跟读练习: How Sleep Affects Your Brain - 通过视频学习英语口语
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Sleep is essential.
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You can't function or survive without it.
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While your body is resting, your brain is a flurry of activity.
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It organizes the day's events and files them into storage so you can easily retrieve them later.
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It also catches up on housekeeping, clearing away wastes that build up during the day.
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The more deeply you sleep, the more effective your brain is at cleaning itself.
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We typically need 7 to 9 hours of sleep for maximum brain performance, but many of us don't get it.
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Too little sleep negatively affects your ability to remember and concentrate.
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It can also make you moodier and more irritable, and increase the risk of anxiety and depression.
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In addition, going too long without sleep has similar effects to being drunk,
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impairing judgment and performance, and increasing the risk of accidents and injuries.
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Over time, a lack of adequate sleep may also increase the risk of dementia.
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To ensure you're getting enough sleep, practice good sleep hygiene.
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Put away electronic devices an hour before bedtime and do something relaxing.
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Go to bed at the same time each night and wake up at the same time each morning.
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Avoid stimulants like caffeine in the late afternoon or evening and alcohol and heavy meals before bedtime.
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Keep your bedroom quiet, cool, and dark.
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And try to get in at least 30 minutes of moderately intense exercise on most days, which can improve both sleep and your overall health.
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The better you sleep at night, the better your brain will function, and the better you'll feel.
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本课的词汇与口语要点
这节 B1 级别的口语课以视频“How Sleep Affects Your Brain”为素材。 视频中反复出现的词有：sleep, brain, risk。 这段视频共有 19 个句子、258 个单词可供跟读。 讲话部分时长为 1:43。 说话人语速自然，每分钟约 151 个词，接近日常对话。 86% 的单词属于英语最常用的 3,000 词，其余的词建议在练习前先学一下。
视频中的重点词汇
视频中最难的 13 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| bedtime 名词 | /ˈbɛdtaɪm/ | 就寢時間 /就寝时间 |
| housekeeping 名词 | 家政, 家事 | |
| stimulant 名词 | /ˈstɪmjʊlənt/ | 興奮劑 /兴奋剂 |
| moderately 副词 | 温和地 | |
| caffeine 名词 | /ˈkæfiːn/ | 咖啡因, 咖啡鹼 /咖啡碱 |
| retrieve 动词 | /ɹɪˈtɹiːv/ | 重拾 |
| dementia 名词 | /dɪˈmɛnʃə/ | 癡呆 /痴呆, 失智症 |
| hygiene 名词 | /ˈhaɪˌd͡ʒiːn/ | 衛生學 /卫生学 |
| organize 动词 | /ˈɔɹɡənaɪz/ | 組織 /组织 |
| adequate 形容词 | /ˈæd.ə.kwɪt/ | 適當 /适当, 足夠 /足够 |
| concentrate 动词 | /ˈkɑn.sən.tɹeɪt/ | 集中 |
| judgment 名词 | /ˈd͡ʒʌd͡ʒ.mənt/ | 判斷 /判断 |
| relax 动词 | /ɹɪˈlæks/ | 鬆開 /松开, 放鬆 /放松 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| put away 动词 | 收拾 |
视频中的语法
说话人最常用的结构，并附上视频中的原话：
| 结构 | 视频中的用法 |
|---|---|
| 定语从句 who / which + 从句 — 补充说明人或事物 | days, which can |
| 用 “might / may” 表可能 might/may + 动词 — 有可能但不确定的事 | may also increase |
| 现在进行时 am/is/are + -ing — 此刻或近期正在发生的事 | is resting · you're getting |
| “will” 表将来 will + 动词 — 决定、承诺或预测 | will function |
需要注意的发音
说话人用了 4 次缩略和弱读形式，例如 can't, don't, you'll。请按听到的简短形式来说。
中文母语者容易读错的音：
- 词尾辅音 — 要读清楚，后面不要加元音: stimulant /ˈstɪmjʊlənt/, retrieve /ɹɪˈtɹiːv/, organize /ˈɔɹɡənaɪz/, adequate /ˈæd.ə.kwɪt/, concentrate /ˈkɑn.sən.tɹeɪt/
- /r/ 和 /l/ 的区别: flurry /ˈflʌ.ɹi/, irritable /ˈɪɹɪtəbl̩/, relax /ɹɪˈlæks/
- /æ/ — 嘴张大，不要读成 /e/: caffeine /ˈkæfiːn/, adequate /ˈæd.ə.kwɪt/, relax /ɹɪˈlæks/
如何用这段视频练习
- 先完整听一遍视频，不要开口，记下不认识的单词。
- 先用 0.75 倍速逐句跟读，熟练之后再回到正常速度。
- 录下自己的声音并与原声对比，特别注意 bedtime, housekeeping, stimulant 这类单词。
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。