英语学习20170613

慢速 大声 夸张

小处： 卷舌,d/t ,s/z,w/v不可懈怠

课文原文(dictated on 20170612 ）

Lesson Fourteen Part one The Butterfly Effect

Why do small errors make it impossible to predict the weather system with a high degree of accuracy?

Beyond two or three days, the world's best weather forecasts are speculative, and beyond six or seven , they are worthless. The butterfly effect is the reason. For small pieces of weather and to a global forecaster, small can mean thunderstorms and blizzards, any prediction deteriorates rapidly. Errors and uncertainties multiply, cascading upwards through a chain of turbulent features, from dust devils and squalls up to continent-size eddies that only the satellites can see. The modern weather models work with a grid of points of the order of sixty-miles apart , and even so, some starting data had to be guessed, since ground stations and satellites can not see everywhere. But suppose the earth could be covered with sensors spaced one foot apart, rising at one foot intervals, all the way to the top of the atmosphere.

生词记录

练习记录

• speculative
• blizzard
• deteriorate
• cascading
• satellite

点评记录

• To 007
  • fourteen 注意重音
  • effect 听着像 effects

自我总结

• 句子好复杂，看都要看好半天。

时长累计

9.30