我们这里指的活动很广义。既可以指学校举行的活动，社会上的一些活动，也可以指自己的一些活动。比如，一次旅行。下面的这篇作文记录的就是一次旅行，去哈尔滨的旅行。

Last winter holiday, I went to Harbin with my mother.

It's very cold in winter. There is snow and ice everywhere and you are always in a white world. You must wear warm clothes. The most exciting thing is playing with snow. Skating is also very interesting there.

I will' always remember Harbin, for the snow, the ice and all the beautiful things. I love Harbin.

这些活动也可以是一些公益性的活动。比如，去敬老院看望孤寡老人，帮他们干活；去军队看望解放军叔叔；抑或是植树这样的活动。 

例：根据中文设置的情景和英文提示词语，写出语法正确，意思连贯的句子。所给的英文提示词语必须都用上。
上星期日，我们乘车去西山植树。一些学生种树，其他学生……
1. It, fine, last Sunday
2. we, go, West Hill, by bus
3. some, plant trees, other, carry water
4. because, we, work hard, tired, happy
5. all, know, stop… form, blow, and, city, make, beautiful
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参考范文　It was fine last Sunday. We went to West Hill by bus. Some students planted trees, others carried water. Because we worked hard, we were tired, but we felt happy. We all know trees can stop the wind from blowing the sand towards the city, and they can make the city beautiful.

对于这种描述一次活动的作文，考生要注意自己的思路要清晰明了，使人能够明白你在描述的事情。注意上下文的连贯。运用适当的连词和句子进行过渡。