跟读练习: What If We Built Vertical Farms? - 通过YouTube学习英语口语
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As our population grows, we're going to need a lot more farms to feed the planet.
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As our population grows, we're going to need a lot more farms to feed the planet.
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Yet, in a lot of places, farming is almost impossible.
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And much of the land we can use for farming is disappearing.
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With so many farms on land,
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could we build farms vertically to save space?
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Maybe it's time to grow up.
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The United States has 10% of the world's farmland,
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but between the years of 1992 and 2012,
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Over 12 million hectares of it was gobbled up due to development.
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That's 70 hectares per hour.
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As populations grow, this is happening in other countries around the world too.
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So where can we grow food?
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People have built farms all over our planet,
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in the most unlikely places.
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We've grown food in arid deserts and on the sides of mountains,
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and used greenhouses to extend growing seasons.
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But what about in a plant scraper?
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A Swedish company called Plantagon is working on one right now.
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The $40 million World Food Building in Sweden is set to open in 2020.
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The company calls this process agritektur.
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Alright.
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So why should we farm vertically?
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well, we'd save a lot of space and water.
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In fact, vertical farming saves 80-95% of the water used in traditional outdoor farming by using computer-controlled mist and slow drip systems.
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Vertical farming also means we wouldn't need expensive combines and tractors.
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Cities would have fresher veggies,
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and we wouldn't need to send trucks great distances to transport food.
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This would cut pollution too.
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So how exactly could we build a vertical farm?
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Using the power of AI,
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companies such as Belgium's Urban Crop Solutions are creating climate-controlled vertical farms up to 24 levels high.
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Farmers can grow anywhere from 75,000 to 91.5 million crops per year indoors.
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The company also sells indoor vertical farming kits for 12-meter shipping containers.
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These kits offer 4 to 6 levels,
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which can grow up to 54,000 crops per year.
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With the ability to control the lighting,
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moisture levels, and nutrients for each type of crop by using computers,
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plants grow much faster in a vertical farm.
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Plus, vertical farms don't require pesticides,
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since they're contained indoors and are high up off the ground where many insects thrive.
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The majority of crops grown in vertical farms include leafy green vegetables like kale,
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bok choy, watercress, arugula, lettuce,
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mizuna, mustard greens, collard greens,
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basil, mint, chard, and chives.
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That's almost everything you'd need for a power smoothie.
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Companies have started building vertical farms in existing urban spaces,
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such as abandoned warehouses and factories.
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The vertical farms can turn cities' excess heat and waste into vital assets for local food production.
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In China, entire districts are devoted to agriculture and vertical farming.
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With a rapidly growing population,
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less and less land has become available.
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And pollution is a big problem for traditional farms.
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In this case, growing vertically has become a necessity.
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Vertical farms have proven to be invaluable after natural disasters,
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such as the destruction of the nuclear power plant at Fukushima in Japan in 2011.
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Since land near the reactor was not safe for growing crops,
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consumers were happy to have their lettuce grown indoors.
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Five years later, there were more than 190 vertical farms in Japan.
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One company says it grows 21,000 heads of lettuce per day.
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That's a lot of salad.
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Many countries in the Middle East import almost 80% of their food due to their arid climate and landscape.
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Vertical farms could drastically improve this situation and would also create more jobs in the area.
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Tech companies like Google, Amazon,
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and Asia Pacific are already investing in vertical farming and automated agriculture.
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Soon we'll start seeing vertical farms in many more urban areas.
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These will help to bring communities together and provide safe access to nutritious food.
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But in order for vertical farms to succeed,
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they'll need the backing of consumers.
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Some people argue that this kind of farm is too unnatural or expensive,
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while others like the idea of fresh food produced closer to home.
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What do you think?
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Let us know in the comments below.
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In the near future, we may need to make vertical farming an even bigger priority,
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especially if we run out of oil.
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But that's a story for another WHAT IF.
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本课概述
在这节课中，你将通过观看关于“垂直农业”的视频，学习如何在密集城市环境中有效地进行农业生产。你将练习与农业相关的英语词汇和短语，并提升你的英语发音技巧。通过模仿视频中的对话，你将能够提高英语发音，增强英语口语能力，这对雅思口语练习尤为重要。
关键词汇与短语
- 垂直农业 (vertical farming) - 一种节省空间和资源的农业方式。
- 计算机控制 (computer-controlled) - 使用技术来管理农业生长条件。
- 气候控制 (climate-controlled) - 在特定环境中培养植物，以适应生长需求。
- 更多的蔬菜 (fresher veggies) - 在城市内种植新鲜的农产品。
- 可持续发展 (sustainable development) - 确保农业对环境的影响最小化。
- 无农药 (pesticide-free) - 在垂直农业中，由于环境可控，不需要使用化学杀虫剂。
- 绿色蔬菜 (leafy green vegetables) - 如羽衣甘蓝和小白菜，常见于垂直农业。
- 植物生长加速 (accelerated plant growth) - 通过优化环境条件，使植物生长更快。
实践技巧
在练习英语口语时，模仿视频中的发音和语调是非常重要的。你可以采用“shadow speech”的方法，跟随视频中的讲解，尝试准确地复述每一句话。此视频的语速适中，适合用作“影子练习”（shadowspeaks），特别是对于提高英语发音和语调有很大帮助。
在跟读的过程中，请注意停顿和重音的变化，尝试记录下自己与原视频的差别。可以使用手机录音功能，以便随时回听和调整。通过这种方式，你不仅在进行英语口语练习，同时也能提高你在雅思口语练习中的表现，增强流利度和自信心。
每次练习结束后，建议对比不同草本植物的英文名称，比如“甘蓝”（kale）和“水田芥”（watercress），这将强化你对相关词汇的记忆。持续不断的练习将帮助你在发音和表达上更上一层楼。
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。