Unit7Howdothingschange？Getready（课件）-沪教版英语四年级下册

Unit7Howdothingschange?GetreadySolid(Ice)Liquid(Water)Gas(Vapor)KeyQuestion:Howcanwechangethestateofmatter?(Byheatingorcooling)ContentsWarm-up&Lead-inStartwithaquickactivitytoactivatepriorknowledgeListen,pointandsay(ActivityA)DeveloplisteningskillsandvocabularyrecognitionChooseandsay(ActivityB)InteractivespeakingpracticewithvisualaidsReadandwrite(ActivityC)&SummaryConsolidatelearningthroughreadingandwritingtasksWarm-up&Lead-inQuestionLookatthepicturecarefully.1.Whatisit?2.Whatcanitchangeinto?ActivityA:PointandsayThink:Howcanwaterchange?KeyConcept:Waterexistsinthreestates:Solid(Ice),Liquid(Water),andGas(Steam).Payattentiontothechanges!LiquidWordliquidSentenceThisisaliquid.KeyConcept:Liquidsareoneofthethreestatesofmatter.Theyhaveadefinitevolumebuttaketheshapeoftheircontainer.SolidWordsolidSentenceThisisasolid.ScienceExperiment:StatesofMatterGasWordgasSentenceThisisagas.ScienceExperiment:ObservingStatesofMatterNewWordssugarsaltcreammeltVocabularyLearning:Science&DailyLifePractice:ListenandpointInstruction:Listentothewordandpointtothecorrectpicture.WaterIceSteamSugarSaltCreamMeltingExperimentObservationPractice:SaySentence:Thisisaliquid/solid/gas.LiquidWaterSolidIceCubeGasSteamTip:Pointtothepictureandsaythesentenceoutloud."Thisisa..."ActivityB:ChooseandsayTask:Choosethecorrectitemforeachstateandsaythesentence.ScienceTip:Rememberthethreestatesofmatter:Gas,Liquid,Solid.Lookatthepicturescarefullyandidentifywhichstateeachobjectisin.Practice:Chooseandsay(1)SentencePattern:[Item]isa[state].SaltSolidMilkLiquidIcePopSolidSteamGasJuiceLiquidLet'sPractice!Lookattheitemsandmakesentencesusingthepatternabove.Example:"Milkisaliquid."Practice:Chooseandsay(2)SentencePattern:[Item]isa[state].SugarSaltCreamLet'sPractice!Lookatthepicturesandcompletethesentences.Isitsolidorliquid?FeelingWarmLuHangiscold.Hismotherheatssomewaterandmakeshimsomelemontea.LuHangdrinkstheteaandfeelswarm.FeelingGoodIntheafternoon,LuHangishungry.Hismotherheatswaterinapot,andputsinsomechickenandcarrots.LuHangeatsthesoupandfeelsgoodagain!ActivityC:ReadandwriteActivityC:TaskTask:Matchthecausestotheeffects.1.LuHangdrinksthetea.→a.___________________________2.LuHangeatsthesoup.→b.___________________________Tip:Lookbackatthestorytofindtheanswers.AnswerKey1.LuHangdrinksthetea.➔a.Hefeelswarm.2.LuHangeatsthesoup.➔b.Hefeelsgoodagain.SummaryCoreVocabularyliquid,solid,gas