跟读练习: 2014 Three Minute Thesis runner-up presentation by Cassie Hilditch - 通过视频学习英语口语
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Our fourth finalist is Cassie Hilditch from the Centre for Sleep Research in the School of Psychology Social Work and Social Policy.
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Her presentation is entitled Waking Up Tired: effects of a nighttime nap on performance and alertness.
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Thank you, Cassie.
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Thank you.
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I want you all to think about how you felt when you first woke up this morning.
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Did you wake up feeling tired?
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A little groggy or disoriented, like you needed a strong coffee, a hot shower, and about 30 minutes to start thinking straight?
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Well, this is what we call sleep inertia.
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It's when the momentum of sleep continues into wakefulness.
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And it's during this period that our ability to process information is impaired.
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So for most of us this occurs while we're shuffling around the house getting ready for work or school.
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So what's the problem?
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Well, consider shift workers people who work on call, People who nap on shift, People like emergency service workers, pilots, and doctors.
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These people may have to make life -changing decisions.
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problem -solve time -critical situations or simply drive a vehicle soon after waking.
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And it's in these scenarios that sleep inertia can be a significant safety risk.
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Now, the current guidelines for napping on shift say that you can sleep for up to half an hour.
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This way you won't go into a deep sleep and you'll avoid sleep inertia.
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but this advice is based on studies conducted in the afternoon.
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and we don't really know what might happen after a half
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an hour nap at night say at 4 :00 a .m when we're most sleepy.
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So what did we do?
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Well, we took 21 healthy adult subjects and confined them to the sleep laboratory for one night.
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and deprived them of sleep to simulate a night shift.
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We gave one group a 30 minute nap ending at 4 :00 a .m.
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and the other group were kept awake for the whole night.
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We then tested the performance of both groups at 4 :00 a .m and again every 15 minutes for the next hour.
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And what did we find?
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Well, our research showed that performance after the nap was significantly worse than before the nap.
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and worse than the control group who had had no nap at all.
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and this performance impairment continued for up to half an hour after the nap.
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And interestingly, When we ask people to rate how they felt they had performed, They said they performed better after the nap.
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That is? they were completely unaware of the impact that sleep inertia had had on their performance. So what's the message?
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Well, this research is informing and challenging current fatigue risk management guidelines for napping on shift.
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We now know that if you take a 30 minute nap ending at 4am, then you should include an additional 30 minute buffer zone before returning to safety critical duties.
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We also need to educate workers about the risks of overestimating their performance during this period.
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Our future research will look at shorter naps to see whether they can provide immediate performance benefits
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without the side effects of waking up tired.
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Thank you.
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applause
📺 同频道
✨ 推荐视频
背景与情境
这是一段关于睡眠研究的演讲视频,演讲者探讨了夜班 naps 对表现的影响。内容涉及专业术语与日常表达的结合,适合用于雅思口语练习和英语口语练习。通过学习这类视频,不仅能积累学术词汇,还能掌握清晰表达观点的技巧,是看YouTube学英语的优质素材。
日常交流高频短语5则
- sleep inertia:睡眠惯性(指睡醒后仍处于迷糊状态)
- safety - critical duties:安全关键任务(如医护、驾驶等需高度专注的工作)
- performance impairment:表现受损(指能力下降)
- buffer zone:缓冲期(用于过渡的时间)
- fatigue risk management:疲劳风险管理(工作中的安全管理范畴)
分步影子跟读指南
该视频语速适中,逻辑清晰,适合shadow speech练习。第一步:先完整听一遍,理解演讲结构(问题提出→研究方法→结论建议)。第二步:逐句跟读,重点模仿重音(如“significantly worse”)和停顿(如“that is? they were completely unaware…”),提升口语流畅度。第三步:针对长句(如“Our research showed that performance after the nap was significantly worse than before the nap…”),拆分结构,重复练习,掌握复杂句表达。第四步:录音对比,关注sleep inertia等术语的发音准确性。通过shadowspeaks训练,既能强化听力,又能提升口语表达的逻辑性,为雅思口语考试中的学术话题讨论积累经验。
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。








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