本篇书面表达是一篇话题作业，主要介绍在特殊教育学校的志愿活动。写作时，使用第一人称；时态使用一般过去时和一般现在时。注意要保证内容完整、布局合理、思路清晰、语句通顺、表达准确、书写规范、词数适当。
One possible version:
Dear Sandy, Last Saturday morning, our class went to the Special Education School to have a volunteer activity. When we arrived, we found the school was clean and tidy. We saw many students in the classrooms. Some were blind and some were deaf. Clearly, it’s difficult for them to speak, read or write. But they were following their teachers carefully.
We joined them in playing games and learning paper cutting. We had a wonderful time. Before leaving, we gave them some books, snacks and toys. They loved them very much.
Through these activities, we saw the disabled children could put their heart and soul into learning. We have no reason to waste time in playing. We should study hard to be useful to the society.
Do you have anything special to tell me? I’m looking forward to your reply.
Yours,

Dear Sandy,
Last Saturday morning, our class went to the Special Education School to have a volunteer activity. When we arrived, we found the school was clean and tidy. We saw many students in the classrooms. Some were blind and some were deaf. Clearly, it’s difficult for them to speak, read or write. But they were following their teachers carefully.
We joined them in playing games and learning paper cutting. We had a wonderful time. Before leaving, we gave them some books, snacks and toys. They loved them very much.
Through these activities, we saw the disabled children could put their heart and soul into learning. We have no reason to waste time in playing. We should study hard to be useful to the society.
Do you have anything special to tell me? I’m looking forward to your reply.
Yours,
Li Hua

这是一篇书信类的志愿活动主题书面表达，符合八年级的写作要求：① 全程使用第一人称，符合题干的人称要求；② 时态运用准确，描述上周六的志愿活动经历使用一般过去时，抒发活动后的感悟、当下的思考使用一般现在时，符合题干的时态要求；③ 内容布局合理：开篇点明出行时间与活动目的，接着描写在特殊教育学校的所见、和孩子们互动的过程、临别赠礼的细节，最后阐述活动带来的成长感悟，收尾向收信人发出互动邀约，叙事流畅、逻辑清晰，语句通顺，词数适当。

实时练习
书面表达
在日常学习和生活中，我们经常需要与人合作（cooperate）。假设你是李华，请你就如何成为一名优秀的合作伙伴写一篇英语演讲稿。内容包括：

Dear fellow students,
Today my topic is how to be an excellent partner when we cooperate with others.
As we all know, cooperation is quite important in our daily study and life. Nobody can finish all the difficult tasks completely on our own. To be a good partner, first we should learn to be a good listener. We need to listen to others' ideas carefully, and never interrupt them when they are sharing thoughts. Second, we should communicate with our team members actively. If we have different opinions, we can show our ideas politely instead of arguing with others. Third, we must try our best to finish the work that the team assigns to us. We can't leave all the work to other partners. Last, we need to be understanding. Everyone has their own shortcomings, so we can be more tolerant when others make small mistakes.
If we follow these suggestions, we will get along well with our partners and make progress together.
Thanks for your listening!

这是一篇演讲稿类的英语书面表达，写作要求如下：
1. 文体属性：属于应用文中的演讲稿，开篇需要设置问候语，结尾搭配致谢语，语气要贴合面向同学演讲的场景，自然真诚；
2. 时态人称：以一般现在时为主要时态，人称使用第一人称和第二人称即可，符合表达习惯；
3. 内容逻辑：首先开篇点明合作在日常学习生活中的重要性，引出本次演讲的主题；其次分点阐述成为优秀合作伙伴的实用做法，比如耐心倾听同伴的想法、礼貌主动地沟通观点、认真完成团队分配给自己的任务、包容他人的小不足等符合学生生活实际的内容；最后总结合作的价值，发出合理呼吁。写作时选用八年级已掌握的词汇和句式，保证行文连贯，避免超纲表达。