英語(yǔ)專業(yè)學(xué)生說明文中語(yǔ)言復(fù)雜度的發(fā)展研究.pdf

1、分類號(hào)：H31密級(jí)：無(wú)學(xué)校代碼：10414學(xué)號(hào)：2014010454碩士研究生學(xué)位論文碩士研究生學(xué)位論文AStudyonLanguageComplexityDevelopmentinExposityWritingbyEnglishMajs英語(yǔ)專業(yè)學(xué)生說明文中語(yǔ)言復(fù)雜度的發(fā)英語(yǔ)專業(yè)學(xué)生說明文中語(yǔ)言復(fù)雜度的發(fā)展研究展研究凌建利院所：外國(guó)語(yǔ)學(xué)院導(dǎo)師姓名：劉春燕學(xué)位類別：學(xué)術(shù)型專業(yè)領(lǐng)域：二語(yǔ)習(xí)得二○一七年六月IAbstractWritingis

2、asignificantindicattoevaluatelearners’languagecompetencegaugedbylanguageaccuracyfluencycomplexity.Thepresentstudyfocusesonlanguagecomplexityofwritingwhichiscommonlyinvestigatedfromtwoaspects:syntacticcomplexitylexicalcom

3、plexity.Inrecentyearstheresearchconcerninglanguagecomplexityhasincreasedsomeofwhichlongitudinallyprobeintothewritingfeaturesoflanguagelearnersatdifferentdevelopmentstageslevels.Somearecrosssectionalstudiesinspectinglangu

4、agefeaturesofthesameperiodstage.ThisstudyexamsthedevelopmentofsyntacticlexicalcomplexityofEnglishmajs’expositywriting.BasedontheDynamicSystemTheythepresentstudytakingexpositionasitsgenreresearchedbothsyntacticlexicalcomp

5、lexityinwritingofEnglishmajsacrossthreegrades.Itaimedataddressingthefollowingquestions:(1)WhatarethefeaturesofsyntacticcomplexitydemonstratedinexpositywritingofEnglishmajsofdifferentgrades(2)Whatarethefeaturesoflexicalco

6、mplexitydemonstratedinexpositywritingofEnglishmajsofdifferentgrades(3)WhatistherelationshipbetweenlinguisticcomplexityEnglishlearners’expositywritingperfmanceThestudycollectedonetopiccompositionswrittenbyEnglishmajsfromt

7、hreegradesinauniversityinJiangxiProvence.Theparticipantswere121Englishmajswhowereaskedtowriteanexposition.Then90writingswereromlyed30fromeachgrade.Weexaminedsyntacticcomplexitybyfourindexes:clausallength(WC)complexnomina

8、ls(CNC)Tunitcomplexityratio(CT)dependentclauseratio(DCC).lexicalcomplexitywasexaminedfromlexicalvariation(wdtypespersquarerootof2timestotalwds)Lexicalfrequencyprofile(LFP).Resultsofthepresentstudyareasfollows:(1)allthein

9、dexesfsyntacticcomplexityWCCNCCTDCCprogressedacrossthethreegradesbutthereexistsaslowgrowthfromGrade1toGrade2intermsofCTDCC(2)GenerallylexicalcomplexitymakesslowprogressespeciallyLexicalFrequencyProfile(LFP)indicatingstud