请你根据提供的材料，为中学生朋友写一篇题为"Always Be Careful"的短文。开头和结尾已给出，不计入总词数。
在家看完电视后，及时关掉电源；独自在家时，不要让陌生人进屋或邀请网友来家。
在学校不要在教室里互相追逐；在运动时，注意保护自己。
在街上遵守交通规则，比如骑车时不要听音乐；过马路时，注意红绿灯。
提示：独自在家 home alone
陌生人stranger
互相追逐 run after each other
交通信号灯 traffic lights
注意：
（1）内容必须包括上述的所有信息，可适当发挥。
（2）词数：80个左右。
Always Be Careful As a middle school student，you should try to stay away from danger as the problem of safety is becoming more and more serious．________
    If all these are kept in mind，you are sure to enjoy a much safer life．

【考点】说明文；日常生活．

【答案】Always Be Careful
   As a middle school student，you should try to stay away from danger as the problem of safety is becoming more and more serious.
  After watching TV，you should turn it off in time．If you're at home alone，don't open the door for strangers or invite friends that you have made online to your home．
  When you are at school，running after each other in the classroom can be dangerous．At the same time，you should remember to protect yourself while doing sports．Once you are in the street，traffic rules should be obeyed all the time．For example，never listen to music while riding a bike．Besides，always follow the traffic lights．
    If all these are kept in mind，you are sure to enjoy a much safer life．