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高中英语:module5 reading课件 外研版必修1 课件VIP免费

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Module5AlessoninalabModule5AlessoninalabModule5AlessoninalabReadthepassageasquicklyasyoucanandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygenPassageAReadthepassageagainandanswerthefollowingquestions:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?potassium,calciumandsodium2.Whathappenswhenyouheatcalciuminoxygen?Itbeginstoformanoxide.3.Whichmetalsreactwithsteam?Magnesium,aluminiumandzinc4.Doesironhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?No,itdoesn’t.Readthepassagecarefullyandfillthechartonpage45.Readthepassageagainandcompletethesentences.PassageB1.Inthefirstpartoftheexperiment,the__isdry,notwet.2.Itshowsthatiron___________whentheairisdry.3.Inthesecondpartoftheexperiment,youmust___thewatertomakesurethereisno__init.airdoesnotrustboilair4.Youadd_______tothewaterbecausethiskeeps__outofit.5.Itshowsthat___doesnotrustinwaterthathasno__init.someoilairnailairCompletethepassagewithproperwordsaccordingtopassageAandBItishardtothinkofaworldwithoutmetals.Differentmetalshavedifferentmetalshavedifferentuses,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.ReadingonP931.Astudentdidn’tfollowtheinstructionscarefully.Hetookthewrongliquidfromthecupboardandnearlypoisonedtheclass.2.Thechemistryteacherwasdemonstratinganexperimentwhensheheatedapoisonousliquid.Therewassomuchsmokethatthestudentshadtoleavetheroom.3.Astudentwasdoingachemistryexperimentwhenheaccidentallyheatedthewrongliquidandcausedanincidentinthelaboratory.Readthepassageagainandanswerthequestions:1.Whatsubstancesweretheyusing?Bakingsodaandhydrochloricacid2.Whatsubstanceswerethestudentsmaking?Salt3.Howcantheymakethereactionquicker?Bymakingthemixturehotter.4.WhatmistakesdidPaulmake?Heusedthewrongliquid.1.Whydidhemakethemistake?Becausetherewasnolabelonthebottle.2.WhathappenedwhenPaulheatedtheliquid?Itformedathickcloudofwhitegas.3.Whydidtheteachersendthestudentsoutoftheroom?Becausetheliquidwasacrylamideandthegaswaspoisonous.4.Whatlessondidtheincidentteachthestudentsandtheteacher?Nevertoleaveabottlewithoutalabelinthechemistrylad.1.Learnthenewwordsbyheart.2.ReadthepassageAandBandtrytoretellit.Assignmentsforyou(languagepoints)(languagepoints)镜头再现1.Theearthisforty-ninetimeslargerthanthemoon.2.ThemorebooksIread,themoreinformationIlearn.上面两个句子中重点强调的是比较级。这一语法现象我们在初中已学过,现在我们对这一语法进行总结。三种比较句型的转换:1)A+be+fourtimes+比较级+than+B2)A+be+fourtimes+as+adj/adv+as+B3)A+be+fourtimes+the+NofBThewellisfourtimesdeeperthanthatone.=Thewellisfourtimesasdeepasthatone.=...

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高中英语:module5 reading课件 外研版必修1 课件

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