Module 5 A Lesson in a Lab 课件

Module5AlessoninaLab外研社高中英语第一册newwords⒈Tolearnaboutsomevocabularyandknowledgerelatedtoscienceandexperiments⒉ToknowhowtodoasimpleexperimentandwritethereportaboutitinEnglish3.Toraiseinterestsinscienceandformtherightscientificattitude.TeachingAimslabtesttubebalanceBunsenburnercrucible本生灯（煤气喷灯）坩埚•Whentheironisheated(加热）itwillWhentheironiscooled(遇冷）itwillexpandcontractHowmuchdoyouknowaboutgeneralscience?Howmanystatesdoesmatterexistas?Useyourmind!liquidoxygenmetalReadthewordstogetherStepIPre-readingPutthesewordsinthecorrectordertodescribethestagesofascientificexperiment.conclusionaimresultmethod•Whenwedoanexperiment,weshouldfirstofallhavean______.Weshoulduseproper_________.Weshouldfindoutthe_________andgeta________.aimmethodsresultconclusionScanning:ListentopassageAquicklyandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygenPassageACarefulReading;ReadpassageAcarefullyandanswer:•1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?2.Whathappenswhenyouheatcalciuminoxygen?3.Whichmetalsreactwithsteam?4.Doesironhaveasloworfastreactionwithsteam?5.Doescopperreactwithwater?Potassium,calciumandsodium.Itburnstoformanoxide.Magnesium,aluminiumandzinc.Ithasaslowreaction.No,itdoesn’t.PassageB:Someimportantwordsabouttheexperiment:•apparatus(仪器,设备)•holder(台、架等)支持物,固定器•cottonwool棉絮•bunsenburner本生灯（煤气喷灯）IronindryairPut/push/leaveIroninair-freewaterHalf-fill/boil/makesure/put/add/keep-outofIroninordinarywaterHalf-fillandadd/leaveStageA(Startingexperiment)StageB(1weeklater)StageC(Result)________________________________________---nails---nails---nails---nails---nails---nails________________________________________________cottonwoolcottonwoolIrondoesn’trustOillayerwaterOillayerwaterIrondoesn’trustwaterwaterIronrusts•Consolidation1Answerthesequestionsingroupsoffour.1)Inthefirstpartoftheexperiment,whatistheuseofthecottonwoolinthetesttube?2.)Inthesecondpart,whatisthereonthesurfaceofthewaterinthetesttube?3)Whatistheuseoftheoil?4)Whyarethenailsinthetesttubewithordinarywaterrusty?Thereisoilonthesurfaceofthewaterinthistesttube.Theoilcankeepairoutofwater.Thecottonwoolcankeepairdry.Ironreactswithoxygeninordinarywaterandformsrust.Let’sdoasimpleexperimenttotestifmagnesiumcanburnintheairandwriteashortreport:Aim:Methods:Result:Conclusion:TofindoutifMagnesiumburnsintheair1)useapairoftongstopickupsomemagnesium2)lightitMagnesiumisburningwithabrightflameintheairMagnesiumcanburnintheairMagnesiumcanburnintheairHomework:Gointoyoursciencelabandtellyourclasstheapparatus.