One possible version：

Form a Good Living Habit

Through the survey we find that many students have some bad habits in life and diet. For example, some students don’t eat breakfast . When they feel hungry, they eat some snacks between classes. And also some others don’t like to eat vegetables but enjoy eating the kind of food rich in calories. What’s worse they did not do enough exercise. As a result many of them begin to gain weight and often have some health problems.

In order to keep healthy, therefore, we should realize the importance of healthy diet and try to develop good living habits. It will benefit us to eat breakfast on time and have more healthy food. Besides, we should also take more exercise.

题目分析：本篇作文材料是关于习惯的，内容贴近学生实际生活，属于话题作文。 对既定的话题进行讨论，学生有一定的自由发挥空间，可以畅所欲言，各抒己见。就本篇作文而言，内容涉及了三方面，即学生中存在的一些不良现象、由此导致的健康问题和给人们提出的建议。在写作时要注意合理安排内容，在遣词造句上，应多使用一些高级词汇和高级句型，如定语从句、倒装结构、非谓语动词和强调句型等，恰当地穿插一些过渡性词语，比如on the other hand、besides、as a result等，这样会使文章自然、流畅，有较强的逻辑性。

【亮点说明】本篇范文不仅语言清晰流畅，简洁自然，而且要点全面。文章开门见山提出话题，然后用for example、some、others、what’s worse和as a result等词语列举出学生们中间所存在的一些不良现象和导致的健康问题。此外，作者还用不定式短语in order to 和副词therefore, besides等引出作者所提的建议，这些连接词的使用不仅很好的起到了承上启下的作用，而且使文章上下衔接自然，结构清晰，层次分明。文中出现的大量短语rich in 、gain weight、develop good living habits. 和take more exercise.反映出作者词汇的丰富，也使文章更加简洁明了，清晰易懂。