关于保护环境的英语作文开头和结尾，可参考以下要点：

一、开头建议

引入现状

以当前环境问题为切入点，如空气污染、资源枯竭等，例如："In recent years, with the rapid development of industry and urbanization, environmental pollution has become a pressing issue..."

提出呼吁

明确表达保护环境的紧迫性，如："It is everyone's responsibility to protect our planet for the sake of future generations..."

使用修辞手法

可结合比喻、排比等增强感染力，例如："Our Earth is like a fragile house, and we must take immediate action to repair its damage..."

二、结尾建议

总结行动方向

强调具体措施，如倡导绿色出行、减少浪费等，例如："Let's start by choosing public transportation, recycling waste, and conserving water..."

升华主题

将个人行动与全球责任联系，如："Every small step we take contributes to a larger movement towards sustainability..."

呼吁持续关注

以展望未来结束，例如："Together, we can create a greener world where nature and humanity coexist harmoniously..."

示例结构

开头：

描述空气污染现状，引用权威数据增强说服力

主体：提出骑自行车、使用公共交通等具体建议

结尾：总结行动意义，呼吁全民参与