From the perspective of diction in English writing,the article discusses the confusion of word meaning and over-redundancy caused by negative cultural transfer .

It displays infinite beauty in the aspects of diction,rhyme and image.

As one of the basic means in modem rhetoric, diction covers three aspects——purity, accuracy and appropriateness.

This paper presents some wording errors,analyses the causes of wrong diction in students writing in the hope of improving students ability of wording in English writing.

The article summarizes the basic principles students should grasp in the aspects of wording sentence-making paragraph and coherence,etc.

From the perspective of documentation retrieval, it is pointed out that knowledgeable tradition must be respected, the analysis be paid great attention to and the reasoning be emphasized through the analysis of many defects of the wording and expression in that paper.