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