跟读练习: Iron, Vitamin D May Lead to Smarter, Healthier Children - 通过YouTube学习英语口语
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I'm Alex Villarreal with the VOA Special English Health Report.
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I'm Alex Villarreal with the VOA Special English Health Report.
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Many people have low amounts of iron in their blood.
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But pregnant women need extra iron for their own health and their baby's health.
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Iron is important to the development of a baby's brain and central nervous system.
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In poor countries, however, providing all pregnant women with iron supplements can be a financial issue.
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Some experts say giving supplements to babies after they are born is enough.
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Someone who disagrees is Parul Christian,
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a nutritionist at the Johns Hopkins School of Public Health in Maryland.
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She and other scientists have been doing research in Nepal.
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She says their latest findings should settle any question about the value of making sure every pregnant woman receives iron supplements.
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Iron is a micronutrient.
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Micronutrients are important substances that are found in small amounts in foods.
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The researchers first completed a study among poor women in Nepal 10 years ago.
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During pregnancy, some of the women received supplements containing iron and another micronutrient, folic acid.
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Ms. Christian says that study showed the supplements could improve child survival.
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Now the children are older.
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The researchers returned to Nepal and tested their neurological development.
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They found improved abilities among those whose mothers had received iron and folic acid during pregnancy and for three months after.
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Another new study looks at levels of vitamin D in babies.
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It says newborns with the lowest levels were twice as likely
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to develop respiratory infections as those with normal levels of vitamin D.
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Vitamin D helps build strong bones and strengthens the body's defenses against disease.
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The vitamin is commonly added to cow's milk and also found in supplements.
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Vitamin D is called the sunshine vitamin.
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The body naturally produces it from sunlight.
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Carlos Camargo from Harvard Medical School in Massachusetts and other researchers did the study.
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It followed more than 900 children in New Zealand until they were five years old.
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Dr. Camargo said the problem of vitamin D deficiency is not limited to countries with the least sun.
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There are low levels of vitamin D in people living in areas where there is a lot of sun.
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This is because people are spending more time indoors.
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For VOA Special English, I'm Alex Villareal.
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You can find more health reports at our website, voaspecialenglish.com.
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And you can find us on Facebook and Twitter at VOA Learning English.
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背景与上下文
在这段报告中，Alex Villarreal讨论了铁和维生素D对儿童健康与智力发展的重要性。特别是孕妇在妊娠期间补充铁的重要性，以及确保婴儿获得足够维生素D的必要性。许多贫困国家的孕妇缺乏铁，而研究显示这种营养素对婴儿的大脑及神经系统的发展至关重要。此外，维生素D对增强身体抵抗力和骨骼健康也起着重要作用。此内容不仅对母亲和婴儿的健康有益，对于想要提高英语口语能力的学习者也是极佳的学习材料。
日常交流中的五个短语
- 孕妇需要额外的铁 - 表示孕妇在怀孕期间对营养需求的增加。
- 改善儿童生存率 - 用于讨论健康干预措施的效果。
- 维生素D缺乏 - 描述身体缺少某种维生素的状态。
- 增强身体的防御能力 - 用于讨论免疫系统或健康的增强。
- 依靠阳光获取维生素D - 强调自然获得营养的一个关键来源。
逐步模仿指导
要提升您的英语口语能力，我们推荐采用模仿学习法（shadowing）。以下是一个逐步指导，帮助您充分利用这段视频的内容：
- 选择视频片段：从整个采访中选择一小段，时长大约1到2分钟，便于集中练习。
- 初次收听：仔细听这一段，注意语音语调和发音。
- 逐句重复：暂停视频，尝试跟读每一句话，尤其是那些包含上面提到的短语的句子。专注于提高英语发音。
- 记录您的声音：使用录音设备，将您的模仿录下来，与原声对比，发现差距并改进。
- 定期练习：将模仿练习融入到您的雅思口语练习中，每周至少2-3次，逐渐提高流利度。
通过这个方法，您不仅能够提升您的英语会话技能，还能加强对重要公共健康话题的理解。欢迎访问我们的shadowing site，获取更多资源，帮助您在学习英语时无缝对接语言与现实生活。
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。