1.Introduction Needless to say,warning signs are familiar to modern readers as they are deeply embedded in our daily lives.Although we are bombarded daily with the messages on this kind of sign,we hardly perceive them on a conscious level.Furthermore,conventional wisdom has it that warning signs could possibly be of little necessity as an object of study.Contrary to what has often been claimed,this article will examine this particular 1.Introduction Needless to say, warning signs are familiar to modern readers as they are deeply embedded in our daily lives.Although we are bombarded daily with the messages on this kind of sign, we hardly perceive them on a conscious level. wisdom has it that warning signs could possibly be of little necessity as an object of study. Contrary to what has often been claimed, this article will examine this particular