Includes References and index.

This chapter provides an overview of how linguists approach
the study of language. It describes language as one of many
different systems of communication, a system that is unique
to human beings and different from, for instance, the
systems of communication that animals employ. Language
exists in three modes: speech, writing, and signs (which are
used by people who are deaf). Although all languages (with
the exception of sign languages) exist in spoken form, only
some have written forms. To study language, linguists focus
on two levels of description: pragmatics, the study of how
context (both social and linguistic) affects language use,
and grammar, the description of how humans form linguis
tic structures, from the level of sound up to the sentence.

http://172.20.27.22:4000/handle/123456789/27