Lesson 40 Waves-英语听力

[00:01.54]Lesson 40
第40课 [00:03.21]Waves
海浪 [00:10.91]What false impression does an ocean wave convey to the observer?
海浪给人们留下了什么错误的印象？ [00:17.55]Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity.
海浪是大海和空气相斗的产物，一种象征永恒的生动体现。 [00:26.32]Rays from the sun excite and energize the atmosphere of the earth, awakening it to flow, to movement, to rhythm, to life.
太阳光刺激了地球的大气层，并赋予它能量；阳光使空气开始流动，产生节奏，获得生命。 [00:36.58]The wind then speaks the message of the sun to the sea
然后，风把太阳的信息带给了大海， [00:40.58]and the sea transmits it on through waves--an ancient, exquisite powerful message.
海洋用波浪的形式传递这个信息——一个源远流长、高雅而有力的信息。 [00:48.64]These ocean waves are among the earth's most complicated natural phenomena.
这些海浪属于地球上最复杂的自然现象。 [00:54.50]The basic features include a crest (the highest point of the wave),
他们的基本特征包括浪峰（波浪的最高点）、 [00:59.77]a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）、 [01:07.89]a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）、 [01:13.45]and a period (which is the time it takes awave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。 [01:19.92]Although an ocean wave give the impression of a wall of water moving in your direction,
虽然，海浪给人的印象是一堵由水组成的墙向你压来， [01:25.99]in actuality waves move through the water leaving the water about where it was.
而实际上，浪从水中移过，而水则留在原处。 [01:32.43]If the water was moving with the wave,
如果浪和水一起移动的话， [01:35.08]the ocean and everything on it would be racing in to the shore with obviously catastrophic results.
那么大海和海里的东西就会向岸边疾涌而来，带来灾难性的后果。 [01:42.76]An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit,
穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动， [01:51.32]drawing the particle first towards the advancing wave, then up into the wave,
先把微粒拉向前移的海浪，然后推上波浪， [01:57.22]then forward with it and then--as the wave leaves the particles behind--back to its starting point again.
随着波浪移动，然后——当波浪把微粒留在身后时——又回到了出发点。 [02:05.22]From both maturity to death, a wave is subject to the same laws as any other 'living' thing.
从成熟到消亡，波浪和其他任何“活动中”的东西一样，都受制于共同的法则。 [02:13.11]For a time it assumes a miraculous individuality that, in the end, is reabsorbed into the great ocean of life.
一度它获得非凡的个性，但最终又被重新融进生命的大洋。 [02:22.79]The undulating waves of the open sea are generated by three natural causes:
公海上起伏的波浪是由3个自然因素构成的： [02:28.83]wind, earth movements or tremors, and the gravitational pull of the moon and the sun.
风、地球的运动或震颤和月亮、太阳的引力。 [02:37.07]Once waves have been generated,
一旦波浪形成， [02:39.21]gravity is the force that drives them in a continual attempt to restore the ocean surface to a flat plain.
地心引力是持续不断企图使海面复原为平面的力量。