LangueandParoleLangueisthesystemofalanguage,thelanguageasasystemofforms,whereasparoleisactualspeech,thespeechactsthataremadepossiblebythesystemofthelanguage
That`sistosay,langueisthesocialproductwhoseexistencepermitstheindividualtoexercisehislinguisticfaculty;parole,ontheotherhand,isthe“executivesideoflanguage”
ComparativeLinguisticsAbranchoflinguisticswhichstudiestwoormorelanguagesinordertocomparetheirstructuresandtoshowwhethertheyaresimilarordifferent
Comparativelinguisticsisusedinthestudyoflanguagestypesandincomparativehistoricallinguistics
Itisalsousedbysomeappliedlinguistsforestablishingdifferencesbetweenthelearner’snativelanguageandthetargetlanguageintheareasofsyntax,vocabulary,andsoundsystems
Empiricism(经验主义)Anapproachtopsychologywhichstatesthatthedevelopmentoftheorymustberela