We argue that echo wh-questions are autonomous grammatical structures, and that their distinctive formal properties determine their semantics and pragmatics. Echo wh-sentences contain a wh-phrase in which the wh-element is narrowly focused, and a phrasal Q operator. Wh-phrase and Q operator determine a question semantics. Focus on wh determines the discourse appropriateness conditions for echo wh-questions, namely that an answer to the question be given in the context. A compositional analysis is provided that derives this interpretation.

中文翻译：

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关于回声疑问句的形式和解释

我们认为回声疑问句是自治的语法结构，它们独特的形式特性决定了它们的语义和语用。回声量词包含一个使词素狭窄集中的词组短语和一个短语Q运算符。Wh短语和Q运算符确定问题的语义。关注wh决定了回声wh问题的话语适当性条件，即在上下文中给出问题的答案。提供了得出该解释的成分分析。