This paper briefly discusses the pragmatic principles and the writing principles for business correspondence and points out the high consistency between these writing principles and the cooperative principle and politeness principle.

The paper analyzes its form, its writing principle as well as its language feature in details.

the rule that writing activity must observe, whereas the characteristic of writing is the feature which distinguishes writing work from work of other kinds, the writing principle is the standard to be observed in writing and writing method is the concrete means usually applied in writing activity.

How to write this kind of letters well? I believe that the following three aspects are very important: to master foreign trade English, to familiarity with foreign trade practice and to grasp the "7C" writing principles.

This paper discusses the role and importance of the abstract of scientific research paper and suggests the following writing principles.

By analyzing the writing motive of Franklin for his autobiography,the essay probes into the thoughts and propositions that Franklin wanted to express,and regards the educative function as the motives for Franklin s Autobiography,assuming that Franklin,starting from his educative motives,expresses his deep thoughts from two aspects of"self,"i.