The present thesis tries to analyze grammaticalization in English interrogatives from a pragmatic perspective, with a view to exploring its motivations, paths and mechanism.
本文旨在从语用学的角度对英语疑问句的语法化现象进行研究，试图揭示英语疑问句语法化的动机、途径和机制。
Those sentences could be categorized into declaratives, imperatives, and interrogatives.
这些句子可以分为陈述、命令、疑问句。
The frequently-used strategies of Chinese interrogatives acquisition in the context of natural conversation include using formulaic speech, repetition and simplification.
在自然对话情境下习得疑问句常用的策略是：使用套语、重复、简化等。
Interrogatives function to draw attention and stress but not to ask for the answers.
疑问语气不是为了得到回答而是为了引起注意和强调。
Interrogatives function to draw attention and stress but not to ask for the answers.
疑问语气不是为了得到回答而是为了引起注意和强调。
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