中国学习者英语笔语中的词块能力研究ppt课件

1、中国学习者英语笔语中的词块才干研讨许家金中国外语教育研讨中心北京外国语大学Lexical Chunks in Chinese Learners Writing (WECCL)Xu Jiajin Foreign Studies UniversityInterpretationsContentsHow to extract chunks in WS4?Comparisons of chunksChunksOther areas of collocationchunk词块/fl/clweek/pujz/chunks.pptChunk/lexical bundle/n-

2、gram/multi-word unit (expression)/formulaic sequence/prefabsCluster (词丛) in WordSmithWhy is lexical chunk important?Break language into units on a probabilistic basisRecurrentPsychologically realWhy is lexical chunk important?Form-function compositeCan we build the entire edifice of language solely

3、on lexical chunks?If not, what are the bricks & mortar of language?Lexical grammarLexico-grammarPattern grammarConstruction grammarCollostructionetcResearch questionAre there any differences of chunk use between Chinese learners of English and NNS?What are some of the possible underlying reasons?Lex

4、ical chunk extraction in WS4Step 01Cluster in Concord: Focusing on individual wordsWS4中词块的自动提取Lexical chunk extraction in WS4Step 02 Cluster in WordListIndexing corpus data before computing clusterWS4中词块的自动提取Lexical chunk extraction in WS4Step 03 How to index a corpus?1. Settings-Index First assign

5、a name to the text(s) to be indexed2. Make/Add to Index Then index the selected text(s).tokens and .types pairWS4中词块的自动提取Step 04 Extracting clusters in WordListWordList-Open *.tokensCompute-ClustersFile-Save/File-Save As2-8 word cluster list 多词词表 of WECCL and LOCNESSweccl index 2-word clustersweccl

6、index 6-word clusterslocness index 2-word clusterslocness index 6-word clustersStep 05 keyword list generation to test for chunk over- and under-use significanceKeyword list NewReference corpusChi-square test 卡方检验Log likelihood 对数拟然检验Keyness p value .05类似研讨管博、郑树堂，2005，中国大学生英语口语Small Words 的研讨，第6期。Ot

7、her tools for extracting lexical chunksKfngram William Fletcher Collocation ExtractionC-ngram N-gram PhraseExtract Tom Cobbs PagePIE: Phrase in English FletcherA quick summaryChunk definedHow to extract chunks from a corpus with WS4How to compare chunks with keywordInterpretationA bibliography of chunk researchAspects of collocation studyddyyx/wqf.rar ./lmc.rar ./wlf.ra