跟读练习: What is ACID RAIN? | Acid Rain | Dr Binocs Show | Kids Learning Video | Peekaboo Kidz - 通过视频学习英语口语
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The End The End The End The End The End The End Whoa!
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Eow!
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Do you see that friends?
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It's raining acid out there!
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Well, I know what you guys must be thinking.
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Is it really possible?
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Is it really possible?
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Or am I just cooking a fictional story?
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Well, Acid Rain is a real thing and can harm our environment.
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So, in today's episode, let us learn more about this haunting aspect of nature...
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...and explore a vital topic we call Acid Rain.
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Zoom in!
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So, what is this phenomenon with a terrifying name called the Acid Rain?
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Well, we all know that rain clouds are formed of pure water,
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but sometimes gases such as Sulphur Dioxide and Nitrogen Oxide chemically reacts with the water and oxygen in the atmosphere
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..and fall back to earth in the form of acid rain.
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A shower which we don't want to take.
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The type of acid rain that contains water is called wet deposition.
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Whereas acid rain formed with dust or gases is called dry deposition.
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But how do these gases reach the atmosphere in the first place?
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Well, there are two main sources for it.
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First is the natural source like rotting vegetation and erupting volcanoes release some chemicals that can cause acid rain.
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But most acid rain is a product of human activities like burning of fossil fuels,
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...smoke coming from vehicles and chemicals released from the factories.
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And now comes the most crucial question and that is, what causes the rain to turn acidic?
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Well, it's important to understand that normal rain is already a little acidic.
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Yes, my friends, while falling towards the ground, the rain dissolves carbon dioxide from the atmosphere...
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...that forms carbonic acid with a pH of 6.
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But when we burn fossil fuels that release gases such as Sulphur Dioxide and Nitrogen Oxide...
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...a much stronger acid gets into our rain to form acid rain with pH 3...
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..which increases the acidity of rain significantly high.
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Still confused?
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Okay, let's try to understand it with an example.
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You see, plants intake some Sulphur to grow..
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..that they obtain from Potassium Sulphate already present in the soil.
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The Sulphate is consumed through the roots as the Sulphur atoms bond with..
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...with Carbon atoms in the leaves, Protein.
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And, after millions of years, when these plants eventually die and turn into gold,
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these Sulphur atoms and Carbon atoms remain intact.
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And when we burn the fossils of these dead plants, the Sulphur and Carbon atoms mix with the Oxygen in the air
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and are released into the atmosphere as Sulphur Dioxide and Carbon Dioxide.
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And when the sunlight hits these gases, a chemical reaction takes place...
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...where the Sulphur Dioxide reacts with more Oxygen to form Sulphur Trioxide...
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...that eventually mixes with the rainwater to create Sulphuric Acid.
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Similarly, when our vehicles release Nitrogen Oxide into the atmosphere...
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They react with more oxygen and mixes with rain water to form Nitric Acid.
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And now we know how the rain turns acidic.
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So, let us now learn its effect on our environment.
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Acid rain has many ecological effects, primarily on lakes, rivers and other aquatic environments.
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Acid rain makes such waters more acidic, which results in more Aluminum absorption from the soil,
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which is carried into lakes and rivers, making the water toxic for the aquatic animals to survive.
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Not only that, acid rains harm forests as well,
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by damaging leaves and robbing the soil of essential nutrients, and making it difficult for trees to consume water.
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So, now the main concern is, what can we do to stop acid rains?
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Well, the one easy step we can take is just reducing the burning of fossil fuels.
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That will decrease the number of pollutants responsible for acid rains.
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And the next thing is to share this video with your friends and family to spread awareness about it.
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As we now feature...
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Trivia Time!
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Did you know Acid Rain damages buildings, monuments and statues?
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Especially those made of limestone and marble as they contain large amounts of Calcium Carbonates.
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The calcium compounds react with the acid in the rain, damaging them.
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Yes, exhaust gases from the Mathura refinery greatly affected the Taj Mahal at Agra...
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..and changed its colour to a great extent.
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Hope you enjoyed today's episode.
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Until next time, it's me, Dr. Binox, Zooming out!
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Ah, what a beautiful day!
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Ah, never mind!
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Thank you.
关于本课
在本课中，您将学习与“酸雨”相关的重要概念和词汇。通过观看视频的内容并进行影子跟读，您将深入理解这一环境现象的成因以及其对自然的影响。通过“影子跟读”（shadowspeak）的方式，您将提高英语发音并更流利地表达这些科学观念。
关键词汇与短语
- 酸雨 (Acid Rain)
- 硫氧化物 (Sulphur Dioxide)
- 氮氧化物 (Nitrogen Oxide)
- 化学反应 (Chemical Reaction)
- 环境影响 (Environmental Effects)
- 水体酸化 (Acidification of Water)
- 湿沉积 (Wet Deposition)
- 干沉积 (Dry Deposition)
练习技巧
在观看视频时，请保持放松，跟随音频的节奏，尽量模仿说话者的语音语调。该视频的语速适中，并且内容富有趣味性，非常适合进行英语影子跟读（shadowspeak）。您可以重复每个句子，尤其是那些与酸雨成因相关的科学表达，以加深理解和记忆。在跟读过程中，注意说话者对重音和节奏的处理，这将有助于提高您的英语发音和口语流利度。定期观看这类视频，结合“看YouTube学英语”的方法，您将有效提高您的发音技巧，并了解重要的科学知识。
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。