每个人的生命只有一次，一定要珍爱自己的生命．该怎样安全自救？请根据以下提示，以How to Protect Ourselves为标题写一篇发言稿．

安全对每个人都很重要	交通：外出时遵守交通规则
	食品：吃健康食物，少吃垃圾食品
	活动：体育锻炼时，不要弄伤自己	不私自下河游泳
自救是重要的技能之一	交友需谨慎	远离危险之人
	遇到危险保持冷静	然后要及时报警或向老师、家长求助	尽可能避免受伤害 保证自己的安全

参考词汇：

要求：1．语言表达准确，短文连贯、通顺．

2．短文应包括所有内容，可适当发挥，不要逐句翻译．

3．词数80左右．文章开头部分已给出，不计人总词数．

参考词汇：safety，traffic rules， hurt oneself， without permission， self﹣protection， stay away from…， be careful， be in danger， keep calm， call…for help， be hurt．

Dear friends，

    Everyone has only one life， we should treasure our lives． But how can we protect ourselves？

    Here are some suggestions．

　 On the one hand ， we should realize the importantce of safety and know what to do ． First ， when we go out ， we must follow traffic rules ． If we walk ， we must use sidewalks and mustn't run a red light ； If we ride bikes ， we must ride along the right side and shouldn't carry others ； Second ， we should develop a healthy eating habit ． Eat regular meals every day and try not to eat junk food or eat less ． When food smells bad ， don't eat it ． Third ， when we play sports or games ， be careful not to hurt ourselves ． Fourth ， we mustn't swim in rivers without our parents or other adults around ．

On the other hand ， we should learn to protect ousrselves ， which is one of the most important living skills ． We must be careful when making friends especially online ． Some person online are not honest ． They are dangerous ， so we must keep away from them ． If we happen to have trouble ， we should keep calm and remember to ask our parents ， teachers or police for help so that we can protect ourselves from danger or being hurt ．　

    In a word， we should try our best to protect ourselves and value our lives．

   That's all． Thank you !