高二英语Unit1 Great scientist period2课件.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 Curie2021/8/11 星期三13.Who is the inventor of electric light bulb(电灯电灯)?Thomas Edison4.Who invented the earliest instrument to tell people where earthqua

2、kes happened?Zhang Heng2021/8/11 星期三25.Who is the father of super hybrid rice?Yuan Longping6.Do you know who defeated“King Cholera”?John Snow2021/8/11 星期三3John 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

3、kind 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.2021/8/11 星期三4Lets get to know how Dr.John Snow defeated“King Cholera”in 1854 in London in this reading passage:John Snow Defeats“King Cholera”2021/8/11 星期三5John

4、 Snow 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

5、conclusion:(得出结论得出结论)2021/8/11 星期三6John 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 conclusion2021/8/11 星期三7Steps:What/How?1.Find

6、a problem2.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 died2021/8/11

7、 星期三86.Repeat 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.2021/8/11 星期三9Read the passage again and finish Ex.1(Page

8、 3).(in 8 minutes)John Snow Defeats“King Cholera”2021/8/11 星期三10Scientific 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 c

9、holera outbreak to prove which theory was correct2021/8/11 星期三11The 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 th

10、e polluted water 2021/8/11 星期三12Read the passage again and fill in the blanks:John Snow was a well-known _ in London in the _ century.He wanted to find the _ of cholera in order to _ it.In 1854 when a cholera _ out,he began to gather information.He _ on a map where all the dead people had lived and

11、he found that many people who had drunk the dirty water from the _ died.So he decided that the polluted water carried cholera.He suggested that the _ of all water supply be _ and new methods of _ with polluted water be found.Finally,“King Cholera”was defeated.doctor19thcausedefeatbrokemarkedpumpsour

12、ceexamineddealing (in 5 minutes)2021/8/11 星期三13Retell the passage according to below:John Snow was a well-known _ in London in the _ century.He wanted to find the _ of cholera in order to _ it.In 1854 when a cholera _ out,he began to gather information.He _ on a map where all the dead people had liv

13、ed and he found that many people who had drunk the dirty water from the _ died.So he decided that the polluted water carried cholera.He suggested that the _ of all water supply be _ and new methods of _ with polluted water be found.Finally,“King Cholera”was defeated.2021/8/11 星期三142021/8/11 星期三152021/8/11 星期三16