Based on the stance triangle,270 abstracts from 18 Asian,European and American oncology journals respectively were randomly sampled.Statistically,LIWC2007 and Antconc3.2.4 were used to detect different pragmatic functions of stance adverbs,evaluative adjectives,stance verbs and we-words used in the abstracts.The findings indicate that stance construction via vocabulary resources in abstracts of medical papers published in international prestigious oncology journals varies strikingly.European writers and American writers highlight stance positioning and expression by using a variety of stance words,especially the initial stance adverbs.Additionally,stance words used in abstracts from European and American journals outnumber those from Asian journals.The findings also indicate that there is a positive correlation between the variety and frequency of stance words and thesis quality embodied by impact factor of journals.Additionally,the co-using of stance adverbs,stance verbs and we-words embody such multi-functions of stance words as evaluation,positioning and aligning,ultimately,to highlight the stance expression.This study can provide references and insight into stance words acquisition and develop medical academics'good command of stance vocabulary for academic discourse stance projection and construction.%本研究借助立场三角理论、LIWC 2007和Antconc 3.2.4语料分析软件,对随机抽样的18家肿瘤学期刊的270篇论文摘要中的立场动词、立场形容词、立场副词和用作立场显现的人称代词we进行对比语料统计分析.结果显示,国际权威肿瘤学期刊论文英文摘要词汇资源立场建构存在差异,欧美肿瘤学期刊论文立场词词频高于亚洲期刊,并善用丰富多样的句首立场副词凸显学术话语立场表达.立场词类丰富度、词频与期刊影响因子呈正相关.立场副词、立场动词、立场形容词和第一人称复数代词we联合使用发挥话语评价、定位、话语协同、显化立场表达的语用效果.本研究有助于医学研究者正确习得学术立场词汇,熟练操控立场词汇用于学术话语立场投射和立场建构.
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