跟读练习: How Much Screen Time Is Too Much for Children? - 通过YouTube学习英语口语
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This is the VOA Special English Technology Report.
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This is the VOA Special English Technology Report.
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Children can spend hours a day looking at computer screens and other digital devices.
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Some eye care professionals say all that screen time has led to an increase in what they call computer vision syndrome.
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Nathan Benilla Warford is an optometrist in Tampa,
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Florida, with VSP, Vision Service Plan, a big insurance provider.
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He says,
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I see a lot more children who are coming into the office either
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because their parents have noticed that they have headaches or red or watery eyes or discomfort,
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or because their prescription, their nearsightedness,
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appears to be increasing at a fast rate, and they're worried.
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Dr. Benilla Warford says part of the problem is that children may be more likely than adults to ignore early warning signs.
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Even if their eyes start to feel uncomfortable or they start to get a headache,
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they're less likely to tell their parents because they don't want to have the game or the computer or whatever taken away.
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He says another part of the problem is that people blink less often when they use digital devices.
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The average person who uses a computer
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or an electronic device blinks about a third as much as we normally do in everyday life.
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So the front part of the eye gets dry.
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Eye doctors offer suggestions like following what is known as the 20-20-20 rule.
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Every 20 minutes, look away 20 feet or more for at least 20 seconds from whatever device you're using.
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20 feet, that's 6 meters.
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Other suggestions include putting more distance between you and the device and using good lighting.
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Of course, you could also spend less time looking at screens.
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Many experts say children should spend no more than two hours a day using digital devices,
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with no screen time for children under two.
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But not all eye doctors have noticed an increase in problems in children.
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Dr. David Hunter says he has not seen an increase in his practice as a pediatric ophthalmologist at Children's Hospital Boston.
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He also serves as a spokesman for the American Academy of Ophthalmology.
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Dr. Hunter thinks calling it a syndrome,
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as in computer vision syndrome, is a little much.
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He says the real problem is simple.
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Spending too much time in one place focusing on one thing.
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And while this might be tiring to the eyes,
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he says, there's certainly no evidence that it actually causes any damage to the eyes.
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For VOA Special English Technology Report, I'm Alex Villarreal.
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关于本课
在本课中，学习者将练习与儿童屏幕使用时间相关的英语口语表达。通过听取关于儿童使用数字设备的报告，学习者将加深对相关词汇和短语的理解。此外，此课程将帮助学习者练习如何描述目光疲劳及其影响，从而提高语音流利度与发音准确性。无论您是初学者还是想提高口语的人，本课都非常适合您进行英语口语练习，特别是通过英语影子跟读的方式。通过shadowspeak和shadowspeaks的技巧，您将更有效地模仿并掌握这些表达。
关键词汇与短语
- 屏幕时间 (screen time) - 指每天花费在电子设备上的时间。
- 计算机视觉综合症 (computer vision syndrome) - 长时间使用计算机引起的眼睛不适。
- 近视 (nearsightedness) - 一种看近物清晰、看远物模糊的视力问题。
- 眨眼频率 (blinking rate) - 使用电子设备时的眨眼次数。
- 20-20-20法则 (20-20-20 rule) - 每20分钟，向远处看20英尺（约6米）至少20秒。
- 电子设备 (digital devices) - 包括计算机、手机、平板等数码产品。
- 视觉疲劳 (eye strain) - 长时间注视屏幕引起的眼部不适。
练习技巧
在本视频中，讲解的语速适中，学习者可以通过英语影子跟读的方式进行有效练习。以下是一些具体的练习建议：
- 首先，完整观看视频并认真聆听发音。注意讲话者的语音语调和重音。
- 尝试shadowspeak，在观看视频时跟着讲话者的语句，模仿他们的语速和语调。
- 每次模仿后，暂停视频复述关键内容，以强化记忆和理解。
- 利用英语口语练习中的生词表，确认您能够清楚地使用这些词汇进行描述。
- 通过与朋友或其他学习者进行对话练习，加深对视频内容的理解。
通过这些练习，您将能够更加自信地使用相关术语，提升口语流利度，与他人进行更流畅的交流。
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。