Unit1ScienceandScientistsReadingandThinking课件-高中英语人教版选择性必修第二册

Unit1ScienceandscientistsJohnSnowDefeatsKingCholerawatchaclipandwritedownthenamesasmanyasyoucanMemoryTestbiologymedicineagriculturegeologyspaceengineeringscienceLatin:“knowledge”MemoryTestWarming-upWhatisscience?“Toraisenewquestions,newpossibilities,toregardoldproblemsfromanewangle,requirescreativeimaginationandmarksrealadvanceinscience.”--AlbertEinsteinSciencecanbedefinedastheprocessofobservingand__________theworldaroundus.Scientists

aimtoget__________throughadeciplinedsetofstepscalledscientificmethod.questioningknowledgescientificmethodWarming-upstagesofscientificresearchanalysetheresultsaskaquestiondrawaconclusioncollectdatafindaproblemfindsupportingevidencethinkofamethodOrder?PairworkReadingReadingforpredictionReadingJohnSnowDefeats“KingCholera”Accordingtothetitle,thestoryisgoingtotellusinformationabout...who

is

JohnSnow?what

ischolera?howtodefeat?JohnSnow“KingCholera”DefeatsReadingforinformationJohnSnow

aBritishdoctor

Intime,herosetobecomeafamousdoctorandevenattendedtoQueenVictoriawhenshegavebirth.expert/experienced/knowledgeableThefatherofmodernepidemiologyReadingtobecomemoresuccessful,important,powerfulReadingforinformationItusedtobeoneofthemostfeareddiseasesintheworld.

causeseverediarrhoea,dehydration,andevendeath.

...nooneknowshowtopreventortreatcholeraItisstillaproblem.Fortunately,weknowhowtopreventit.deadlyuncontrollable“King”ReadingCholera

used

to

be

one

of

the

most

feared

diseases

in

the

world,until

aBritish

doctor,

John

Snow,

showed

how

it

could

be

overcome.Thisillness

causes

severe

diarrhoea,

dehydration,and

evendeath.In

theearly

19th

century,

when

anoutbreak

ofcholera

hit

Europe,

millionsof

people

died

from

the

disease.

As

a

young

doctor,

John

Snowbecame

frustrated

because

no

one

knew

how

to

prevent

or

treat

cholera.In

time,

he

rose

to

become

a

famous

Doctor,and

even

attended

toQueen

Victoria

when

she

gave

birth.

However,

he

never

lost

his

desire….ReadingforinformationPara1:FindaproblemProblemCholerawasadeadlydiseaseandpeoplehadnoideaaboutitscauseoritscure.In

general,

doctors

in

those

days

had

two

contradictory

theories

to

explainhowcholera

spread.

One

theory

was

that

bad

air

caused

the

disease.

The

other

was

thatcholera

was

caused

by

an

infection

from

germs

in

food

or

water.

Snow

subscribed

tothe

second

theory.

It

was

correct,

but

he

still

needed

proof.

Consequently,

when

an

outbreak

of

cholera

hit

London

in

1854,

Snow

began

to

investigate.

He

discovered

that

in

two

particular

streets

the

cholera

outbreak

was

so

severe

that

more

than

500people

died

in

ten

days.

He

was

determined

to

find

out

why.ReadingforinformationPara2:AskaquestionQuestionHowdidcholerakillpeople?Snowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreet,and8and9Cambridge8Street)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeer,andsohadnotdrunkthewaterfromthepump.Snowsuspectedthatthewaterpumpwastoblame.Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatthewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.Asaresultofthisevidence,JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.Accordingly,hehadthehandleofthepumpremovedsothatitcouldnotbeused.Throughthisintervention,thediseasewasstoppedinitstracks.ReadingforinformationPara3:Thinkofamethod&CollectdataBroadStreet37403816209821Manydeathshappenedhere.Nodeathhappenedhere.PublichouseItseemedthatthewaterfromthepumpwastoblame.AnalyzetheresultsSnowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreet,and8and9Cambridge8Street)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeer,andsohadnotdrunkthewaterfromthepump.Snowsuspectedthatthewaterpumpwastoblame.Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatthewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.Asaresultofthisevidence,JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.Accordingly,hehadthehandleofthepumpremovedsothatitcouldnotbeused.Throughthisintervention,thediseasewasstoppedinitstracks.ReadingforinformationPara3:Thinkofamethod&CollectdataFindsupportingevidenceDrawaconclusionbeerpubNote:——1deathPH:publichouse30,31,…:numbersofhouseswaterpump7Para4ReadingforthinkingAftertheremoveofthehandle,thespreadofcholerainthisareawasstopped.HowaboutotherpartsinLondon?

Thegovernmentmightaskeallthewatercompaniestoprovidecleanwater.Whatmeasuresmighttheytake?Peoplemightbeeducatednottodrinkrawwaterbutpureorboiledwater.notpurifiedlargeindegreestagesofscientificresearch7.drawaconclusion6.findsupportingevidence

5.analyzetheresults4.collectdata3.thinkofamethod2.askaquestion1.findaproblemReadingReadingforthinkingWhatmadeJohnSnowsucceedinpreventing“Kingcholera”?(trytofindsupportingdetailsfromthetext)1.2.3.4....GroupworkReadingforthinkingexpertAsayoungdoctor,JohnSnowbecamefrustrated.Intime,herosetobecomeafamousdoctor.determinedHeneverlosthisdesiretocholeraonceandforall.careful/rigorous(严谨的)curious/questioningmindHesuspected....Hewas