必修五Unit1reading英语课件.ppt

John Snow was a very expert doctor in London. He thought about ordinary people________ to cholera. There were two theories he became interested in. One is that cholera_________in the air, the other is that people __________ this disease into their bodies with their meals. John Snow __________ that the second theory was correct, and he determined to find out why. First, he marked on a map which gave him a valuable clue that many of the deaths were near the water pump in Broad street. It seemed that the water _____________ (blame). Next, John Snow___________the source of the water and found that it came from the river polluted by the dirty water from London. After that , he found supporting _________ from two deaths. Then he was able to __________with certainty that________ water carried the virus. * * * Who are they? Guessing Who is he? He has made a famous kite experiment. He learned a lot from it and invented lightning rod(避雷针). He is … Benjamin Franklin Never leave that until tomorrow, which you can do today. 今日事,今日毕. Who is he? He is called the greatest scientist in the 20th century. He is famous for the Theory of Relativity(相对论). He is … Albert Einstein Imagination is more important than knowledge Who is he? He invented electric bulbs(电灯). He made more than 1,000 inventions during his life. He is … Thomas Edison Thomas Alva Edison Genius is one percent inspiration and ninety-nine percent perspiration. 天才就是百分之九十九的汗水加上百分之一的灵感. Who is she? She is a woman scientist. She discovered radium(镭)and polonium(钋). In her life, she won the Nobel Prize twice. She is … Marie Curie Nothing in life is to be feared. It is only to be understood. 生活中没有什么可怕的东西,只有需要理解的东西. Who is he? He made the first telescope(望远镜) in the world. He carried out a famous experiment on the top of the Leaning Tower of Pisa. He is … Galileo Galilei You cannot teach a man anything. You can only help him find it within himself. 你不可能把一切都教给一个人， 你只能帮助他从内心去发现（和了解）事