英语翻译原文“本文共分为四个部分.主要内容包括对以往国内外研究的介绍与总结、对本底趋势线理论的阐述、对上海世博会游客数的

英语翻译
原文“本文共分为四个部分.主要内容包括对以往国内外研究的介绍与总结、对本底趋势线理论的阐述、对上海世博会游客数的实例分析、根据分析结果作出的结论及总结.
第一部分通过对研究背景、意义的阐述,介绍了国内外关于事件旅游及本底趋势线的研究现状并得出了此次研究的作用.
第二部分通过对本底趋势线理论的阐述,介绍了本底趋势线的概念、基本形式、应用SPSS中的非线性回归对模型进行拟合.并简述了其优缺点.
第三部分为本文的重点,按照分析步骤的先后,依次确定研究数据、处理数据、拟合模型、计算绘图、定义评估指数,得出分析结果.
第四部分为结论及总结,通过第三部分得出的分析结果作出最终的结论,并对此次的研究过程作出总结.“
译文”This article is divided into four parts.Its major content comprises summary and introduction of past domestic and foreign research、the statement for the Background Trend Line Theory、 case study for the ammount of Shanghai World Expo 2010 visitors、and the conclusions and summary which is made according to the analysis results.
The first part of the research background,the significance of the elaborate,This paper introduces the background of events tourism and the trend line of the status quo and the role of the study obtained .
The second part of the background trend line by the end of the exposition of theory,introduces the concept of the bottom trend line,the basic form,the application SPSS the nonlinear regression fit of the model.And summarizes its advantages and disadvantages
The third part is the key point of this article.And it's written according to the steps of analysing,such as determining the data of research ,data processing,model fitting,calculating and map-drawing,and define of evaluational index .And then,the results can be obtained.
The fourth part is Conclusions and recommendations,through the third part of the analysis results obtained made a final conclusion,and the research process of this makes a summary.“

This article is divided into four parts.Its major content comprises the introduction and summary of the past domestic and foreign researches,the statement for the Background Trend Line Theory,the case study for the number of Shanghai World Expo 2010 visitors、and the conclusions and summary which are made according to the analysis results.
The first part of this paper,by way of stating the background and meaning of this study,introduces the status quote of Event tourism and the study of Background Trend Line and the importance and effects of this study.
The second part,by way of the exposition of the background trend line theory,introduces the concept and the basic form of the background trend line,as well as the application of the nonlinear regression of SPSS to fit the model,and summarizes its advantages and disadvantages
The third part is the key point of this article.And it's written according to the steps of analysing,such as determining the data of research ,data processing,model fitting,calculating and map-drawing,and evaluational index defining,and then obtain the analysis results.
The fourth part is Conclusions and recommendations,through the analysis results obtained in the third part,the final conclusion is made,and the research process of this study is summarized.