Waves

海浪

新概念英语第4册第39课

新概念英语-课文

Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity. Rays from the sun excite and energize the atmosphere of the earth, awakening it to flow, to movement, to rhythm, to life. The wind then speaks the message of the sun to the sea and the sea transmits it on through waves - an ancient, elemental, powerful yet gentle message.

Of all nature's forces, gravity is the most familiar and the most mysterious. Gravity is the irresistible force of attraction that moves objects towards each other. In the case of the ocean and the atmosphere, gravity is the force that keeps the ocean's surface in its place, while allowing the atmosphere to move freely above it. Waves are the result of the interaction between the ocean and the atmosphere, as the wind blows across the surface of the water, creating ripples that grow into waves.

Waves can be described in terms of their height, length, and period. The height of a wave is the vertical distance between the crest (the highest point) and the trough (the lowest point). The length of a wave is the horizontal distance between two consecutive crests or troughs. The period of a wave is the time it takes for one complete cycle of the wave to occur, from crest to crest or trough to trough.

Waves can also be classified according to their source. Wind - generated waves are the most common type of waves, created by the wind blowing across the surface of the water. Tsunamis, on the other hand, are large - scale waves generated by underwater earthquakes, volcanic eruptions, or landslides. Seiches are standing waves that occur in enclosed or semi - enclosed bodies of water, such as lakes or bays.

The power of waves is truly astonishing. Waves can erode coastlines, build up beaches, and transport sediment across great distances. They can also generate electricity, as the movement of the waves can be harnessed to turn turbines. In addition, waves play an important role in the global climate system, as they help to distribute heat around the world.

In conclusion, waves are a fascinating and important part of nature. They are the result of the interaction between the ocean and the atmosphere, and they possess a wide range of characteristics and functions. Whether we are admiring their beauty from the shore, surfing their crests, or harnessing their power for electricity, waves are an ever - present reminder of the power and mystery of nature.

新概念英语-单词和短语

  • wave n.海浪;波浪
  • ocean n.海洋
  • atmosphere n.大气;大气层
  • infinity n.无限;无穷
  • ray n.光线;射线
  • energize v.使活跃;使充满活力
  • rhythm n.节奏;韵律
  • gravity n.重力;引力
  • irresistible adj.不可抗拒的;无法抵制的
  • attraction n.吸引;吸引力
  • crest n.波峰;山顶
  • trough n.波谷;低谷
  • period n.周期;时期
  • tsunami n.海啸
  • volcanic adj.火山的;由火山作用引起的
  • erupt v.爆发;喷发
  • seiche n.假潮;湖震
  • enclosed adj.被围住的;封闭的
  • semi - enclosed 半封闭的
  • harness v.利用;驾驭
  • turbine n.涡轮机;汽轮机

新概念英语-翻译

海浪是海洋和大气相互作用的产物,象征着无限的生命力。太阳光线刺激和激发地球的大气层,使它活跃起来,流动、运动、有节奏、有生命。然后,风把太阳的信息传递给海洋,海洋又通过海浪将其传播出去——这是一种古老、基本、强大而又温和的信息。

在自然界所有的力量中,引力是最常见也是最神秘的。引力是一种不可抗拒的吸引力,它使物体相互靠近。就海洋和大气而言,引力是使海洋表面保持在原位的力量,同时又允许大气在其上方自由移动。海浪是海洋和大气相互作用的结果,当风吹过水面时,会产生涟漪,涟漪逐渐发展成海浪。

海浪可以用高度、长度和周期来描述。海浪的高度是指波峰(最高点)和波谷(最低点)之间的垂直距离。海浪的长度是指两个连续波峰或波谷之间的水平距离。海浪的周期是指一个完整的海浪周期所需要的时间,从一个波峰到下一个波峰或者从一个波谷到下一个波谷。

海浪也可以根据其来源进行分类。风生浪是最常见的海浪类型,由风吹过水面而产生。另一方面,海啸是由海底地震、火山爆发或山体滑坡引发的大规模海浪。假潮是发生在封闭或半封闭水体(如湖泊或海湾)中的驻波。

海浪的力量确实惊人。海浪可以侵蚀海岸线、堆积海滩,并将沉积物搬运到很远的地方。它们还可以发电,因为海浪的运动可以被用来驱动涡轮机。此外,海浪在全球气候系统中也起着重要的作用,因为它们有助于将热量分布到世界各地。

总之,海浪是大自然中迷人而又重要的一部分。它们是海洋和大气相互作用的结果,具有各种各样的特征和功能。无论是我们在岸边欣赏它们的美丽,在浪尖上冲浪,还是利用它们的力量发电,海浪都时刻提醒着我们大自然的力量和神秘。

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