Unit1ScienceandScientistsReadingandThinking课文四五段讲解课件-高二上学期英语人教版选择性

学习课文第四，五段

UNIT

1

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

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

waste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThames

thatwaspolutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.4.1.WhatcausedtheoutbreakofcholerainLondonin1854ThetruthwasthatthewaterfromfheBroadStreetpumphadbeeninfectedby

waste.SomecompaniessoldwaterfromtheRiverThames

(thatwaspolutedbyrawwaste.)Moreover

,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthose(whodrankpureorboiledwater.)定语从句定语从句1.truthn.事实，真相/真实性，真理truea.真的，真实的，真正的truelove（真爱）trulyad.真实地，真诚地

翻译：不到长城非好汉____________________________________________“Hewhodoesn'treachtheGreatWallisnotatrueman.”"NotatruemanunlesshecomestotheGreatWall."2.beinfectedby被...污染

3.waste

rawwaste4.showalinkbetweenAandB

5.casen.情况,情形；

案例，案件，案子，实例；

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

——————————————————————————7.purewater纯净水

boiledwater开水，煮沸了的水boilingwater正在沸腾的水It’slikelytorainnextweek,butit’smuchmorelikelytosnow.1.truthn.truea.trulyad.不到长城非好汉____________________________________________2.beinfectedby被...污染3.waste/rawwaste4.showalinkbetweenAandB

5.casen.情况；案例，案件，案子，实例；箱子（acaseofwine）6.belikelytodosth...很有可能...bemuchmorelikelytodosth...更有可能...7.purewater纯净水

boiledwater开水，煮沸了的水boilingwater正在沸腾的水“Hewhodoesn'treachtheGreatWallisnotatrueman.”"NotatruemanunlesshecomestotheGreatWall."summary

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

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.从句定语1.throughsb’stireless

eforts

通过某人不懈的努力tirev.（使）疲劳，疲倦

n.轮胎haveaflattire车胎瘪啦sparetire备胎tiredness疲劳；疲倦

adj.

tired疲倦的；厌倦的tiresome烦人的；无聊的

tiring累人的；麻烦的tireless不知疲倦的；不疲劳的adv.tirelessly不知疲倦地2.thethreat

of...的威胁threatn.威胁，恐吓threatenv.威胁常见考点threatensb.with...用……威胁某人Don'tyoudarethreatenmewithmyfamily!你敢拿我的家人来威胁我！

adj.threatened受到威胁的threatening危险的4.diefrom

死于...(外因)

dieof死于...

(内因)Manydeerdie____hunger.许多鹿死于饥饿.Manysoldiersdied

___wound.5.fortunately=

luckily幸运地（是）...unfortunately=unluckily不幸地（是）...3.asubstantialdecrease

大幅减少

asubstantialincrease

大幅增加6.thanksto=owingto...

=dueto…

（一般不放在句首，常置于be动词后）

=becauseof...=asaresultof...一句多译：

因为（新冠）疫情，我们不得不居家上网课._____________________________________._____________________________________._____________________________________.新冠病毒

novelcoronavirus新冠肺炎COVID-19疫情epidemicsituation居家stayathome上网课studyonlinehaveonlinelessons/classes/couresea.Thanksto/Owingto/Becauseof/Asaresultof...,wehaveto...b.Wehaveto...thanksto/owingto/becauseof/asaresultof..c.Thereasonwhywe...isbecauseof+短语...

Thereasonwhywe...isbecause+句子...

1.throughsb’stireless

eforts

通过某人不懈的努力2.thethreat

of...的威胁3.see(sawseen)v.拟人用法，表示“见证”4.asubstantialdecrease

大幅减少5.diefrom

dieof6.fortunately=

luckily幸运地7.thanksto=owingto...

=dueto…

（一般不放在句首，常置于be动词后）

=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