Abstract Based on Bhatia’s multi-dimensional analytical framework for discourse analysis, we explore key issues involved in genres construction such as private intention, manipulation of generic value and interdiscursive strategies. Two prefaces and two book reviews by expert linguists were collected and analyzed at great length from both text-internal and text-external perspectives. Meanwhile, four professionals from relevant disciplines were interviewed for their insights into the issues investigated. Through examining textual features, covert interdiscursivity and narrative accounts of the professional writers, the following findings are generated. 1) Generic variation occurs within and between the two genres due to expert writers’ intentional manipulation of generic value. 2) Interdiscursive strategies like “genre embedding”, “genre bending” and “genre mixing” are exploited by expert writers to achieve their particular private intention. Specifically, preface genre can be presented, to some extent, as a research article mixed with some promotional flavor, and features of research article genre, promotional genre and introductory genre are found mixed in the review genre. 3) Representations of the preface and book review genres such as linguistic feature, move structure and interdiscursivity are ultimately affected by generic value, authors’ private intention, professional practice and disciplinary culture. The findings have important implications for ESP/EAP writing practitioners and learners.

中文翻译：

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通用变化与私人意图：书评和序言的多维探索

摘要基于Bhatia语篇分析的多维分析框架，我们探讨了体裁建设中涉及的关键问题，如私人意图，通用价值操纵和跨学科策略。专家语言学家收集了两个序言和两个书评，并从文本内部和文本外部两个角度进行了详尽的分析。同时，对来自相关学科的四位专业人员进行了采访，以了解他们对所调查问题的见解。通过研究专业作家的文本特征，隐蔽性的相互散布性和叙述性叙述，得出以下发现。1）由于专家作者对通用价值的有意操纵，两种类型之间以及两者之间发生了通用变异。2）跨学科策略，例如“体裁嵌入”，专家作家利用“流派弯曲”和“流派混合”来实现其特定的私人意图。具体地，可以在某种程度上将前言体裁呈现为具有某种推广风味的研究文章，并且在评论体裁中发现研究体裁，推广体裁和介绍体裁的特征。3）序言和书评体裁的表示形式（例如语言特征，动作结构和互不相关性）最终受通用价值，作者的私人意图，专业实践和学科文化的影响。该发现对ESP / EAP写作从业人员和学习者具有重要意义。作为带有某种促销风味的研究文章，在评论类型中发现了研究文章类型，促销类型和介绍类型的特征。3）序言和书评体裁的表示形式（例如语言特征，动作结构和互不相关性）最终受通用价值，作者的私人意图，专业实践和学科文化的影响。该发现对ESP / EAP写作从业人员和学习者具有重要意义。作为带有某种促销风味的研究文章，在评论类型中发现了研究文章类型，促销类型和介绍类型的特征。3）序言和书评体裁的表示形式（例如语言特征，动作结构和互不相关性）最终受通用价值，作者的私人意图，专业实践和学科文化的影响。该发现对ESP / EAP写作从业人员和学习者具有重要意义。专业实践和学科文化。该发现对ESP / EAP写作从业人员和学习者具有重要意义。专业实践和学科文化。该发现对ESP / EAP写作从业人员和学习者具有重要意义。