English Profile (EP) is an ongoing empirical exploration of learner English initiated by Cambridge University Press and Cambridge English, among others. EP aims to create a set of empirically-based descriptions of language competencies for English. ‘Reference Level Descriptors’ already exist as part of the Common European Framework of Reference (CEFR) but are intuitively derived and not designed for one specific language. The English Grammar Profile (EGP, www.englishprofile.org/english-grammar-profile) is a sub-project of EP which aims to profile learner competence in grammar. This paper details the rationale for the study and the methodology that was developed to investigate the Cambridge Learner Corpus to arrive at over 1,200 grammatical competence statements. Key findings which link to existing corpus-based second language acquisition work are also presented.

中文翻译：

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学习者能力的英语语法概况

English Profile (EP) 是由剑桥大学出版社和剑桥英语等机构发起的对学习者英语的持续实证探索。EP 旨在创建一套基于经验的英语语言能力描述。“参考水平描述符”已经作为欧洲共同参考框架 (CEFR) 的一部分存在，但它是直观派生的，并不是为一种特定语言设计的。English Grammar Profile (EGP, www.englishprofile.org/english-grammar-profile) 是 EP 的一个子项目，旨在描述学习者的语法能力。本文详细介绍了该研究的基本原理以及为调查剑桥学习者语料库以得出 1,200 多个语法能力陈述而开发的方法。