跟读练习: Brain Imaging Comes to Children in Poor Countries - 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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Brain imaging was once thought to be too costly and difficult for widespread use in the developing world.
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But the technology soon may be available in poor countries.
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Brain imaging creates pictures of brain activity.
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It uses infrared light similar to the light produced by a television remote control.
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Brain imaging can identify the first signs of learning and development delays in newborns and young children.
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Experts know that malnutrition or a lack of helpful food can be linked to such problems.
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The technology has a long name,
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Functional Near Infrared Spectroscopy, or FNIRS.
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It uses special light to provide images of the brain.
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Experts say FNIRS is safer than other imaging methods.
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And FNIRS is easy to transport.
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The equipment can be loaded into a vehicle and driven from village to village.
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Claire Elwill is a professor of medical physics at University College London.
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She helped develop the technology.
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She says the device measures oxygen in the blood to learn how baby's brains are developing.
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She says it can show how much information the brain is processing and where.
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Ms. Elwell led an FNIRS study in rural Gambia involving babies between 4 and 8 months old.
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They were examined three times over 15 months.
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Researchers noted the baby's reactions to different images and sounds.
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Then, the results were compared to those of British children.
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Ms. Elwell says the research provided more data on the links between malnutrition and brain development.
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She says the goal is to identify babies who need better diets to avoid harm to brain development.
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For VOA Learning English, I'm Laurel Bowman.
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为什么要用这个视频练习口语？
在学习英语的过程中，口语表达是至关重要的。通过观看这段视频并进行 雅思口语练习，学习者可以有效提高自己的发音、语调以及口语流畅性。视频中提到的脑成像技术，涉及了许多与儿童成长和发展相关的话题，这为学习者提供了丰富的语境来练习口语。通过模仿视频中的表达，学习者不仅可以增强与他人交流的自信心，还能够掌握相关领域的专业词汇，提升自己的表达能力。利用 英语影子跟读 技巧，模仿发言者的语气和节奏，将极大地帮助您在实际沟通中更自如地表达。
语法与表达的语境分析
在视频中，演讲者使用了一些值得注意的语法结构和表达方式，学习者可以通过这些例子提高自己的语言能力：
- “Brain imaging was once thought to be too costly” - 这个句子使用了被动语态，适合在描述过去的观点时使用。
- “The technology has a long name, Functional Near Infrared Spectroscopy” - 这里通过简单的句式介绍复杂的名词，适合学习者在介绍新概念时参考。
- “Experts say FNIRS is safer than other imaging methods” - 使用“say”作为引述动词是常见的口语表达方式，学习者可以模仿这种结构来引用他人的观点。
通过这样的具体例子，学习者在进行 英语口语练习 时，能够更好地理解和运用不同的语法结构，从而提高他们的语言能力。
常见的发音障碍
在视频中，有一些词汇的发音和重音可能对学习者构成挑战：
- “malnutrition” - 此词在发音时要注意音节的划分，常见的发音错误是重音位置不正确。
- “spectroscopy” - 包含多个辅音和音节，学习者可能在快速发音时容易出现遗漏或混淆。
- “Gambia” - 地名常常难以准确发音，因此在跟读时特别需要注意其音节的清晰度。
通过不断的模仿和练习，学习者可以克服这些发音障碍。在进行 英语影子跟读 或 shadow speech 时，特别留意这些难点，可以有效提升最终的口语表达水平。
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。