【正确答案】正确答案：Case Grammar is an approach that stresses the semantic relationships of elements in a sentence. In this grammar, the verb is regarded as the key part of the sentence, and has a number of relationships with various noun phrases. These relationships are called "cases".(5 points) For example, in the sentences: Smith killed the policeman with a revolver. This revolver killed the policeman. With a revolver and This revolver have different syntactic functions, but their semantic relationships with the verb kill are the same in both sentences. This revolver is the instrument with which the action of the verb kill was performed; with a revolver indicates the manner in which the killing action took place. From the above examples, we can see that in Case Grammar, the verb is the key element of the clause.(5 points)

【答案解析】解析：考查格语法。格语法是着重研究句子成分之间关系的分析方法。在该语法中，动词被视为句子中最为重要的部分，与众多的名词短语有着一系列的关系。这些关系统称为“格”。如在Smith killed the policeman with a revolver．和This revolver killed the policeman．中，with a revolver和this revolver分别有不同的句法功能，但它们与动词kill的语义关系却完全相同。revolver是kill这一动作得以施行而凭借的工具；with a revolver描述了kill这个动作发生的方式。