2017英语专业四级听力听写50篇(20)

2016-05-25 09:34:00来源:网络

  2017英语专业四级听力听写50篇(20)

  2016年英语专业四级考试已于4月23日考完,对于这次2016专四题型改革,考生深感考试难度增加。新东方在线专四频道奉劝考生们不要灰心,从现在开始通过每天的专四听力练习坚持下去,相信你们会顺利通过考试,下面是为大家整理的2017英语专业四级听力听写50篇。

  Waves

  How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way —in waves!

  Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light and sound travel through different kinds of matter. For example, light waves cannot move through walls, but sound waves can. That is why you can hear people talking in another room even though you cannot see hem. The energy of some waves is destructive. An arthquake produces seismic waves.

  Catch a wave. Ask a friend to stand a few feet away from you. Stretch a spring between you. Shake the spring to transfer energy to it. What happens? The spring bounces up and down in waves. When the waves reach your friend, they bounce back to you!

  Light waves travel 300,000 kilometers (186, 000 miles) per second! They can also travel through a vacuum. That is why light from the sun and distant stars can travel through space to the earth! (175 words)

  Useful Words and Expressions:

  matter n.物质;内容;事情

  reading matter阅读材料

  This is a matter of no account.这是一件无关紧要的事。

  I have an urgent matter to atend to.我有一件急事要办。

  I have an important matter to talk to you about.我有件重要的事要和你谈谈。

  destructive adj.破坏(性)的

  seismic adj.[地]地震的

  seismic waves震波

  bounce v.(使)反跳,弹起

  bounce back弹回

  vacuum n.真空立

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