Greatscientists-Reading课件(1).ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 1 Great scientists,-By Joyce,Alexander Bell electricity,Thomas Edison the First telephone,Wright Brothers the electric Lamp,Madame Curie black holes in Universe,Franklin Theory of Gravity,Steven Hawking the First Plane,Elbert Einstein Radium,Isaac Newton the Theory of Relativity,Scientists,&,Contributions:,Unit 1 Great Scientists,Do you know the great scientists?,1.Who invented the first modern steam engine?,James Watt,(,瓦特,),2.Who discovered radium?,Madame Curie,3.Who is the inventor of electric light bulb(,电灯,)?,Thomas Edison,4.Who invented the earliest instrument to tell people where earthquakes happened?,Zhang,Heng,5.Who is the father of super hybrid rice?,Yuan,Longping,6.Do you know who defeated“King Cholera”?,John Snow,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,Archimedes,(287-212 BC)an ancient Greek mathematician&physicist),2.Who wrote a book explaining how animals and plants developed as the environment changed?,Charles Darwin,(1808-1882)British,author of,The Origin of Species,“,father of modern biology”,7.Who was the painter that studied dead bodies to improve his painting of people?,Last Supper,Mona Lisa,Leonardo,da,Vinci,(1452-1519)Italian artist,8.Who invented a lamp to keep miners safe underground?,Sir,Humphry,Davy,(1778-1829)British,Miniature Miners Safety Lamp,10.Who put forward a theory about black holes?,Stephen Hawking,(1942-),a British astronomer,John Snow is a well-known doctor in the 19,th,century in London and he defeated“King Cholera”.,Do you know what kind of disease is 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 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,)and,diarrhoea,(,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 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 problem,Steps:,What/How?,1.Find a problem,2.Make up a question,3.Think of a method,4.collect results,John 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 water,Mark information on a map to find out where people died or did not died,6.Repeat if necessary,7.Make a conclusion,5.Analyse results,Analyse,the water to see if that is the cause of the illness,Find other evidence to make sure the conclusion,The water is to blame.The source of all drinking water should be examined.,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 problem.,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 victims,absorb,The second one.,To gather information in two particular streets.,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 deaths,had no deaths.,It seemed that the water,was to,blame,for,cholera.,Many of the deaths were near the water pump in Broad Street.,death,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 day?,What did their deaths suggest?,What measures did John Snow take to prevent the disease from spreading?,Away from Broad Street,Water from the pump,The polluted water carried the,virus,.,suggested thatbe examined,were,instruct,ed not to,exposeto,draw a conclusion,Think of a method,Collect results,Make a question,Find a problem,Analyse,the results,Find supporting evidence,Stages in setting out a new scientific idea:,Dicussing,John 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,),2.Make up a question:(,形成研究主题,),3.Think of a method:,(,找出研究方法,),4.Collect results,:(,收集材料,),5.Analyse results:(,分析材料,),6.Repeat if necessary:(,必要时重新分析,),7.Draw a conclusion:(,得出结论,),Read 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 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.,doctor,19,th,cause,defeat,broke,marked,pump,source,examined,dealing,Bye Bye,