This paper discusses root phenomena in imperative clauses, assuming as diagnostics conversational dynamics and the type of discourse categories that are admitted in their C-domain, through a systematic comparative interface investigation in three languages (English, Italian and Spanish) based on an original experimental work. This novel perspective sheds new light on the syntax-semantics mapping and the interface (syntax-prosody) properties of imperative clauses, embedding the relevant proposal in a cartographic framework of analysis. Based on a twofold distinction of root phenomena – those which are widely allowed in Common Ground-active (Type I) contexts and those which can occur in non-Common Ground-active contexts (Type II) – it is proposed that imperatives are non-Common Ground-active propositions with no update potential, thus allowing only Type II root phenomena. Syntactically, imperative clauses are dominated by a super-ordinate Speech Act Phrase, including the Speaker and the Addressee as co-arguments, which explains the blocking effects identified in imperatives.

中文翻译：

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命令式的话语空间有多大？英语、意大利语和西班牙语界面的镜头*

本文通过基于原始实验的三种语言（英语、意大利语和西班牙语）的系统比较界面调查，讨论了命令式从句中的根源现象，假设诊断会话动力学和在其 C 域中被承认的话语类别的类型工作。这种新颖的观点揭示了命令式从句的句法语义映射和接口（句法韵律）属性，将相关建议嵌入到分析的制图框架中。基于对根源现象的双重区分——那些在共同基础主动（I型）上下文中被广泛允许的现象和那些可以在非共同基础主动上下文（II型）中发生的现象——建议命令式是非没有更新潜力的共同基础主动命题，因此只允许 II 型根现象。在句法上，祈使从句由上级言语行为短语支配，包括演讲者和收件人作为共同论点，这解释了命令中确定的阻塞效应。