Building a harmonious society（和谐社会） and a beautiful school is our duty（职责）. As middle school students, we should have a habit of（有...习惯） good behaviour. First, we should respect（尊重） our teachers and be polite to（对...有礼貌） others. Second, we should help each other and learn from（向...学习） each other, and be kind to（对...友好） our classmates. Third, we should obey（遵守） the traffic rules. We mustn't cross the road when the traffic lights are red. Fourth, we should protect the environment, and we can't drop（丢）litter everywhere. If every one of us says goodbye to impolite behaviour, we'll be excellent（极好的） students.
高分句型：
①As middle school students, we should have a habit of good behaviour.
作为中学生，我们应该养成良好的行为习惯。
（As “作为”；have a habit of ... “有...的习惯”）
②Second, we should help each other and learn from each other, and be kind to our classmates.
第二，我们应该互相帮助，互相学习，善待我们的同学。
（learn from ... “向...学习”；be kind to “对...友好”）
