跟讀練習: Over (to) The Moon: Crash Course Kids #13.2 - 通過影片學習英語口語
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42 句
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1
You know how many people have actually been on the Moon?
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Twelve. That's all.
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But one day, we may go back there.
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We have a lot more to learn about the Moon and space in general.
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So some day, maybe in your lifetime, we'll send astronauts out there to study and explore.
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Do you want to be one of them?
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If you do, let me give you some helpful tips about a little thing called gravity, because you're going to need to know all about what gravity is and how it works if you're going to escape the pull of Earth and fly to the Moon.
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Now, you already know that astronauts can leave the Earth, but it takes a lot of effort to boldly go where few have gone before.
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But once astronauts reach the speed called escape velocity, they're able to overcome the force of Earth's gravity and get into orbit around our planet or head on over to the Moon.
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So, this brings up an interesting question: what happens when an object gets away from Earth's gravity, but close to the moon's gravity?
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You already know that gravity is the force that keeps us from flying off the surface of the Earth.
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And you know that gravity pulls things, not down, but towards the Earth's center.
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You also know that gravity exists between any objects that have mass, and the greater an object's mass is, the greater the effect of its gravity, or pull on other objects, is.
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But there's something more.
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Remember Isaac Newton, the apple tree guy?
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He determined that the amount of gravitational force, or pull, between two objects also depends on how far apart they are.
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So the farther away something is from the Earth, the less it will feel the pull of Earth's gravity.
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And the closer it gets to the Moon, the more it will feel the Moon's gravity pulling on it.
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Let's do a little pretending to see what happens to something when it moves closer to an object that has a really large mass, and therefore, a really strong pull of gravity.
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If you've ever made a wish on a shooting star, you've seen the effect of Earth's gravity pulling on an object.
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Shooting stars, which are actually meteors, occur when pieces of rock break off from a passing comet or asteroid and get too close to the Earth.
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For example, say this globe represents the Earth, and the marble represents a piece of space rock that's flying by.
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You can see that there's a huge difference in size between the two objects.
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And, if we were to put them on a scale, we'd see that there's a big difference in their mass too.
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Our model Earth has a larger mass.
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If the space rock is far away from the Earth, then it can go on its merry way, since it won't be affected by the Earth's gravity.
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But if it gets too close, then it and the Earth engage in a bit of tug-of-war, since both have gravity that pull on one another.
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It's not much of a fight though.
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The more massive Earth has a much larger gravitational pull, so the rock gets caught in Earth's gravity, and most of the time, it gives us a brilliant streak of light we call a meteor.
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But what does this mean for our space travelers?
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Well when an astronaut ship takes off for the Moon and moves away from the Earth, the farther away it goes, the less it feels the pull of Earth's gravity.
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And, as it gets closer to the Moon, the spaceship begins to feel the tug of the Moon's gravity more.
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So even though the Moon has a smaller mass than the Earth, and has less of a pull on the ship than the Earth does...
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once the ship gets closer to the Moon than the Earth, the Moon's gravity pulls the ship toward it.
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And then the astronauts can make a safe landing!
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So we can make the argument that two things affect the pull of gravity: First, the size of the object.
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Objects with a bigger mass have a stronger pull of gravity.
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And second, the distance between objects.
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The farther apart objects are, the weaker the pull of gravity between them, and the closer together they are, the stronger the pull of gravity.
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All of this means that when the day comes that you're flying a spaceship to the Moon, you just have to escape Earth's gravity, and then get close enough to the Moon to enter its gravity.
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Remember that when you're grown up, and you're welcome.
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If you wanna thank me, you could just name a crater or something after me when you get there.
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背景與上下文
在這段影片中，演講者討論了月球以及重力的基本概念。雖然只有12人到過月球，但未來可能會有更多的宇航員踏上這一偉大的旅程。演講者鼓勵觀眾思考自己是否希望成為未來的宇航員，並提供了一些關於重力的有用知識，幫助觀眾理解在太空旅行中如何克服地球的引力。一些精確的科學解釋和示例，使得重力的相關概念既生動又易於理解。
日常交流的五個常用短語
- What happens when an object gets away from Earth's gravity?（當一個物體脫離地球的引力時會發生什麼？）
- It takes a lot of effort to boldly go where few have gone before.（要勇敢地前往鮮有人踏足之地，需要付出很多努力。）
- The farther away something is from the Earth, the less it will feel the pull of Earth's gravity.（物體離地球越遠，感覺到的地球引力就越小。）
- The more massive Earth has a much larger gravitational pull.（更大質量的地球具有更大的引力。）
- Once the ship gets closer to the Moon, the Moon's gravity pulls the ship toward it.（當飛船靠近月球時，月球的引力便拉著飛船向它靠近。）
逐步模仿指南
要有效地練習模仿這段影片內容，可以按照以下步驟操作：
- 瞭解內容：在開始模仿之前，先仔細觀看影片，確保理解了重力以及月球相關的科學概念。
- 分段聆聽：將影片分成小段，逐一傾聽。每一小段後暫停，重複剛才聽到的內容。這種方法適合用於 看YouTube學英語。
- 專注語音：注意演講者的發音、語調和停頓。記錄下重點短語並多次重複，使用 shadowspeak 技術進行練習，從而提高口語流利度。
- 進行模擬對話：嘗試與朋友或家人進行角色扮演，模擬出一位宇航員和科學家之間的對話，使用影片中的短語和科學知識。
- 反覆練習：每天安排特定時間，反覆觀看影片並練習，提升發音和理解能力，逐步走向流利的口語表達，許多考生在 雅思口語練習 中都採用這樣的策略。
通過採取這些步驟，您將能夠不斷提升英語口語能力，進而自信地進行日常交流。
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 |
|---|---|
| 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 actually been · have gone · you've ever made |
| “will” 表將來 will + 動詞 — 決定、承諾或預測 | we'll send · will feel · won't be |
| 義務：must / have to / need to 表示某事是必要的 | need to know · have to escape |
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。