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用心爱心专心Unit1GreatscientistsTeachingaimsTohelpstudentslearntodescribepeopleTohelpstudentslearntoreadanarrationaboutJohnSnowTohelpstudentsbetterunderstand“Greatscientists”TohelpstudentslearntousesomeimportantwordsandexpressionsTohelpstudentsidentifyexamplesof“ThePastParticiple(1)asthePredicative&theattribute”Period1WarmingupandreadingTeachingProceduresI.WarmingupStepILeadinTalkaboutscientist.T:Hi,morning,class.Nicetoseeyouonthisspecialday,thedaywhenyoubecomeaseniortwograder.IamhappytobewithyouhelpingyouwithyourEnglish.Todaywearetoreadaboutacertainscientist.Butfirstlet’sdefinetheword“scientist”.Whatisascientist?Ascientistisapersonwhoworksinscience,tryingtounderstandhowtheuniverseorotherthingswork.Scientistscanworkindifferentareasofscience.Herearesomeexamples:Thosethatstudyphysicsarephysicists.Thosethatstudychemistryarechemists.Thosethatstudybiologyarebiologists.StepIIAskthestudentstotrythequizandfindoutwhoknowsthemost.T:Therearesomegreatscientificachievementsthathavechangedtheworld.Canyounamesomeofthem?Whatkindofroledotheyplayinthefieldofscience?Dotheseachievementshaveanythingincommon?Matchtheinventionswiththeirinventorsbelowbeforeyouanswerallthesequestions.1.Archimedes,AncientGreek(287-212BC),amathematician.2.CharlesDarwin,Britain(1808-1882).ThenameofthebookisOriginofSpecies.3.ThomasNewcomen,British(1663-1729),aninventorofsteamengine.4.GregorMendel,Czech,abotanistandgeneticist.5.MarieCurie,PolishandFrench,achemistandphysicist.6.ThomasEdison,American,aninventor.7.LeonardodaVinci,Italian,anartist.8.SirHumphryDavy,British,aninventorandchemist.9.ZhangHeng,ancientChina,aninventor.10.StepperHawking,British,aphysicist.II.Pre-readingStepIGetthestudentstodiscussthequestionsonpage1withtheirpartners.Thenaskthestudentstoreporttheirwork.Encouragethestudentstoexpresstheirdifferentopinions.Whatdoyouknowaboutinfectiousdiseases?Infectiousdiseasescanbespreadtootherpeople.Theyhaveanunknowncauseandneedpublichealthcaretosolvethem.Peoplemaybeexposedtoinfectiousdisease,somayanimals,suchasbir