He wrote The Origin of Species. It explained how animals and plants developed as the environment changed. Charles Darwin
He improved the first steam pump built by Thomas Savery and turned it into a steam engine for taking water out of mines. Later James Watt turned it into the first modern steam engine used on the railways.
What infectious diseases do you know about?
foot-andmouth
How to prevent infectious diseases?
• Wash your hands often, especially during cold and flu season. • Be aware of what you eat, and be careful how you prepare it. • Use antibiotics exactly as prescribed. • Be cautious around all wild and domestic animals that are not familiar to you. • Avoid areas of insect infestation.
高中人教版必修5
英语
全册精品课件
Unit 1 Great scientists
Warming up and reading
The work of scientists makes life
much easier andБайду номын сангаасmore comfortable.
They make great contribution to
Leonardo da Vinci
He developed a safety lamp for miners in 1815. It made working conditions underground much safer.
Sir Humphry Davy
Zhang Heng
He invented the first seismograph to indicate the direction of an earthquake.
social development.
Do you know their names?
Let’s learn about some scientists. Archimedes He was an ancient Greek mathematician. He found if you put an object into water, the water pushes it up.
Stephen Harking
He put forward a theory about black holes.
father of optical fibers
winning the Nobel Prize in Physics on October 6, 2009
Gao Kun
What qualities do you think these scientists have in common?
modest devoted hardworking prudent wise
steadfast
conscientious
How do the scientists usually do scientific research? The process
Find a problem Make a question Think of a method
What do you know about cholera?
Cholera is the illness caused by a
THINK
WORK
Collect results
Analyse the results
FIND
Find supporting evidence
Draw a conclusion
SOLVE
An infectious disease is a disease caused by bacterial, viral, fungal, or protozoan infection. Though some infectious diseases don’t spread, others may be transmitted from animal to person (bird flu and cat scratch disease) or from person to person (MRSA, HIV, and other STDs).
Marie Curie
He invented the way of giving
electricity to everybody in large cities. Thomas Edison
He was a famous artist. He used to study dead people in order to make his paintings as accurate as possible.
Thomas Newcomen
He used peas to show how physical characteristics are passed from parents to their children. Gregory Mendel
She discovered radium in 1898. She received two Nobel Prizes, one for physics and one for chemistry.