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1、2019-2020年高中英语Unit21Lesson3Epidemicsthroughouthistory教案北师大版选修71.Withnewhealththreatsontherise,JamesMadisonlooksatepidemicsthroughouthistory.BacteriaandviruseshavebeenaroundsincethebeginningoflifeonEarthandmanyoftoday’sdiseaseshavebeenexistedaslongashumanshave.It’simportanttolookatthespreadofdiseases
2、throughouthistorytodiscoverthecausesandeffectsofepidemics.2.----ScientistsnowthinkthatJustinian’sPlaguewasactuallyadiseasecalledbubonicplague.Theyestimatethatbetween25%and50%ofthearea’spopulationdiedfromthediseaseandthinkthattheepidemicwasoneofthekeycausesofthefalloftheRomanEmpire.4----5.Inhighlypop
3、ulatedareasalloverEurope,Asia,AfricaandtheMiddleEast,onehalftoonethirdofthepopulationwaslosttotheBlackDeath.Lesspopulatedareas,mostlyinnorthernEurope,werelessseverelyaffected.6.AnotherepidemicthatstartedandspreadinsimilarconditionswastheGreatFluEpidemicof1918(alsocalledtheSpanishFlu).Itstrucknearthe
4、endofthefirstWorldWarandcontinuedafterthewarwasfinished.7.-----8.Oneepidemicthatwehaven’tforgottenyetistheSARSepidemicofxx/xx.itbeganwithanabnormallungdiseaseinGuangdongProvinceandspreadworldwideafterDrLiuJianjuncametoHongKong.Hestayedatahotelwherethediseasespreadtofourmorepeople.Whenthesepeopleleft
5、thehotelandreturnedhome,theyspreadthediseasetoCanada,HongKong,VietnamandSingapore.9-----10.NoonereallyknewmuchaboutSARSasitwaspletelynewtophysicians.Doctorsweren’tsurehowtotreatitorpreventitandsincemostpeoplehadnonaturaldefencesagainstthedisease.ItwasalsoharmfultothedoctorsandpursestreatingtheSARSpa
6、tients.Hospitalstaff,especiallynurses,madeup21%ofthecases.11----AHavingkilledbetween25and50millionpeoplein18months.Itisbelievedtobethemostacuteworldwideepidemicinhistory.Morepeoplediedofthefluthandiedinthewar.Yet,somehow,ithasbeenforgottenbyhistory.B.Althoughaspectsofmodernlife,suchaswidespreadairtr
7、avel,allowedtheSARSepidemictoquicklyexpandacrosstheglobe,otheraspects,suchasimprovedmunicationtechnologyandimprovedmedicalresearchtechniques,allowedhealthexpertstheworldovertoshareknowledgeandworktoge
