The paper,by the observation and statistical analysis on LIU Cheng-min first-hand-defense techniques in backhand location,explains all kinds of techniques of LIU Cheng-min first-hand-defense techniques in backhand location,such as forehand or backhand use proporˉtio.

Through the observation and statistical analysis on the first hand defend of backhand location technology of Wang Hao,this paper discusses the universal law and development trend of first hand defend at backhand location process of pen-hold grip player.

Based on the novel named Great Gatsby,the article elaborates three striking features of its narrative art: clever character design of Nick for weaving the story and deepening its theme,ingenious application of irony in conveying the in-depth implication of the novel,diversified angles of depiction for extending time,space and enlarging information amount.

Because of irony,his official recount presents a kind of aesthetic implication that grandeur containing absurdity、harshness revealing cynicism、quietude containing animadversion.

With the methods of documentation,observation and analysis,interview,the article makes a systematic all-round study on the tennis skill and tactics of backhand cuts,a summary analyses on the features and rules of skill and tactics of backhand cuts of the excellent players home and abroad,in order to provide a reference for a further promotion of our country tennis level.