【解析】
本文需围绕主题完成发言稿写作，分三部分展开：1. 从健康、校园环境、环保意识培养三方面阐述建设绿色校园的原因；2. 结合校园实际，从节水节电、节约用纸、参与环保活动三个角度列举具体行动；3. 从榜样作用和校园环境变化两方面说明活动的积极影响。写作时注意用词简洁，语句衔接自然，符合词数要求。
【答案】
It helps us stay healthy and makes our school
a nicer place to study and live. Also, it teaches us to care about the environment.
To make it greener, I will take small but useful actions. First, I will save water and electricity
by turning off taps and lights when I leave the classroom. Second, I will use both sides of paper
and bring a reusable bottle instead of plastic ones. Third, I will join the school's tree-planting activity
and pick up litter on the playground.
These actions will have good influences. They can set a good example for my classmates.
More students will join us, and our campus will become cleaner and more beautiful.
【知识点】
英语发言稿写作、环保主题表达、语句逻辑衔接
【点评】
本文结构清晰，完整覆盖题目要求的所有要点，内容贴合校园实际场景，语言简洁地道，符合发言稿的语气要求，词数达标，能清晰传达个人的环保行动与理念。
【难度系数】
0.6
