Case Condition

Case Condition
【正确答案】：Case Condition is principle of general principles of Universal Grammer which requires that a noun phrase must have Case and Case is assigned by verb or preposition to the object position, or by auxiliary to the subject position. This theory accounts for the fact that noun phrases appear only in subject and object positions. (P86):格条件是普遍语法原则或条件之一。格条件要求,名词词组必须有格,而格被动词或介词指定在宾语位置,或者被助动词指定在主语位置。格条件理论可以解释名词词组为什么只能出现在主语和宾语位置这样一种事实。当名词词组移动时,它只能移到它可以被指定格的位置上,以便满足格的要求条件。