We reexamine cases of coordinated elements that do not match in syntactic category. We show that these fall into two types. The first type includes predicates, modifiers in the clausal domain, and such modifiers apparently coordinated with arguments. We argue that these do not actually involve coordination of unlike categories. The second type involves coordinated arguments of different categories. With this type, unlike the first, noninitial conjuncts may violate selectional restrictions. To account for these violations, researchers have typically posited a special status for the first conjunct in a coordinate structure, such that it alone can determine the category of the coordinate phrase. We show that such accounts are untenable. First, the final conjunct can be what matters for selection, if it is closest to the selecting or selected element. Second, category mismatches are not free, but are extremely limited and exactly match those observed in ellipsis and displacement. This calls for a uniform account of these mismatches, not one specific to coordination. We spell out such an analysis, in which displacement, ellipsis, and coordination permit certain categories to behave as certain other categories through their effects on null syntactic heads.

中文翻译：

---

重新讨论类别不匹配

我们重新检查在语法类别中不匹配的协调元素的情况。我们证明了它们分为两种类型。第一种类型包括谓词，子语域中的修饰语，以及此类修饰语显然与自变量协调。我们认为，这些实际上并不涉及不同类别的协调。第二种类型涉及不同类别的协调参数。与第一类型不同，使用这种类型的非初始混合词可能会违反选择限制。为了解决这些违规问题，研究人员通常为坐标结构中的第一个合取词设定特殊的状态，以便仅凭它就可以确定坐标短语的类别。我们证明这种帐户是站不住脚的。首先，如果最接近选择元素或被选择元素，则最终合取词可以是选择要紧的内容。其次，类别不匹配不是免费的，而是极其有限的，并且完全匹配省略号和位移中观察到的那些。这要求对这些不匹配情况进行统一说明，而不是专门针对协调问题。我们详细说明了这样一种分析，其中位移，省略号和协调允许某些类别通过其对空句头的作用而像某些其他类别一样起作用。