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1、Unit 1 Great Scientists,Reading,Scientists:,Alexander 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 Relativity,Scientists&
2、Contributions:,Archimedes(阿基米德),Warming up:,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,Ancient Greek(287-212BC),A mathematician,Charles Darwin,2.Who wrote a book explaining how animals and plants developed as the environment changed?,the Origin
3、 of Species,Warming up:,“father of modern biology”,Marie Curie,Warming up:,3.Who discovered radium?,4.Who invented the way of giving electricity to everybody I large cities?,Thomas Edison,Pre-reading:,infectious diseases:They can be spread to other people.They have an unknown cause.They are difficul
4、t to cure.They need public health care to solve them.,Pre-reading:,Skimming:,Who was the great scientist in the passage and what was the deadly disease of its day?,John Snow cholera,Cholera:It begins in the stomach and a severe case can lead to death without immediate treatment.And the victims died
5、very quickly from a loss of liquid after severe vomiting(呕吐)and diarrhoea(腹泻).,Careful Reading:,John 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 pro
6、blem.,para.1,expert,attended,physician,exposed,cure,challenge,Careful Reading:,What were the two theories about 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.,
7、para.2&3,Careful Reading:,para.4,What did he do with the results of his enquiry?What valuable clue did he get about the cause of the disease?What might be the cause?,Marked on a map,Many of the deathshad no deaths.,It seemed that the water was to blame for cholera.,Many of the deaths were near the w
8、ater pump in Broad Street.,Part of Snows Cholera Map,Careful Reading:,para.5,Why did he tell people to remove the handle from the pump?What happened after the handle was removed?,So that,slowed down,Careful Reading:,para.6&7,Where did the woman live and what did she had delivered to her house every
9、day?What did their deaths suggest?What measures did John Snow take to prevent the disease from spreading?,Away from Broad StreetWater from the pump,The polluted water carried the virus,.suggested thatbe examinedwere instructed not to exposeto,Find the main idea of each paragraph:The causes of choler
10、aThe correct or possible theoryCollect data on those where people were ill and died and where they got their waterPlot information on a map to find out where people died or did not dieAnalyse the water to see if that is the cause of the illness.Find other evidences to confirm his conclusionThe pollu
11、ted dirty source of drinking water was to blame for the cause of the London cholera.,Careful Reading:,draw a conclusion Think of a method Collect results Make a questionFind a problem Analyse the results Find supporting evidence,Stages in setting out a new scientific idea:,Dicussing,Find more information about cholera and John Snow on the Internet.,Homework:,
