Broadcast Dialect

  All dialects are equal. Each enables its speakers to communicate easily and effectively. Some dialects are perceived as "better," because they have more prestige. That, however, is a social judgment, not linguistic.
   Moreover, those who want a career in public speaking tend to use a prestige dialect, and one of these can be called the "broadcast dialect," the manner of speaking most readily understood by more people, and not easily identified with any regional or social group. Related to this job requirement is the ability to speak persuasively, even while reading.
  Reading aloud is a skill, and the secret of public speaking is the ability to read aloud without sounding like you're reading aloud.Broadcast Dialect
   Student emulate their teachers. Children learn to read from teachers who speak the same way. Result: Young people read aloud in the same manner their teachers  used -- a monotone.
   Perhaps teachers should take a required course in public speaking so they would not inflict monotonous speaking on future generations.