man， who， when he was student， studied hard but neglected his health. no sooner did he come to serve the country than he died of poor health. from this we may see that to have a strong body is really very important for a student.
lastly， to cultivate one's own virtue is most important. virtue is the essence of a noble and good character. it will greatly help one to be useful and his country heart and soul. when learned people go astray， they do more harm than good to society. we should draw lessons from this.
这篇文章的第一段引出了文章的主题，第二、第三和第四段则是文章的正文，每—段的第一句即是段落的主题句，它们既支持了文章中心的观点和思想，同时又概括了全段的意思。在同一段落中，其余的句子都围绕主题句所表示的中心展开，同时句子间的衔结也很自然；各层的意思都很连贯。
分段是文章组织上重要的一步，但如果写的题目范围很小，那就无须再将题目分成小的主题，并分入各个段落去阐述了。像一篇简短的评论；某一事情的简短记载，某一个想法的说明，对一个人物或一件事情的简要叙述或说明等，就可以只用一个段落来表现主题。