疑问和焦点是两种重要的语法范畴，它们之间存在着内在的联系。本文从疑问表达手段入手， 从跨语言的视角来分析疑问和焦点之间的关系问题。研究发现不同的疑问表达手段会对疑问焦点的确定方式产生不同的影响，即语音手段不能决定该疑问句的焦点；词汇手段表示特指问，并且能够决定该疑问句的焦点；语法手段的情况比较复杂，英语、法语和汉语这三者之间既有一定的共性，也有差异性。疑问和焦点之间的关系体现为一种双向互动关系。

Interrogation and focus are two important grammatical categories, and they are intrinsically linked. This paper starts with interrogative expression means, and analyzes the relationship between interrogation and focus from a cross-language perspective. Research found that different interrogative expression means have different effects on the determination of interrogative focus, that is, phonetic means can’t determine the focus of the interrogative sentence. Lexical means indicate special questions and can determine the focus of the interrogative sentences. The situation of grammatical means is quite complicated and English, French and Chinese have some similarities and differences. The relationship between interrogation and focus is reflected in a two-way interactive relationship.