英语：UNIT1 GREAT SCIENTISTS课件3（新人教版必修5）.ppt

1、John Snow Defeats“King Cholera”1.Which scientist discovered that objects in water are lifted up by a force that helps them float?B.ArchimedesC.Thomas EdisonA.Charles Darwin2.Who wrote a book explaining how animals and plants developed as the environment changed?A.Marie CurieC.Charles DarwinB.Gregor

2、Mendel3.Who invent the first steam engine?A.Thomas NewcomenC.Thomas EdisonB.Archimedes4.Who used peas to show how physical characteristics are passed from parents to their children.A.Thomas EdisonC.ArchimedesB.Gregor Mendel5.Who discovered radium?A.Marie CurieC.NewtonB.Zhang Heng6.Who invented the w

3、ay of giving electricity to everybody in large cities?A.Stephen Hawking C.Thomas EdisonB.Archimedes7.Who was the painter that studied dead bodies to improve his painting of people?A.Gregor MendelC.Marie CurieB.Leonardo da Vinci8.Who invented a lamp to keep miners safe underground?A.Sir Humphry Davy

4、C.FaradayB.Thomas Newcomen9.Who invented the earliest instrument to tell people where earthquakes happened?A.Charles DarwinC.WattB.Zhang Heng10.Who put forward a theory about black holes?A.Stephen HawkingC.CopernicusB.ArchimedesWhat impressed you most in 2003?Neither its cause,nor its cure was under

5、stood.Which person impress you most during the SARS?What other infectious diseases do you know?How do they spread from one person to another?Do you know anything about cholera?It was caused by drinking dirty water.It caused a lot of deaths in the old times in Europe.John SnowWho helped to defeat the

6、 disease?1 Why couldnt cholera be under control at first?2 Which theory did John Snow believe in?3 John Snow finally proved the theory by _.A.gathering information with the help of a map B.looking into the source of the water for Broad Street and Cambridge Street C.Separating those who suffered chol

7、era from those who didnt D.Both A and B1 Why couldnt the cholera be under control at first?2 Which theory did John Snow believe in?Neither its cause,nor its cure was understood.People absorbed cholera into their bodies with their meals.3 John Snow finally proved the theory by _.A.gathering informati

8、on with the help of a map B.looking into the source of the water for Broad Street and Cambridge Street C.separating those who suffered cholera from those who didnt D.both A and B1.Draw a conclusion:(得出结论)2.Think of a method:(找出研究方法)3.Collect results:(收集材料)4.Make up a question:(形成研究主题)5.Find a proble

9、m:(发现问题)6.Analyse results:(分析材料)7.Repeat if necessary:(必要时重新分析)5423671stages in examining a new scientific ideafill 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 conclusionSteps:What/H

10、ow?1.Find a problem2.Make up a question3.Think of a method4.collect resultsJohn Snow Defeats“King Cholera”What causes cholera?Which theory is correct?using a mapMark the deaths on the map12346.Repeat if necessary7.Make a conclusion5.Analyse resultsfind out the reasons for deathsFind other evidence t

11、o make sure the conclusionPolluted water carried the disease566 To prevent the cholera from spreading again,what did John Snow do?examine the source of all water supplies find new methods of dealing with polluted waternot expose people to the polluted waterThe structure of the text Part One (1)Intro

12、duction of John Snow and Cholera Part Two (2-6)How John Snow found the source of Cholera Part Three (7)Cholera was defeated at lastRead 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

13、cholera _ out,he began to gather information.He _ on a map where all the dead people had lived 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

14、polluted water be found.Finally,“King Cholera”was defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing (in 5 minutes)Retell 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

15、_ out,he began to gather information.He _ on a map where all the dead people had lived 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

16、 water be found.Finally,“King Cholera”was defeated.Para 1:Introduction of John Snow and CholeraPara 2:Two theoriesFind a Problem:What cause cholera?Make up a question:Which is right?Para 3:He gathered information to test the theory.Think of a method:Test two theories by marking on a mapPara 4:Study

17、of the map of the breakout in 1854Para 5:He looked into the source of the waterCollect the result:Mark the deathAnalyse the result:Reason for death and no deathPara 7:John Snow defeated King CholeraPara 6:Find out that cholera was spread by germs.Repeat if necessary:Find more evidence.Draw a conclusion:Cholera was spread by germs Polluted water carried choleraback