跟讀練習: What If We Detonated All Nuclear Bombs at Once? - 通過影片學習英語口語

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Many of our viewers have asked us a very serious question: What if we made a big pile of bombs and exploded every nuclear weapon in the world all at once?

Strangely enough, we couldn't find a good source to answer this question to our satisfaction.

So, we gathered together a few scientists to calculate what would happen.

And find an answer to this extremely important scientific problem, once and for all.

Currently, there are 15,000 nuclear weapons on Earth.

The US and Russia both have around 7,000, while France, China, the UK, Pakistan, India, Israel, and North Korea own around 1,000 between them.

But, how much destructive power is this really?

Let's try to put these numbers into perspective.

On Earth, there are about 4,500 cities or urban areas with at least 100,000 inhabitants.

Some are bigger than others, so we'll assume that on average, we need three nuclear bombs to completely wipe out one city.

This means we could destroy every single city on planet Earth, with our nuclear arsenal, killing more than three billion people -- roughly half of humanity in an instant.

And, we'd still have 1,500 nuclear weapons left.

Now that's what an expert would call, "overkill." So, we can say with confidence, that we have a lot of nuclear weapons and they can do a lot of damage.

But, what if we make a huge pile of all 15,000 bombs and pull the trigger?

Let's drop our nuclear pile in the middle of the Amazon rainforest; just a show nature who's boss.

Our warheads, piled haphazardly, fit into a small warehouse.

A typical US warhead has the power of two hundred thousand tons of TNT.

So, fifteen thousand warheads would be the equivalent of three billion tons of TNT.

For scale, this is enough to rebuild the whole island of Manhattan with every building and skyscraper using stacks of TNT.

The closest thing we can compare to the energy gathered here, is a volcano.

One of the deadliest volcanic eruptions in recorded history took place in 1883, on the island of Krakatoa.

The eruption was so powerful, that 70% of the island, and the surrounding archipelago, was destroyed killing tens of thousands of people.

Its effects were felt around the world for days after the event.

Our nuclear pile contains 15 times the energy of the Krakatoa volcanic eruption.

So, let's finally push the button.

Three, two, one.

In a second, a fireball 50 kilometers across vaporizes everything in its way, and creates a blast wave that flattens 3,000 square kilometers of forest.

Every living thing within 250 kilometers will start to burn.

The explosion will be heard literally around the world, as the pressure wave circles the Earth tens of times over the next few weeks.

Millions of tons of incinerated material are catapulted into the atmosphere.

The mushroom cloud reaches the outer reaches of the stratosphere, pushing up against space itself.

After things have calmed down, a small crater -- about ten kilometers across is left in the center of the worst world fires the planet has seen in millennia, spreading throughout South America, burning down forests and cities alike.

And, now, the unpleasant part begins.

Extremely radioactive material will kill living things very quickly, and a large area several kilometers around the crater is now uninhabitable, as is everywhere for hundreds of kilometers downwind.

Much of the fallout is carried high into the atmosphere by the mushroom cloud and carried around the planet.

The amount of radioactive material in the environment doubles worldwide, which still isn't civilization-ending, but we may see more cancer for a while.

A portion of the particles will flow to the edge of space for years and cause a nuclear winter that could lower global temperatures by a few degrees for a few years.

This explosion was pretty bad if you're in South America, and especially Brazil.

The Amazon rainforest is pretty much history, which is not great.

But, human life will go on.

OK, but what if we explode more nuclear weapons?

Let's suppose humanity decided to mine every bit of uranium on Earth and build as many nuclear bombs as possible.

At current usage, it's estimated that there are around 35 million tons of uranium in Earth's crust; enough to power human civilization for over 2,000 years, or to build millions of nuclear warheads.

For the sake of argument, let's say we create a pile with the yield of 10 billion Hiroshima bombs, which makes up a cube three kilometers high that contains roughly the energy of the asteroid impact that ended the age of the dinosaurs 65 million years ago.

Except, it's also nuclear.

Three, two, one.

Our pile explodes in a fireball stretching so high into the sky that it's visible from half of South America, with so much power that the ground just splashes like water forming a crater 100 kilometers across.

Bedrock on the scale of whole mountain ranges is vaporized in an instant, while thousands of tons of material is catapulted away with such speed, that it's ejected into space.

Some leaves Earth forever, while most of it comes raining down as hot, burning debris that heats up the atmosphere to oven-like temperatures, killing most big animals and causing fire storms all over the world.

The Earth's crust rings like a bell struck by global earthquakes stronger than anything in recorded history, decimating cities around the world, while hurricane-force winds flatten every single tree in South America, and wildfires consume the continent.

The abundance of hydrocarbons in the Amazon burn to form ash, are cast into the atmosphere, darting the sky and keeping sunlight from reaching the surface, dropping temperatures to near freezing worldwide.

The ensuing global winter may last for decades, and results in the extinction of every large animal species, humans included.

We could also mention that every corner of the planet is covered with radioactive fallout, but at this point, it doesn't matter that much anymore.

This is humanity's extinction event.

The astronauts aboard the International Space Station get to enjoy a great view for a while, but it's not unlikely that the spray of rocks blast into orbit will destroy the Station.

Those lucky enough to be in bunkers, or in submarines deep below the ocean surface, may survive the longest before they exhaust their food supplies, and have to venture out for more.

They'll find the world a charred, freezing, radioactive wasteland.

The planet, itself, doesn't care at all.

After just a few million years, the wounds of the explosions have healed and life is thriving, arguably even more so than when humans were around.

If intelligent life emerges again, it might be able to work out what happened.

When they study geology, they'll find a bizarre and very thin layer of rock covering the entire world, enriched in radioactive elements like uranium, and the other nasty things it decays to, mixed with rare earth metals and plastics that humans used.

They would probably be very, very confused.

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為什麼要通過這個影片練習口語？

在學習英語的過程中，看YouTube學英語是一種非常有效的方法。這段影片探討了一項引人入勝且深具想像力的科學假設：假如同時引爆世界上所有的核彈，會發生什麼？通過觀看這樣的內容，學習者不僅可以瞭解科學知識，還能提高自己的英語口語表達能力。在這種情境下進行練習，有助於提升對複雜話題的理解及表達能力，同時也能增強對英語發音和語調的敏感度。

語法和表達在語境中的運用

影片中運用了一些關鍵的語法結構和表達方式，以下是幾個例子：

假設句：例如“假如我們將所有核彈同時引爆會發生什麼？”這種結構幫助學習者理解假設語氣的運用。
被動語態：如“...市區被完全摧毀”，被動語態常用於描述動作的承受者，有助於學習者瞭解句子重點及突出效果。
比較級和最高階：說到“這次爆炸的能量是克拉卡托火山爆發的15倍”，比較級的運用使得資訊更加生動具體。
條件句：如“萬一人類決定開採地球上的所有鈾...”，條件句在表達假設和推測時格外重要。

通過這些結構的練習，學習者可以更好地掌握英語句子的構造，提高寫作和口語表達能力，輔助於雅思口語練習。

常見的發音陷阱

在影片中，某些單詞的發音可能會給你帶來挑戰。以下是一些需要特別留意的：

detonated（引爆） — “detonate”的發音對於非母語者可能較難，尤其是母音的發音。
nuclear（核） — 這個詞經常被錯誤發音，確保注意“nu-清”音節的發音。
vaporizes（蒸發） — 在快速講話時可能會聽不清，練習時可以用英語影子跟讀技術逐步掌握。

通過反覆聽和練習這些詞彙，配合提高英語發音的努力，學習者將能更流利地表達自己的觀點。

影片中的語法

說話人最常用的結構，並附上影片中的原話：

結構	影片中的用法
被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的	was destroyed · were felt · will be heard
現在完成時 have/has + 過去分詞 — 過去發生但與現在仍有關聯的事	have asked · have calmed · have healed
定語從句 who / which + 從句 — 補充說明人或事物	history, which is · bombs, which makes

什麼是跟讀法？

跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。

影子跟讀法: 閱讀完整分步指南 →

跟讀練習: What If We Detonated All Nuclear Bombs at Once? - 通過影片學習英語口語

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為什麼要通過這個影片練習口語？

語法和表達在語境中的運用

常見的發音陷阱

影片中的語法

什麼是跟讀法？