1、ReadingReadingWho are they?Who are they?Guessing gameLets have a competition!Who is he?Who is he?He invented electric bulbs.He made more than 1,000 inventions duringhis life.He is Thomas EdisonThomas Alva EdisonGenius is one percent inspiration and ninety-nine percent perspiration.Who is he?Who is h
2、e?He is called the greatest scientist in the 20th century.He is famous for the Theory of Relativity.He is Albert EinsteinImagination is more important than knowledgeimaginativeWho is she?Who is she?She is a woman scientist.She discovered radium(镭镭)and polonium(钋钋).In her life,she won the Nobel Prize
3、 twice.She is Marie CurieNothing in life is to be feared.It is only to be understood.Who is he?Who is he?He made the first telescope in the world.His observations show that the earth movesaround the sun.He is Galileo GalileiYou cannot teach a man anything.You can only help him find it within himself
4、.a serious infection of the bowels caused by drinking infected water or eating infected food,causing diarrhoea(腹泻腹泻),vomiting(呕吐呕吐)and often death.GermanyGreat BritainDeath of first cholera case in London during the 1848-49 epidemic LondonPrevious cholera epidemic in Great Britain in 1831-32The spre
5、ad of The spread of choleracholeraDo you know what did this map was used for in 1854?Finding out the cause of Cholera.John SnowJohn SnowBritish(1813 1858)British(1813 1858)a legendary(a legendary(传奇的传奇的)figure in the figure in the history of public history of public health,epidemiologyhealth,epidemi
6、ology（流行病学）（流行病学）and and anesthesiologyanesthesiology（麻醉（麻醉学）学）Read the text quickly and complete the main idea of it.The text is mainly about _ and how he _.Johndefeated choleraSnow Task one:skim and scan1.Who defeats“King Cholera“?2.What happened in 1854?3.How many people died in 10 days?John Snow
7、Cholera outbreak hit London.5004.Why is there no death at No.20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?These families had not drunk the water from the Broad Street pump.A map of Broad StreetWhat method did he use?Broad StreetPublic houseDraw a conclusionFind a problemMake up a
8、 questionThink of a methodCollect resultsAnalyse the resultsPara 1Para 2Para 3Para 4Para 5Para 6Match themAnalyse resultsPara 7Match the stages of scientific research with what John Snow did to solve the problem of cholera.1.Find a problem.2.Make a question.He noticed two possible theories which exp
9、lained how cholera spread.He wanted to face the challenge of cholera and find the cause.3.Think of a method.4.Collect results.5.Analyse the results.He found that the water came from a polluted river and cholera was spread by germs.He thought the second idea was correct and decided to prove it.He mar
10、ked the death places on a map and found out many deaths occurred near the water pump.6.Find supporting evidence.7.Draw a conclusion.He found that the family who used piped water from Broad Street died.He announced that polluted water carried the virus.About JohnSnowHe was a famous _ and Queen Victor
11、ias personal physician.He made up his mind to solve the problem of _.Two theoriesTheory 1:Cholera was spread by _.Theory 2:The disease went into peoples bodies throughtheir _.His suspicionHe thought that the _ theory was correct.doctorcholeraairmealssecondWhat he did to prove hisassumptionEvidence 1
12、:He _ the places on a map where the dead people lived and found the deaths were near the water pump in Broad Street.Evidence 2:He looked into the sourceof the water and found it came from a(n)_ river.When the water was cut off,the disease _.Evidence 3:A woman and _ _ used the water from Broad Street pump and died.markedpollutedslowed downherdaughterConclusionPolluted water carried the _virus
