句子层面的输出对二语词汇词形习得影响的实证研究

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1、重庆大学硕七学位论文ChapterOne：Introduction1．2CurrentStudiesonSecondLanguageVocabularyAcquisitionForvocabularyacquisition,differentteachershavedifferentwaystopresentnewwords．Someteacherspresentexamplestoshowmeaningofthewords，theythinktheexamplesaregoodiftheyarecreatedbytheteachersthemselvesratherthanfro

2、mdictionaryortextbook．Teachersmayelicitmeaningforstudentsbeforetheyofferthemeaning．Whiletherearestillotherwaystopresentnewwords，suchasdrawingpictures，diagramsandmaps，toshowmeaningorconnectionofmeaningstogetherwiththewords’form；usingrealobieetstoshowmeanings，mimeOracttoshowmeaning．Thewordwithpi

3、ctureispopularatsecondlanguagelearningclassroom，especiallyintheinitialstageoflanguagelearning．Thesetwomethodsareoftenusedbytheteachers．Also，studentsareencouragedtomakesentencewithtargetwordstoenhancetheirunderstandingofthetargetwords．Sentencegeneratedbythelearnersisonekindofmethodtofacilitatev

4、ocabularylearning．Yetinrealsecondlanguageacquisitionactivities，learnersmaybereluctanttomakesentenceswiththewordsgiven,jnstlikethatintheirfirstlanguageacquisition．Nowadays，Krashen’sInputTheoriesareprevailingamongthesecondhngueacquisitionareas．Theimpactofthistheoryon1-2acquisitionisgreat．Krashen

5、(1985)arguesthatthe“comprehensibleinput”issufficienttothelanguageacquisition．Withoutinput,therewouldbenoacquisition．Here，Krashenclassifiedthistermwiththeadditionoftheword“comprehensible”．Krashen’Stheoryledtotheincidentalvocabularyacquisitiontheory,whichcompoundstherelationbetweencomprehensible

6、inputandvocabularyacquisition．Someresearcherschallengedthistheory,suchasSwain(1985)，proposingtheOutputHypothesisTheory．Duringherinvestigation,Swainfoundthatinthesecondlanguageacquisition，theinputisimportant,butitisnotenoughifthereisonlycomprehensibleinput．Meanwhile，theoutputisalsoimportant．Out

7、putcanenhanceL2acquisition．Buttherearefewresearchestoinvestigatewhethertheoutputcanenhancevocabularyacquisition．BothKrashenandSwaininvestigatedroleofinputandoutputfromacontextualapproachinsecondlanguageacquisition．Recently,moreresearche