2011高一英语教案Module5ALessoninaLab2ndperiod(外研版必修1)

高考资源网（ks5u.com）您身边的高考专家版权所有@高考资源网-1-TheSecondPeriodTheGeneralIdeaofThisPeriodInthisperiod,we’regoingtoreadapassageonthereactionofmetals.TeachingAims1.Improvethestudents’abilityofreadingcomprehension.2.Getthestudentstohaveaglobalunderstandingofthereadingpassage.3.Trainthestudentstoguessthemeaningofawordaccordingtothecontext.TeachingImportantPoints1.Trainthestudents’readingability.2.GettheSstounderstandthereadingtext.TeachingDifficultPointHowtoimprovethestudents’readingability.TeachingMethods1.Individual,pairworktomakeeverystudentworkinclass.2.Fastreadingandcarefulreadingtounderstandthepassagecorrectly.TeachingAids1.ataperecorder2.aprojector3.amultimediacomputerTeachingProceduresStep1Greetingsandlead－inGreetthewholeclassasusual.T:Wearegoingtodoanexperimenttoday.Ineedthesethingstodotheexperiment:testtubes,Bunsenburner,salt...Whenwedoanexperiment,weshouldfirstofallhaveanaim.Weshouldusepropermethods.Weshouldfindtheresultanddrawaconclusion.Haveyoueverdoneascientificexperiment?Whatisthecorrectorderofascientificexperiment?(Showthewordsonthescreen.)conclusionaimresultmethodT:Putthewordsintocorrectorder.aim→method→result→conclusionStep2MotivationT:Asweknowquitewell,metalsareveryuseful.Whatarethedifferentusesofmetals?Whatshouldweknowwhenusingmetals?Whichreactsmostwithwater,potassiumoriron?YouwillhaveabetterunderstandingofmetalsafterreadingPassageA.(Showthethreequestionsonthescreen.)(1)Whatarethedifferentusesofmetals?(2)Whatshouldweknowwhenweusemetals?(3)Whichreactsmostwithwater,potassiumoriron?Step3FastreadingTeacherallowstheSsafewminutestodofastreading.T:Whohasgottheanswers?S:Differentmetalshavedifferentuses,forexample,steelisusedincarsandironisusedinelectricalequipment.高考资源网（ks5u.com）您身边的高考专家版权所有@高考资源网-2-T:Whatshouldweknowwhenweusemetals?S:Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances.T:Sowemustbecarefulwhenweusemetals.Whoshouldbegoodatusingmetals?S:Scientists.S:Engineers.S:Mechanics.T:Verygood!Andwhichreactsmostwithwater,potassiumoriron?Ss:Potassium.T:Dowehavetokeepinmindhowmetalsreactwithdifferentsubstances?S:Yes.S:Notnecessarily.It’senoughtohavesomecommonsense.We’dbetterleavethemtotheexperts.S:Idon’tquiteagreewithyou.Betterleavethemtothepeoplewhoareinterestedinthisfieldofscience.T:Doyouagreewithhim/her?Ss:Yes./No.Step4DetailedreadingReadthepassageagain.AnswerthequestionsinPart3intheSB,P44.Thisisagoodtimetoenablethestudentstolearntoreadthetable.Answers:(1)Potassium,calciumandsodium.(2)Itburnstoformanoxide.(3)Magnesium,aluminiumandzinc.(4)Ithasaslowreaction.(5)No,itdoesn’t.Step5FurtherreadingT:NowreadPassageAcarefullytochoosethebesttitleforit.S:TheReactionofMetalsisthebesttitle.Step6Languagepoints1.Itishardtothinkofaworldwithoutmetals.it是形式主语,真正的主语为tothinkofaworldwithoutmetals,这是英语中一个很重要的句型。AsktheSstomakesomesentences,usingthepattern.Itishardtothinkofaworldwithoutfriendship.Itishardtothinkofaworldwithoutelectricity.Itisimportanttoreadthedirectionsbeforeyouusethemachine.Itispossibletobuildaradiowithoutusingmetals.T:PutthesentencesintoChineseonebyone.2.equipment不可数名词，“设备,装备”。(1)fire－fightingequipment消防设备thecostofequipment设备费用(2)常见的不可数名词有:news新闻,information信息,advice劝告,fun嬉戏,practice实践,furniture家具3.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances.使用金属时,要了解金属和不同的物质如何发生反应,这一点很重要。高考资源网（ks5u.com）您身边的高考专家版权所有@高考资源网-3-(1)reactwith...对……起(化学)反应Potassiumreactswithoxygeneasily.钾和氧容易起反应。reactto...对……产生反应,回应Theeyereactstothelight.眼睛对光会起反应。Hedidn’treacttotheirwords.他对于他们的话没作反应。(2)substance不可数名词，“物质”。achemicalsubstance一种化学物质Whatsubstancedoesitconsistof?它是由什么物质组成的?4.Thereactionofmetalswiththesesubstancescanbeputinorder.put...inorder把……按顺序排列以order为中心的短语有:keeporder维持秩序obeyorders服从命令saynumbersinorder照顺序数数ingoodorder井然有序outoforder顺序乱的;出故障的Step7PracticeLearntosaythenamesofthemetalsinthetable.Showtherealobjectorthepictureofeachmetal.Step8Assignment1.Learnthenewwordsbyheart.2.RecitePassageA.3.PreviewPassageB.Step9ThedesignofthewritingontheBlackboardModule5ALessoninaLabTheSecondPeriodreactwithreacttoachemicalsubstanceWhatsubstancedoesitconsistof?put...inorderkeeporderobeyorderssaynumbersinorderingoodorderoutoforderStep10ActivityandInquiryStepsStudents’ActingTeacher’sOrganizing1Readthroughtheexamplesandhavetheclassrepeatthemaftertheteacher.Getthestudentstorepeataftertheteacher.2Answerthequestionsindividually.Askthestudentstoanswerthequestionsindividually.3Putthestudentsinpairstocomparetheiranswers.Getthestudentstoworkinpairstocomparetheiranswers.4Callbacktheanswersfromtheclass.Collecttheanswersfromtheclass.高考资源网（ks5u.com）您身边的高考专家版权所有@高考资源网-4-高考资源网（ks5u.com）您身边的高考专家版权所有@高考资源网-5-w.w.w.k.s.5.u.c.o.m