跟读练习: Can't Smell Anything? | What if You Lost Your Sense of Smell? | What is Anosmia? | Dr. Binocs Show - 通过视频学习英语口语
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Eww!
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What is that smell?
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It's awful!
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Oops!
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It ate too much cheese!
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Ugh!
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I wish I could lose my sense of smell just for a while!
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Then what?
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Hmm, you know, that's actually a great question, little kitty.
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So, let's dive into that mystery to answer, what if you lost your sense of smell?
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Zoom in!
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Imagine waking up one day and realizing the scent of pancakes, the earthly aroma of rain,
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or even the stink of gym socks is completely gone.
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That's life with anosmia, a condition where you lose your sense of smell.
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But before exploring this scentless world, let's first understand how smelling works.
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You see, everything around us releases tiny molecules into the air.
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These molecules eventually enter our nostrils,
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where the nasal cavity works to filter out dust and other particles.
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At the very back of your nose lies the olfactory epithelium,
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a small but crucial batch of tissue, packed with specialized neurons called olfactory receptor cells,
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which act like scent detectives.
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When an odor molecule reaches this area,
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it dissolves in a layer of mucus and binds to the receptor cells that get activated.
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This causes them to send electrical signals through the olfactory nerve via the olfactory bulb and along the olfactory tract.
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These signals are then processed in different regions of your brain including the amygdala,
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thalamus and orbitofrontal cortex where they are interpreted as specific smell.
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This direct connection explains why smells can instantly trigger memories,
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emotions or even your fight-or-flight response.
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Now you might think of smell as just a bonus sense.
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Nice to have but not essential.
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In reality it's critical to many aspects of life.
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For starters, smell works hand in hand and with taste to create the flavors you enjoy.
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Without it, your favorite foods would taste flat and uninteresting, like chewing on flavorless cardboard.
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Beyond taste, smell alerts you to dangers like smoke from a fire, a gas leak or spoiled food.
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So, without it, you'd need to rely on alarms, expiration dates or sheer luck to avoid trouble.
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Speaking of which, for various reasons,
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this crucial sense can become impaired or lost altogether in a condition called anosmia.
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Yes, anosmia can be caused by something as simple as a cold or allergies,
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which block scent molecules from reaching your olfactory neurons.
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Most serious causes include brain injuries,
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neurological conditions like Alzheimer's or Parkinson's disease or congenital anosmia,
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being born without a sense of smell.
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Aging, smoking and certain medications can also reduce your ability to detect odors.
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When you lose this vital sense, it can make everyday life more difficult.
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You'd miss out on small joys like the smell of fresh flowers or your favorite meal.
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Worse, you might not notice spoiled food or milk, increasing the risk of food poisoning.
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You might also fail to detect dangers like smoke in your home or workplace Or exposure to gas or harmful chemicals.
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The good news, most cases of anosmia are temporary.
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Treating the underlying cause such as clearing a sinus infection often restores your ability to smell.
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However, for some the loss can be permanent.
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So, make sure to protect your sense of smell by avoiding smoking
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and maintaining overall health to lower the risk of colds or infections.
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Next time you can catch a whiff of rain,
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cookies or pine, take a moment to appreciate this incredible system.
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Trivia Time!
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Did you know about thousand people in the United States have congenital anosmia?
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Also a dog's olfactory epithelium is 20 times larger than that of a human.
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To know more check out our nostalgic video on dogs.
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Sketching time!
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Today's sketch of the day goes to Mira Kulbe.
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Hope you discovered something crucial today.
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Until next time, it's me, Dr. Binox, Zooming out!
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Never mind!
关于本课
在本课中，学生将通过观看视频学习与嗅觉相关的英语单词和短语，并了解嗅觉丧失的医疗知识。通过特定场景的练习，提升英语口语的流畅度和自信心。同时，掌握如何在日常生活中表达对气味的感受，进而提高英语发音。
关键词汇与短语
- 嗅觉 (olfaction) - 通过鼻子感知气味的能力。
- 嗅觉上皮 (olfactory epithelium) - 位于鼻腔后部的重要组织，含有嗅觉受体细胞。
- 氣味 (odor) - 可以被嗅觉检测到的气体分子。
- 失嗅症 (anosmia) - 失去嗅觉的医学状况。
- 神经元 (neurons) - 传递信号的细胞，参与嗅觉的功能。
- 调味 (flavoring) - 嗅觉和味觉协同作用的结果。
- 过敏 (allergies) - 可能导致嗅觉受损的健康状况。
- 嗅觉丧失 (loss of smell) - 缺乏嗅觉的状态。
练习技巧
在进行英语口语练习时，使用shadowing 技巧可以帮助提升发音和流利度。观看视频时，注意以下几点：
- 语速：视频中的语速适中，适合练习shadow speech。在每句跟读时，尽量模拟视频中的语调和节奏。
- 音调：关注 Dr. Binocs 的语音语调，他对情绪的表达非常明显，可以帮助你提高表达能力。
- 互动：模仿视频中的问题和反应，尝试回答问题以增强互动性，这是提高英语口语练习的有效方式。
- 反复观看：在YouTube上多次观看视频，逐步提高理解和口语能力。多次观看可以帮助你更好地掌握新词汇和短语。
- 情境模拟： 可以和朋友一起讨论视频主题，使用刚学到的词汇，模拟嗅觉的体验，强化记忆。
通过这些方法，您将不仅能提升英语发音，还可以更好地掌握日常交流中关于嗅觉的相关内容，帮助您在生活中更自信地使用英语。
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。