Unit1ScienceandScientistsReadingandThinking课件高中英语人教版选择性

选择性必修二Unit1ScienceandScientistsPeriod1ReadingandThinkingJohnSnowDefeats“KingCholera”

Toraisenewquestions,newpossibilities,toregardoldproblemsfromanewangle,requirescreativeimaginationandmarksrealadvanceinscience.AlbertEinstein&LeopoldInfeld提出新的问题，新的可能性，从新的角度看待老问题，需要创造性的想象力，标志科学的真正进步。ArchimedesCharlesDarwinTuYouyouGregorMendelLeonardodaVinciMarieCurieThomasEdisonZhangHengZhongNanshan Doyouknowthescientists?scientistLeadinThescientistsinfightingagainstCOVID-19LeadinLeadinBesidescoronavirus,whatotherkindsofepidemics(流行病)doyouknow?plagueCholeralossofliquid/dehydration(缺水)severevomiting(呕吐)diarrhea(腹泻)Itbeginsinthestomachandaseverecasecanleadtodeathwithoutimmediatetreatment.JohnSnowDefeated“KingCholera”WhatisCholera?WhoisJohn

Snow?HowdidhedefeatCholera?Pre-Reading:PredictionThetextismainlyabout____________and_______hedefeatedkingcholera.howJohnSnowActivity1ReadforthemainideaPara1Para2Para4Para5JohnSnowwanttousehisknowledgetosolvecolera.Heneededtoprovethesecondtheorywascorrect.Johnbeganhisstudybymarkingonthemap&theprocess.Hefinallyfoundoutthatdirtywaterwasthecauseofcholera.JohnSnowmadegreatcontributionstomodernepidemiology.Para3WhoHowWhatHowJohnSnowcholeraWho?A________doctorwhoevenattended_______________whenshegavebirth.What?Hehadadesireto________________onceandforall.famousdestroycholeraWhat?Itusedtobeoneof_________________________________________becauseitcauses______________________________________________.When?_____________________________________________________________.Where?_____________________________________________________________.Whatconsequence?Millionsofpeople_______________________________.themostfeareddiseasesintheworldseverediarrhoea,dehydrationandevendeathIntheearly19thcenturyEuropediedfromthediseaseQueenVictoria“KingCholera”=________choleradeadlyWhileReading:backgroundActivity2Readforstages

analyzetheresults

askaquestion

collectdata

thinkofamethod

findaproblem

findsupportingevidence

drawaconclusionPutthesevenresearchstagesinorder.How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.badairfoodorwaterfindaproblemStep2Snowwasdeterminedtofindout

.

.How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.foodorwaterfindaproblemStep2Snowwasdeterminedtofindout

.

.whytheoutbreakwassosevereintwoparticularstreets

askaquestionStep3Snow

theplaceswherethepeoplewho

hadlived.markedonamapdiedthinkofamethod(Para.3)BROADSTREETWhatkindofmapisit?It’sSnow’scholeramap.Whatdoes“—”mean?Itmeansonedeath.Whatdoes“PH”mean?Itmeanspublichouse,ahousesuchasbarorpubwherealcoholicdrinksaresoldtothepublic.Whatdoes30,31,...referto?Theyrefertonumbersofhouses.Step4

Thenumberofdeathsindifferenthouseholdswasrecorded.collectdata图片来源于网络BROADSTREETWhichhousenumbershadmorethanfourdeathsinBroadStreet?Housenumber16,37,38and40hadmorethanfourdeathsinBroadStreet.WhichhousenumbershadnodeathsinBroadStreet?Housenumber14,20,21,25,27,28and34hadnodeathsinBroadStreet.Whereisthepump?Thepumpisnearhousenumber40inBroadStreet.Step5Multipledeathsoccurrednearthe

inBroadStreet,whilesomepeoplewho______

drunkthewaterfromthepump,lived.analyzetheresultspumphadn’tStep6findsupportingevidence图片来源于网络Step7drawaconclusionWhatistheresultofJohnSnow’sresearch?Thepumpwatercarriedcholeragerms,thehandleofthepumpwasremoved,andthediseasewasstoppedinitstracks.handle(Para.3)Checkyourorder(Activity1onpage2)

analyzetheresults

askaquestion

drawaconclusion

collectdata

findaproblem

findsupportingevidence

thinkofamethod6543217sevenstagesinscientificresearchPhenomenontwotheoriesmakeaninvestigationfind?othercaseshow?FindsupportingevidencePara1Para2Para3Para4Para5FindaproblemMakeaquestionThinkofamethodCollectdataAnalysetheresultsDrawaconclusionSolutionsandsignificanceSnowhadthe_______ofthepumpremoved.EActivity3ReadfordetailedinformationinPara.2&3Itwasbelievedthatcholerawascausedby_______orgermsin_____________.ASnow_________________theplaceswherepeoplewho_____hadlived.BbadairfoodorwatermarkedondiedThepumpwatercarried____________.DcholeragermshandleamapStepsintheresearchManydeathsoccurrednearthe__________inBroadStreet.Somepeople_______drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter____________

______________.Cwaterpumphadnotfromthepumpdrinkingwaterairfoodorwatermarkedonamapdiedwaterpumphadn’t

drinkingwaterfromthepumpcholeragermshandleMatchthefollowingheaderswiththeletters(A-E)fromthechartbelow.1conclusion

.

2evidence

.

3process

.4solution

.5theories

.

AEBCDDiscussionHowhasJohnSnow'sworkaffectedourdailylives?Hisworkcanprotectpeoplefrombeingkilledbytheseveredisease.Furthermore,ittoldusweshouldprotectourenvironmentfrombeingpolluted.Inordernottogetinfectedwithdisease,whatshouldwepayattentiontoinourdailylife?Activity4Groupdiscussion

Inourdailylife,inordernottogetinfectedwiththeinfectiousdisease,suchascholera,AIDS,SARS,COVID-19,whatshouldwedo？

HealthefoodleftovernightCookra