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外研版必修1模块5readingandvocabulary.ppt

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CompetitionMatchReadingandVocabulary阅读与词汇2Itisapieceofelectricalequipment.Metals金属Readthepassageandchoosethebesttitleforit.Readthepassageagainandanswerthefollowingquestions:3.Whichmetalsreactwithsteam?Magnesium,aluminiumandzinc.4.Doesironhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?No,itdoesn’t.CompletethepassagewithproperwordsaccordingtopassageA.Metalsareveryimportant,sowhenusingthemweshouldknowhowthey_____withdifferentsubstances.Takeironusedin________equipmentforexample,when______inoxygen,itwillreactslowly.Whenitisputtogetherwithwateror_____,therewillbeapartial________.ASimpleScientificExperiment1.__________:_______________________2.__________:3.__________:(1)…(2)…(3)……4.__________:…5.__________:…1.Inthefirstpartoftheexperiment,the___isdry,notwet.2.Itshowsthatiron___________whentheairisdry.3.Inthesecondpartoftheexperiment,youmust____thewatertomakesurethereisno____init.4.Youadd_________tothewaterbecausethiskeeps____outofit.5.Itshowsthat____doesnotrustinwaterthathasno____init.你知道实验室有哪些规则吗？CompletethepassagewithproperwordsaccordingtoPassageAandB.differentconditions.Otherwiseitwillkeeptheequipmentfromworkingwell.Asweallknow,ifironisheatedinoxygen,itwillreactslowlybutwillnotforman_____.Ontheotherhand,ifitisputtogetherwithwateror_____,therewillbea______reaction.Nextlet’sdoan__________tosupporttheabove.First,getatesttubefilledwithwaterandputitoverthe_____________to___forthreeminutes.Thenputthreeorfourcleannailsinthewaterwithsomeoiladdedtoitandleavethetubeforoneweek.Whathappens?Theirondoesnot____inair-freewater.Anotherexperiment,ifyouputthenailsinthetubewiththeairinitforoneweek,thenwhathappens?Ironrustsin_______water.Learnthenewwordsbyheart.ReadPassageAandBandtrytoretellit.Thankyou!