Lesson3EpidemicsExplained.pptx

Unit21Lesson3,EpidemicsExplained,TeachingAims:1.Topracticereadingstrategiesforsequencing(排序)ofinformation.2.Topracticeusingthevocabularyofillness.3.Topracticeusingsynonyms.（同义词）4.Totalkaboutthefutureofmedicine.,TeachingProcedures:StepILeading-inLookatthepicturesbelowandguesswhatepidemicstheyare.StepIIFastReadingReadthetextfastanddotheMultipleChoicesbelow.1.Whyisitimportanttolookatthespreadofdiseasesthroughthehistory?(C)A.Becauseitcanenlargeourknowledge.B.Becausemanyepidemicscouldbethenextglobalepidemics.C.Becauseitcanhelpusdiscoverthecausesandeffectsofepidemicsandforeseeandpreventtheminthefuture.,2.Whichofthefollowingisoneoftheearliestepidemicsonrecord?(B)A.TheBlackDeath.B.Theepidemicswhichhappenedabout500-550ADthroughNorthAfrica,theMiddleEastandEurope.C.TheSpanishFlu.3.WhichofthefollowingisoneofthemaincausesofthefalloftheRomanEmpireaccordingtothepassage?(A)A.Upto50%oftheareaspopulationdiedfromaseriousepidemic.B.ThekingoftheRomanEmpiredied.C.TheeconomyoftheRomanEmpirehadfallendown.,StepIIICarefulReadingToaskthestudentstoreadthetextcarefullyanddothe“TrueorFalse”questionsbelow.1.War,crowdedcitiesandalackofbasichealthroutinesaretheconditionsfor“TheBlackDeath”tospreadworldwide.(T)2.TheSpanishFlustrucktheyoungandfitmost.(T)3.EverycountrycanfindthesolutionstostopaBirdFluepidemicseparately.(F)4.Flukillsmillionsofpeopleeveryyear.(T)5.Mostdiseasesareverynew.(T)6.Epidemicshaveaffectedhistoricalevents.(T)7.Ittakesyearsforadiseasetospreadworldwide.(T),8.Epidemicscanwipeoutuptohalfofthepopulationinurbanareas.(T)9.Morepeoplediedofafluepidemicin1918/1919thandiedinWorldWarI.(T)StepIVPostReadingNowusethestrategiestomatchthefiveparagraphs(A-E)withgaps3,5,8,10and12inthetext.(Answers:3.A5.E8.C10.D12.B),StepVExercises1.Matchthesynonymstogetherpleteprohibitb.datapausec.delaytendencyd.habitacutee.mediastatisticsf.pill.routineg.preventpressh.severetableti.testthoroughj.trendIgcjhbdefa,2.RevisethevocabularyofillnessItissaidthatfeverisonesymptomofcatchingaflu.Ifyougotoseeadoctor,hewillwriteoutaprescriptionforsomemedicine.Thedoctorwilltellyoutotaketwotabletsaftereverymeal.wordstudysymptom症状prescription处方tablet药片,StepDiscussionWorkinpairs.Whichofthesethingsdoyouthinkwillhappenwithinthenext25years?1.Newdrugswillstopalldiseases.2.Doctorswillfindacure