人教新课标 高中二年级 Book8 Unit3 云安县云安中学 李秋英

Genius is 1% inspiration and 99% perspiration. A Famous Saying ---Thomas Edison

Unit 3 Inventors and Inventions

Four Great Ancient Inventions Four Great Ancient Inventions Warming up 1 Talk about some inventions. Warming up 1 Talk about some inventions.

The compass was made by MaJun. It can help people, especially sailors, to identify the direction. It is very useful to the traffic at sea.

Paper-making was invented by CaiLun. Paper makes books easier to carry. The invention and application of paper- making played an important role in the record of social history.

gunpowder Gunpowder is used to make guns, rockets, bombs, beautiful fireworks and so on. It is widely used in science and technology.

Printing was created by BiSheng. Printing made it more convenient for people to record social history. It greatly promoted the spread of human civilization and development.

some great inventions created in the late 19th and the early 20th century. some great inventions created in the late 19th and the early 20th century.

telephone 1876

photocopier 1937 air conditioner 1902

credit cards 1950

Penicillin 1928

= Warming up 2 Distinguish a discovery from an invention.

Work out rules that can help you decide what a discovery is and what an invention is ? A discovery is _________________ ___________________________ _______________. An invention is _________________ ___________________________ __________________. Discoveries often lead to inventions. something that is created by human beings and doesn't exist before. finding out something already existing in nature but not yet known to people.

DiscoveriesInventions Electricity 1. Household machines for washing, ironing, keeping food cold, etc 2. Computers, telephones, television, etc

DiscoveriesInventions The movement of air 1. Airplane jet engines 2. Air balloons, etc X-rays 1.Body scanners to see whether you are ill 2. Machines to treat illnesses like cancer

Look at the pictures below and discuss in pairs which pictures show inventions and which show discoveries.

an amphibious car an invention This is the first car that can travel safely on water and on land.

Stephenson’s “Rocket” an invention It was designed by George Stephenson.

DNA a dicovery This was a discovery of Francis Crick and James Watson.

Warming up 3 In pairs make dialogues to discuss the following modern inventions (describe them to your partner and explain how they changed people's life today). Warming up 3 In pairs make dialogues to discuss the following modern inventions (describe them to your partner and explain how they changed people's life today).

Do you know the stages every inventor must go through before they can have their inventions approved? Here give you some similar stages used in research, please put them in the suitable order. Pre-reading

1. Applying for a patent 2. Finding a problem 3. Doing research 4. Testing the solution 5. Thinking of a creative solution 6. Deciding on the invention

Pair work How can you divide 13 oranges among 9 children fairly? Make the oranges into juice

Sum up what we learned in this lesson. 1. Learn to talk about ____________and ______________. 2. Learn what a ___________ is and what an ____________ is. 3. Learn the link between_____________and ____________. 4. Learn the ________ used in scientific research. 5. Through this lesson, we should learn to use the ___________ methods to solve the problem inventions discoveries discovery invention discoveries inventions stages scientific

Homework Homework 1. Use the scientific stages to design a new invention to solve the following problem: invention to solve the following problem: The ripe apples on your apple tree are The ripe apples on your apple tree are too high for you to reach. What can you too high for you to reach. What can you invent to pick the apples in comfort? invent to pick the apples in comfort? 2. Prepare Reading 1