Abstract Rhetorical moves are discoursal units that perform communicative functions in a given genre. They have been manually identified in many previous studies taking a corpus-based approach, and these studies have provided important contributions to discourse structure theories. However, manual analysis has restricted the scale and quantity of texts under investigation and the identification of moves is likely to be influenced by researchers' prior knowledge. In contrast, a corpus-driven approach, by applying automatic computational technology to process a large number of texts, possibly results in a better representation of the moves in a genre and minimises researcher bias in move identification. This study applies one typical corpus-driven approach, a bundle-driven approach, to analyse rhetorical moves of PhD abstracts, a move-intensive genre. The study focused on 5-word sentence initial bundles. Almost all the generated bundles could be identified as move indicators. The majority of the indicated moves aligned with the moves proposed for research article abstracts in previous studies, and one new move, Structure, was identified. This study indicates the potential of a bundle-driven approach in exploring rhetorical moves and in examining the linguistic features of moves by means of lexical bundles. Pedagogical implications for EAP writing are also suggested.

中文翻译：

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束驱动的移动分析：博士论文摘要中的句子初始词法束

摘要 修辞动作是在给定体裁中执行交际功能的话语单元。之前的许多研究都采用基于语料库的方法对它们进行了人工识别，这些研究为话语结构理论做出了重要贡献。然而，人工分析限制了所研究文本的规模和数量，动作的识别很可能受到研究人员先验知识的影响。相比之下，语料库驱动的方法通过应用自动计算技术来处理大量文本，可能会更好地表示一种类型的动作，并最大限度地减少研究人员在动作识别中的偏见。本研究应用了一种典型的语料库驱动方法，即捆绑驱动方法，来分析博士摘要的修辞手法，动作密集型。该研究侧重于 5 个单词的句子初始包。几乎所有生成的包都可以被识别为移动指标。大多数指示的动作与先前研究中为研究文章摘要提出的动作一致，并且确定了一个新动作，结构。这项研究表明了束驱动方法在探索修辞动作和通过词汇束检查动作的语言特征方面的潜力。还建议了 EAP 写作的教学意义。这项研究表明了束驱动方法在探索修辞动作和通过词汇束检查动作的语言特征方面的潜力。还建议了 EAP 写作的教学意义。这项研究表明了束驱动方法在探索修辞动作和通过词汇束检查动作的语言特征方面的潜力。还建议了 EAP 写作的教学意义。