汉语单句句型划分为主谓句和非主谓句具有充分的科学和实际根据。非主谓句是主谓句以外的句子，其属性并非全然为谓语性质。在对非主谓句进行下位小类划分时应该坚持句法结构标准，并依第一层次结构关系名之。非主谓句的语义指向不同于主谓句，句中某个成分语义指向的对象可能在句内，也可能在句外。非主谓句的主题也存在可能存于句外的情形，但句子的重点或焦点则只能在句内。

Chinese single sentence patterns are divided into subject-predicate sentences and non-subject-predicate sentences. The division has sufficient scientific and practical basis. Non-subject-predicate sentence is a sentence without a subject-predicate pattern, and its attribute is not entirely predicate. When we classify a lower class of a non-subject-predicate sentence, we should adhere to the standard of syntactic structure and name it according to the first level's structural relation. The semantic direction of a non-subject-predicate sentence is different from that of a subject-predicate sentence. The semantic object of a certain component in a sentence may be inside or outside the sentence. The topic of a non-subject-predicate sentence may exist outside the sentence, but the focus of the sentence can only be in the sentence.