高中英语 Reading And Vocabulary5课件 外研版必修1 课件VIP免费

ReadingAndVocabulary•Doyoulikescientificexperiments?•Haveyoueverdoneitbyyourselves?•Areyouclearwiththestages（阶段，时期）ofascientificexperiment?Whatarethey?Andwhat’stherightorderofthem?stagesofascientificexperimentaimmethodresultconclusionPassageA•Choosethebesttitleforthispassage.A.TheDifferentUserofMetalsB.TheReactionofMetalsC.TheReactionofMetalswithOxygenQuestions:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?key:potassium,sodium,calcium.2.Whathappenswhenyouheatcalciuminoxygen?key:Itburnstoformanoxide.3.Whichmetalsreactwithsteam?key:magnesium,aluminium,zinc.4.Doesironhaveasloworfastreactionwithsteam?key:Ithasaslowreaction.5.Doescopperreactwithwater?key:No,itdoesn’t.Readthepassageagainanddecidewhetherthesestatementsaretrue(T)orfalse(F).1).Differentmetalshavedifferentuses.2).Thereactionofmetalswithdifferentsubstancesisthesame.3).Magnesiumcanformanoxidewhenheatedinoxygen.4).Copperreactsmostwhenheatedinoxygen.TFTFPassageB:ASimpleScientificExperimentReadPassageBandfillinblanks:AimApparatusMethodResultConclusiontofindoutifironrust1)indryair;2)inair-freewater;3)inordinarywater.CottonwoolTesttubeholderApparatus(设备，仪器)CleanironnailsTesttubesOilBunsenburnerPassageB:ASimpleScientificExperimentReadPassageBandfillinblanks:AimApparatusMethod…ResultConclusiontofindoutifironrust1)indryair;2)inair-freewater;3)inordinarywater.3cleannails,testtubes,testtubeholder,cottonwool,oil,Bunsenburner1)Irondoesn’trust2)Irondoesn’trust3)Ironrust1)Irondoesn’trustindryair2)Irondoesn’trustinair-freewater3)IronrustinordinarywaterCompletetheexercisesonpage45IronindryairIroninair-freewaterIroninordinarywaterStageA(Startingexperiment)StageB(1weeklater)StageC(Result)Completetheexercisesonpage45IronindryairIroninair-freewaterIroninordinarywaterStageA(Startingexperiment)CottonwoolnailsOillayer--(油层)WaternailsWaternailsStageB(1weeklater)CottonwoolnailsOillayerWaternailsWaternailsStageC(Result)Irondoesn’trustIrondoesn’trustIronrustHowcanyoudoascientificexperimentsuccessfully？First,weneedtohavean_____andprepare_________fortheexperimentbeforewedotheexperiment.Second,wemustusecorrect________todotheexperimentandwatchcarefully.Thenwecangetthe____anddrawa________.apparatusaimmethodsresultconclusionListeningAndWritingListentotheconversationandfillintheblankAim:Tofindoutifthereisa______inweightwhenmagnesium___inair.Apparatus:magnesium,Bunsenburner,ab______,acrucibleMethod:First,putthemagnesiuminthe______.Then,putthecrucibleonthebalanceand_____it.Next,____themagnesium.LighttheBunsenburnerand___thecrucibleoverit.Finally,weightthemagnesium____.Result:Itweighsalittle_____thanbefore.Conclusion:Thereisachangeinweightwhenmagnesiumburnsinairchangeburnsalancecrucibleweightheatholdagainmore