每个人的生命只有一次，一定要珍爱生命。近年来，中学生意外伤害或者意外死亡事故频发，给许多家庭带来永久的伤痛。我们应如何有效地自我保护，免受伤害？假设你是李凯，请以"How to protect ourselves"为题，根据以下要点提示，向身边的朋友写一篇倡议短文。
要点提示：（1）外出时遵守交通规则，要在父母允许后才能和朋友外出；
（2）遇到危险时保持冷静，然后及时报警或向父母、老师求助；
（3）在学校里乐于助人，不和同学打架；
（4）保持健康的生活方式，每天锻炼一小时，少吃垃圾食物；
（5）不下河（湖）游泳，远离危险的地方。
要求：（1）字迹工整，书写规范，包含全部要点，可适当发挥；
（2）文中不得出现真实的学校、班级名称；
（3）80词左右，开头已给出，不计入总词数；
（4）请将书面表达内容写在答题卡上的相应位置。
How to protect ourselvesDear friends，
    Everyone has only one life.We should treasure our lives.As a middle school student，how to protect ourselves is very important._____________________

【考点】倡议书；安全与健康．

【答案】How to protect ourselvesDear friends，
    Everyone has only one life.We should treasure our lives.As a middle school student，how to protect ourselves is very important.Here are some suggestions.
    First，when we go out，we must follow traffic rules.We can't go out with friends until your parents give you permission.Second，in the face of danger，we should keep calm and remember to ask our parents，teachers or police for help in time.Third，we should be ready to help others at school and we mustn't fight with classmates.Fourth，we should develop a healthy eating habits.Exercise for half an hour every day and try not to eat junk food or eat less.Finally，we mustn't swim in rivers or lakes and keep away from dangerous places.
    In a word，we should try our best to protect ourselves and value our lives.