The study of the ways in which morphemes can be combined to form words is called morphology.

Modern linguistics is mostly prescriptive, but sometimes descriptive.

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

Language is p（）in that it makes possible the construction and interpretation of new signals by its users. In other words, they can produce and understand an infinitely large number of sentences which they have never heard before.

Syntax is different from morphology in that the former not only studies the morphemes, but also the combination of morphemes into words and words into sentences.

Morphology

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.

Human capacity for language has a g（）basis, but the details of language have to be taught and learned.

Both semantics and pragmatics study meanings.

Language