跟读练习: Level J.Tornadoes - 通过视频学习英语口语

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Tornadoes, written by Keith and Sarah Cordermarten.
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Introduction What can lift roofs from buildings and sweep houses into the air?
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Tornadoes can.
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Tornadoes come in many sizes.
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Some tornadoes are only a few feet, one meter across.
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Others are more than a mile, two kilometers wide.
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Some tornadoes touch down for a short time.
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Others travel for hundreds of miles.
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How Tornadoes Form Why do tornadoes happen?
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Scientists are not sure.
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Tornadoes come from giant thunderstorms called supercells.
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A supercell happens when warm,
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moist air rises to mix with cold, dry air.
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The mixing of cold and warm air causes the air to spin.
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The spinning wind turns into a cloud in a funnel shape.
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As the cloud turns, the wind becomes stronger.
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When the funnel cloud touches the ground, it is a tornado.
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Measuring tornadoes.
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Scientists have a way to measure the strength of tornadoes.
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They look at the harm caused by a tornado.
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They use the amount of harm to estimate the wind speed.
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They use a special scale called the EF scale.
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The EF scale measures the strength of the tornado.
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Where tornadoes form.
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Tornadoes may be hard to measure,
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but scientists have a good idea where they'll strike.
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It's true that a tornado can hit anywhere in the world at any time.
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Most tornadoes happen in the central part of the United States.
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This area is called Tornado Alley.
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More than 1,000 tornadoes strike Tornado Alley each year.
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Tornado safety.
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There is no way to be sure that a tornado will strike.
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The National Weather Service, NWS,
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tries to help people stay safe during tornadoes.
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If they put out a tornado watch, a tornado might strike.
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If they put out a tornado warning, a tornado has been spotted.
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If there is a tornado warning, it's important to get to a safe place.
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Go indoors.
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The safest place is a basement.
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If you can't get to a basement, go into a closet or bathroom.
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Stay away from windows.
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The spinning air in a tornado makes things fly around.
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This This can be dangerous.
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It's always important to protect your head.
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You should get close to the ground.
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Go under a desk or table.
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You can even lie down in a bathtub.
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If you are in a tall building, go to the stairs.
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If you are in a car, safely find lower ground and lie down.
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Otherwise, wear your seat belt and lean forward.
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If you are outside, lie down on the ground.
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It isn't safe to stay inside a mobile home in a tornado.
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It is better to go into a car or outside.
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Famous Tornadoes A tornado in 1925 traveled more than 300 miles,
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483 kilometers, through Missouri, Illinois, and Indiana.
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It killed 695 people, the highest number of people killed by a tornado in U.S history.
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In March 2012, a giant tornado swept through Henryville, Indiana.
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It was huge, 150 yards,
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138 meters wide, and traveled very far, 52 miles, 84 kilometers.
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Conclusion Tornadoes are scary examples of the power of nature.
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People still have many questions about tornadoes.
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What causes a tornado?
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What is it really like inside a tornado?
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Maybe we will find out one day.

本课概述

在这一节课中，您将学习与龙卷风相关的英语词汇和短语。通过观看关于龙卷风的YouTube视频，您将获得相关知识，同时使用shadowspeak的方法来提高您的英语口语练习。此外，您将了解如何通过影子跟读来模拟视频中的对话和语调，进一步提高您的英语发音。

关键词汇与短语

  • 龙卷风 (tornado) - 一种具有强烈旋转气流的自然现象。
  • 超级细胞 (supercell) - 一种强大的雷暴系统，是龙卷风形成的主要原因。
  • EF尺度 (EF scale) - 用于测量龙卷风强度的特殊尺度。
  • 预警 (warning) - 表示龙卷风已被发现，需采取安全措施。
  • 避难所 (shelter) - 在龙卷风来临时寻找的安全地点。
  • 地下室 (basement) - 在避难时最安全的地方。
  • 窗户 (windows) - 在龙卷风中需避免靠近的地方，因其可能被强风破坏。
  • 坐椅带 (seat belt) - 在车中时确保安全的重要装备。

练习技巧

在观看关于龙卷风的YouTube视频时，shadow speak是一种有效的口语实践方法。首先，调整视频的播放速度，使其适合您的跟读能力。尝试将速率设置为0.75倍，先听清楚每一句话的发音和语调。接着，暂停视频并重复每一句话，您可以使用看YouTube学英语来观察主持人的口音和语速。

在跟读过程中，注意语音的抑扬顿挫，以及语句的停顿。此外，尽量模仿视频中的情感语调，比如在讲述龙卷风形成的过程时，使用稍微紧张的语调。您也可以试着在练习中加入肢体语言，这样不仅有助于记忆，也使发音更加自然。

确保在每次练习之前先回顾您所学的关键词汇，并在跟读时将这些单词融入句子中。通过这样的方式，您不仅能提高英语发音，还能在实际对话中更加自如地使用这些新词汇。提高英语发音，并不只是在课堂上，而是通过这种影院般的学习体验来增强记忆和口语能力。

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。