跟读练习: Learn English with VOA Special English - How to Make Your Own Solar Water Heater - 通过视频学习英语口语

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This is the VOA Special English Technology Report.
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Solar water heaters are used around the world and are not very difficult to build.
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The system we are going to describe is based on a design developed some years ago in Afghanistan.
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Since then, it has been built and used in many countries.
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It can heat 70 liters of water to 60 degrees Celsius.
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It can do this between sunrise and noon on a clear day with an average air temperature of 32 degrees Celsius.
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There are two parts to the solar water heater.
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One part is made of a sheet of metal painted black.
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Black surfaces become hotter in the sun than surfaces painted any other color.
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This black metal plate is called a collector.
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The collector is placed in contact with the water.
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There are several kinds of metal sheets that can be used for the collector.
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Corrugated metal will work very well.
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Corrugated sheets are often used as roofs on housing.
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Once the water is heated, it is kept hot with insulation material.
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This allows the water to stay warm for a long time.
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The second part of the solar water heater holds the water for the system.
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This storage tank can be a container that holds about 100 liters.
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Two rubber pipes are attached to the water storage tank.
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One pipe lets water flow into the system.
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The other lets water flow out.
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When the water heater is working correctly, water will flow from the storage tank to the collector and back again.
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You can use the hot water at the top of the tank for washing and cleaning.
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You can change the flow of water so that the temperature is hot or warm as desired.
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This solar water heater is easy to build and operate.
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It will last about two years before the rubber pipes need to be replaced.
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There is also something else you will need to make the solar water heater work, the sun.
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As you might expect, the heater will heat water only on sunny days.
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You can get more information about solar water heaters and other projects from Enterprise Works VITA.
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This group works internationally to fight poverty.
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The website is EnterpriseWorks.org.
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Choose the link for news and resources,
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then click on publications for VOA Special English I'm Alex Villarreal to read and
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listen to more stories about technology and for English teaching activities go
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to VOA special English comm we're on Facebook Twitter and iTunes at VOA learning English
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La la la la la La vida

为什么通过这个视频练习口语？

使用这段视频进行英语口语练习是一个极佳的选择。观看VOA特别英语节目，可以让你在真实的对话环境中提升自己的语言能力。视频中的内容旨在教授如何建造太阳能热水器，不仅包含了实用的知识，还帮助学习者在实际情境中运用英语。通过模仿和重复视频中的句子，学习者可以熟悉日常交流的常用表达，提高其shadow speech的能力，从而增强自信心与流利度。

语法与表达在语境中的运用

视频中讲解的句子结构及表达方式是学习者需要掌握的关键。以下是一些核心的语法结构：

  • 被动语态：如 “is used around the world”，适用于描述普遍现象。
  • 条件句：如 “if the heater is working correctly”，帮助表达假设条件下的情况。
  • 时间状语从句：如 “between sunrise and noon”，使叙述更为准确。
  • 动词不定式：如 “to heat water”，常用于表示目的和意图，更清晰地表达行动。

通过观察这些表达在上下文中的使用，学习者可以更好地理解和运用这些语法结构。

常见发音陷阱

在视频中，一些单词和短语可能对学习者构成发音挑战。以下是一些需要特别注意的发音：

  • “solar”（太阳能）：注意发音为/‘sōlər/，确保清晰可辨。
  • “collector”（采集器）：这个词在日常交流中可能被发错为“collection”，注意尾音的清晰发音。
  • “insulation”（绝缘材料）：掌握其音节的分隔，尤其是中间的“s”音。

对于想通过看YouTube学英语提升语言能力的学习者，shadowspeaks提供了一个很好的模仿资源，帮助他们克服这些发音困难。在日常练习中，可以使用视频中的音频进行shadow speak练习，有效提高发音准确性和流利度。

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。