范文The Properties of Water教案.docx

1、范文The Properties of Water教案The Properties of Water教案Unit13ThePropertiesofwaterTeachingGoals.Talkaboutwaterandtheocean.2.Practicecommunicativeskills.3.ReviewmodalVerbs.4.writeanexplanationparagraph.TheFirstPeriodTeachingAims:.Learnandmasterthenewwordsandtheusefulexpressionsofthispart.2.Learnsomething

2、aboutwaterbydoingexperiment.3Dosomelistening.4.Improvethestudentsspeakingabilitybytalking.TeachingImportantPoints:.makethestudentsbefreetotalkaboutwater.2.Improvethestudentslisteningabilitybylistening.TeachingDifficultPoints:.Howtofinishthetaskofspeaking.2.Howtoimprovethestudentslisteningability.Tea

3、chingmethods:.Listening-and-answeringactivitytohelpthestudentsgothroughwiththelisteningmaterial.2.Individual,pairorgroupworktomakeeverystudentworkinclass.TeachingAids:.themultimedia2.theblackboard3.anemptyglass,abottleofwaterandabottleofvegetableoilTeachingProcedures:Step1GreetingsandLead-inReadasho

4、rtpoemandguessitsname:Aletterfrom_.DearUser,Shametoyouall,theIgnorant,IamyourlifeButyouseemnottovaluemeGivemealltherespectForinmeiseternallifeIfyoucontinueabusingmeSurely,allformsoflifewillwitherawayHaveyoueverimagined,Lifewithoutme?Itellyou,itwillbeunbearableThinktwiceForeverydropcounts.Qs:1)whatdo

5、es“Dearuser”herereferto?2)whatdoesittalktoitsusers?3)onwhichplanetdoesitexist?ontheearth,whichisalsocalledthewaterplanet.4)Doyouknowwhyitiscalled“Thewaterplanet”?Becauseaboutthreequartersoftheearthiscoveredbywater.Step2:Pairwork:collectasmanywordsaspossiblerelatedtowater.Qs:Howmuchdoyouknowaboutwate

6、r?Isallwaterfreshorsalty?Step3:Talkaboutthepropertiesofwater.PairworkT:waterisaroundusandinsideus.wecantgowithoutwater.Qs:whyiswatersoimportanttolivingthings?canyoupointoutsomeofitspropertiesorcharacteristics?Suggestedvocabulary:Itscolorless,tasteless,odorlessanduniversaldissolvent.Itfeelswet;Itexis

7、tsinthreeforms:liquid,solid,gas,andiscycledthroughthewatercycle;Itcanabsorbalargeamountofheat;Itstickstogetherintobeadsordrops;Itspartofeverylivingorganismontheplanet;etc.2.GroupworkLearnmoreaboutwaterspropertiesbydoingsomesimpleexperimentsandlearntodescribeanexperiment.whatpropertyofwaterdoeseachof

8、thefourexperimentsillustrate?whatcausesthisphenomenon?whatsthisphenomenonrelatedto?Experiment1showshowairpressurecausesapieceofthickpapertoclingtoanupturnedglassofwater.Experiment2illustrateshowsubstanceswithdifferentdensitybehavewhenplacedinthesamecontainer.Experiment3isanexampleofhowwaterdissolves

9、substancesandobjects.Experiment4illustratessomeofthedifferencesbetweensaltwaterandfreshwater.3.T:whatotherpropertiesofwaterdoyouknowabout?whatcausesthefollowingphenomena?canyouexplain?wecangetalotofnutrientsbydrinkingwaterandhavingsoup.woodfloatsonwaterwhileironsinks.Thecoastalareasareoftenneitherto

10、ohotnortoocold.whycansomelivingthingsliveatthebottomoftheoceanwherethereisnosunshine?Tryaskingquestionsaboutthepropertiesofwaterandthengiveanswerstothem.Step5:HomeworkReadthetextcarefullyandfindoutthedetailedinformationaboutwaterproperties.2Thinkasmanyexamplesaspossibletoillustratewaterproperties.Th

11、eSecondPeriodTeachingAims:.Learnandmasterthesomenewwordsandphrases.2.Improvethestudentsreadingability.3.Enablethestudentstorealizethatitisimportanttoprotectthewateronourplanet.TeachingImportantPoints:.Improvethestudentsreadingability.2.masterthefollowingphrases:alltheway,thatis,mixwith,takeadvantage

12、of,managetodoTeachingDifficultPoint:Howdowemakethestudentsunderstandthereadingpassagebetter.Teachingmethods:.Discussionbeforereadingtomakethestudentsinterestedinwhattheywilllearn.2.Fastreadingtogetageneralideaofthetext.3.Discussionafterreadingtomakestudentsunderstandwhattheyvelearnedbetter.4.careful

13、readingtogetthedetailedinformationinthetext.TeachingAids:.themultimedia2.theblackboardTeachingProcedures:Step1GreetingsStep2RevisionandLead-inAsksomeonetoillustratewaterproperties.Step3:Pre-readingLookatthetitlesinthetextbelow.Donotreadthewholetext.Pickoutthesubjectofeachparagraph.Usethestructuresbe

14、lowtomakesixquestionsrelatedtothesubjects.whatis/are_?whatdoes_looklike?whataredifferentpartsof_?whatcan_becomparedto?Howdoes_work?whataresomeexamplesof_?Skimtofindthewordsandphraseswhichdescribethepropertiesofwaterinthereadingtext.ScantoFindoutsomebasicfactsaboutlifeintheoceans.Lifeonearthbeganintheoceansaboutthreebillionyearsago;99%ofthelivingspaceonearthisintheoceans;Thereareaboutfivemillionspeciesintheoceans;Lifeintheoceansrangesfromtinyplanktontogiantwhales.T:yesterday