高中英语Unit esson 3 scientific breakthroughs课件1 北师大版 选修7 课件VIP专享VIP免费

Lesson 3 Scientific Breakthroughs warm up : A little quiz Isaac Newton ， 1642-1727 ， British physical scientist 、astronomer and mathematician ，born in Lincolnshire.He proved the Theory of Gravity to be true. He was British who was living in 18th century. He invented an advanced steam engine which was the last straw of the First Industry Revolution in western countries. He was born in Scotland in 1847 . He immigrated into the USA at the age of 24 and later became a America citizen.He was the inventor of telephone. 贝尔 (Bell,Alexander Graham)（ 1847 ～1922 ） Among the several important discoveries made in his life, the greatest is the creation of his famous Theory of Relativity. He also discovered famous mathematical statement e=mc (energy equals mass times the speed of light squared).This statement or formula explained that a great amount of energy could come from a small piece of matter. Albert Einstein On December 17th, 1903, they made the world's first flight in a machine that was heavier than air and powered by an engine.Wright Brothers The designer of ENIAC, the first commercial computer made in the United StatesAmerican physicist John William Mauchly and J. Presper Eckert这是美国军方 (navy) 要求宾州大学莫奇来（ Mauchly ）博士和他的学生爱克特（ Eckert ）设计的，准备用来计算炮弹及火箭、导弹 (missiles) 的弹道，它最终在原子弹的研制中发挥了极大的作用。 Alexander Fleming(1881-1955)Scottish biochemistFebruary 14, 1929 --- Fleming Discovers Penicillin.Sir Alexander Fleming was a young bacteriologist when an accidental discovery led to one of the great developments of modern medicine. Edwin HubbleAmerican astronomer. He changed our ideas about the universe and how it developed. In the late Nineteen-Twenties, his s...