Language is a system of a（）vocal symbols used for human communication.

Pragmatics

The distinction between competence and performance was proposed by F. de Saussure.

Findings in linguistic studies can often be applied to the settlement of some practical problems. The study of such applications is generally known as a（）linguistics.

D（）is one of the design features of human language which refers to the phenomenon that language consists of two levels: a lower level of meaningless individual sounds and a higher level of meaningful units.

General linguistics, which relates itself to the research of other areas, studies the basic concepts, theories, descriptions, models and methods applicable in any linguistic study.

Langue refers to the a（）linguistic system shared by all the members of a speech community while the parole is the concrete use of the conventions and application of the rules.

Linguistics

P （）refers to the realization of langue in actual use.

Pragmatics is different from semantics in that pragmatics studies meaning not in isolation, but in context.