为什么可以说“飞往北京” ,但却不能说“扔往地上” ,这是留学生颇感困惑的一个问题。本文试图解答这个问题 ,从动词和介词“往”的宾语Np两个方面 ,对“往Np +V”和“V +往Np”两种格式的区别展开分析 ,指出“V +往Np”这一结构受到几方面的限制 :V必须是 [+持续 ]、[+位移 ]的 ;同时“往”的宾语Np在形式上必须是地点名词 ,在语义上表示目的地。文章最后从认知角度予以解释 Why can I say “flying to Beijing” but I can not say “throwing it on the ground?” This is a very puzzling question for international students. This article attempts to answer this question by analyzing the differences between the two formats “Np + V” and “V + Np” from the verb Np and the preposition np, and points out that “V + Np” A structure is limited in several ways: V must be [+ continued], [+ shift]; while the object “going” Np must be formally a place noun and semantically represent a destination. Finally, the article from the cognitive point of view to explain