The paper attempted to understand the features of the public language in Zhoushan City by conducting a survey in the governmental organizations and public service industries with the purpose of standardizing public language,purifying the social atmosphere and establishing good social moral style.

With the globalization of the world,international cultural communication has become prevalent,and the standardization of English version of public language is vital to communication,and to economic and cultural development.

Thus social pragmatics manifests demotic cultural qualities、 moral attainments and spiritual features of a society.

From the aspects of social pragmatics, this article analyses the existed semantic bias and prejudice in sex, race, class, area, profession, etc.

Starting from the perspective of societal pragmatics and based on lots of examples,this paper has done research into economy principle in English and Chinese advertising language from such aspects as brevity,rhetoric and celebrity effect.

Societal Pragmatics, which studies the social settings of language use, regards language as a social phenomenon.

In this paper,causes and examples of socio-pragmatic failure are collected and analyzed.

This paper probes into pragma-lingustic failures andsocio-pragmatic failures by analyzing several examples of mistranslation and comes up with some tranlation strategies for pragmatic equivalence purposes so as to accomplish the slogans\' intended goals.

There are two reasons for the semantic extension military terms:First,from the point of the external linguistic system,it is mainly similar to the pragmatic content and related to some social cultural pragmatic conditions such as the rhetoric figures,the psychological factors in speech communication and so on.