This paper presents a text-based study of the construal of entities through nominal groups in Lhasa Tibetan based on a focus text selected from a local folk tale. It approaches the grammatical description of nominal group systems and structures from ideational and textual perspectives, taking as point of departure the discourse semantic systems of ideation and identification. From the perspective of ideation, nominal groups construe entities that realize items in field, which are classified or composed, with or without associated properties. From the perspective of identification, nominal groups either present or presume the identity of entities in discourse. In terms of nominal group grammatical functions, the nucleus of a Lhasa Tibetan nominal group is a Thing, which enters into multivariate structure with post-Thing functions including Classifier, Epithet, Quantity, Perspective, Deictic and Function Marking, and pre-Thing functions Qualifier and Embedding Marking. In terms of word classes realizing these functions, Lhasa Tibetan nominal groups involve nouns, pronouns, adjectives, numerals, quantifiers, determiners and clitics. The description also deals with complexing and embedding.

本文基于从当地民间故事中选取的焦点文本，对拉萨藏语通过名义群体对实体的解释进行了基于文本的研究。它从概念和文本的角度来接近对名义群体系统和结构的语法描述，以概念和识别的话语语义系统为出发点。从概念的角度来看，名词性群体是在领域中实现项目的实体，它们被分类或组合，有或没有相关的属性。从识别的角度，名义群体要么在话语中呈现或假定实体的身份。就名词性群语法功能而言，拉萨藏语名词性群的核心是一个Thing，它进入多元结构，后物功能包括分类词、加词、数量、透视、指示性和功能标记，以及前物功能限定词和嵌入标记。就实现这些功能的词类而言，拉萨藏语名词性名词、代词、形容词、数词、量词、限定词和附着词。该描述还涉及复合和嵌入。