跟读练习: Identifying a 'STEMI' Heart Attack With an iPhone App - 通过YouTube学习英语口语
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Music From VOA Learning English,
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this is the Technology Report.
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Researchers have developed an experimental iPhone application,
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or app, that they say can improve the chances of survival from a heart attack.
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The iPhone app is designed to identify patients suffering from a kind of heart attack known as a STEMI,
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or ST elevation myocardial infarction.
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In a STEMI, blood flow to the heart is stopped because of a blockage in a coronary artery.
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Unlike other kinds of heart attacks,
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STEMIs show up very clearly on an electrocardiogram, or ECG.
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Doctors use ECGs to measure electrical activity in the heart.
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The experimental iPhone app should help rescuers reacting to a possible medical emergency.
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They can perform an ECG and then take a picture of the test results with the camera on the telephone.
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They can then send that information ahead to hospital emergency room doctors.
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The iPhone app is the work of David Burt and his students at the University of Virginia in Charlottesville.
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He says the app can help save lives by preparing doctors for the arrival of the STEMI patient as early as possible.
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He says doctors can mobilize their system so that they can perform a catheterization to unblock the artery or some other treatment.
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David Burt and his team tested the app 1,500 times over three American cellular telephone networks in a populated area.
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He said the app was successful within less than 10 seconds,
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about 94 percent of the time time.
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The developers are now testing the iPhone app in rural areas where cell phone reception is more problematic than in cities.
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For VOA Learning English, I'm Alex Villareal.
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为什么要通过这个视频练习口语？
通过观察和模仿视频中的对话，学习者能够更好地掌握英语口语技能。在这个视频中，我们可以了解到一种连接科技和医疗的新型应用软件，帮助识别心脏病发作。这不仅提升了学习者对医疗英语的理解，同时也让他们在实际交流中更自信。通过反复练习，学习者可以应用英语影子跟读的方法来提高自己的发音及流利度。此外，在与他人讨论类似话题时，掌握相关词汇和句型将极大增强他们的沟通能力。
语法与表达在语境中的应用
在这个视频中，演讲者使用了几种关键的表达方式，学习者可以通过针对性的练习加强语言运用能力：
- Descriptive phrases: "suffering from a kind of heart attack known as a STEMI" - 此句型展示了如何具体描述一个特定的情况。
- Causative structures: "blood flow to the heart is stopped" - 这个被动语态的句子能够帮助学习者理解如何表达被动动作。
- Using technology in context: "the app can help save lives" - 这样的句型适合在讨论技术与生活关系时使用。
- Technical vocabulary: "electrocardiogram, coronary artery" - 熟悉这些术语将帮助学习者在专业场合自信交流。
练习这些句型时，注意适当运用英语口语练习的方法，以便在真实对话中灵活运用。
常见发音陷阱
在视频中，有些单词和短语可能会对学习者构成发音挑战，特别是对于非母语者：
- STEMI: 这个略语需要在快速交流中尤为清晰。
- myocardial infarction: 这种医学术语在发音上可能会引起混淆，建议进行分音节练习。
- electrocardiogram: 学习者可以尝试将此词分块发音，以提高流利度。
通过不断的重复练习，使用提高英语发音的技巧，将有助于克服这些发音障碍，提升沟通的能力。同时，参与shadowspeak和shadowspeaks的练习，将能够帮助学习者更好地掌握这些关键发音。
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。