跟读练习: New Supercomputers Aid Weather Forecasts - 通过YouTube学习英语口语
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From VOA Learning English, this is the Technology Report.
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From VOA Learning English, this is the Technology Report.
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Many Americans start to closely follow weather reports in the early fall,
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during the Atlantic hurricane season.
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Predicting the strength and movement of these huge storm systems is of crucial importance.
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Thanks to new supercomputers, meteorologists for the National Oceanic and Atmospheric Administration,
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or NOAA, are getting better at predicting the weather as far as six days out.
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Hurricane Sandy hit the East Coast last October and caused deaths and widespread damage.
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It was one of the costliest storms in United States history.
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At the time, some people blamed meteorologists for not correctly predicting the path of the storm.
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But weather forecasting is extremely difficult, says Ben Kiger.
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He is the director of central operations at NOAA's National Centers for Environmental Prediction in College Park, Maryland.
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Ben Kiger says oceans are another issue because they closely interact with the atmosphere and have a huge effect on storms.
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NOAA has spent about $20 million on two new supercomputers in an effort to improve the dependability of its forecasts.
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It takes a huge amount of computational power to examine data from weather satellites,
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ground stations, and other sources.
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It then takes a lot of power to predict temperature,
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air pressure, humidity, and and wind speed.
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But human brains and experience are still very important to the process.
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Meteorologists at the National Centers for Environmental Prediction scan the same data that the supercomputers get before issuing a weather report.
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NOAA issues worldwide forecasts every six hours,
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every day of the year.
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For VOA Learning English, I'm Alex Villareal.
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本课概述
在本课中，您将学习与天气预报相关的词汇和短语。通过观看有关超级计算机如何改善天气预测的YouTube视频，您将能够在自然对话中更流利地使用这些术语。特别是，当我们讨论气象学和自然灾害时，您将能够提升您的英语听力和口语表达能力。通过这种方式，您将能更好地理解视频的内容，并能够自信地使用新学的词汇。利用“看YouTube学英语”这一方法，您将发现一步步提升语言能力的乐趣。
关键词汇与短语
- 预测 (predict) - 估计未来事件的过程或结果。
- 风速 (wind speed) - 表示风的速度，通常用于天气报告中。
- 气压 (air pressure) - 大气对地面施加的压力，影响天气变化。
- 湿度 (humidity) - 空气中水蒸气的含量，对天气情况有重要影响。
- 超级计算机 (supercomputer) - 用于处理复杂计算任务的强大计算机。
- 气象学家 (meteorologist) - 研究气象现象并做出天气预测的专家。
- 飓风 (hurricane) - 强烈的热带风暴，伴随有强风和降雨。
- 海洋 (ocean) - 对天气和气候有重大影响的大规模水体。
练习技巧
进行“shadow speech”练习时，您可以关注视频的语速和语调。建议您先听一段，再跟着重复，尽量模仿讲述者的发音和语感。您可以选择逐句模仿，这种方式称为“shadowspeak”。为进一步提升自己的口语能力，建议在安静的环境中练习，以便集中注意力。在观看视频时，留意讲述者的语调变化和语速，尝试在不同的语境中使用新学的词汇。定期回顾和重复这些新词汇，可以帮助您巩固记忆并在日常对话中自信地使用它们。如果您在寻找有效的“shadowing site”，可以选择那些具有丰富视频内容的平台，进行有效的英语学习。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。