高中英语Unit 21 Lesson 3 Epidemics throughout history北师大版选修7VIP免费

Epidemicsthroughouthistory1.Withnewhealththreatsontherise,JamesMadisonlooksatepidemicsthroughouthistory.BacteriaandviruseshavebeenaroundsincethebeginningoflifeonEarthandmanyoftoday’sdiseaseshavebeenexistedaslongashumanshave.It’simportanttolookatthespreadofdiseasesthroughouthistorytodiscoverthecausesandeffectsofepidemics.2.----ScientistsnowthinkthatJustinian’sPlaguewasactuallyadiseasecalledbubonicplague.Theyestimatethatbetween25%and50%ofthearea’spopulationdiedfromthediseaseandthinkthattheepidemicwasoneofthekeycausesofthefalloftheRomanEmpire.4----5.InhighlypopulatedareasalloverEurope,Asia,AfricaandtheMiddleEast,onehalftoonethirdofthepopulationwaslosttotheBlackDeath.Lesspopulatedareas,mostlyinnorthernEurope,werelessseverelyaffected.6.AnotherepidemicthatstartedandspreadinsimilarconditionswastheGreatFluEpidemicof1918(alsocalledtheSpanishFlu).ItstruckneartheendofthefirstWorldWarandcontinuedafterthewarwasfinished.7.-----8.Oneepidemicthatwehaven’tforgottenyetistheSARSepidemicof2002/2003.itbeganwithanabnormallungdiseaseinGuangdongProvinceandspreadworldwideafterDrLiuJianjuncametoHongKong.Hestayedatahotelwherethediseasespreadtofourmorepeople.Whenthesepeopleleftthehotelandreturnedhome,theyspreadthediseasetoCanada,HongKong,VietnamandSingapore.9-----10.NoonereallyknewmuchaboutSARSasitwascompletelynewtophysicians.Doctorsweren’tsurehowtotreatitorpreventitandsincemostpeoplehadnonaturaldefencesagainstthedisease.ItwasalsoharmfultothedoctorsandpursestreatingtheSARSpatients.Hospitalstaff,especiallynurses,madeup21%ofthecases.11----AHavingkilledbetween25and50millionpeoplein18months.Itisbelievedtobethemostacuteworldwideepidemicinhistory.Morepeoplediedofthefluthandiedinthewar.Yet,somehow,ithasbeenforgottenbyhistory.B.Althoughaspectsofmodernlife,suchaswidespreadairtravel,allowedtheSARSepidemictoquicklyexpandacrosstheglobe,otheraspects,suchasimprovedcommunicationtechnologyandimprovedmedicalresearchtechniques,allowedhealthexpertstheworldovertoshareknowledgeandworktogethertostopthevirusinitstracks.CInthe1330’s,thebubonicplaguereturned,thistimeinAsia.Itwouldspreadrapidlyandcometobeknownas“TheBlackDeath”.TheconditionsinmuchofAsiaandEurope–war,climatechange,alackofadequatefood,crowdedcitiesandalackofbasichealthroutines---providedtheperfectconditionsforthediseasetospreadworldwide.DOverninemonths,thenumberofglobalcasespassed8,000and774peopledied.AlthoughthesenumbersaremuchsmallerthanthenumberforotherdiseasessuchasTBorflu,whichkillmillionseveryyear,theoutbreakwasstillveryalarmingforafewkeyreasons.用心爱心专心F.Epidemicsaredescribedinhistoricalaccountsasearlyas430BCandoneoftheearliestonrecordisJustinian’sPlague.Ithappenedabout500-550ADasRomanEmperorJustinianwasattemptingtorebuildandacquiremorelandfortheRomanEmpire.ItsweptthroughNorthAfrica,theMiddleEastandEurope.（2）教案小说人物形象归纳法ReadasciencearticleeasilyTeachingAims:ToreadanarticleaboutepidemicsToimprovetheSs’readingabilityToimprovetheSs’speakingabilityLearningmethod:ConcludingTeachingprocedure:Step1:AddressingStep2:Lead-in1.Listentothesong“Tearsinheaven”.2.What’syourfeelingafterhearingthesong?3.Whywasthesingersosad?4.Whatelsemaycausedeath?5.Epidemicscancausemoredeathsthananythingelse.Step3:Readthetext(1)Readthetitlecarefullyandgetsomegeneralideasofthetext1.Predictwhatwillbetalkedinthetext2.Readothertitlesanddiscusswhatwillbeinvo...