredBenjamin FranklinA lightning flash is e

2、lectricity.discoveredStephenson the traininventedradiumMadame CuriediscoveredZhang Heng the seismograph地动仪地动仪 inventedHow much do you know about the inventors and the inventions?Lets have a quiz.1._ isnt Thomas Edisons invention.A.The long-lasting,practical electric light bulbB.The phonograph(留声机留声机

3、)C.The practical,publicly demonstrated television system 2._ is called“Father of Car”.A.Rudolf Diesel B.Karl Benz C.Thomas Edison3._ is called“Father of Dynamite(炸药炸药)”.A.Alfred Nobel B.Albert Einstein C.Alexander Bell4.Marconi(马可尼马可尼)invented the _ in the world.A.TV B.long distance radio transmissi

4、on C.typewriter 5._ invented the first airplane.A.Wright Brothers B.Henry Ford C.Benjamin FranklinLook at the pictures.What inventions can you think of?1 How do people come up with ideas for new inventions?2 Are some people born creative?3 Is it possible to learn how to be creative?How can we be cre

5、ative?ThinkThinkCreative Education Hard-working Practical skills DeterminationPatience How to be a good inventor?What qualities do these successful people have?However hard it is,they never give up.Discussion NEVER GIVE UPI know youre going to make it.It may take time and hard work.You may become fr

6、ustrated,And at times youll feel like giving up.Sometimes you may even wonder If its really worth it.But I have confidence in you,And I know youll make it,if you try.Discuss in pairs which pictures below show inventions and which show discoveries.An amphibious carStephensons“Rocket”DNAAn amphibious

7、car(2003)This is the first car that can travel safely on water and on 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 mode

8、rn invention.Stephensons“Rocket”(1781-1848)George Stephenson was one of the first men to design engines for the railways 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

9、 train along the line.In 1829 came his triumph.The structure of DNAThis was a discovery of Francis 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

10、 project in 2003,which discovered the structure of DNA.an inventiona discoveryuniversal gravitationthe electric bulbCompare:an invention or a discovery An invention is _.A discovery is _ _ _.already existing in nature but not yetknownfinding out somethingnot existing before creating somethingWhats t

11、he connection between discovery and invention?Discoveries often lead to inventions.Work out two rules:Work out two rules:DiscoveriesInventions1 Electricity1 Systems of delivering electrical light and heating to homes and offices2 Household machines for washing,ironing,keeping food cold,etc3 Computer

12、s,telephones,television,etcHere are some examples.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 blood4 X-rays1 Body scanners to see whether you are ill2 Machines to treat ill

13、nesses(like cancer)In pairs discuss any modern inventions that you know.Describe them to your partner and explain how they changed peoples lives.What are the important inventions of the 20th century?Which do you think is the most important one?Year InventionInventor(s)1902Air conditionerWillis Carri

14、e 1903Gas-motored and manned planeWright brothers1910The first talking filmThomas Edison1923Television Logie Baird1928Penicillin Alexander Fleming 1937PhotocopierChester F.Carlson1940Colour television Peter Goldmark1942Electronic digital computerAmerican scientists 1945 Atomic bomb American scientis

15、ts1950 Credit cardsRalph Schneide1985 Windows OSMicrosoft Company1990 World Wide Web Tim Berners-LeeWhat are the inventions in the future?1.Electric shoesThe heel of these shoes is a machine that makes electricity with every step you take.You will never need to buy batteries again.Electric shoesRead

16、 the following descriptions.2.Inflatable bicycleYou will never have to worry about having your bike stolen again.If you use our inflatable bike,you can simply let the air out and put your bike in a bag.Inflatable bicycle3.Edible chopsticksNever throw away or wash chopsticks again.These chopsticks ar

17、e both delicious and environmentally friendly.Save trees and have a snack at the same time they come in five different flavours.Edible chopsticks 4.Nose-top computer Are you tired of carrying around a heavy laptop computer?Heres the solution:the new nose-top computer fits comfortably on your nose an

18、d weighs less than a pair of glasses.Use the keyboard vest when you want to type something.Nose-top computerDo 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

19、 research.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 Look at the list below and work out a suitable order.Patent office(专利局专利局)plays the role of deciding what is an invention and what is not.And only inventions can get patents and so be recognized and protected.patentsShare your story about an inventor and his invention with your partner.Homework1.Look up the new words and expressions of the Reading in the dictionary.2.Preview the Reading:THE PROBLEM OF THE SNAKESThanks！