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1、Unit1GreatscientistsZhang Heng seismographHeisthefatherofsuperhybridriceandoneofChinasmostfamousscientists.Yuan LongpingAlexander Bell electricity Thomas Edison the first telephoneWright Brothers the electric lampMadame Curie black holes in universeFranklin Theory of GravitySteven Hawking the first
2、planeElbert Einstein radiumIsaac Newton Theory of RelativityScientists&Contributions:common characteristicsresponsible curiouscautiouspositivehardworkingcreativeimaginativeenthusiasticWhat good qualities do they have?.Dr.John Snow史 諾 醫 生JohnSnowwasawell-knowndoctorinthe19thcenturyinLondonandhedefeat
3、ed“KingCholera”.What is cholera?Cholera is a deadly disease which used to be hard to defeat.It used to contribute to many deaths.contribute to =lead to =cause Lets get to know how Dr.John Snow use scientific research to defeat“King Cholera”in 1854 in London in this reading passage:John Snow Defeats“
4、King Cholera”Match them:Para1Para2Para3Para4Para5Para6Para7 7 stepsDraw a conclusion Think of a method Collect results Make a questionFind a problem Analyse the results Find supporting evidenceStepsWhat/How?1.Findaproblem2.Makeaquestion3.Thinkofamethod4.CollectresultsJohn Snow Defeats“King Cholera”W
5、hat contributes to cholera?Theory 1:_ Theory 2:_ Which theory is correct?He began to _ to prove _ theory was correct._information on a _ to find out the places_gatherinformationthesecondHe markedmapwhere the dead people had lived.BroadStreetManydeathshappenedhere.No death happened here.PublichouseTh
6、ese families had not drunk the water from the Broad Street pump.It seemed that the water from the pump was to blame.？BroadStreetManydeathshappenedhere.No death happened here.PublichouseThese families had not drunk the water from the Broad Street pump.It seemed that the water from the pump was to bla
7、me.？waterpumpNowitisstillintheBroadStreetinLondon,butitdoesnotspreadthecholeragerms.6.Findsupportingevidence7.Drawaconclusion5.AnalyseresultsHe looked into _ to see if that was the cause of the illness.He found _,both of whom died of cholera after _.Polluted water carried the germs and the source of
8、 all drinking water supplies should be examined.the source of the watersupportingevidencefromdrinkingthewatertwootherdeathsDrawaconclusionFindaproblemMakeaquestionThinkofamethodCollectresultsAnalysetheresultsPara1Para2Para3Para4Para5Para6FindsupportingevidencePara7Review 7 steps that John Snow tookW
9、hatdiseasedoyouthinkissimilartocholeratoday?Why?SARS,AIDS,birdfluandH7N9Theyaresevere.Theycanbespreadtootherpeople.Theyhaveunknowncause.Theyaredifficulttocure.Theyneedpublichealthcaretosolvethem.infectious diseasesTodealwiththesediseases,whatshouldwelearnfromJohnSnow?StepsWhat/How?1.Findaproblem2.Ma
10、keaquestion3.Thinkofamethod4.CollectresultsJohn Snow Defeats“King Cholera”What contributes to cholera?Theory 1:_ Theory 2:_ Which theory is correct?He began to _ to prove _ theory was correct._information on a _ to find out the places_gatherinformationthesecondHe markedmapwhere the dead people had l
11、ived.BroadStreetManydeathshappenedhere.No death happened here.PublichouseThese families had not drunk the water from the Broad Street pump.It seemed that the water from the pump was to blame.？waterpumpNowitisstillintheBroadStreetinLondon,butitdoesnotspreadthecholeragerms.6.Findsupportingevidence7.Dr
12、awaconclusion5.AnalyseresultsHe looked into _ to see if that was the cause of the illness.He found _,both of whom died of cholera after _.Polluted water carried the germs and the source of all drinking water supplies should be examined.the source of the watersupportingevidencefromdrinkingthewatertwo
13、otherdeathsDrawaconclusionFindaproblemMakeaquestionThinkofamethodCollectresultsAnalysetheresultsPara1Para2Para3Para4Para5Para6FindsupportingevidencePara7Review 7 steps that John Snow tookWhatdiseasedoyouthinkissimilartocholeratoday?Why?SARS,AIDS,birdfluandH7N9Theyaresevere.Theycanbespreadtootherpeop
14、le.Theyhaveunknowncause.Theyaredifficulttocure.Theyneedpublichealthcaretosolvethem.infectious diseasesTodealwiththesediseases,whatshouldwelearnfromJohnSnow?He made great contributions to defeating the SARS.Zhong NanshanDrawaconclusionFindaproblemMakeaquestionThinkofamethodCollectresultsAnalysetheres
15、ultsFindsupportingevidencescientificresearch:Earlyin2003peoplewereexposedtoanewillnesswhichwassevere.Atfirst,thisillnesslookedasifitwereflu.Theproblemwasthatnobodyknewitscauseorcure._Authorities(权威机构权威机构)saidchlamydia(衣原体病菌衣原体病菌)wasthecauseofSARS.ButZhonghadhisownopinion.Hethoughtitmightbeonecauseof
16、death,butnottheonlycauseofSARS.Theremustbesomethingelsecausingthedisease._Inordertofindothercauses,hebeganhisenquiry.Hegatheredinformationaboutthosepeoplewhowereillanddied._FindaproblemMakeaquestionThinkofamethodHeworkedveryhardandrefusedtohidethefacts.Patientsalwayshadahightemperatureheadachesandof
17、tendevelopedadrycoughandpneumonia（肺炎）.Whendoctorsandnursestouchedthepatientskissedorhuggedthem,cameclosetothemortoucheditemsusedbythepatients,theywereatrisk._Itwaseasytofallillwithitbecauseitwasspreadthroughair,waterandclosecontactwithpatients._CollectresultsAnalysetheresultsItwashighlyinfectioussot
18、hatdirtyplatesinrestaurants,dirtytoiletsorfoodthatwasnotcleanpassedonthedisease.Whenpeoplewereinfected,theycouldspreadthediseasebycoughingorsneezing(打喷嚏)._FindingsupportingevidenceOnthe12thApril2003,hewassuccessfulinfindingthecauseofSARS.Itwascertainthattheair,waterandclosecontactwithpatientsweretob
19、lame.HesaidthebestwaytopreventthespreadofSARSwastokeepawayfromtheplaceswheretherewasanoutbreakandavoidcontactingwithpeoplewhomightbeinfected.Peoplecouldalsoreducetheriskofinfectionbywashinghandsoftenwithsoap.Becauseofhisgoodwork,SARSdidnotreturntoChinain2004._DrawaconclusionHomework:1.Readthetextandlearnthenewwordsbyheart.2.Findthesentenceswherethepastparticipleisusedinthetext.