Unit1ScienceandScientistsReadingandThinking課文四五段講解課件-高二上學(xué)期英語人教版選擇性

學(xué)習(xí)課文第四，五段

UNIT

1

SCIENCEANDSCIENTISTSbeforetheclass.....TogetinformationabouthowJohnSnowdefeatedcholeraTolearnsomelanguagepointsTotalkaboutthesignificanceandcontributionofJohn’sworkandlearntodescribeagreatscientist溫故知新........AmapofBroadStreet-”CholeraMap”WhatmethoddidSnowuse1)Whichhouseshadmorethan4deathsinBroadStreet2)WhichhouseshadnodeathinBroadStreetandCambridgeStreetMultipledeathshappenedhere.Nodeathhappenedhere.Evidence

？Readthemapandgettoknowtheresearchmethodfurther.pumpHesuspectedthatthewaterfromthepumpwastoblame.課文第四段Aims:1.Gettheanswertothequestion:WhatcausedtheoutbreakofcholerainLondonin18542.Learnsomethingaboutthelanguagepoints.ThetruthwasthatthewaterfromfheBroadStreetpumphadbeeninfectedby

waste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThames

thatwaspolutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.4.1.WhatcausedtheoutbreakofcholerainLondonin1854ThetruthwasthatthewaterfromfheBroadStreetpumphadbeeninfectedby

waste.SomecompaniessoldwaterfromtheRiverThames

(thatwaspolutedbyrawwaste.)Moreover

,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthose(whodrankpureorboiledwater.)定語從句定語從句1.truthn.事實，真相/真實性，真理truea.真的，真實的，真正的truelove（真愛）trulyad.真實地，真誠地

翻譯：不到長城非好漢____________________________________________“Hewhodoesn'treachtheGreatWallisnotatrueman.”"NotatruemanunlesshecomestotheGreatWall."2.beinfectedby被...污染

3.waste

rawwaste4.showalinkbetweenAandB

5.casen.情況,情形；

案例，案件，案子，實例；

箱子（acaseofwine）6.belikelytodosth...很有可能...bemuchmorelikelytodosth...更有可能...仿寫：下周很有可能下雨，但更有可能下雪.

——————————————————————————7.purewater純凈水

boiledwater開水，煮沸了的水boilingwater正在沸騰的水It’slikelytorainnextweek,butit’smuchmorelikelytosnow.1.truthn.truea.trulyad.不到長城非好漢____________________________________________2.beinfectedby被...污染3.waste/rawwaste4.showalinkbetweenAandB

5.casen.情況；案例，案件，案子，實例；箱子（acaseofwine）6.belikelytodosth...很有可能...bemuchmorelikelytodosth...更有可能...7.purewater純凈水

boiledwater開水，煮沸了的水boilingwater正在沸騰的水“Hewhodoesn'treachtheGreatWallisnotatrueman.”"NotatruemanunlesshecomestotheGreatWall."summary

questiontimeReadparagraphs4andanswerthequestion.1.WhatcausedtheoutbreakofcholerainLondonin1854Para.4ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.…SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.ThewaterwhichcamefromtheRiverThamesandhadbeeninfectedbyrawwaste.課文第五段

A.Gettheanswerstoquestions:1.Wascholeradestroyedcompletely2.HowcanwepreventcholeraB.Learnsomelanguagepoints.

ThroughSnow’stireless

eforts,watercompaniesbegantosellcleanwater,andthethreatofcholeraaroundtheworidsaw

asubstantialdecrease.However,choleraisstilaproblem.Eachyear,milionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,

thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedtheway(scientistsstudy

diseases

.)

Forthisreason,Snowisconsideredthefatherofmodernepidemiology.5.從句定語1.throughsb’stireless

eforts

通過某人不懈的努力tirev.（使）疲勞，疲倦

n.輪胎haveaflattire車胎癟啦sparetire備胎tiredness疲勞；疲倦

adj.

tired疲倦的；厭倦的tiresome煩人的；無聊的

tiring累人的；麻煩的tireless不知疲倦的；不疲勞的adv.tirelessly不知疲倦地2.thethreat

of...的威脅threatn.威脅，恐嚇threatenv.威脅常見考點threatensb.with...用……威脅某人Don'tyoudarethreatenmewithmyfamily!你敢拿我的家人來威脅我！

adj.threatened受到威脅的threatening危險的4.diefrom

死于...(外因)

dieof死于...

(內(nèi)因)Manydeerdie____hunger.許多鹿死于饑餓.Manysoldiersdied

___wound.5.fortunately=

luckily幸運地（是）...unfortunately=unluckily不幸地（是）...3.asubstantialdecrease

大幅減少

asubstantialincrease

大幅增加6.thanksto=owingto...

=dueto…

（一般不放在句首，常置于be動詞后）

=becauseof...=asaresultof...一句多譯：

因為（新冠）疫情，我們不得不居家上網(wǎng)課._____________________________________._____________________________________._____________________________________.新冠病毒

novelcoronavirus新冠肺炎COVID-19疫情epidemicsituation居家stayathome上網(wǎng)課studyonlinehaveonlinelessons/classes/couresea.Thanksto/Owingto/Becauseof/Asaresultof...,wehaveto...b.Wehaveto...thanksto/owingto/becauseof/asaresultof..c.Thereasonwhywe...isbecauseof+短語...

Thereasonwhywe...isbecause+句子...

1.throughsb’stireless

eforts

通過某人不懈的努力2.thethreat

of...的威脅3.see(sawseen)v.擬人用法，表示“見證”4.asubstantialdecrease

大幅減少5.diefrom

dieof6.fortunately=

luckily幸運地7.thanksto=owingto...

=dueto…

（一般不放在句首，常置于be動詞后）

=becauseof...=asaresultof...

summary

questionstimeReadparagraphs4and5andanswerquestions.1.Wascholeradestroyedcompletely2.Howcanwepreventcholera

ThroughSnow’stireless

eforts,watercompaniesbegantosellcleanwater,andthethreatofcholeraaroundtheworidsaw

asubstantialdecrease.However,choleraisstillaproblem.Eachyear,milionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,

thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientistsstudy

diseases.

Forthisreason,Snowisconsideredthefatherofmodernepidemiology.Question1:WascholeradestroyedcompletelyQuestion2:HowcanwepreventcholeraReadparagraphs5andanswerthequestion.Question:WascholeradestroyedcompletelyPara.5

ThroughSnow’stirelessefforts,…aroundtheworldsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millio