It provides a chapter on each of the more established areas in linguistics such as lexicology, morphology, syntax, phonetics and phonology, historical linguistics, and language typology and on some of the newer areas such as cross-cultural semantics, pragmatics, text linguistics and contrastive linguistics.
This is a study of the phonological development of a family of L2 English learners.
Language description plays an important role in language learning/teaching because it often determines what specific language forms, features, and usages are taught and how.