Importance Of Second Language Acquisition

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Introduction: SLA stands for Second Language Acquisition, the field of research and theory is sub discipline of applied linguistics which is closely related to psychology, cognitive psychology and education. It deals with learning a second or foreign language (i.e., any language that is not one’s mother tongue). SLA is relatively new field and it is hard to state a “beginning” date, but the study significantly developed in the past 45-50 years, it is still far from a complete there but there is a progress. According to Susan M. Gass and Larry Selinker “it is the study of how second languages are learned. It is the study of the acquisition of a non-primary language; that is, the acquisition of a language beyond the native language. It is the study of how learners create a new language system with only limited exposure to a second language. It is the study of why most second language learners do not achieve the same degree of knowledge and proficiency in a second language as they do in their native language; it is also the study of why only some learners appear to achieve native like proficiency in more than one language” (An introductory course., p.1) The main purpose of this chapter is to (1) to examine what is meant by the term Second Language acquisition, (2) what are the goals of studying second language and (3)what is role of input, output and interaction in second language acquisition. What is second language acquisition? While exploring SLA research, obviously
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