新人教版必修五Unit1Reading课堂PPT

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1、Unit 1 Great scientistsUnit 1 Great scientists-By JoyceAlexander Bell electricity Thomas Edison the First telephoneWright Brothers the electric LampMadame Curie black holes in UniverseFranklin Theory of GravitySteven Hawking the First PlaneElbert Einstein RadiumIsaac Newton the Theory of RelativityS

2、cientists&Contributions:John Snow is a well-known doctor in the 19th century in London and he defeated“King Cholera”.It is a 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.Cholera:It begins in the stomach and

3、 a severe case can lead to death without immediate treatment.And the victims died very quickly from a loss of liquid after severe vomiting(呕吐呕吐)and diarrhoea(腹泻腹泻).?The causes of cholera?The correct or possible theory?Collect data on those where people were ill and died?Plot information on a map to

4、find out where people died or did not die?Analyse the water to see if that is the cause of the illness.?Find other evidences to confirm his conclusion?The advice of John Snow about how to solve the problemWhat causes cholera?Which theory is correct?Collect information on those who were ill or died a

5、nd where they got their waterMark information on a map to find out where people died or did not diedAnalyse 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.Careful Reading:Joh

6、n Snow was an doctor in London who _Queen Victoria as her personal .He thought about helping ordinary people _to cholera.Though the cause and the of it were unknown,he wanted to face the_ and solve the problem.expertattendedphysicianexposedcurechallengeCareful Reading:What were the two theories abou

7、t the cause of cholera?Which did John Snow want to prove?What was his method of doing the research?multiplied victimsabsorb The second one.To gather information in two particular streets.Careful Reading:What did he do with the results of his enquiry?What valuable clue did he get about the cause of t

8、he disease?What might be the cause?Marked on a mapMany of the deathshad no deaths.It seemed that the water was to blame for cholera.Many of the deaths were near the water pump in Broad Street.deathPart of Snows Cholera MapCareful Reading:Why did he tell people to remove the handle from the pump?What

9、 happened after the handle was removed?So that slowed downCareful Reading:Where did the woman live and what did she had delivered to her house every day?What did their deaths suggest?What measures did John Snow take to prevent the disease from spreading?Away from Broad StreetWater from the pumpThe p

10、olluted water carried the virus.suggested thatbe examinedwere instructed not to exposetodraw a conclusion Think of a method Collect results Make a questionFind a problem Analyse the results Find supporting evidenceStages in setting out a new scientific idea:DicussingRead the passage again and fill i

11、n 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 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.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing