高中英语 unit7 lesson2 protecting the sea精品教案 北师大版必修3

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1、Lessson2ProtectingtheSeaTeachingAims:1.TopracticespokenEnglish.2.Topracticelisteningforspecificinformation.3.Topracticeshowinginterestwhenlisteningtoanotherspeakerinaconversation.4.Topracticeinvolvingthepersonwhoislisteningtoyou.Teachingdifficulties:Learntoinvolvingthepersonwhoislisteningtoyou.

2、TeachingAids:computerandcassetteTeachingprocedures:Ⅰ.WarmingupT:Howistheseaimportanttopeople?Ss:students’answersmaybevarious.T:Watercoversabout75％oftheearth’ssurface,itprovidesuswithfoodandresourcessuchasoil,naturalgasandsomemetals.Besidestheseahasagreateffectonclimate,therefore.Theseaisveryimp

3、ortantforus.Butwhatwehavedonedoesharmtothesea.Nowlookatthepictures,showingstudentssomeslidesaboutseapollution.TheteacherwillasksomequestionstoencouragestudentstospeakEnglish.(Thepurposeistoproducetheseapollutionandletstudentsrealizetheimportanceofprotectingthesea.)Ⅱ.Discussing1.Youarelikelytono

4、ticesomethingaboutseapollutioninyourcityorhometown,pleasetalkaboutit.2.Ifwegoonpollutingtheseawhatistheresult?3.Whatmeasuresdoyouthinkweshouldtake?4.Whatshouldwedoasastudent?(Couragethemtomakesuggestionsforpreventingsea,riverandlakepollution)Ⅲ.ListeningYoursuggestionsaregoodandusefulandFangZhou

5、andZhiHongaretakingabouttheproblemtoo.Whatwilltheysay?Nowlet’slistentotheconversation(Inordertohelpstudentbetterunderstandingtheconversationfirstdotheexercise).1.Listentothetapeandchoosetherightanswer.①. Whatcanbedoneaboutoverfishing?A.man-maderaisingfishB.Intheworstareastheybanfishingforsevera

6、lyearsC.controlthenumberoffishpeoplecancatch     ②.  What’stheresultofoverfishing?A.therearelessfishtocatchB.peoplecanfishtoomuchC.Theycancatchmorefishthanbeforebybettertechnology③. Whataresomegovernmentdepartmentsdoingaboutseapollution?A.punishingpeoplewhokeeparecordoflevelsofpopulationB.think

7、ingofwaystoreducepopulationC.alldepartmentsmustberesponsibleforfindingwherepollutioncomesfrom.(answers:①.C②.A③.B)2.Listentothetapeagainandfillinthetape.(Theteacherdesigntheexerciseistoreducethedifficultyinnextexercise)①.That’swhen