新人教高中英语必修5Unit1 great scientist2(ppt).ppt
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1、Unit 1 Great ScientistsDo you know the great scientists?1.Who invented the first modern steam engine?James Watt (瓦特瓦特)2.Who discovered radium?Madame Curie2021/8/8 星期日13.Who is the inventor of electric light bulb(电灯电灯)?Thomas Edison4.Who invented the earliest instrument to tell people where earthquak
2、es happened?Zhang Heng2021/8/8 星期日25.Who is the father of super hybrid rice?Yuan Longping6.Do you know who defeated“King Cholera”?John Snow2021/8/8 星期日3John Snow is a well-known doctor in the 19th century in London and he defeated“King Cholera”.Do you know what kind of disease is cholera?It is a kin
3、d of terrible disease caused by drinking dirty water and it caused a lot of deaths in the old times and it was very difficult to defeat.2021/8/8 星期日4Lets get to know how Dr.John Snow defeated“King Cholera”in 1854 in London in this reading passage:John Snow Defeats“King Cholera”2021/8/8 星期日5John Snow
4、 Defeats“King Cholera”The passage is written as a report of an experiment and there are 7 steps:1.Find a problem:(发现问题发现问题)2.Make up a question:(形成研究主题形成研究主题)3.Think of a method:(找出研究方法找出研究方法)4.Collect results:(收集材料收集材料)5.Analyse results:(分析材料分析材料)6.Repeat if necessary:(必要时重新分析必要时重新分析)7.Draw a concl
5、usion:(得出结论得出结论)2021/8/8 星期日6John Snow Defeats“King Cholera”Read the passage and fill in this form:(in 15 minutes)Steps:What/How?1.Find a problem2.Make up a question3.Think of a method4.collect results5.Analyse results6.Repeat if necessary7.Make a conclusion2021/8/8 星期日7Steps:What/How?1.Find a probl
6、em2.Make up a question3.Think of a method4.collect resultsJohn Snow Defeats“King Cholera”What causes cholera?Which theory is correct?Collect information on those who were ill or died and where they got their waterMark information on a map to find out where people died or did not died2021/8/8 星期日86.R
7、epeat if necessary7.Make a conclusion5.Analyse resultsAnalyse the water to see if that is the cause of the illnessFind other evidence to make sure the conclusionThe water is to blame.The source of all drinking water should be examined.2021/8/8 星期日9Read the passage again and finish Ex.1(Page 3).(in 8
8、 minutes)John Snow Defeats“King Cholera”2021/8/8 星期日10Scientific Reportby John SnowThe problemThe causeIdea 1:Idea 2:The methodNobody knew the cause of the serious disease of choleraa strange cloud of gas found its victimspeople absorbed the disease with mealsCollect information from the cholera out
9、break to prove which theory was correct2021/8/8 星期日11The resultsIdea 1 or 2?Why?The conclusionHe found the cause of cholera was the polluted waterIdea 2.Because the information showed that the dirty water carried choleraHe defeated cholera by examining the water supply and dealing with the polluted
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