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1、John Snow Defeats“King Cholera”Unit 1 Science and scientistReading and thinkingWhat other infectious diseases do you know?malariamalariamalariamalariaSARSSARSSARSSARSblackblackblackblack deathdeathdeathdeathSpanish Spanish Spanish Spanish flufluflufluEbolaEbolaEbolaEbolaAIDSAIDSAIDSAIDSsmallpoxsmall
2、poxsmallpoxsmallpoxCholeraTBTBTBTBp Lead-inplagueplagueplagueplaguep PredictionPut the Put the stages of scientific research stages of scientific research in the correct order.in the correct order.Stages of Scientific Research find a problemdraw a conclusioncollect dataask a questionfind the support
3、ing evidenceanalyze the resultsthink of a methodp PredictionWhoHowWhatWhat might be talked about in the text?What might be talked about in the text?Why Cholera was called“King”at that time?Why Cholera was called“King”at that time?PersonificationBecause it claimed/took a lot of lives.p Read for Struc
4、tureScan the whole text and find out the Scan the whole text and find out the main idea main idea of each part.of each part.Para.1:What is cholera?Who is Snow?Para.2-3:How did Snow defeat choleraPara.4:The truth of choleraPara.5:Results and contributionp Read for Details(Para.1)ReadRead Para.1 and f
5、inish the information cardsPara.1 and finish the information cardsJohn Snow King CholeraIdentity:Symptoms:Consequence:Occupation:Nationality:Desire:one of _ in the world _ of people died from it when it hit Europe in the early 19th century severe diarrhea,dehydration,and even _ _ when she give birth
6、)the most feared diseasesdeathBritainMillions A famous _(who even attend to _ doctorQueenVictoriaTo destroy cholera once and for all.p Read for Details(Para.2)WhatWhat were the two theories and were the two theories and whichwhich did John Snow agree with?did John Snow agree with?two contradictory t
7、heoriesBad air causedthedisease.Cholera was caused by an infection from germs in food or water.transmissionp Read for Details(Para.2)bad air theorygerm theoryp Read for Details(Para.2)What method did JohnWhat method did John Snow use?Snow use?find a problemask a questionthink of a methodSnow began b
8、y marking on a map the exact places where all those who died had lived.p Read for Details(Para.3)Pair work:Observe the map and analyze it with questions.Pair work:Observe the map and analyze it with questions.1.What does“”mean?How about PH?2.Which house numbers had more than four deaths in Broad Str
9、eet?3.Which house numbers had no deaths in Broad Street?4.Why some households(2o,21,8 and 9)had no death?5.Whats the similarity among the houses in Broad Street that had multiple death?6.Whats you deduction/assumption?Near the water pump.The water pump was to blame./There is something wrong with the
10、 water pump.Because these people worked in the pub at 7 Cambridge Street.They had been given free beer,and so had not drunk the water from the pump.find the supporting evidenceDid John Snow make his research results public the minute he found out that the polluted water might be to blame?Why not?Wha
11、t did he do instead?p Read for Details(Para.3)assumptionp Read for Details(Para.3)supporting evidenceconclusionactionresultsassumptionp Lets review&retellStages of Scientific Research find a problemask a questioncollect datathink of a methodanalyze the resultsfind the supporting evidencedraw a concl
12、usion1.What caused the outbreak of cholera in London in 1854?2.Was cholera destroyed completely?3.How can we prevent cholera?4.What contribution did John Snow make to science?Read paragraph 4-5 and answer the following questions:Read paragraph 4-5 and answer the following questions:p Read for Detail
13、s(Para.4-5)The water which came from the River Thames had been infected by waste.No.pHow can we prevent cholera?Drink and use safe waterWash your hands oftenUse toilets Cook raw food thoroughly,keep it covered,eat it hotClean up safely 1.What caused the outbreak of cholera in London in 1854?2.Was ch
14、olera destroyed completely?3.How can we prevent cholera?4.What contribution did John Snow make to science?Watch the video and answer the following questions:Watch the video and answer the following questions:p Read for Details(Para.4-5)The water which came from the River Thames had been infected by
15、waste.No.He helped people know how to prevent cholera.He transformed the way scientists study disease by using maps and statistics.contributionachievementWhy Why could could John John Snow Snow defeat defeat King King Cholera?Cholera?Discuss Discuss the the qualities qualities of of John John Snow S
16、now based based on on what what he he did,did,giving evidence to support your conclusion.giving evidence to support your conclusion.p HomeworkQualitiesSupporting Evidencecriticalthinking;questioningmindastrongdesiretoexploretwocontradictorytheoriesSnowsubscribedtothesecondtheory.Itwascorrect,buthestillneededproofSnowbegantoinvestigatecreativeimaginationprofessionalknowledgeusescientificmethodpreciseattitudeinnovativespirit