高11-12学年高一英语必修1课件：Module 5 A lesson in a Lab Reading(外研版必修1)

Module5ALessoninaLabReadingandVocabulary,胡维芳,钾,newwords,sodium,copper(铜),magnesium,aluminium（铝）,Iron(铁)zinc（锌）calcium(钙),potassium,sodium,calcium,magnesium,aluminium,zinc,iron,copper,Whatwasitmadeof?,Guess,Itishtthinkofaworldwm.Differentmetalshaveduses,fe,steelisuincars,andironisusedineequipment.Whenweusemetals,itisimportanttoknowhowtheyrwithdifferents,forexample,waterando.Therofmetalswiththesesubstancescanbepio.Hereisatablewiththemetalsthatreactmostatthet,andthemetalsthatreactleastatthebottom.,anoxide*=anothersubstance+oxygen,1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?2.Whathappenswhenyouheatcalciuminoxygen?3.Whichmetalsreactwithsteam?4.Doesironhaveasloworfastreactionwithsteam?5.Doescopperreactwithwater?,Potassium,calciumandsodium,Itburnstoformanoxide.,Magnesium,Aluminiumandzinc.,Ithasaslowreaction.,No,itdoesnt.,1.Itishardtothinkofaworldwithoutmetals.2.Differentmetalshavedifferentuses,forexample,steelisusedincars,andironisusedinelectricalequipment.3.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.4.Thereactionofmetalswiththesesubstancescanbeputinorder.5.Hereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.,1.Itishardtothinkofaworldwithoutmetals.很难想象一个没有金属的世界。,Itis/was+adj.+forsb.+todosth.It为形式主语，真正的主语是动词不定式短语tothinkof.eg.爬那座小山是容易的。Itseasytoclimbthehill.(2010,全国大纲卷II，14)ThedoctorthoughtDwouldbegoodforyoutohaveaholiday.A.thisB.thatC.oneD.it,2.Differentmetalshavedifferentuses,forexample,steelisusedincars,andironisusedinelectricalequipment.不同的金属有不同的用途，比如，钢用来造车，铁用来造电力设备。forexample,suchas,thatis比如electricaladj.electricityn.equipment(uncountablenoun)equipV.,3.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.使用金属时，要了解金属和不同物质（例如水和氧气）如何发生反应，这一点很重要。When引导时间状语从句。Itis/was+adj.+forsb.todosth.reactv.reactto.对有反应eg.Plantsreacttolight.reactwith.同反应reactagainstsb./sth.反对某人/某物reactionn.reactiveadj.,4.Thereactionofmetalswiththesesubstancescanbeputinorder.（不同的）金属与这些物质的反应程度可以按顺序排列起来。putsth.inorder把某物按顺序排列inorderoutoforder有序的（地）；无序的（地）.eg.Lily,putyourthingsinorderafteryouplaywiththem.orderv.命令ordersb.todosth.eg.Theleaderorderedustoarriveattheparkatsixoclock,5.Hereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.下面是一张金属反应表，列于顶部的金属反应最剧烈，下面的则最缓慢。,Itishardtothinkofaworldwithoutmetals.Differentmetalshavedifferentuses,forexample,steelisusedincars,andironisusedinelectricalequipment.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.Thereactionofmetalswiththesesubstancescanbeputinorder.Hereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.,DoyouthinkitisscientifictomakeGoujianSwordbyusingcopper,AfterlearningPassageA,?,DecidewhetherthesestatementsaretrueorfalseaccordingtoPassageA.,1.Differentmetalshavedifferentuses.2.Thereactionofmetalswithdifferentsubstancesisthesame.3.Magnesiumcanformanoxidewhenheatedinoxygen.4.Ironreactswithcoldwater.5.Copperreactsmos