Since the publication of Chomskys Syntactic Structures, studying language from cognitive perspective has become a main way of linguistics. Meanwhile, linguistics has become one basic subject of cognitive science. The activity of words is a new level in mental and cognitive development. However, except for language, there are other kinds of mental and cognitive activities for human beings. Generally speaking, cognitive science is a cross-integration of disciplinary groups formed by the discipline of linguistics, philosophy, psychology, computer science, anthropology and neuroscience, whose aims is fully exploring the basic human mental activity and cognitive abilities, as well as artificial realization of these capabilities.