sociolinguistics
1.Polivanov had a wide range of thoughts, mainly on sociolinguistics, semiotics and phonetics.
2.Established some courses such as Chinese studied , the history of Chinese language , phonology , lexicology , sociolinguistics for the graduate students.
3.Deborah Schiffrin in Approaches to Discourse introduces six different ways to do discourse analysis: speech act theory, interactional sociolinguistics, ethnography of communication, pragmatics, conversation analysis and variation analysis.
4.Class of masses medium major includes the study of the course such as a Confucian school of idealist philosophy of the Song and Ming Dynasties of the semeiology, sociolinguistics, history, sociological, anthropologic understanding that reach an agency.
5.The thesis explores advertising language from the perspective of sociolinguistics,and finds that advertising language is affected by such social factors as social changes,regional variations,gender role and age difference. At the same time,the function of the four factors in advertising language is analyzed in virtue of the theory of AIDA.

