,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,“,”,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,Unit 1 Great Scientists,Unit 1 Great Scientists,Try a quiz and rob the answers.,A photo of the highest IQ,Seventeen of the twenty-nine were or became Nobel Prize winners.,Try a quiz and rob the answers,1.Who wrote a book explaining how animals and,plants developed as the environment changed?,A.Marie Curie,C.Charles Darwin,B.Gregor Mendel,1.Who wrote a book explaining,2,.Who invented the way of giving electricity to,everybody in large cities?,A.Stephen Hawking,C.Thomas Edison,B.Archimedes,2.Who invented the way of giv,3,.Which scientist discovered that objects in water,are lifted up by a force that helps them float?,B.Archimedes,C.Thomas Edison,A.Charles Darwin,3.Which scientist discovered t,4,.Who invented the earliest instrument to tell people where earthquakes happened?,A.Charles Darwin,C.Watt,B.Zhang Heng,4.Who invented the earliest i,5,.Who put forward a theory about black holes?,A.Stephen Hawking,C.Copernicus,B.Archimedes,5.Who put forward a theory abo,6,.Who,bought a lot of salt for fear of,nuclear radiation,in 2011,?,A.,Scientists,B.,Ordinary people,6.Who bought a lot of salt for,Questions:,Why do you think people do something wrong or even foolish when meeting with such problems?,What you think scientists or experts might do when meeting such problems?,Ordinary people,Scientists,The key difference:Thinking.,Just follow others without thinking.,Think about the problem,and then they may do a research if necessary.,Questions:Ordinary peopleScien,John Snow Defeats “King Cholera”,A good way to think is to ask questions.,Who is John Snow?,Whats“King Cholera”,John Snow Defeats A good way t,Who is John Snow?,a famous doctor in London.,A famous doctor in London,Personal physician of Queen Victoria,Who is John Snow?a famous doc,Whats“King Cholera”,Cholera,is a,deadly and,infectious,d,isease,，,so its called“King Cholera”,.,Whats“King Cholera”Cholera,Look at the title and the picture and try to guess:,Whats the text about?,Its about,how,John Snow defeated the deadly disease,King Cholera.,Look at the title and the pict,Stage,Draw a conclusion,Think of a method,Collect results,Make a question,Find a problem,Analyse the results,Find supporting evidence,Here are the usual seven stages in doing a scientific research,can you put them in the right order?,Fast reading:,Read the story quickly and write down a headline before each paragraph using the seven stages.,Paragraph,StageDraw a conclusionThink of,Stage,Para 1,Para 2,Para 3,Para 4,Para 5,Para 6,Para 7,Fast reading:,Read the story quickly and write down a headline before each paragraph using the seven stages.,Find a problem,Make a question,Think of a method,Collect results,Analyse the results,Find supporting evidence,Draw a conclusion,Paragraph,StagePara 1Para 2Para 3Para 4P,Number these events in the order that they happened.,John Snow began to test,the,two theories.,An outbreak of cholera hit London in 1854,John Snow,mar,ked the deaths on a map.,He announced the water carried the disease.,John Snow investigated two streets where the outbreak was very severe.,King cholera was defeated.,He found that most of the deaths were near a water pump.,He had the handle removed from the water pump.,Right order:_,2,1,4,7,3,8,5,6,Number these events in the,Two theories:,An outbreak of cholera.Neither its cause nor its cure was understood.,1.Cholera multiplied in the air.,Para.1:Find a problem,Whats the challenge?,Whats the problem?,Para.2:Make a question,2.People absorbed the disease with meals.,Which theory is right?,Careful reading:,What cause,d,cholera?,Two theories:An outbreak of c,Para,3&,4:,Think of a method,&,Collect the results,What method did he use?,Whats the result?,He marked the deaths on a map.,Para 3&4:Think of a method&C,Broad Street,Many deaths happened here.,No death happened here.,Pub,Broad StreetMany deaths happen,Para,3&,4:,Think of a method,&,Collect the results,What method did he use?,Whats the result?,He marked the deaths on a map.,It seemed that the water was to blame.,Para 3&4:Think of a method&C,Para.5:Analyse the results,What happened to the water?,What did he ask people to do?,Polluted.,To,remove the handle from the pump.,Another result:,How was Cholera spread?,Cholera was spread by germs and not in a cloud of gas.,Para.5:Analyse the results W,Para.6&7:Find supporting evidence&Draw a conclusion,Whats the extra evidence?,Whats the conclusion?,What did he advise people to do to prevent the disease?,Two other deaths.,The polluted water caused cholera.,Suggested the source of all water supplies be examined.,Instructed the water companies not to expose people to the polluted water any more.,Para.6&7:Find supporting evi,John Snow was a famous _ in London and he wanted to help the ordinary people_ to cholera.There were two _ about the cause of cholera.John Snow _that the second one was