不唯一

One possible version:

Low-carbon Living

Recently, my classmates and I participated in the activity of Low–carbon Living organized by the WWF. On the first day, we chose to go to school by bike or on foot rather than by bus or car. Before we left the classroom, we made sure the lights and the computer were switched off. In order to make full use of paper, we began to write on both sides. Besides, while shopping, we no longer used plastic bags but carried environmentally friendly ones.

I think what we did on that day was meaningful, which can help us to form a good habit. We should also call on the people around us to do something for low–carbon living. Only in this way will the earth be a good place to live on.

题目分析：这是一篇话题作文，这道题目有个特点就是要结合已给出的图片，所以首先必须看懂图，并且要用第一人称来写。写作时不能只是生硬的陈述图片内容，一定结合自己的做法谈谈自己的看法。需要注意不要偏离文章中心，写作时注意准确运用时态，上下文意思连贯，符合逻辑关系，一定要契合给出的开头，不能出现文章脱节问题。尽量使用自己熟悉的单词句式，同时也要注意使用高级词汇和高级句型使文章显得更有档次。同时注意题目要求字数。

点评：本文属于书信类作文，动笔前，一定要认真分析要点，理解要点要表达的含义，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。