跟读练习: Climate Change and Global Warming: Explained in Simple Words for Beginners - 通过视频学习英语口语

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Climate change is one of humanity's most severe and urgent challenges.
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As can be expected from anything that has a worldwide impact, climate change and global warming are often shrouded in controversy and competing narratives.
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With that in mind, let's begin by understanding what exactly climate change is and what makes it so dreadful for our planet.
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The term climate change is used to denote the long-term changes in the weather patterns in a given region.
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Another term often interchanged with climate change is global warming.
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Global warming is formally defined as a rise in Earth's temperature that persists for a decade or longer.
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There could be several causes for climate change, but the biggest one is the rising concentration of greenhouse gases.
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Simply put, greenhouse gases are those gases in our atmosphere that trap heat.
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Some examples include carbon dioxide, methane, chlorofluorocarbons, nitrous oxide, and ozone.
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How these gases affect climate change depends on their amount and their global warming potential, or GWP.
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This metric tells us how long a gas remains in the atmosphere, on average, and how strongly it absorbs energy.
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Naturally, gases with a higher GWP absorb more heat, and thus contribute more to increasing Earth's overall temperature, or in other words, warming it.
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Natural sources and human activities both result in the emission of greenhouse gases.
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One of the most common ways these gases get released into the atmosphere is through the burning of fossil fuels.
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Burning coal or oil to run industrial processes or giant factories increases the concentration of atmospheric carbon dioxide.
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Indeed, fossil fuels' contribution to greenhouse gas emissions is the largest, in the range of 70 to 80% of total emissions.
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Agriculture is another serious factor.
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Greenhouse gas emissions from agriculture come from livestock such as cows, agricultural soils and rice production,
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and are in the range of 10 to 15% of all emissions.
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Clearing forests for cultivation, industry and other human activities also increases concentrations of greenhouse gases, especially carbon dioxide.
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The share of changes in land use patterns represents 5 to 10% of all emissions.
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Carbon dioxide concentration is the highest among all greenhouse gases in the atmosphere.
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Therefore, it is a significant contributor to global warming.
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Since the Industrial Revolution, a drastic increase in economic activity has triggered a sharp uptick in carbon dioxide emissions worldwide.
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These emissions are higher than the amount that can be captured by the Earth's natural carbon cycle.
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This is why rising carbon dioxide emission is a point of great concern to every nation on the planet.
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The rise in global temperature changes several other weather patterns and geographical conditions.
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For example, an increase in temperature directly impacts the snow, river and lake ice, sea ice, glaciers, ice caps, ice shelves,
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and ice sheets, as well as frozen ground, also known as permafrost.
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The rising surface temperature causes a decline in ice mass.
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Ice mass measurement by NASA's satellite shows that the Antarctic and Greenland mass is declining at an unprecedented rate.
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are also retreating almost everywhere, including the Alps, Himalayas, Andes, Rockies, Alaska, and Africa.
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Furthermore, oceans absorb almost 90% of the excess heat from the surrounding air, making it warmer.
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Although most of the heat is absorbed in the surface as the rate of warming increases, the heat permeates to deeper waters and harms marine ecosystems.
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Sea level rise is caused primarily by water from melting ice sheets and glaciers, and the expansion of seawater as it warms.
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Satellite observations indicate that the sea height is increasing rapidly and will continue to rise at an increasingly rapid pace.
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The rise in sea levels negatively affects the populace of coastal areas.
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It also plays a role in flooding and leads to an increase in storms.
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Climate change also leads to changes in the frequency, intensity, spatial extent, duration, and timing of weather and climate extremes.
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Some extreme weather events include floods, droughts, hurricanes, and heat waves.
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Weather and climate extremes occur when the weather or climate metric is above or below a threshold value of the variable.
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Some of the changes in weather patterns include an increase in the number of warm days and nights, a decrease in cold days and nights,
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and an increase in the frequency and intensity of daily temperature extremes.
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As you can imagine, climate change or global warming doesn't happen overnight.
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These changes occur over decades or even centuries.
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Thus, it stands to reason that it's impossible to either stop
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or completely reverse its effects in just a few weeks or months.
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However, as a community, we could do many things to slow down global warming
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and eventually embrace ways to stop or reverse it.
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The first and most crucial aspect of recovery is awareness, namely understanding and spreading awareness about the risks associated with climate change.
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On a personal level, we could look at our transportation and power consumption habits.
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Since industrial and automobile emissions, along with the consumption of electricity, which is primarily generated by burning fossil fuels,
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are the most significant reasons for increasing carbon dioxide concentration in the atmosphere,
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rethinking these consumption patterns would make a measurable dent in our collective carbon emissions.
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Climate change is a real threat, but if we all come together, take a stand, and be more environmentally conscious in our decisions, we can still save our beautiful blue planet.

背景与背景知识

气候变化和全球变暖是人类面临的最严峻和紧迫的挑战之一。由于其对全球的广泛影响，气候变化常常伴随着争议和竞争的叙述。为了帮助学习者更好地理解这一重要话题，本文将通过分析视频中的关键内容，来提高您的英语口语表达能力。通过观看YouTube视频学英语，您可以更有效地吸收并应用这些知识，特别是在对话中准确表达这些概念。

日常交流中的五个重要短语

  • 气候变化 (Climate change): 指某一地区长期的天气模式变化。
  • 全球变暖 (Global warming): 特指地球温度在十年或更长时间内的持续上升。
  • 温室气体 (Greenhouse gases): 这些气体能在大气中捕获热量，主要包括二氧化碳、甲烷等。
  • 自然源与人类活动 (Natural sources and human activities): 两者均会导致温室气体的排放。
  • 减缓全球变暖 (Slow down global warming): 指为了应对气候变化而采取的各种措施。

逐步跟读指导

为了有效提高您的英语口语练习能力，您可以尝试以下跟读步骤，特别是结合本视频内容进行影子发音练习。

  1. 选择视频片段: 从视频中选择1-2分钟的片段，确保内容涵盖重要的气候变化概念。
  2. 精听与识词: 在首次观看时，注意听取关键短语和专业术语。这将帮助您在理解内容的同时，积累必要的词汇。
  3. 停顿跟读: 视频播放后，暂停并重复视频中的句子。这是一个完美的影子发音（shadow speech）练习，可以帮助您提高发音的准确性。
  4. 复述与总结: 在练习完后，尝试用自己的话复述视频中的要点。这可以增强您的表达能力，提升您的自信心。
  5. 进行讨论: 找人一起讨论气候变化的问题，或在线参与相关话题讨论。通过互动，您可以更好地应用所学，锻炼您的口语能力。

结合这些技巧，您将能够更清晰地表达自己，并在日常交流中使用这些气候变化相关的短语。让我们一起努力，提升英语口语，保护我们的地球！

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。