跟读练习: How does a Light Bulb Glow? + more videos | #aumsum #kids #science #education #children - 通过YouTube学习英语口语
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It's AumSum Time.
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How does a Light Bulb Glow?
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Simple. It glows because of AumSum's brightness.
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Oh AumSum. To buy AumSum merchandise visit AumSum.com.
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A bulb glows because of the Principle of Conversion of Energy.
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Which states that energy is converted from one form to another.
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In this case electrical energy is converted to heat plus light.
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Let us see how this happens.
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When we switch on the bulb, electricity starts flowing.
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This electricity or the flow of electrons is hindered by the filament of the bulb.
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The filament is usually made of tungsten as it has a high melting point.
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A long and thin filament wire offers higher resistance to the flow of electrons.
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Now this hindrance to the flow of electrons leads to the creation of friction.
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Which causes the filament to heat up and start glowing.
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So this is how a light bulb glows.
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关于本课
您正在使用跟读技巧通过视频"How does a Light Bulb Glow? + more videos | #aumsum #kids #science #education #children"练习英语口语和发音。
每天练习15到30分钟，将显著提高您的英语流利度和发音准确度。
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。