Unit4Lesson3Householdappliances教學(xué)案例（1）Statusoftheperiod:ThisisthefirstperiodofUnit4,Lesson3,whichisbasedonagoodcommandofLessonOne-ComputersandLessonTwo-Robots.Teachingaims:Toenablethestudentsto:Learnthenamesofsomehouseholdappliancesandknowabouttheirusages.Learnhowtomakeexclamations.Learnhowtodescribeprocessesofusingahouseholdappliance.Learnthetext.Teachingaids:(It’sbettertomakeaPPT.Butifimpossible,prepareforthelittleblackboardandletthestudentsdrawsomepicturesandmakesomecards.)10cardswiththeusagesofhouseholdapplianceswrittenasPage147..washclothes;cleanthehouse;watchmovieswithbetterpictureandsound;brownbread;controlhouseholdappliances;playDVDs;cleandishes;preparefoodquickly;keepfoodcold;maketheaircolderorwarmer)10pictureswiththerelevanthouseholdappliancesonthemasPage147.WritethenamesofthehouseholdappliancesonthebackofthepicturesAlargepictureliketheoneinthetextAlittleblackboardwithsomethingwrittenasfollows:AON/OFF①②③④⑤⑥⑦⑧⑨⑩VOL+VOL-TV/AV-/--BTurntheTVonoroffTurnthevolumeupordownSelectchannelsSelectchannelslargerthan10Playvideos,VCDsorDVDsAremotecontrolThetapeofthetextandthetaperecorderTeachingprocedure:Warmingupandrevision:Quickresponses:Haveyougotacomputerathome?Doyouknowthefourmainpartsofthecomputer?Whataretheusesofthem?Whatcanyoudoonthecomputer?Wecanusecomputerstocontrolrobots,can’twe?Whycanrobotshelpuswithourstudies?Whydowesayrobotsareveryusefulinfactories?Whatcanarobotdotohelpuswiththehousework?Tuningin:Step1:Teacher:Arobotwhocanhelpuswiththehouseworkiscalledahouseholdrobot.Howgreatifwecanhaveahouseholdrobotathome!Butdoyoureallyhaveoneathome?（No）Ithinkthedreamwillcometrueinthenearfuture.Butnowadays,westillhavealotofhelpersathome.Wecallthemhouseholdappliances.(Letthestudentsreadtheunderlinedwords.)Step2:Putthecardsontheblackboardinlineandputthepicturesontheblackboardrandomly.First,letthestudentsmatchtherightpictures(thehouseholdappliances)tothecards(thefunctionofeachhouseholdappliance).Thenturnthepicturesovertoshowthestudentsthenamesofthehouseholdappliances.Letthestudentsreadtheirnames.Step3:Thefollowingthreeactivitiescanbechosentoconsolidatethenamesandusagesofthehouseholdappliances:1.GuessinggameA:Dividethestudentsintoseveralgroups.Leteachgrouprecommendtwostudentstoplaythegame.Whentheteachershowsonepictureofthehouseholdappliance,onestudentwhofacesthepictureimmediatelydescribesthefunctionofthehouseholdappliance,andtheotherstudentwhoisbacktothepicturespeaksoutthenameatonce.Thepairwhotellsmoreingiventimewillbethewinner.Thatmeansthewholegroupwinsthegame.2.GuessinggameB:Dividethestudentsintoseveralgroups.Leteachgroupchooseonestudenttobethenarrator.Thenarratorcomestothefrontandtheteachershowsthenamesofthehouseholdappliancestohim/hersecretly.Thenhe/sheshouldfacehis/hergrouptodescribetheusagesofthehouseholdappliances.Theothersinhisgroupshouldspeakoutthenameassoonaspossible.Thegroupwhichtellsmoreingiventimewillbethewinner.3.Pairwork:1)Letthestudentspractisethedialoguesasthemodel:A:What’stheuseofawashingmachine?B:Weuseitforwashingclothes./It’sforwashingclothes.2)LetthestudentsdotheexerciseinTuninginonPage147andpractisetheminpairslikethemodel.3)Checktime:Theteachershowsthepicturestothestudentsandletthemtalkinpairs.Presentationtothetext:Step1:1.(Showingthelargepictureliketheoneinthetext)Theteacherintroducesthepicture:LiHui’sfamilyhasjustmovedintoanewhousingestate.Theyhaveboughtnewhouseholdappliancesfortheirnewflat.Look,thisisLiHui’scousin.AndthisisanewdigitalTVmodel.WhatabigTVitis!It’s34inches.2.Theteacheraskssomequestionsabouttheintroduction:LiHui’sfamilyhavemovedintoanewhousingestate,haven’tthey?Whathavetheyboughtfortheirnewflat?Whoisthegirl?HowbigisthedigitalTV?3.Theteachermakestheexclamations:WhatabigTVitis!Wecanexpressitintheotherway:HowbigtheTVis!(Letthestudentsimitatethetwoexclamations)4.Givethestudentssomefragmentstopractisethetwoexclamations:thesittingroom,nicethenewhousingestate,beautifulthejob,dangerousthehome-helprobot,efficientthecomputerroom,moderntheremotecontrol,usefulthevacuumcleaner,helpfulStep2:1.Theteachercontinuesintroducingthelargepicture:ThebigdigitalTVmodelismadeinJapan.ItisdifferentfromanordinaryTV.Thepictureandsoundarefarbetter.Look,LiHuiisshowinghiscousinhowtousethedigitalTV.LiHuiisusingtheremotecontroltocontroltheTV.2.Theteacheraskssomequestions:1)WhichcountryisthedigitalTVmadein?2)IsitthesameasanordinaryTV?3)HowisitdifferentfromanordinaryTV?4)WhatisLiHuishowinghiscousin?5)WhatisLiHuiusingtocontroltheTV?6)Whatdoyouthinkoftheremotecontrol?(It’sconvenient.)3.Theteachershowsarealremotecontrolandsays:Look,therearemanybuttonsontheremotecontrol.WhenIpressthem,theycanhelptocontroltheTV.(Showingthelittleblackboard)HereIenlargesomeofthebuttonsinColumnAonthelittleblackboard.PleasematchthebuttonstotheirusagesinColumnB.Thenteachthenewwords:turnon,turnup,select,volume.4.Letthestudentspractiseinpairsasthemodel(trytomemorizetheusagesinColumnB):A:What’stheuseofthisbutton?/What’sthatbuttonfor?B:It’sforturningtheTVonoroff.5.WipeofftheinformationinColumnB.Askpairsofstudentstocometothefront,pointtothebuttonsonthelittleblackboardanddopairwork.Text:Step1:ListentothetapeanddoComprehensionCheckonWB.Step2:ListentothetapeagainanddoComprehensionCheckonSB.(Noted