A Cognitive Linguistics Study on Japanese Polysemous Constructions and their Treatment in Japanese Textbooks.

我收集了一些日语词汇，如zenzen，nanode，tteyuka，kedo，这些词的含义和用法在这100年里发生了变化，并通过各种语料库数据，如《青空小说》、《太阳语料库》和网上BBS数据，调查了它们的含义和用法是如何变化的。基于这些数据，我最后从认知语言学和构式语法的角度解释了新的意义和用法是如何以及为什么会产生的。

I picked up some Japanese expressions such as zenzen, nanode, tteyuuka, kedo, the meanings and usages of which have changed in these 100 years, and made some investigations into how they change their meanings and usages through various corpus data like novels on "Aozora-Bunko", "Taiyo corpus", and BBS data on the web. Based on these data, I finally explained how and why new meanings and usages have grown from the viewpoint of Cognitive Linguistics and Construction Grammar.