人教版（2023）選擇性必修 第二冊Unit 1 Science and Scientists Reading and Thinking課件(共19張PPT)

第第頁人教版（2023）選擇性必修第二冊Unit1ScienceandScientistsReadingandThinking課件(共19張PPT)(共19張PPT)

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1.wheredoyouthinkthisphotowastaken

2.Whatarethestudentsdoinginthephoto

Itmaybetakeninachemistrylaboratory.

Twogirlstudentsareconductinganexperiment.

Openingpage

Toraisenewquestions,newpossibilities,toregardoldproblemsfromanewanglerequirescreativeimaginationandmarksrealadvanceinscience.

―AlbertEinstein&LeopoldInfeld

提出新的問題，發(fā)現(xiàn)新的可能，從新的角度審視已存在的問題，這些需要創(chuàng)造性的想象力，并標志著科學的真正進步。

―阿爾伯特愛因斯坦

利奧波德英費爾德

WhatqualitiesdidEinsteinandInfeldthinkascientistshouldhave

Imagination,creativity,raisingquestionsandnewpossibilities,andlookingatoldproblemsfromanewangle.

UNIT1SCIENCEANDSCIENTISTS

ReadingandThinking:

Understandthequestioningmind

Lead-in

Whatisthediseasementionedinthevideo

Covid-19

④

BesidesCOVID-19,whatotherkindsofepidemics（流行?。ヾoyouknow

bird-flu（禽流感）

malaria[mleri]（瘧疾）

cholera[klr]

（霍亂）

Ebola[bl](埃博拉)

①

②

③

WhoHelpedDefeatMalaria

Drawaconclusion得出結(jié)論

Collectdata收集資料

Askaquestion提出假設

Findaproblem發(fā)現(xiàn)問題

Analysetheresults分析結(jié)果

Findsupportingevidence尋找證據(jù)

Thinkofamethod思考方法

TuYouyoufollowedthescientificstagestofindoutthecureformalaria.Canyouputthemintherightorder

Didhe/shefollowthesamestagesasTuYouyou

WhoDefeatedCholera

JohnSnowDefeats“KingCholera”

Who

How

What

Mainidea:Thetextismainlyabout_________and______hedefeats___________

JohnSnow

how

KingCholera

scientificresearch

Activity1:Readthetitleandpredict——Whatwillbetalkedabout

Activity2:Fastreading——Readthewholepassagequicklyandmatchthemainidea

Para.1

Paras.2-3

Para.4

Para.5

◆HowdidJohnSnowdefeatKingCholera

◆What'sthetruthofKingCholera

◆WhatisKingCholera

WhoisJohnSnow

◆WhatarethecontributionsandsignificanceofJohnSnow'swork

Cholera

WhatIt'soneof________________________intheworld,becauseitcauses.

When___________________________

Where_________

What’stheresult___________________________________________

themostfeareddiseases

severediarrhoea,dehydrationandevendeath

Intheearly19thcentury

Europe

Millionsofpeoplediedfromthedisease

JohnSnow

WhoAdoctorwhoevenattendtowhenshegavebirth.

WhatHehadadesireto________________onceandforall.

British

QueenVictoria

destroycholera

Activity3:Carefulreading——Readfordetails.

Findtheproblem

Researchbackground

Thoughbeingfamous,hewasstilldevotedtodefeating“KingCholera”

Para.1

WhatwerethetwotheoriesandwhichdidJohnSnowagreewith

Twocontradictorytheories

Theoryone:

causedby________

Theorytwo:

causedby_______

badair

germs

Snowsubscribedtothesecondtheory.

Twocontradictorytheories

Findaproblem→Askaquestion

Heneededproof.

Para.2

beerpub

Note:——1deathPH:publichouse30,31,…:numbersofhouses

waterpump

7

Para.3

Thinkofamethod→Collectdata

1.WhatmethoddidSnowuse

2.WhatdidhefindonthemapWhatdidhedotodealwithit

AmapofBroadStreet

Para.3

Analyzetheresults→Findsupportingevidence

Snowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreet,and8and9Cambridge8Street)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeer,andsohadnotdrunkthewaterfromthepump.Snowsuspectedthatthewaterpumpwastoblame.Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatthewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.…

multiple

However

nodeaths

thewaterpumpwastoblame

Para.3

Drawaconclusion

Asaresultofthisevidence,JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.Accordingly,hehadthehandleofthepumpremovedsothatitcouldnotbeused.Throughthisintervention,thediseasewasstoppedinitstracks.

announce

Pumpwatercarriedthecholeragerms.

Removethehandleofthepump

Thediseasewasstopped

Readpara.2-3againandcompletethechartbelow.

A:Itwasbelievedthatcholerawascausedbybad___orgermsin___________.

B:Snow________

_______theplaceswherethepeoplewho____hadlived.

C:

◆Manydeathsoccurrednearthe__________inBroadStreet.

◆Somepeople________drunkthewaterfromthepump,andlived.

◆AwomanandherdaughterdiedinanotherpartofLondonafter_____________________.

D:Thepumpwatercarried

_____________.

E:The______ofthepumpwasremoved.

Matchthefollowingheaderswiththelettersfromthechartabove.WriteA-Eintheblanks.

1.conclusion2.evidence3.process4.solution5.theories

__________________________________

air

foodorwater

markedon

amap

died

waterpump

hadn't

drinkingwaterfromthepump

choleragerms

handle

D

C

B

E

A

conclusion

evidence

process

solution

theories

P34

Para2-3How

ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.

1.WhatcausedtheoutbreakofcholerainLondon

A.BadairB.Waterinfectedbyrawwaste

C.PollutedairD.Waterpollutedbytheair

2.AskquestionsP35

Para.4

pollutedbyrawwaste

infectedbywaste

1.Q:What________________________________________

A:Snowthoughtthatcholerawascausedbygermsinfoodorwater.

2.Q:Why________________________________________________

A:Snowhadthehandleofthepumpremovedsothatitcouldnotbeused.

3.Q:How______________________________________

A:ThecholerathreatwasdefeatedthankstotheworkofJohnSnow.

causedcholeraaccordingtoSnow

didSnowhavethehandleofthepumpremoved

wasthecholerathreatdefeated

Askquestions

Onewaytoapproachareadingpassageistoaskquestionsaboutit.Askingquestionscanhelpyouunderstandthecontent.Itcanalsohelpyouthinkmoredeeplyaboutthetopic.

ThroughSnow’stirelessefforts,watercompaniesbegantosellcleanwaterandthethreatofcholeraaroundtheworldsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientistsstudydiseases.Forthisreason,Snowisconsideredthefatherofmodernepidemiology.

WhatcontributionsdidJohnSnowmake

Para.5

Watercompaniesbegantosellcleanwater.

Thethreatofcholeraaroundtheworlddecreased.

Hehelpedpeopleknowhowtoprevent