1957?? ? ???? ??? ???? ???? ‘???? ??’(Cognitive Theory)? ????. ?? “??? ??? ??? ?? ?? ???? ‘???? ??’(Language Acquisition Device· LAD)? ??? ???? ??? ??? ??? ‘??’? ???? ??? ?? ???? ?? ? ?? ??? ????? ??? ????? ??? ?? ???”? ????? ‘?? ?? ???’? ‘??? ?? ????’? ???? ????.

‘???? ??’? ??? ?? 10?? ?? ‘?? ?? ???’? ‘???? ???’? ??? ????? ?????? ??? ??? ????. ??? ??? 1970??? ????, ??? ?? ????? ??? ??? ???? ??? ??? ??? ‘??-??? ???’?? ???? ????, ?? ??? ?? ?? ‘????’(Functionalism)?. ??? ??? ‘?? ??? ?? ??????’? ?????? ?????? ? ??? ?????. ??? ??? ??? ??? ???? ??? ????? ??? ??? ?? ? ??? ??-????? ?? ????? ??? ?? ??? ? ? ??? ??? ??? ????.

??? ??? ????? ??? ??? ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ‘??’ ?? ‘??’(function)? ‘??’ ‘??’ ‘??’ ‘??’ ‘??’?? ‘??’(notion)?? ??? ???? ??? ??? ?????.

? ??? ??? ? ???? ?? ??? ??? ????? ?????? ‘?? ??????’? 3? ??? ‘?? ??? ?? ?? ??’? ???? ‘???? ??’? ‘?? ??? ??? ?? ??? ????’? ???? ‘???? ??’, ??? ‘?? ??? ?? ??????’? ???? ‘???? ??’??? ? ? ??.

???? ????? ???? ?? ?? ????? ????? ?????. ?? ?? ???? ??? ??? ??? ?? ???? ???? ??? ???? ??? ?? ???? ??? ? ???.

?? ??? ????? ???? ??? ???? ????? ???? ??? ???? ??? ?? ??? ???? ???? ??. ??? ???? ??? ?? ???? ???? ???? ????? ? ?? ‘??? ?????’? ?? ???? ????? ??.

(???? ?263?)