Based on ESP genre analysis approach, this research analyzed discourse structure of data commentary in both testing and non-testing field. Two corpora of 600 samples (300 in each field) were collected to support this research. The results showed that the compulsory moves and steps of data commentary were “Outing data—Describing Data—Summarizing” .%本研究主要采用ESP学派体裁分析框架，得出数据评述的宏观语步结构，并对测试和非测试领域中数据评述的宏观语步特征进行对比分析。根据自建的由600篇语料（测试与非测试领域各300篇）所组成的数据评述语料库，得出数据评述的必选语步为“数据概述—数据描述—数据总结”。
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