学习实践人教版高二英语必修5全册教案Word格式文档下载.docx

1、3.Learningabilitygoals学能目标Learnhowtowriteapersuasivewritingandadescriptivewriting.Teachingimportantpoints教学重点Helpthestudentstolearntowriteapersuasivewritingandareport.Teachingdifficultpoints教学难点Howtowriteareportaboutascientistandhis/herjob.Teachingmethods教学方法Task-basedactivities.Teachingaids教具准备Acom

2、puterandaprojector.Teachingprocedures&ways教学过程与方式StepPresentationTask1:Summarizethewayofwritingareport.T:Nowclass,ifwewanttowriteareportaboutascientist,whatcontentsshouldweinclude?S1:Thelifeofthescientist,suchashisbirthanddeathdates,hisfamily,hiseducation,hispersonality,hisachievementsandcontrib

3、utions,hiskeyfactorstohissuccess.yes.youareright.Andhowdowemakeanoutlineaboutit?S2:weshouldputthecollectedinformationunderthreeheadlines:life,achievementsandkeytosuccess.Task2:Remindthestudentsofthewritingtechniquesandwritingfeaturesofareport.Showthefollowingtothestudents.ReportFormallanguagewithfew

4、adjectivesNospeechexceptquotationsNotemotionalonlyonemaincharacterFactualstructuredaccordingtoexperimentalmethodPasttenseandpassivevoiceTask3:Summarizethewayofpersuasivewriting.youknowifwewanttopersuadesb,wealwayswanttoreasonwithhimorher.wemustdevelopourownideasandprovidesomeevidencetosupportouridea

5、ssotherearealwaysthreestepstopersuadesomebodyelsetochangehisorherpointofview.canyoupointoutwhatthethreestepsare?Ithinkthefirstistogiveyouropinionandidea.Thesecondistogivethereasonsandevidencetosupportyouridea.S3:Thethirdistomakeaconclusion.ApersuasivewritingFormalorinformal,vividuseoflanguageSpeecht

6、oshowfeelings,reactions,etcEmotionalornotemotionaltodescribefeelingsandfactsonlytwomaincharactersFactualorimaginativebasedonfactReasonandpersuadestepbystepPresenttenseThenaskthestudentstowriteashortletterasrequiredinExercise3.Asampleversion:DearNicolauscopernicus,IamastudentstudyinghistoryandIwouldv

7、erymuchliketoreadyournewtheoryaboutthesolarsystem.Ihopeyouwillpublishitforseveralreasons.Iunderstandtheproblemswiththepresenttheory.Thewaytheplanetsmoveisnotwhatyouwouldexpectiftheearthwasthecentreoftheuniverse.Itisalsooddthatthebrightnessofsomestarsseemstochange.SoIagreewithyouthatweneednewtheory.I

8、knowyourobservationshavebeenverycarefullycarriedoutovermanyyears.Nowyoumusthavethecouragetopublishthem.Sciencecanneveradvanceunlesspeoplehavethecourageoftheirbeliefs.Iknowyouworryaboutwhatwillhappenifyoupublishyournewtheory.Nomatterhowpeopleopposeit,timewillshowifyourideasarerightorwrong.SoIhopeyouc

9、anpublishyournewtheory.StepwritingAskthestudentstowriteareportaboutascientist.SampleversionsStepHomeworkAskthestudentstodotheProjectonpage47.附件.HowtodoascienceresearchAscienceprojectisaninvestigationusingthescientificmethodtodiscovertheanswertoascientificproblem.Beforestartingyourproject,youneedtoun

10、derstandthescientificmethod.Thissectionusesexamplestoillustrateandexplainthebasicstepsofthescientificmethod.Thescientificmethodisthe“tool”thatscientistsusetofindtheanswerstoquestions.Itistheprocessofthinkingthroughthepossiblesolutionstoaproblemandtestingeachpossibilitytofindthebestsolution.Thescient

11、ificmethodinvolvesthefollowingsteps:doingresearch,identifyingtheproblem,statingahypothesis,con-ductingprojectexperimentation,andreachingaconclusion.ResearchResearchistheprocessofcollectinginformationfromyourownexperiences,knowledgeablesources,anddatafromexploratoryexperiments.yourfirstresearchisused

12、toselectaprojecttopic.Thisiscalledtopicresearch.Forexample,youobserveablackgrowthonbreadslicesandwonderhowitgotthere.Becauseofthisexperience,youdecidetolearnmoreaboutmoldgrowth.yourtopicwillbeaboutfungalreproduction.cAUTIoN:Ifyouareallergictomold,thisisnotatopicyouwouldinvestigate.chooseatopicthatis

13、safeforyoutodo.Afteryouhaveselectedatopic,youbeginwhatiscalledprojectresearch.Thisresearchistohelpyouunderstandthetopic,expressaproblem,proposeahypothesis,anddesignoneormoreprojectexperimentsexperimentsdesignedtotestthehypothesis.Anexampleofprojectresearchwouldbetoplaceafreshloafofwhitebreadinabread

14、boxandobservethebreadoveraperiodoftimeasanexploratoryexperiment.Theresultofthisexperimentandotherresearchgiveyoutheneededinformationforthenextstepidentifyingtheproblem.ProblemTheproblemisthescientificquestiontobesolved.Itisbestexpressedasan“open-ended”question,whichisaquestionthatisansweredwithastat

15、ement,notjustayesorano.HypothesisAhypothesisisanideaaboutthesolutiontoaproblem,basedonknowledgeandresearch.whilethehypothesisisasinglestatement,itisthekeytoasuccessfulproject.Allofyourprojectresearchisdonewiththegoalofexpressingaproblem,proposingananswertoit,anddesigningprojectexperimentation.Thenal

16、lofyourprojectexperimentingwillbeperformedtotestthehypothesis.Dostatefactsfrompastexperiencesorobservationsonwhichyoubaseyourhypothesis.Dowritedownyourhypothesisbeforebeginningtheprojectexperimentation.Dontchangeyourhypothesisevenifexperimentationdoesnotsupportit.Iftimepermits,repeatorredesigntheexp

17、erimenttoconfirmyourresults.ProjectExperimentationProjectexperimentationistheprocessoftestingahypothesis.Thethingsthathaveaneffectontheexperimentarecalledvariables.Therearethreekindsofvariablesthatyouneedtoidentifyinyourexperiments:independent,dependent,andcontrolledvariables.Theindependentvariablei

18、sthevariableyoupurposelymanipulate.Thedependentvariableisthevariablethatisbeingobserved,whichchangesinresponsetotheindependentvariable.Thevariablesthatarenotchangedarecalledcontrolledvariables.Dohaveonlyoneindependentvariableduringanexperiment.Dorepeattheexperimentmorethanoncetoverifyyourresults.Doh

19、aveacontrol.Dohavemorethanonecontrol,witheachbeingidentical.Doorganizedata.ProjectconclusionTheprojectconclusionisasummaryoftheresultsoftheprojectexperimentationandastatementofhowtheresultsrelatetothehypothesis.Ifyourresultsdonotsupportyourhypothesis:DoNTchangeyourhypothesis.DoNTleaveoutexperimental

20、resultsthatdonotsupportyourhypothesis.Dogivepossiblereasonsforthedifferencebetweenyourhypothesisandtheexperimentalresults.Dogivewaysthatyoucanexperimentfurthertofindasolution.Ifyourresultssupportyourhypothesis:youmightsay,forexample,“Asstatedinmyhypothesis,Ibelievethatlightisnotnecessaryduringtheger

21、minationofbeanseeds.myexperimentationsupportstheideathatbeanseedswillgerminatewithoutlight.Aftersevendays,theseedstestedwereseengrowinginfulllightandinnolight.Itispossiblethatsomelightreachedthenolightcontainersthatwereplacedinadarkcloset.IfIweretoimproveonthisexperiment,Iwouldplacethenolightcontain

22、ersinalight-proofboxand/orwraptheminlight-proofmaterial,suchasaluminumfoil.”2.onwomenscientists:AspeechintheInternationalwomensDaywomenthouhastencircledtheworldsheartwiththedepthofthytearsastheseahastheearth.womeninyourlaughteryouhavethemusicofthefountainoflife.Themessageisclear;itisinspiringandpres

23、entsadeepphilosophy.womenwouldbethechangeagentinthisfastmovingworldssocio-economicscenario.wehaveassembledheretodaytocelebratetheInternationalwomensDayandalsotheyearofEmpowermentofwomen.madamcuriewhogottheNobelPrizejustaftertwoyearsofestablishmentoftheNobelFoundationfirstin1903inPhysicswhensheshared

24、itandthenthesecondonein1911inchemistry,createdahistorybywinningtwoNobelPrizesinaspanof8years.Iamsure,thegrouphereisawareofthedifficultconditionsandlaboratoryarrangementsunderwhichsheworkedandyet,sheexcelled.BiotechnologistscanneverforgettheworkofDorothycrowfootHodgkinoncrystallographyleadingtothestr

25、uctureoftheimportantbiologicalcrystals.ShewontheNobelPrizeinchemistryin1964.TheworkofBarbaramcclintock,ageneticistwonhertheNobelPrizein1983.justassomeonesaid:“Developingcountriesthathavemaderemarkablesocialprogress,havedonesoprimarilythroughtheempowermentofwomen,whichhashadenormousimpactintermsoflit

26、eracy,healthandeconomicwellbeingoffamilies.”whatweneedtodoistoensurethevaluablecontributionfrom50%ofourhumanresource.Itisamatterofgreatpleasureforallofustoseethatthewomenarenotonlyconfinedtobiology,asubjectinwhichtheyhavebeencontributingsignificantly,theyarealsojoiningtheareasofphysicalsciencesanden

27、gineeringandperformingequallywell.Somehow,inmanypartsoftheworldtoday,scienceandtechnologyinterventionshavetreatedwomenprimarilyasrecipientofknowledgeandhaveunderestimatedtheirimportanceasgeneratorsofinnovationsandasadynamicagentofeconomicandsocialchange.Inempoweringthewomenwithscientificandtechnolog

28、icalskills,womenscientistsandtechnologistshaveamajorrole.Biotechnologyandbiosciencesincludingmedical,agricultureandbasicresearchhaveopenedupnewopportunities.Theinvolvementofwomenscientistsandtechnologistsinphysicalsciences,especiallyintheNationalAeronauticsandSpaceAdministrationdatesbackto1903,theyw

29、orkedasexplorers,pioneersandinnovators.Bytheendofthe20thcentury,atleast25%oftheastronautsatNASAwerewomen,16%scientistsandengineers.ofcourse,itisextremelyimportantthatwomenscientistsandtechnologistsareappreciatedfortheirdualroleinthesocietywhilepursuingscientificresearchasacareer.Theyshouldalsonurtur

30、eandcherishtheirqualitiesofculture,compassion,courageandcreativity.Andaboveall,thecooperativespirit.Thefivecsarepersonifiedinwomenspersonality.3.charlesDrawinoriginofSpeciesTheEnglishscientist,charlesDarwinwasbornonFebruary12,1809,thesamedaythatAbrahamLincolnwasborn.Darwincausedachangeinthinkingaboutevolution,whereasLincolncausedachangeintheroleoftheblackslave,allowingtheblackmantobeafreemaninAmericansociety.Darwinsfathertriedtoinfluencehissontobecomeaworthystudentinschool.However,charlesdidno