second language acquisition and the critical period hypothesis

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1、--------------------------------------------精品文档Word可编辑值得收藏------------------------------------------------SecondLanguageAcquisitionandtheCriticalPeriodHypothesisSecondLanguageAcquisitionandtheCriticalPeriodHypothesisBirdsong,David(Ed.)(1999)Mahwah,NJ:LawrenceE

2、rlbaumAssociatesIsthereasinglekeyissueinthefieldofsecondlanguageacquisition/learning,anasyetunresolvedmatteronwhichallelsedepends?Agoodcasecouldbemadeforthequestionofwhetherornotthereisacriticalperiodforsecondlanguagelearningbeingjustsuchakeyissue.Inotherwords,

3、doesthenatureofsecondlanguageacquisitionchangeifthefirstexposuretothenewlanguagecomesafteracertainage?Thisquestioniscloselylinkedtothequestionofwhetherfirstlanguage(L1)acquisitionandsecondlanguage(L2)acquisitionareessentiallythesame11---------------------------

4、-------------------------精品文档值得收藏-------------------------------------------------------------------------------------------------------精品文档Word可编辑值得收藏------------------------------------------------process,orverysimilarprocesses,andifsowhetherthisisthecasefors

5、omelearners,orforall.Inpracticalterms,itcouldbecentralnotonlytosuchissuesastheoptimalageatwhichchildrenshouldstartlearningforeignlanguages,butalsotothebestteaching/learningapproachforadults.Krashen’sInputHypothesis(Krashen,1985)istotallyunderminedifacriticalper

6、ioddoesindeedexist,sincethehypothesisassumesnotonlythatL2acquisitionissimilarinnaturetoL1acquisition,butalsothatthisisthecaseforlearnersofanyage.AlhoughmanywouldclaimthatKrashen’stheoriesareseriouslyflawedinanycase,theirinfluenceinthefieldofsecondlanguageteachi

7、ngcanhardlybedenied.Issuessuchastherelativeimportanceoflexisandsyntaxinteachingmaterialsmustultimatelylinkbacktothewayinwhichsecondlanguageknowledgeisorganisedinthebrain.IfthatorganisationisdifferentinlearnerswhohavefirstbeenexposedtoL2afteracertainage,thenthis

8、hasabearingonchoiceofteachingapproach.Yes,IbelievethereisastrongprimafaciecaseforregardingthedebateovertheCriticalPeriodHypothesis(CPH)asacentralissue.Theconceptofacriticalp