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unit13the waterplanet教案(人教版高二英语上册教案教学设计)课题《Unit13The WaterPlanet》—\Teaching ContentTheFirst PeriodWarmingup ListeningSpeaking
二、Teaching Aims:
1.Learn andmaster thenew wordsand theuseful expressionsofthis part.Words:cube,sailor,disadvantages,entertainmentPhrases:come upwith,happen toUsefulexpressions:The water is being used to/for…Weshould/could…If we•••we can…It wou1d bebetter…
2.Learn somethingabout waterby doingexperiment.
3.Do somelistening.
4.Improve the students speakingability bytalking.
三、Teaching ImportantPoints:
1.Make thestudents befree totalk about water.
2.Improve thestudents listeningability bylistening.
四、Teaching DifficultPoints:
1.How tofinish thetask ofspeaking.
2.How toimprove thestudents listeningability.
五、Teaching Methods:
1.Listening-and-answering activityto helpthestudentsgothrough with the listeningmaterial.
2.Individual,pair orgroup workto makeevery studentwork inclass.
六、Teaching Aids:
1.the multimedia
2.the blackboard
3.an emptyglass,a bottle of water and abottleof vegetableoil
七、Teaching Procedures:Step IGreetings andLead-inT:Hello,everyone.Ss:Hello,teacher.T:Attention,please.As weall know,every yearduring theSpringFestival andLantern Festivalin ourcountry,people like to seethelion danceand guess the riddles.Do youlike toguessthe riddleSs:Yes.T:OK.Now Ihave ariddle.Please guessit.Teacher usesthe multimediato showtheriddleon the screen.It s very important to allthe animals and plants.It salso importantto humanbeings.It sliquid atroom temperature.Every dayyou keepin touchwith it.You can t livewithout it.a thingT:What sitSs:It svery easy.It swater.T:Yeah,today wewill talk about water.Now please tell mewhatyou knowaboutwater.51:Water isused todrink.52:Water canbe usedto waterthe flowers.S3:I thinkwater canbe usedto makeelectricity.Step IIWarming upT:Thank youfor yourideas.Next wewill looksome interestingexperiments.Maybe you can learnmore aboutwater from the followingexperiments.experiments shownon thescreenT:Pour somewaterandsome vegetable oil into the emptyglass.What willhappen Tryto describeit indetail.S:The partabove isvegetableoiland thepart belowis water.T:Good.Do youknow whyS:I thinkwater isheavier thanoil,so vegetableoil ison thetopof the water.T:Who hasdifferent ideasS:I think we shouldsay thatthe densityof wateris higherthanthe densityofvegetableoil,so theresult formed.T:Do youagree withthe reason for it55:Yes.We agreewiththeidea.T:As weknow,if wepour milkand water into one glass,we can,t tellwhere wateris andwhere milkis.But justnow wepoured oilandwater intooneglass.It isso different.Do youknow whySs:Because oilcantdissolve inwater,but milkcan.T:Very good.Would youliketowatch anotherexperimentSs:I dlove to.T:OK.Cover aglass of water with a piece of thickpaper.Put onehandon thepaper andturn theglass upsidedown.Slowly takeyour handawayfromthepaper.What happensWhySs:The piece of paper doesn tfall and the water in theglassdoesn tflow.T:Yes.You areright.Now you are givena fewminutes tohave adiscussionabout the reasonforit.T:Who cantell usthereasonwhy the piece of paperdoesn t fallandthe waterdoesntflowS:When theglass ofwater coveredwith apieceofpaper isturnedupside down,the pressure from airto thepieceofpaper isbigger thanthepressurefromthe water in theglass tothepieceofpaper.So thepaperwon tfall andthe waterwon tflow.T:Excellent!Thank youfor yourexplanation.I amvery gladtosee thatyouareall interestedin makingexperiments.After class,you cancarry outanother twoexperiments onPage
17.When youperformthem,try todescribe whathappens andwhy.OKSs:OK.T:Now,let slook ata picture.Teacher showsa pictureon thescreen.T:What canyou seeSs:There isa riverin the picture,but itsverydirty.T:Anything elseS:There aresome plasticbags andempty tinson thesurface ofthe river.T:Yes.We allknow wateris importantto humanbeings andall theanimalsand plants.Unfortunately wateris beingpolluted now.Whatdo youthinkwecan doto protectthe wateron ourplanetTeacher givesstudents enough time toprepare.When theyprepare,teacher goesamong thestudents to help themto expresstheir ideascorrectly.Sample answer:To protectthe wateron ourplanet,I thinkwe shouldsave everydropofwaterand stopthrowing rubbishinto water.Besides,we shouldtryour besttohelpthe peoplearound usrealize the importance ofusingand protectingour water.Step IIIListeningU:Next,let sdo somelistening.Turn toPage18and lookat theListeningpart.You canlisten tothe famouspoems aboutlife ontheocean.Listen carefullyand writedown somekey wordswhen youlisten.Before youlisten,let slearn twophrases first.Look attheblackboard.
1.happen toe.g.What happenedto youlast weekIfanything happenstothemachine,pleasetellme.
2.come upwithe.g.I hopeyou cancome upwithabetter planthan this.Teacher writesthem onthe blackboardand beginsto explain them.T:Now listen,please.Teacher playsthe tapefor thefirst time.Then playit for thesecond time.During thistime,teacher maypause forstudents towritedown theinformation.Play someparts ofthe tapeone moretime ifnecessary.Finally teacherchecks theanswers withthe wholeclass.Step IVSpeakingT:In ourdaily life,water canbe used in differentways.Now we11talkaboutthe waysin whichwater canbe used.Look atthe picturesonPage
18.The sixpictures meansix differentways touse water.Youcan chooseone ofthe picturesto discusstheimportanceof usingandprotecting ourwater,and thentry touse somesentences todescribethe pictureyou choose.If youlike,youcanmake adialogue withyourpartner aboutthepicture.When youdiscuss,you mayuse thequestionson thescreen tohelp you.
1.How isthe waterbeing used
2.Is thisa goodway touse water
3.Why dowe use waterinthis way
4.Who benefitsfrom usingwaterinthis way
5.What aresome disadvantagesof usingwaterinthis wayTeachershows thequestions onthescreenby multimediaand givesstudentsenoughtimeto discussand prepare.Suggested answers:Picture1We canuse waterto makeelectricity,which cangiveus lightand makeus feelwarm.I thinkit isa goodway touse water.Picture3Water hasa lot of usagesand home use isthe commonestone.Every daywe mustdrink enoughwater.In addition,we needa lotofwater,just forcooking andkeeping clean.Water canhelp usto keephealthy.But ifthe wastewater fromhomeuseis poured into riverandsoil,it willbe harmfulfor someanimalsandplants.So wemust paymoreattention toit.Picture4In Picture4,wateris being usedin industry.Wateris veryimportanttoindustry.It canbe usedto makepaper,cool machineandso on.But thedisadvantage isthat alotofwater mixedwith somepoisonousthings beingpouredintotheriverandthesea.It isdangerousfortheliving thingsinthewater.Picture6A:Do youknow howthewaterisbeingusedinPicture6B:Water isbeingusedfor entertainment.A:Is ita goodway tousewater。