One possible version:
The writer illustrates that it is important to teach children some skills of becoming good citizens. Therefore, he suggests teaching children to pick up things by themselves, to respect others and follow the laws.
As far as I am concerned, a civilized citizen is supposed to respect others. In public places, such as restaurants, stations or hospitals, a civilized citizen would not speak or talk loudly. Besides, a civilized citizen ought to be always ready to reach out their helping hands. Last but not the least, a civilized citizen should be aware of the significance of obeying the law.
As a senior high school student, I will do what I can to become a civilized citizen in my daily life. For example, I will pick up rubbish on the ground and put it into the dustbin. On my way to school, I will follow the traffic rules. All in all, I will do what I am expected to do. Only in this way can we make our hometown a more comfortable place for all of us to live in.
这篇书面表达给了一段材料：先要求以约30个词概括上文的主要内容，要求有很高的概括提炼的能力，要抓住文章的主题，再以约120个词写一篇短文, 本文属于读写任务写作，动笔前，一定要认真阅读原文，并理解内容。认真看清题目要求，不能遗漏要点，跑题偏题。平时除了加强词汇积累，写作联系以外，还可以适当记忆一些类似的范文，这样在考试中可以起到事半功倍的效果。
【亮点说明】文中使用了非常好的短语和句子为文章增色不少，比如in my daily life,pick up, be ready to do还运用了It is important to do…句式; what I can to become a civilized citizen in my daily life引导的宾语从句及Only in this way can we make …倒装句等等。并注意了句子的衔接如：Therefore , Besides,As far as I am concerned, Last but not the least, For example, All in all等等。