特别广播英语第 164 课：Controlling Your Concentration 控制你的注意力-1

CONCENTRATION IS CENTERING YOUR ATTENTION 聚精会神就是集中你的注意力

Psychologically defined, concentration is the process of centering one's attention over a period of time. 按心理学定义，专心是一段时间内集中注意力的过程。

In practical application, however, concentration is not as simple to deal successfully with as the definition may imply. 然而，在实际应用中，成功地对待专心这个问题并不像定义中所说的那么简单。

For this reason, it is helpful to keep the following points in mind. 正因为这样，把以下几点记在心里是有帮助的。

Your attention span varies 你的注意力范围是变化的

Even with the greatest effort, our span of attention fluctuates. 即使付出最大努力，我们注意力的范围还是波动的。

You can demonstrate for yourself this fluctuation of attention. 你可以自己证明这种注意力的变化。

In a quiet room, place a watch so that it can just scarcely be heard. 在一个安静的房间里，把一块表放在刚刚能听到它声音的地方，

Listen carefully and notice how the ticking increases in apparent intensity, fades to a point where it cannot be heard, and then increases again. 仔细听，注意到嘀嗒声是如何明显地提高强度，继而，衰弱到听不到，然后又提高了。