中国学习者英语口语词汇特点

大学英语专业四级口语考试和大学非英语专业四、六级口语考试实施以来,英语口语词汇在英语教学领域逐渐引起了广泛的重视。本文以库容为100万次词的SECCL、WECCL、BNCS和BNCW为语料,通过中国学习者和英语本族语者口语和书面语的对比,对中国学习者英语口语词汇特点进行了定性定量的分析。借助计算机辅助手段,特别是MicrosoftVisualFoxPro程序和SPSS统计软件,作者对中国学习者英语口语词汇在词汇量、词汇覆盖率、词汇密度、词汇增长率、词长、高频词、低频词等方面进行了研究。在词汇量方面,BNCS为10,783,BNCW为41,426,SECCL为5,497,WECCL为8,605;在词汇密度方面,BNCS为0.0105,BNCW为0.0414,SECCL为0.0038,WECCL为0.0085;在均匀词长方面,BNCS为6.48,BNCW为7.41,SECCL为6.36,WECCL为7.37;在词汇增长率方面,BNC口笔语的增长曲线差距很大而SWECCL口笔语的增长曲线差距较小;在高频词方面,BNC口笔语中排在第一位的单词分别为be和the而SWECCL口笔语中排在第一位的单词同为the。以上各个方面表明,不同于英语本族语者口语和书面语的较大差距,中国学习者英语口语和书面语的差距非常小。中国学习者英语口语单词量在800词左右,达到95的覆盖率而英语本族语者口语单词量在3000词左右达到95的覆盖率;在插入语、缩略语以及非正式语等方面,中国学习者英语口语与本族语英语口语都存在着较大差距。同时,在中国学习者英语口语中存在着大量的类推过度现象。【关键词】：口语词汇覆盖率词汇密度词汇增长率高频词
【论文提纲】：Abstract5-6摘要6-11Chapter1Introduction11-151.1ResearchBackground11-131.1.1PresentState11-121.1.2TheCollegeEnglishSyllabuorEnglishMajors121.1.3TheImportanceofEnglishSpokenVocabulary12-131.2TheSignificanceoftheStudy131.3TheAimsoftheStudy13-141.4ResearchQuestions141.5OrganizationoftheThesis14-15Chapter2LiteratureReview15-332.1SpokenLanguageandWrittenLanguage15-162.2StylisticandSyntacticFeaturesofSpokenLanguage16-202.2.1StylisticFeaturesofSpokenEnglish16-172.2.1.1RepetitivenessinStyle162.2.1.2InexplicitnessinStyle16-172.2.1.ersonalizationinStyle172.2.2SyntacticFeaturesofSpokenEnglish17-202.2.2.1Voice17-182.2.2.2SentenceStructure18-192.2.2.3FiniteComplementClause192.2.2.4Ellipsis19-202.3LexicalCharacteristicsofSpokenEnglish20-292.3.1InformalWords20-212.3.2ContractionsandAbbreviations212.3.3Fillers21-222.3.4Slang22-232.3.5Hedges23-242.3.6Inserts24-272.3.7Syllable27-282.3.8GeneralizedVocabulary28-292.4LexicalCharacteristicsofNon-nativeSpokenEnglish29-332.4.1LowLexicalDensity292.4.295LexicalCoverageRate29-312.4.3Hapaxlegomena31-322.4.4MotherTongueInterference32-33Chapter3ResearchMethodology33-403.1Corpus-basedApproach333.2CorporaUsedinThisStudy33-363.2.1BNC34-353.2.1.1WrittenComponentofBNCCorpus34-353.2.1.2SpokenComponentofBNCCorpus353.2.2SWECCL35-363.3ToolsandProcedureorDataProcessing36-403.3.1DataSampling363.3.2DataProcessing36-403.3.2.1Decoding37-383.3.2.2Tokenization383.3.2.3Lemmatization38-40Chapter4ResultsandDiscussion40-614.1VocabularySize40-414.2LexicalDensityandIncreaseRate41-464.2.1LexicalDensity41-424.2.2VocabularyIncreaseRate42-444.2.3CauseorLowLexicalDensityandSlowVocabularyIncreaseRateofSpokenEnglish444.2.4CauseorSlightDifferencesbetweenChineseEFLLearners'SpokenandWrittenEnglish44-464.3LemmaCoverageinBNCSandSECCL46-474.4WordLength47-484.5HighFrequencyWordsandHapaxLegomena48-534.5.1HighFrequencyWords48-524.5.2HapaxlegomenainBNCSandSECCL52-534.6TheCompositionoftheSpoken-onlyWords53-614.6.1InsertsinSpoken-onlyWords55-584.6.2InformalWordsinSpoken-onlyWords584.6.3ContractionsandAbbreviationsinSpoken-onlyWords58-594.6.4TheOver-useinSECCL-onlyWords59-61Chapter5Conclusion61-645.1MajorFindingsoftheStudy61-625.2SomePedagogicalImplications62-635.3SuggestionorFurtherResearch63-64References64-69AppendixI69-74AppendixII74-84Publication84-85Acknowledgements85-86Resume86