课件33张PPT。Inventors and inventionsUnit 3人教版选修八 Unit3 Do you know what are the four inventions in ancient China?What are they famous for?NewtongravitydiscoveredBenjamin Franklinflash is electricity.discoveredStephenson the traininventedradiumMadame CuriediscoveredZhang Heng the seismograph
地动仪 inventedQuizHow much do you know about the inventors and the inventions?
Let’s have a quiz.1. ___ isn’t Thomas Edison’s invention. The Light
bulbB. The record
playerC. The
telephone2. George Stephenson made the first train using a steam engine in ___.
A. 1625
B. 1725
C. 18253. _____ is called “Father of Car”.
A. Rudolf Diesel
B. Karl Benz
C. Thomas Edison4. ___ is called “ Father of Dynamite (炸药)”. A. Alfred Nobel B. Albert Einstein C. Alexander Bell
5. Marconi (马可尼) invented the first ____ in the world. A. TV B. radio C. typewriter 6. ____ 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 creative?ThinkCreative
Education
Hard-working
Practical skills
Determination
Patience … How to be a good inventor?Discuss in pairs which pictures below show inventions and which show discoveries. An amphibious
carStephenson’s
“Rocket”DNAAn amphibious 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 modern invention.Stephenson’s “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 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 project in 2003, which discovered the structure of DNA.an inventiona discoveryuniversal gravitationthe electric bulbWhich of these pictures show
inventions? Does any of them show
discoveries?An invention is ____________________
________________. A discovery is_____________________
________________________________
______.already existing in nature but not yet
knownfinding out somethingnot existing before creating somethingWhat’s the connection between discovery and invention?Discoveries often lead to inventions.Work out two rules:1 Electricity1 Systems of delivering
electrical light and heating
to homes and offices
2 Household machines for
washing, ironing, keeping
food cold, etc
3 Computers, telephones,
television, etcHere are some examples.2 The movement of air1. Airplane jet engines
2. Air balloons, etc Machines to help people with serious disease (like kidney failure) 3 The circulation of the blood4 X-rays1 Body scanners to see
whether you are ill
2 Machines to treat
illnesses (like cancer) In pairs discuss any modern inventions that you know. Describe them to your partner and explain how they changed people's lives.television 1923 colour television 1940Do you know what these inventions are
and when they were invented?photocopier 1937air conditioner 1902If some snakes are in your yard, how do you deal with them?The problem of the snakesPart I (Para 1): the discovery of the problem of the snakes.the research on the approaches
to solve the problem.the attempts to catch the snakes.the requirements of getting a patent.Part II
(Paras 2-3):Part III (Paras4-6):Part IV (Paras7, 8):Fast ReadingHomework Look up the new words
and expressions of the
reading in the dictionary.
2. Preview the reading:
The Problem of the SnakesThank you.