[目的/意义]引用语境是科学论文中包含引用的句子，是对引文的描述性或评价性文字。通过提取和分析引用语境中的线索词，可以了解引用语境的一般特征。[方法/过程]以Journal of Informetrics（JOI）期刊为例，选取人称代词、行为动词和连接词三类常用的线索词，分别计算它们在引用语境中的频次、占比和排序。通过比较各类线索词在引用语境和非引用语境中的存在度，识别引用语境中的常用句型和论证模式。[结果/结论]在JOI期刊中，引用语境主要表现出如下特点：侧重于第一人称和第三人称论述，既展现他人的工作，也展现作者的研究；偏重于研究方法类引用，常用的行为动词为"use""base"和"study"；强调通过转折和列举等逻辑方式进行论证，最常用的连接词位"also"和"but"。分析引用语境中的线索词，对于更好地理解科学论文中的引用的功能和动机具有重要的价值和意义。
[Purpose/significance] A citation context is a descriptive or evaluative sentence in scientific papers that contains references. By extracting and analyzing the cue words in the citation context, we are able to identify the citation behavior and motivations. [Method/process] Taking citation contexts in Journal of Informetrics as an example, we selected three kinds of commonly used cue words, such as personal pronouns, behavioral verbs and conjunctions, and respectively calculated the frequency, proportion and ranking in the citation context. By comparing the existence of cue words in the citation context and non-citation context, the common sentence pattern of citation contexts was characterized. [Result/conclusion] In Journal of Informetrics, the citation context mainly shows the following characteristics:a) focusing on the first-person and third-person perspectives, the citation context not only shows the works of others, but also shows the authors' own research; b) citing papers prefer to citing references involved research methods, and the most commonly used behavior verbs are"use" "base" and "study"; c) adversative and enumerative sentences are the main demonstration modes. The most used conjunctions are"also" and "but". In conclusion, the citation context analysis based on cue words has important value and significance for us to better understand the functions and motivations of citations in scientific papers.
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