Unit1Greatscientists课件.ppt

Unit 1 Great Scientists Cholera: It begins in the stomach and a severe case can lead to death without immediate treatment. And the victims died very quickly from a loss of liquid after severe vomiting(呕吐) and diarrhoea(腹泻). ? The causes of cholera ? The correct or possible theory ? Collect data on those where people were ill and died ? Plot information on a map to find out where people died or did not die ? Analyse the water to see if that is the cause of the illness. ? Find other evidences to confirm his conclusion ? The advice of John Snow about how to solve the problem * * * Unit 1 Great scientists -----By Joyce Alexander Bell electricity Thomas Edison the First telephone Wright Brothers the electric Lamp Madame Curie black holes in Universe Franklin Theory of Gravity Steven Hawking the First Plane Elbert Einstein Radium Isaac Newton the Theory of Relativity Scientists Contributions: Do you know the great scientists? 1.Who invented the first modern steam engine? James Watt (瓦特) 2.Who discovered radium? Madame Curie 3. Who is the inventor of electric light bulb(电灯)? Thomas Edison 4.Who invented the earliest instrument to tell people where earthquakes happened? Zhang Heng 5.Who is the father of super hybrid rice? Yuan Longping 6. Do you know who defeated “King Cholera”? John Snow 1.Which scientist discovered that objects in water are lifted up by a force that helps them float? Archimedes (287-212 BC) an ancient Greek mathematicianphysicist) 2.Who wrote a book explaining how animals and plants developed as the environment changed? Charles Darwin (1808-1882) British author of The Origin of Species “father of modern biology” 7.Who was the painter that studied dead bodies to improve his painting of people? Last Supper Mona Lisa Leonardo da Vinci (1452-1519) Italian artist 8.Who invented a lamp to