人教版（2023）选择性必修第二册Unit 1 Science and scientist Reading and Thinking课件(共13张PPT)

第第页人教版（2023）选择性必修第二册Unit1ScienceandscientistReadingandThinking课件(共13张PPT)(共13张PPT)

Unit1ScienceandScientists

ReadingandThinking

JohnSnowDefeats“KingCholera”

Leadin

Areyoufamiliarwiththesesituations

Maskup

Getvaccinated

Nucleicacidtests

PositivemeasuresaretakentofightagainstCovid-19.

Leadin

Besidescoronavirus,whatotherkindsofepidemics(流行病)doyouknow

Discussion

20and21;8and9

multipledeathnearthewaterpump;somehouseshadnodeath.

awomanandherdaughterhaddied,

thewomanlikedthewaterhaditdeliveredtoherhouse

JohnSnowannouncedthatthepumpwatercarriedcholeragerms.

WhatcausedtheoutbreakofcholerainLondonin1854

ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.

revealthetruth

Para.4

ThroughSnow‘stirelessefforts,watercompaniesbegantosellcleanwater,andthethreatofcholeraaroundthewordsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientistsstudydiseases.Forthisreason,Snowisconsideredthefatherofmodernepidemiology.

resultsandcontributions

Para.5

Wascholeradestroyedcompletely？

WhatcontributionsdidJohnSnowmaketoscience？

UseyourownwordstoexplainJOHNSNOWDEFEATS“KINGCHOLERA”.

Who

What

How

Postreading

afamousBritishdoctorwhoevenattendedtoQueenVictoriawhenshegavebirth.

hadadesiretodestroycholeraonceandforall.

Itusedtobeoneofthemostfeareddiseasesintheworld.

Itcausesseverediarrhoea,dehydration,andevendeath.

Millionsofpeoplediedfromit.

Atfirst,…twotheories…Snowsubscribedto….

Snowdiscoveredthat…WhenanoutbreakofcholerahitLondonin1854,…

marked…onamap

Thereweremultipledeathsnear...

Snowsuspectedthat…

announced…...carried

Accordingly…Throughthisintervention,…

Furtherthinking:

1.WhatwasthemostimportanttoolSnowusedtodefeatcholeraWhatcommonmedicaltools,e.g.,amicroscope,didn’theuseWhy

2.HowhasJohnSnow'sworkaffectedourdailylives

1.

2.

3.

4.

...

Mapsandstatistics

Whilemicroscopesandothermedicaltoolsmaybegoodatrecoginzingwhatthegermis,findingoutwherethegermcomesfromandhowitspreadsisnotpossiblewiththesetools.

readilyavailablecleanwater

washhandsaftertheybecomedirty

transformthewayscientistsstudydiseases

Thinking

WhatmakesJohnSnowagreatscientistWhatarethecommon

qualitiesdogreatscientisthaveincommon？

responsib