外研新高一版15 - 16上必修課件

外研新標準高一版第一冊必修一Module5（2）ALessoninaLabReadPassageAasquicklyasyoucanandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygenReadthepassageagainandanswerthefollowingquestions:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?potassium,calciumandsodium2.Whathappenswhenyouheatcalciuminoxygen?Itbeginstoformanoxide.3.Whichmetalsreactwithsteam?Magnesium,aluminiumandzinc4.Doesironhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?No,itdoesn’t.ReadPassageBcarefullyandfillthechartonpage45.Readthepassageagainandcompletethesentences.1.Inthefirstpartoftheexperiment,the__isdry,

notwet.2.Itshowsthatiron___________whentheairisdry.3.Inthesecondpartoftheexperiment,youmust___thewatertomakesurethereisno__init.airdoesnotrustboilair4.Youadd_______tothewaterbecausethiskeeps__outofit.5.Itshowsthat___doesnotrustinwaterthathasno__init.someoilairnailairCompletethepassagewithproperwordsaccordingtopassageAandBItishardtothinkofaworldwithoutmetals.Differentmetalshavedifferentuses,forexample,ironcanbeusedin________equipment.Butaboveallweshouldknowwhetheritelectricalwill____

underdifferentconditionsotherwiseitwillkeeptheequipmentfromworkingwell.Asweallknow,ifironisheatedinoxygen,itwillreactslowlybutwillnotforman_____.reactoxideOntheotherhand,ifitisputtogetherwithwateror_____,therewilla______reaction.Nextlet’sdoan__________tosupporttheabove.First,getatesttubefilldewithwaterandputitoverthe_____________to___forthreeminutes.steampartialexperimentbunsenburnerboilThenputthreeorfourcleannailsinthewaterwithsomeoiladdedtoitandleavethetubeforoneweek.Whathappens?Theirondoesnot____inair-freewater.Anotherexperiment,ifyouputthenailsinthetubewiththeairinitforoneweek,thenwhathappens?Ironrustsin_______water.rustordinaryReadaboutanincidentduringachemistrylessonandchoosethebestsummary.ReadingonP93Astudentdidn’tfollowtheinstructionscarefully.Hetookthewrongliquidfromthecupboardandnearlypoisonedtheclass.2.

Thechemistryteacherwasdemonstratinganexperimentwhensheheatedapoisonousliquid.Therewassomuchsmokethatthestudentshadtoleavetheroom.3.Astudentwasdoingachemistryexperimentwhenheaccidentallyheatedthewrongliquidandcausedanincidentinthelaboratory.Readthepassageagainandanswerthequestions:1.Whatsubstancesweretheyusing?Bakingsodaandhydrochloricacid.2.Whatsubstanceswerethestudentsmaking?

Salt.3.Howcantheymakethereactionquicker?Bymakingthemixturehotter.4.WhatmistakesdidPaulmake?Heusedthewrongliquid.1.Whydidhemakethemistake?Becausetherewasnolabelonthebottle.2.WhathappenedwhenPaulheatedtheliquid?Itformedathickcloudof whitegas.3.Whydidtheteachersendthestudentsoutoftheroom?Becausetheliquidwasacrylamideandthegaswaspoisonous.4.Whatlessondidtheincidentteachthestudentsandtheteacher?