高中英语-Period3-Function;Grammar-1-2(Module4-Great-Scientists)-教案-外研版必修4-VIP专享VIP免费

Period3Function;Grammar1，2TheGeneralIdeaofThisPeriodFunctioninthismoduleistalkingaboutnumbers,whichincludebignumbers,fractionsandpercentages.ThestudentscanfinishActivities1and2individuallyandchecktheanswerswiththewholeclass.AsforActivity3,pairworkorgroupworkisbetter.Letthestudentsdictatesomenumberstotheirpartnerstoconsolidatewhattheylearned.Afterthat,theteachercangivethemaquiztomakesurethestudentscandistinguishdifferentnumberscorrectlyandcanreadandwritetheminthecorrectway.Ingrammar1,we’llrevisethepassivevoiceofpresenttense,pasttense,futuretenseandpresentperfecttense.Therearefouractivitiesforthestudentstopractice.Ingrammar2,thestudentswilllearntouseby+-ingform.Firstly,inActivity1makesuretheusageofthisform.Itusuallyworksasadverbial,andmeans“usingsomeway”.Thisformisnotdifficult.WearesurethatafterthepracticeinActivity2,thestudentscanmasterthisformcorrectly.TeachingImportantPointsTeachthestudentshowtoreadandwritenumbersinacorrectway.Makesurethestudentscanusethepassivevoiceandby+-ingformcorrectly.TeachingDifficultPointsTomakethemmastertheusageofthepassivevoiceandby+-ingform.TeachingMethodsIndividualworkandpairworktomakeeverystudentworkinclass.TeachingAidsMultimedia&ablackboardThreeDimensionalTeachingAimsKnowledgeandSkillsMakethestudentslearntousethemathematicaltermsinacorrectway.Makesurethestudentscanusethepassivevoiceindifferenttensesandby+-ingformcorrectly.ProcessandStrategiesMotivatethestudents’enthusiasmintakingpartintheclass.FeelingsandValueThroughthestudyofthisperiodthestudentswillsurelyknowmoreaboutthebasicuseofthepassivevoiceandby+-ingformandhowtoreadandwritedifferentnumberscorrectly.TeachingProceduresStep1Revision(Greetingsasusual)T:First,let’shaveadictationofthenewwordsandexpressionswelearntlastclass.1.staple2.leading3.figure4.breeding5.species6.yield7.original8.sterile9.breakthrough10.convert11.export12.hybrid13.replace14.bringup15.asaresultof专心爱心用心1Step2FunctionT:Functioninthismoduleisaboutnumbers.Now,lookatActivity1onPage35.Choosethecorrectwayofsayingthenumbers.1.5000000(a)fivemillion____________________(b)fivemillions2.47.5%(a)fortysevenhalfpercent(b)fortysevenpointfivepercent3.632(a)sixhundredandthirtytwo(b)sixhundredthirtytwo4.4/5(a)fourfifths____________________(b)fourfiveAskthestudentstocompletethemindividuallyandthencollecttheanswersinthewholeclass.Afterthat,givethestudentsseveralminutestoreadthemaloud.Suggestedanswers:1.a2.b3.a4.aT:Nowlet’scometoActivity2.Readthesentencesaloudandattentively.1.Ricewasfirstgrownabout5000yearsago.2.Chinaexportsabout1.5%ofitsrice.3.Australiaproducesabout250000tonsofrice.4.2/3theworld’spopulationregularlyeatrice.T:OK,class.Nowareyousureyoucansaythenumberscorrectly?Dictatesomenumberstoyourpartner,includingbignumbers,fractionsandpercentages.ThenIwillgiveyouaquiz.(Afterthestudentspracticewitheachother,theteachergivesthemthefollowingquiz.Readthemathematicaltermscorrectly.)(Showthenumbersonthescreenorontheblackboard.)1.10352.3/73.46%4.28400005.$95.5Asktheindividualtoreadthem,onenumberastudent.Afterthestudentscompletethem,letthemreadnumberstogether.Suggestedanswers:1.onethousandandthirtyfive2.threesevens3.fortysixpercent4.twomillioneighthundredandfortythousand5.ninetyfivepointfivepercentStep3Grammar1:ThePassiveVoiceT:Nowlet’scometorevisionofthepassivevoice.FirstpleasestudythesentencesinActivity1onPage33.(Showthefollowi...