This thesis investigates the question of how the arguments of a given verb are linked to positions in a phrase structure. Through a study of passives, psych verbs, and ditransitive verbs in Japanese, it provides empirical support for the hypothesis that arguments having particular thematic roles are associated with particular syntactic positions systematically.Chapter 2 deals with passives, in particular, two types of passive constructions, direct and indirect passives. Following some previous works, it is argued that the subject of a direct passive is generated in the same position as an object of the corresponding active verb, having the same thematic role, whereas the subject of an indirect passive is projected as an argument of a separa...