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《大学英语》(航海类)与航海专业英文版教材的词汇对比研究

摘要第5-6页
ABSTRACT第6页
List of Abbreviations第7-11页
Chapter 1 Introduction第11-16页
    1.1 Background of the Study第11-13页
    1.2 Purpose and Significance of the Study第13-14页
    1.3 Research Questions第14页
    1.4 Layout of the Thesis第14-16页
Chapter 2 Literature Review第16-33页
    2.1 Nautical English as ESP第16-20页
        2.1.1 Background Information of Nautical English第16-17页
        2.1.2 Current Situation of NE Education第17-19页
        2.1.3 Previous Studies on Nautical English第19-20页
    2.2 Introduction to Lexical Study第20-23页
        2.2.1 The Importance of Vocabulary to Reading Comprehension第20-22页
        2.2.2 Previous Lexical Studies on Textbooks第22-23页
    2.3 Introduction to Corpus-based Approach to Lexical Study第23-33页
        2.3.1 Lexical Density第24-26页
        2.3.2 Lexical Coverage and Lexical Threshold Theory第26-28页
        2.3.3 Word Length第28-29页
        2.3.4 Word Frequency第29-33页
Chapter 3 Research Methodology第33-40页
    3.1 Research Design第33-34页
    3.2 Corpus and CERW Wordlist Used in the Study第34-35页
    3.3 Data Processing第35-39页
        3.3.1 Software and Tools for Data Processing第35-36页
        3.3.2 Data Processing Procedures第36-39页
    3.4 Data Analysis Approaches第39-40页
Chapter 4 Results and Discussion第40-63页
    4.1 Lexical Density of NE Corpus and MCE Corpus第40-43页
    4.2 Lexical Difficulty of NE Corpus and MCE Corpus第43-46页
    4.3 The Lexical Coverage of MCE Wordlist over NE Corpus第46-52页
        4.3.1 Shared words of MCE Wordlist and NE Corpus第47-48页
        4.3.2 Lexical Coverage Rate of the MCE Wordlist over NE Corpus第48-50页
        4.3.3 Top 50 Unique Lemmas in NE Corpus第50-52页
    4.4 Word Length of MCE Corpus and NE Corpus第52-54页
        4.4.1 Mean Word Length第52-53页
        4.4.2 Comparison of Frequency Distribution Between MCE and NE第53-54页
    4.5 High Frequency Words第54-59页
        4.5.1 High Frequency Words of MCE Corpus and NE Corpus第54-56页
        4.5.2 Comparison of Top50 High Frequency Words第56-59页
    4.6 Hapax Legomena in MCE Corpus and NE Corpus第59-63页
        4.6.1 Word Formation of Hapaxes in NE Corpus第60-63页
Chapter 5 Conclusion第63-67页
    5.1 Major Findings of the Study第63-65页
    5.2 Implication第65页
    5.3 Limitations and Suggestions for Further Study第65-67页
References第67-72页
Appendix Ⅰ Perl Program for Lemmatizer第72-73页
Appendix Ⅱ Perl Program for Selecting Shared Terms第73-74页
Appendix Ⅲ Supplemental Wordlist for MCE Corpus第74-76页
Acknowledgements第76-77页
Resume第77页

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