Module 5 A Lesson in a Lab (2)ppt课件.ppt

Module5AlessoninaLab,外研社高中英语第一册,1,TolearnaboutsomevocabularyandknowledgerelatedtoscienceandexperimentsToknowhowtodoasimpleexperimentandwritethereportaboutitinEnglish3.Toraiseinterestsinscienceandformtherightscientificattitude.,TeachingAims,2,lab,testtube,balance,3,Bunsenburner,crucible,本生灯（煤气喷灯）,坩埚,4,Whentheironisheated(加热）itwillWhentheironiscooled(遇冷）itwill,expand,contract,Howmuchdoyouknowaboutgeneralscience?,5,Howmanystatesdoesmatterexistas?,Useyourmind!,solid,liquid,gas,oxygen,metal,6,Readthewordstogether,7,StepIPre-readingPutthesewordsinthecorrectordertodescribethestagesofascientificexperiment.conclusionaimresultmethod,Whenwedoanexperiment,weshouldfirstofallhavean_.Weshoulduseproper_.Weshouldfindoutthe_andgeta_.,aim,methods,result,conclusion,8,Scanning:ListentopassageAquicklyandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygen,PassageA,9,CarefulReading;ReadpassageAcarefullyandanswer:,1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?2.Whathappenswhenyouheatcalciuminoxygen?3.Whichmetalsreactwithsteam?4.Doesironhaveasloworfastreactionwithsteam?5.Doescopperreactwithwater?,Potassium,calciumandsodium.,Itburnstoformanoxide.,Magnesium,aluminiumandzinc.,Ithasaslowreaction.,No,itdoesnt.,10,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）,11,-nails,-nails,-nails,-nails,-nails,-nails,_,_,_,_,_,_,_,_,cottonwool,cottonwool,Irondoesntrust,Oillayer,water,Oillayer,water,Irondoesntrust,water,water,Ironrusts,12,Consolidation1Answerthesequestionsingroupsoffour.1)Inthefirstpartoftheexperiment,whatistheuseofthecottonwoolinthetesttube?2.)Inthesecondpart,whatisthereonthesurfaceofthewaterinthetesttube?3)Whatistheuseoftheoil?4)Whyarethenailsinthetesttubewithordinarywaterrusty?,Thereisoilonthesurfaceofthewaterinthistesttube.,Theoilcankeepairoutofwater.,Thecottonwoolcankeepairdry.,Ironreactswithoxygeninordinarywaterandformsrust.,13,Letsdoasimpleexperimenttotestifmagnesiumcanburnintheairandwriteashortreport:,Aim:Methods:Result:Conclusion:,TofindoutifMagnesiumburnsintheair,1)useapairoftongstopickupsomemagnesium2)lightit,Magnesiumisburningwithabrightflameintheair,Magnesiumcanburnintheai