It finds that renjia(人家) referring to “I” implies the relation of power and the function of euphemism and that referring to “you” implies an objective and distant attitude and politeness function.

To recognize and understand about the etiquette function of the kinesics in different cultures,that being one of nonverbal communication modes is significant for the people with different culture background to be in communi.

However,foreign trade English has its special language features and expressions,courtesy for one.

This article makes it clear that tourist staff should be dignified in appearance, graceful in manner, and elegant in language and from these three aspects to strengthen their courtesy cultivation and foster good professional manner.

As per business properties and ethics,business language must comply with the 3"C" principles: clearness,conciseness,courtesy.

Investigation and analysis of politeness in intercultural daily speech communication;

Application of Politeness Principle in English Class Teaching;

On Politeness Translating Between Different Culture Communication;

Thanking as a convivial speech act is polite in essence.

It is extremely necessary to analyze the violation of cooperative principle for the purposes of being polite,humorous and ironic.

Chanting Songs was transformed from ceremonial Songs,an important rite of sacrifice,banquet and archery in the Western Zhou Dynasty and the ritual function of the Songs was obvious.