MU Great scientists readingPPT课件

He put forward a theory about black holes.Stephen Harking第1页/共18页He has made a famous kite experiment.He learned a lot from it and invented lightning rod (避雷针避雷针).).Benjamin FranklinNever leave that until tomorrow, which you can do today.今日事今日事, ,今日毕。今日毕。第2页/共18页Who is he?Who is he?He is called the greatest scientist in the 20th century.He is famous for the Theoryof Relativity.Albert Einstein第3页/共18页Thomas Alva EdisonGenius is one percent inspiration and ninety-nine percent perspiration.天才就是百分之九十九的汗水加上天才就是百分之九十九的汗水加上百分之一的灵感。百分之一的灵感。Who invented the way of giving electricity to everybody in large cities?第4页/共18页The Inventions of Thomas Edison Phonograph (留声机)Lightbulb (电灯泡)Motion Pictures (电影)第5页/共18页draw a conclusionthink of a methodcollect resultsmake a questionfind a problemanalyse the resultsfind supporting evidencefind a problemmake a questionthink of a methodcollect resultsanalyse the resultsdraw a conclusionHow to prove a new idea in scientific research?find supporting evidence第6页/共18页What infectious diseases do you know about?第7页/共18页What other infectious diseases do you know?For example: When you eat some food that is not freshYou may feelMaybe you have got _.Cholera第8页/共18页What is Cholera? Cholera infects peoples intestines(肠), causing diarrhea(腹泻), vomiting(呕吐) and leg cramps(小腿抽筋). 第9页/共18页Reading John Snow defeats “king cholera”第10页/共18页Whats the main idea of the passage?A. John Snow was a well-known doctor in London.B.The cause of Cholera was polluted water.C. The source of all drinking water should be examined.D. How John Snow collected, analyzed data and found the cause of the disease and solved it .Fast reading第11页/共18页What is the problem?Cholera was the deadly disease of its day. Neither its cause nor its cure was understood.Whats the cause of cholera?第12页/共18页Make a question: two theories 1. Cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims.2. People absorbed it with their meals.第13页/共18页Collect and analyze the results.Broad StreetMany deaths happened here.No death happened here.The water from the pump was to blame.Public house第14页/共18页The water was from the riverwhich had been polluted bythe dirty water from London.Where did the water come from? 第15页/共18页Find supporting evidence: What extra evidence did he find? A woman and her daughter who lived far away but drank the water also died.Draw a conclusion with certaintyThe polluted water carried the virus.第16页/共18页The passage tells us that_ John Snow foundout the cause of cholera which was a deadly disease in London in the 19th century. With his great effort, the disease was finally defeated. 第17页/共18页感谢您的观看。第18页/共18页