云南省陇川县第一中学高中英语《Unit 3 Inventors and inventions》说教案 新人教版选修8.doc

云南省陇川县第一中学高中英语《Unit3Inventorsandinventions》说教案新人教版选修8
Teachinggoals教学目标
1.Targetlanguage目标语言
重点词汇和短语
discovery,application,evaluate,presentation,alternative,messenger,gettogether,makeacasefor,addup
2.Abilitygoals能力目标
Enablethestudentstotalkaboutinventionsanddiscoveries.
3.Learningabilitygoals学能目标
Helpthestudentslearnhowtotalkaboutinventionsanddiscoveries.
Teachingimportant&difficultpoints教学重难点
Howtotalkaboutinventionsanddiscoveries.
Teachingmethods教学方法
Discussion.
Teachingaids教具准备
Acomputerandaprojector.
Teachingprocedures&ways教学过程与方式
StepⅠWarmingup
Talkaboutinventionsanddiscoveries.
T:Theimportanceofinventionstosocialprogresscanneverbechanged.Eachinventioncarriestheworldastepforwardandprovidesstimulationforlaterones.Withinventionsturningupallthetime,ourworldisalwaystakingonanewlook.Butdoyouknowwhataninventionis?
S1:Thecreationofsomethingnew.
S2:Acreation(anewdeviceorprocess)resultingfromstudyandexperimentation.
S3:Thecreationofnewthings.
…
Askthestudentstotalkaboutthepictureswiththeteacher’shelp,andthendiscussthefirsttwoquestions.
T:Andwhatisadiscovery?What’sthedifferencebetweenadiscoveryandaninvention?Nowlookatthepicturesonpage1.Workinpairsandtalkaboutthethreedifferentthings,tellingthemapartandgivingreasons.
Showthefollowing.
1.Whichofthesepicturesshowinventions?Doesanyofthemshowdiscoveries?
2.Workouttworulesthatwillhelpyoudecidewhatisadiscoveryandwhatisaninvention?
S1:Ithinkthefirsttwoareinventions,i.e.theamphibiouscarandStevenson’s“Rocket”whilethelastpictureabouttheDNAisakindofdiscovery.Becausethefirsttwoproductswerequitenewtopeopleatthattimeandnoonehadeverseenordesignedsuchkindofvehiclesbeforethoughsomeothershadmadesimilarcarsormachineswhichhadlessfunctionsandadvantagesasthesetwo.IthinkthepictureabouttheDNAisakindofscientificdiscoveryinbiologybecausesuchcellsandtheirstructuredoexistinlivingcreaturesandtheyhavebeenfoundoutbyacertainscientistandaremadeknowntothepublicnowadays.SoIthinkadiscoveryissomethingexistingbeforebutunknownwhileaninventionissomethingunknowna