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1、Threequestionsaboutsequences1.Whatistheactualsequence?2.IsitlikeLIsequence?3.Whydoes让occur?TheGrammaticalMorphemeStudiesCommonL2orderofdifficultyforgrammaticalmorphemes(DulayandBurt)1plural“・s”“Books”2progressive"Johngoing"3copula"be""Johnishere"4auxiliary"be""Johnisgoing"5articles"the/a"“The
2、books"6irregularpasttense"Johnwent97thirdperson"・s”"Johnlikesbooks"8possessive"'s”"John'sbook"KeyresearchsummaryDulay,H.C.,&Burt,M.K.(1973),"Shouldweteachchildrensyntax?：LanguageLearning,23/2,245-258Datatype:sentenceselicitedviatheBSM(BilingualSyntaxMeasure)-cartoondescriptionL2learners:151Sp
3、anish-speakingchildrenaged6・8learningEnglishintheUSAMethodofanalysis:i)establishingpercentagesuppliedinobligatorycontextsfor8grammaticalmorphemesii)orderingthesefrommosttoleastResults:12345678pl.“・s”cop.“be"aux“be”“the/a"irreg.past3p.“・s”poss.“・s"Claims:"theredoesseemtobeacommonorderofacquis让
4、ionforcertainstructuresinL2acquisition1(DulayandBurt,1973,p.256)・1234567L2:Dulay&Burt1974athe/a-ingplural-sreg・pastirreg.pastposs.，s3rdp.'sLI:Brown1973-ingplural'sirreg.pastthe/aposs.'sreg・past3rdp.'sComparisonofLIandL2sequencesfor7grammaticalmorphemesOtherreferencesDulay,H.C.,Burt,M.&Krashen
5、,S.(1982),LanguageTwo,NewburyHouse,Rowley,Mass.Lightbown,P.M.(1987)，"Classroomlanguageasacquisitiontosecondlanguageacquisition1,inC.W.Pfaff(ed)FirstandSecondLanguageAcquisitionProcesses,NewburyHouseLee,D.J.(1981),"InterpretationofmorphemerankorderinginL2research',inP.Dale&D.Ingram(edsjPerkins
6、,K.;&Larson・Freeman,D.(1975)，"Theeffectofformallanguageinstructionontheorderofmorphemeacquisition",厶anguage厶earning,25Porter,J.H.(1977),"Across-sectionalstudyofmorphemeacquisitioninfirstlanguageacquisition1,LanguageLearning.27,1,47-61TheProcessabilityModelMovementPeterishappyIsPeterhappyPeter
7、willlikewho?PeterbrokethewindowWhowillPeterlike?ThewindowwasbrokenbyPeterTacts1aboutGerman1)DeclarativemainclauseorderSubjectVerbObject(SVO)/fIchliebedichn(Iloveyou).2)Non-inflectedverbformssuchasparticiplesmustoccurattheendofmainclausesasin"
