跟讀練習: Build Earth from the Inside Out! - #sciencegoals - 通過影片學習英語口語
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Our planet is an amazing place … but there are parts of it that no one has ever seen!
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Like where?
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Like in the middle!
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No one has ever been to the center of the Earth, not even close!
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The deepest hole that’s ever been dug didn’t even make it through the thinnest, outer layer of Earth’s four amazing layers.
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But even if you could go deeper than that, you’d have a really hard time digging!
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Because those inner layers of the Earth get really hot!
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So today, we’re going to get as close as we can to seeing the center of the Earth, by building a model of our planet!
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First, let’s go through what we know about Earth’s four main layers.
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The first layer is the one you’re on right now!
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It’s called the crust.
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The crust is the outermost layer of our planet, and it includes all of the land you can see … as well as the land that you can’t see, like the very bottom of the ocean.
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The crust is also the thinnest of Earth’s layers.
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But even so, we’ve never been able to dig all the way through it!
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The crust is nice and cool on the outside, but once you dig down a kilometer or so, it starts to get really warm really fast.
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And the deeper you go, the hotter it gets!
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By the time you reach the bottom of the crust, it’s too hot for anything to live in!
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Now, after the crust comes the second layer: the mantle.
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It’s the thickest of all of Earth’s layers.
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This layer is so hot that the rocks that make up the mantle are actually melted!
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But we’re not done yet!
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The third layer is the outer core, and beneath that, at the very center of the Earth, is the fourth layer, the inner core, the hottest of all the layers!
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Now that we know each of the Earth’s layers, we can make a model of our planet, from the inside out!
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All you’ll need is a bunch of different colors of art clay.
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You can use whatever colors you like.
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But I’m going to use red, orange, yellow, brown, green, and blue.
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Each layer in our model is going to have its own color, so we can tell them apart.
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Now, what kind of temperature do you think of when you think of the color red?
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I think hot!
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So let’s use red for the hottest layer, the inner core.
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Orange doesn’t seem as hot to me, but it does seem warmer than yellow, so we’ll use orange for the outer core.
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Then let’s use yellow for the mantle, and brown for the coolest layer, the crust.
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But what about the green and blue?
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We can use these colors to make the continents and the oceans, that is, the big masses of land and water, they’re parts of the crust, too.
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Ok, so, let’s start with our innermost layer, the inner core.
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We’ll take some red clay and roll it into a ball between our hands.
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Once we have our inner core, let’s take some orange clay and wrap that around the red ball.
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Our Earth is growing!
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And the outer core is... almost done.
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There! Next, we’ll put on a layer of yellow, which will be our mantle.
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Do you remember what’s special about this layer?
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The mantle is the thickest of Earth’s layers!
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So let’s add a little bit of extra yellow to make sure it’s nice and thick.
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This looks great!
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Now we’ll cover the mantle with brown, for our crust.
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The crust is the thinnest layer, so we won’t use as much clay for that.
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There we go!
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We got the crust done!
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But we still have the blue and green left over to make continents and oceans.
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You can shape the continents to make them look like they do on your globe, or you can make them look however you like.
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It’s your model after all!
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This looks great!
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But now that our model of Earth is done, we can’t see the layers inside.
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So let’s ask a grown-up for help, because I have an idea!
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Ask them to find a butterknife and very carefully cut your globe in half.
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Ooooo! Look at that!
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You can see all of the layers.
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On the outside is the crust, second is the big yellow mantle, next is the outer core, and finally the very middle is the inner core.
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That’s right Squeaks, it does look really cool!
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But there are lots of other ways you can make your own Earth!
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You can try making Earth’s layers with colored construction paper.
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Or if you want to take a more delicious route, you and a grown up can make a four-layered cake, with each layer colored to represent a layer of the Earth!
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Get creative and have fun!
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Thank you for joining Squeaks and me to create the Earth from the inside out, and we’d like to give a big thank you to Google Making Science for helping us make this episode!
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Do you have a globe you want to share with us?
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Or do you have more questions about Earth?
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We’d love to hear from you!
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Just grab a grown-up and leave us a comment down below, or send us an e-mail to [email protected].
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And we’ll see you next time!
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為什麼用這個影片學英語？
這段影片用簡單有趣的方式講解地球結構，對話口語化且邏輯清晰，非常適合看YouTube學英語。內容圍繞“製作地球模型”展開，既有科學知識又有動手步驟，詞彙貼近生活，語速適中，是練習shadow speech的好素材。
日常交流高頻短語5則
- dig through：穿過（如“我們從未挖穿地殼”）
- wrap around：包裹（如“用橙色黏土包裹紅球”）
- start to get：開始變得（如“往下挖一公里就開始變熱”）
- make up：組成（如“構成地幔的岩石”）
- shape...to look like：把…塑造成…樣子（如“把大陸塑造成 globe 上的形狀”）
影子跟讀法分步練習指南
針對影片特點，建議這樣練習：
1. 先聽一遍，理解“地球四層結構”和“製作步驟”的邏輯，標註連讀（如“dig down”“hot for”）。
2. 逐句暫停，模仿語調（講解科學知識時的平緩，動手環節的輕快），重點練“the crust is...the mantle is...”這樣的句式，為雅思口語練習積累描述結構的表達。
3. 完整跟誦3遍，關注“now”“so”等連線詞的節奏，提升流暢度。
這個方法比單純背單詞有效，適合作為shadowing site的入門練習。
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 | has ever seen · has ever been · that's ever been dug |
| 被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的 | been dug · are actually melted |
| 最高階 the -est / the most … — 一組中最高或最低的 | The deepest · the thinnest · the thickest |
| 比較級 -er than / more … than — 比較兩個事物 | deeper than · warmer than |
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。