英语听力：探索发现 科学新发现：我们的大气层-13
时间：2014-11-05 08:34:22
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（单词翻译）
The planet's rotation1 twists the air as it flows, helping2 form the hurricanes that lash3 the coasts. As moist air wells upwards4, clouds become electrically charged and send lightning bolts crushing down to the earth, superheating the air to eighteen thousand degrees. And as the air cools, water wapour condenses into clouds and rain. This water evaporates from the world's oceans. At any moment one thousandth of percent of world's water is being carried in the air, but that tiny percentage adds up to almost three thousand cubic miles of liquid. If the air didn't carry water, the land would be bone dry.
Storms do a really important job for the atmosphere. They help reduce the difference in temperature between the poles and equators. And in the process they actually create the rain and snow that we depend on.
One of the most powerful weather systems is a newly discovered set of water channels running through the air. Rhoa's current research focuses on the mysterious rivers in the sky.
One of the
phenomena5 that really influence us is where the water is available for us. Are these regions where water vapour is transported and focused? We have come to recognize that phenomena as an
atmospheric6 river.
Atmospheric rivers are narrow channels of hurricane force winds that can stretch for thousands of miles.
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