This paper discusses two controversial issues of the English existential: definiteness and agreement.

A qualitative categorization is discussed for the 38 observation-points of teaching level assessment system and a special inquiry is conducted into the ‘fuzzy-mathematics’ theory,method and application in the quantitative analysis of indefinite indexes.

The paper attempts to address the problem of the translator as the subject of translation in the light of the analytic philosophy,specifically,Quine s indeterminability of reference and the thesis of translational indeterminancy.