英语 Unit 3 Inventors and inventions Warming up 新人教版选修8 .ppt

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1、 Unit 3 Inventors and inventionsWarming UpHow can you divide 13 apples among 9 children fairly?make apple juiceCreativityLets play a gameGuess what or who it is according to the description,make it as quick as possible.Look at the screen,the sentences will be presented one by one 1.Its made of plast

2、ics and metal.2.It looks like a small box.3.The invention can contact someone while you are on the move.1.The inventor is from America.2.He is one of the father of inventions.3.The inventor invented the bulb.1.It is a machine.3.The first one of it was as big as a room.2.You can do complicated counti

3、ng with it.4.It develops quickly nowadays.1.The inventor was born in Scotland but lived in America.2.He worked for the deaf people communication and education.3.He invented telephone.In groups,discuss the inventions you know and then make a list.The compassairplane 1903television 1923 colour televis

4、ion 1940photocopier 1937air conditioner 1902What are they famous for?Edison invented the electric bulb.But a lamp cant give light without electricity.Did Edison also invented electricity?Can electricity be invented?Is electricity an invention or discovery?Thinking=1 Look at the pictures below and di

5、scuss in pairs which pictures show inventions and which show discoveries.an amphibious carThis 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

6、is a prototype and is not yet being produced for sale.This is an interesting modern invention.Stephensons“Rocket”George Stephenson was one of the first men to design engines for the railways which were new at that time.It was a great invention.The structure of DNAThis was a discovery of Francis Cric

7、k 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.Work out the rules that will help you decide wha

8、t a discovery is and what an invention is.An invention is _.A discovery is _.existing in nature but not yet knownfinding out something alreadyby human beings not existing before something that was createdan inventiona discoveryuniversal gravitationthe electric bulbNow give some examples of discoveri

9、es and inventions.DiscoveriesInventionsElectricity1.Systems of delivering electrical light and heating to homes and offices2.Household machines for washing,ironing,keeping food cold,etc3.Computers,telephones,television,etcDiscoveriesInventionsThe movement of air1.Airplane jet engines2.Air balloons,e

10、tcMachines to help people with serious diseaseThe circulationof the blood X-rays1.Body scanners to see whether you are ill2.Machines to treat illnesses(like cancer)Free TalkNow think of modern inventions you are familiar with,discuss in groups and try to describe them.Find more information about the great Chinese inventions(printing,paper,the compass and gunpowder).Homework