跟读练习: Radioactive Waste - 通过视频学习英语口语
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Waste is an unavoidable consequence of everyday life.
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In terms of volume, radioactive waste is a very small portion of all waste.
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It's the byproduct of millions of medical procedures each year, industrial and agricultural applications that use radiation,
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and nuclear reactors that generate around 10 % of global electricity.
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Radioactive waste requires careful management to protect people and the environment from radiation now and in the future.
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Radioactive waste is first characterized to determine its physical and chemical properties as well as its radioactivity.
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It's then processed, which may include sorting, decontamination and steps to reduce volume.
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The waste is classified based on its long -term management objectives
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and put into a safe condition for interim storage and, ultimately, disposal.
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Very low -level waste and low -level waste contain small amounts of radioactive substances.
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It includes waste generated by industries and hospitals or items such as clothes used in nuclear facilities.
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This waste requires minimal isolation and is suitable for disposal in near -surface facilities.
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Intermediate -level waste is more radioactive and typically comprises materials from decommissioned reactors and research laboratories.
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It requires more containment and isolation.
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High -level waste presents the greatest hazard.
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It accounts for a minute portion of the total volume of all radioactive waste and includes waste from nuclear power plants.
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High -level waste requires greater containment and its disposal is planned in engineered facilities several hundred meters underground.
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In the meantime, it is safely stored in purpose -built facilities.
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The IAEA provides support to countries in the safe management of all radioactive waste.
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关于本课
您正在使用跟读技巧通过视频"Radioactive Waste"练习英语口语和发音。
每天练习15到30分钟，将显著提高您的英语流利度和发音准确度。
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。