外研版英语必修1 module5 reading课件 (共53张ppt)

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1、Module5AlessoninalabModule5AlessoninalabReadingandVocabularyLookatthepictures.Doyouknowthenamesoftheequipment？testtubetongsbalancecrucibleBunsenburnerpotassium（钾）Let’sgettoknowsomemetals?sodium(钠)calcium(钙)magnesium(镁)aluminum（铝）zinc（锌）iron（铁）copper（铜）Doyouknowhowwecancarryoutanexperiments

2、uccessfully?Whatisthecorrectordertodescribethestagesofascientificexperiment?aimmethodresultconclusionPassageAelectricaladj.用电的，与电有关的electricityn.电equipmentn.设备，装备reactvi.（化学）反应reactionn.反应oxiden.氧化物steamn.蒸汽，水气Readthepassageasquicklyasyoucanandchoosethebesttitleforit.TheDifferentUsesofMeta

3、lsTheReactionofMetalsTheReactionofMetalswithOxygenPassageAReadthepassageagainandanswerthefollowingquestions:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?potassium,calciumandsodium2.Whathappenswhenyouheatcalciuminoxygen?Itbeginstoformanoxide.3.Whichmetalsreactwithsteam?Magnes

4、ium,aluminiumandzinc4.Doesironhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?No,itdoesn’t.Readthepassagecarefullyandfillthechartonpage45.Readthepassageagainandcompletethesentences.PassageBPassageBWhat’shappeningtothenailinthepictures?Pre-reading:Readthepassa

5、geandcompletethetable.cottonwoolnailsIrondoesnotrust.waterIrondoesnotrust.waterwaterIronrusts.1.Inthefirstpartoftheexperiment,the__isdry,notwet.2.Itshowsthatiron___________whentheairisdry.3.Inthesecondpartoftheexperiment,youmust___thewatertomakesurethereisno__init.airdoesnotrustboilair4.Yo

6、uadd_______tothewaterbecausethiskeeps__outofit.5.Itshowsthat___doesnotrustinwaterthathasno__init.someoilairnailairCompletethepassagewithproperwordsaccordingtopassageAandBItishardtothinkofaworldwithoutmetals.Differentmetalshavedifferentmetalshavedifferentuses,forexample,ironcanbeusedin_____

7、___equipment.Butaboveallweshouldknowwhetheritelectricalwill____underdifferentconditionsotherwiseitwillkeeptheequipmentfromworkingwell.Asweallknow,ifironisheatedinoxygen,itwillreactslowlybutwillnotforman_____.reactoxideOntheotherhand,ifitisputtogetherwithwatero