The Construction Of TCFL Writing Topic Bank And Topic Word List

From the perspective of a national language system,“vocabulary” is the basic carrier of the national language information,and the most active part of the language system.Vocabulary can always reflect the change of social life distinctly.Therefore,among the three elements of language,pronunciation,vocabulary and grammar,vocabulary has the largest variation range and change fastest.For the TCFL,“vocabulary” has always been the focus and the difficult point.The importance of“vocabulary” to language demonstrates the importance of “vocabulary” for the language learning.Therefore,“Teach what” requires researchers’ qualitative and quantitative analysis.Thus,the learners can make what they learn into application.This article starts from topics,which are the center of conversation in daily life,and focus on the “writing teaching”,bases on the textbooks,which play as the bridge between teachers and students.Through the qualitative analysis of the basic principles of “corpus construction,corpus annotation” and the quantitative statistics of “corpus size,vocabulary scale,vocabulary selection”,the topic-centered “word list” is constructed.The process of this paper is to establish a corpus of Chinese writing materials for foreigners and construct a writing topic bank,and then mark the corpus based on topic bank and analyze the topic statistical data,and then extract the topic vocabulary based on the topics and corpus and do the semantic analysis of the extracted topic vocabulary,finally,develop a searchable program based on all studies.The specific research content of this paper includes the following seven parts:The first chapter introduces the origin of this paper,and discusses the application value of the topic bank and topic vocabulary,the theoretical basis of the research,relevant research status and research methods of this paper.The main purpose of the second chapter is to establish a corpus of writing textbooks of TCFL.Firstly,this chapter investigates the status quo of TCFL corpus and the preparation of Chinese-writing textbooks of TCFL since the founding of China.According to the different purposes,the writing textbooks are divided into 10 categories.Based on the research purpose of this paper and the principle of corpus construction,three kinds of writing textbooks are selected.Finally,according to the size and standardization of the actual corpus texts,3,392 texts from the 78 textbooks are selected to establish a corpus of TCFL writing textbooks.Finally,the authors,sources and titles of the 3392 texts are counted.The main goal of the third chapter is to establish a bank of TCFL writing topics.First of all,the syllabus of TCFL is divided into six categories according to the content and purpose.Finally,the “Topic syllabus” in the International Chinese General Curriculum syllabus(2014)and HSK Examination syllabus(Level 1-6)(2015)is selected as the basic topic sources of the topic bank.By amending,merging and deleting the existing syllabic topics,and supplementing according to the particularity of the Chinese writing,the basic topics are selected.According to the different range,the topics are distinguished into “first-level topics,second-level topics,and final-level topics”.In accordance with the classification and sorting principle “from material to spiritual,from individual to society”,a bank of Chinese-writing topics with 12 types of first-level topics,43 types of second-level topics and many last-level topics is established.This topic bank is the basis for topic annotation and topic vocabulary extraction.The fourth chapter is mainly about corpus annotation and analysis based on Chapter 2 and Chapter 3.Firstly,the 3,392 texts are manually labeled with the first-level topics,the second-level topics and the last-level topics.Then,according to the order "from big to small,from macro to micro",the topic of the corpus is examined from many angles.Firstly,this section analyzes the number of “first-level topics” and “second-level topics” in the entire corpus,and then summarizes the topic trends of the primary,middle and advanced textbooks.The "series textbooks","single textbooks","primary textbooks","intermediate textbooks",and "advanced textbooks" are investigated and compared in terms of the number of topics and topic layout methods,and then the text content of specific topics is examined in detail.Finally,it puts forward different-level suggestion tables of TCFL writing topics,and clarifies the significance of topic bank construction for textbook topic selection and syllabus writing.The main purpose of Chapter five is to establish a topic word list.Firstly,this chapter defines the concept of “word list” and “word” and introduces the technical methods such as word segmentation,word frequency calculation and stop-words list application.Then,according to the Chen Keli(2003)word extraction algorithm,the top 200 feature words of 43 types of second-level topics are selected,and the proper nouns are discussed separately.Then,based on the intersection of the 43 types of second-level topic words,the “secondary topic-general word list”,“secondary topic-specific word list” and “first-level topic word list” are established through intersection,union and subtracting.With the same methods,“first-level topic-general word list” and “first-level topic-specific word list” are established.Finally,the significance of the topic vocabulary to TCFL writing teaching is discussed.The sixth chapter is to refine and reanalyze the topic vocabulary.Considering the practicality and operability in the practical TCFL,the Modern Chinese Classification Dictionary(2013)is the main reference,and each topic group is analyzed.After that,combined with the specific situation of the TCFL topic vocabulary,eight types of semantic fields are drawn up.Then,combined with the topic teaching method,induction method,association method and semantic analysis method,the teaching scheme design based on lexical meaning system,semantic field theory and teaching methods is proposed.Firstly,the seventh chapter compares the 3688 topic words obtained in this paper with the 5000 words in the HSK Examination Outline(2015)from the coincidence rate,word meaning,syllables,arrangement and processing of special words.It finds that the two vocabulary tables need to be improved and perfected.Based on the research in this paper,a topical categorization analysis program for searching is developed.The conclusion part summarizes the main research results of this paper first,and then discusses the shortcomings found in the process of completing the set goals and the work to be done in the future.