Unit5GreatScientists.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,*,发现问题,提出假设,思考方法,收集资料,分析结果,寻找证据,得出结论,THINK,WORK,FIND,Do scientific research,(The process),Find a problem,Make a question,Think of a method,Collect results,Analyse,the results,Find supporting evidence,Draw a conclusion,SOLVE,John Snow defeats“King cholera,霍乱王,”,Reading,What 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.,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,).,Do you know what was this map used for in 1854?,Task 1:Skim and Scan,Who defeats“King Cholera“?,What happened in 1854?,How many people died in 10 days?,Why is there no death at No.20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?,John Snow,Cholera outbreak hit London.,500,These families had not drunk the water from the Broad Street pump.,Task 2,detailed reading,Read and answer:Para.1,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.,expert,attended,physician,exposed,cure,challenge,Paragraph 2,make up a question:Which theory to believe in?,idea 1,idea 2,Cholera multiplied in the air without reason.A cloud of dangerous gas would float around until it found its victims.,People absorbed it with their meals,.,John Snow finally proved the theory he believed 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 cholera from those who didnt,D.,both A and B,E.,both A and C,Paragraph 3&4,A map of Broad Street,What method did he use?,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Paragraph 5,Why did he tell people to remove the,handle,from the,pump,?,What happened after the handle was removed?,So that,slowed down,Paragraph 6,What s the extra evidence?,Two other deaths in another part of London that were linked to the Broad Street outbreak.,Paragraph 7,What are John Snows suggestions?,The source of all water supplies should be examined.,New methods of dealing with polluted water should be found.,The water companies were also,instruct,ed not to,expose,people,to,polluted water anymore.,Do you know what was this map used for in 1854?,Finding out the cause of Cholera.,Task 3,Mind Map of the text,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”,Mark information on a map to find out where people died or did not died,Gather information on those who were ill or died and where they got their water,What causes cholera?,Which theory is correct?,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,.,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,(in 5 minutes),Homework,What should we pay attention to in our daily life to prevent ourselves from getting infected with all these infectious diseases?,Discussion,.Eat cooked food while it is still hot.,.Boil water thoroughly(,完全,)before drinking.,.Wash hands with soap and water before preparing food and eating.,.Avoid eating raw food,especially seafood.,