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近年来,由于计算机在语言研究中的普遍应用和自然语言自动处理工作的发展,出现了一些具有很浓厚的方法论色彩的语言理论。这些理论不仅告诉我们语言的规律,而且还指导我们如何去研究和发现这些规律,带有普遍的方法论意义,这是现代理论语言学的一个非常重要的特点。这些琳琅满目的新理论,几乎都把改进Chomsky短语结构语法的不足作为自己的目标之一。这种改进基本上是从两个方面来进行的:一方面是保持短语结构语法的原有面貌,采用转换的方法来提高语法的描述和解释能力;另一个方面是不采用转换,而对于短语结构语法进行
In recent years, due to the widespread application of computers in language research and the development of automatic processing of natural languages, some linguistic theories with a strong methodology have emerged. These theories not only tell us the rules of language, but also guide us to study and discover these laws with the universal methodological significance. This is a very important feature of modern theoretical linguistics. Almost all these new assortment of theories put one of their own goals to improve the deficiencies of Chomsky’s phrase structure grammar. This improvement is basically carried out in two aspects: on the one hand to maintain the original appearance of the phrase structure grammar, the use of conversion methods to improve the ability to describe and explain the grammar; the other is not to use conversion, and the phrase Structure syntax