跟读练习: Science hacks for crispy snacks - 通过视频学习英语口语

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If you aren't getting that sound in your own kitchen, pull up a stool.

Because we are breaking down the science of crispy.

This is Minute Food.

There is nothing more disappointing than a limp spring roll or a soft french fry.

Crispiness makes or breaks these foods.

But in order to achieve crispy, you need to understand what it is.

Scientists test and quantify crispiness in all sorts of ways.

But it pretty much comes down to how loudly a food fractures.

There's disagreement about how different crispiness is from crunchiness, and we can debate that somewhere else.

But here, I'm going with crispy.

Anyway, there are two main qualities that make food more likely to do that loud, fracture-y thing we love so much.

The first is that the food, at least the surface of the food, has been dehydrated.

It's dried out.

And the second quality is that it's porous.

There's some space inside.

If you want to get ultimate crispiness at home, you need to consider and maximize these qualities.

Now, crispy foods can take lots of different forms.

I mean, here's a tiny subset of the crispy-liciousness out there.

But most often, they're fried, like my go-to guilty pleasure, fried pickles.

There's a reason we associate fried stuff with crispiness.

See, when you drop your food in hot oil, the bubbles that erupt from the food aren't the oil boiling.

They're moisture in the food that's gotten so hot that it vaporizes and escapes.

And as it escapes, it creates tunnels and pockets and crevices.

So with each bubble, you're dehydrating the surface of the food and creating spaces.

The two crisp-making qualities.

This is why frying is so good at making stuff crispy.

Or why it can be if you keep those crisp-making qualities in mind.

Like, say you're using batter.

Use it to boost that airspace.

You can add a leavener, like baking powder, or even some frothy beer to help form a network of beautiful airy bubbles.

And while we're talking booze, throw a little vodka in your batter too.

Alcohol is really volatile and will basically explode when it heats up, leaving behind big airy spaces.

If you're on team breading, choose large irregular shapes like panko.

Those flakes will form a big loose complex, giving you tons of nooks, crannies, and spaces.

And panko itself is full of nooks, crannies, and spaces, compounding its airiness.

Now once you're ready to fry, come in hot.

Because hot oil makes water evaporate more quickly, dehydrating the food more efficiently and creating more and larger air spaces.

So wait until your oil is nice and hot.

Use a pan that holds heat well, like cast iron.

That way the temp won't drop too much when you add the food.

And don't crowd the pan.

Fry in small batches.

And if you've ever noticed that your second batch is crispier than your first, you're onto something.

As you use oil, it breaks down and creates surfactants.

Essentially, molecules that help oil make better contact with food.

And more contact with food means more dehydration and more airy spaces.

So you'll actually get crispier food with oil that's already been used.

Up to a point.

Food that's been used too many times, say six or so, will have too many surfactants.

Food will get too dried out.

At that point, get rid of the oil.

But save a little bit to break in your new oil.

About a tablespoon of old stuff per cup of new stuff will help replicate that second batch sweet spot.

Now your food is cooked.

But your quest for crispiness isn't over.

Almost immediately, moisture inside the food will start creeping outside, rehydrating that surface you worked so hard to dehydrate.

That's one reason lots of restaurants fry their foods twice.

A second bath in hot oil removes additional moisture and adds even more air space, doubling down on crispiness.

If you've got the time at home, a double fry is worth a try.

Alternatively, until you're ready to serve, put the food on a metal rack in a low oven to drive away any of that creeping moisture.

That's assuming you can actually wait.

Because by maximizing these crisp-making qualities, you're going to have some gloriously loud, fracture-y food.

Of course, crispiness isn't the only thing that makes fried food awesome.

And maybe we'll chew on some of the other important stuff another time.

But for now, I'm gonna go eat these pickles.

Mmm. So good.

When we make minute food videos, we spend a lot of time making sure we're representing stuff in a way that clearly conveys what's important.

Like here we wanted to focus on the bonds within molecules, but here we wanted to emphasize structural similarity.

So we chose to represent the molecules in different ways.

The folks at our sister channel, MinuteEarth, have actually spent lots of time thinking about molecular representations, so much that they created an entire course about it over at Brilliant.

In this course, like all the other great courses at Brilliant, you can learn interactively at your own pace in a low-pressure environment.

is my first stop when I'm working on a video and need to get up to speed on new concepts.

You can get started there for free.

Just visit brilliant.org slash minute food or click on the link in the description.

The first 200 of you will get 20% off Brilliant's annual premium subscription.

And make sure to check out the awesome molecules course.

It'll change how you think about chemistry.

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FOR YOU

本课的词汇与口语要点

这节 B2 级别的口语课以视频“Science hacks for crispy snacks”为素材。视频中反复出现的词有：oil, crispiness, space, crispy, hot。这段视频共有 77 个句子、942 个单词可供跟读。讲话部分时长为 5:09。说话人语速较快，每分钟约 183 个词，会出现较多连读和弱读。只有 78% 的单词属于英语最常用的 3,000 词，词汇难度较高。

视频中的重点词汇

视频中最难的 15 个单词，附发音和释义：

单词	发音	释义
crispy 形容词	/ˈkɹɪs.pi/	脆的
fry 动词	/fɹaɪ/	煎, 炒
molecule 名词	/ˈmɑ.lɪ.kjul/	分子
moisture 名词	/ˈmɔɪs.t͡ʃɚ/	濕氣 /湿气
fracture 名词	/ˈfɹæk.t͡ʃʰəː/	骨折
batch 名词	/bæt͡ʃ/	批次, 批
bubble 名词	/ˈbʌbəl/	泡, 氣泡 /气泡
nook 名词	/nʊk/	角落
pickle 名词	/ˈpɪkəl/	醃菜 /腌菜, 鹹菜 /咸菜
surfactant 名词	/səɹˈfæktənt/	表面活性劑 /表面活性剂, 界面活性劑 /界面活性剂
maximize 动词	/ˈmæksəmaɪz/	最大化
airspace 名词		領空 /领空, 空域
crevice 名词	/ˈkɹɛvɪs/	缝隙
dehydration 名词	/dihaɪˈdɹeɪʃən/	脫水 /脱水
evaporate 动词	/ɪˈvæp.ə.ɹeɪt/	蒸發掉 /蒸发掉, 揮發 /挥发

视频中出现的短语动词

单词	释义
break down 动词	壞了 /坏了, 出故障
check out 动词	退房
drive away 动词	趕走 /赶走
get up to 动词	幹 /干, 做
heat up 动词	加熱 /加热
leave behind 动词	遺棄 /遗弃

视频中的语法

说话人最常用的结构，并附上视频中的原话：

结构	视频中的用法
现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事	has been dehydrated · you've ever noticed · that's already been
被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的	has been dehydrated · is cooked

需要注意的发音

说话人用了 26 次缩略和弱读形式，例如 you're, I'm, aren't。请按听到的简短形式来说。

“sh” 和 “zh” 音: dehydration /dihaɪˈdɹeɪʃən/, subscription /səbˈskɹɪpʃən/, structural /ˈstɹʌk(t͡)ʃəɹəl/
长单词——注意重音位置: dehydration /dihaɪˈdɹeɪʃən/, evaporate /ɪˈvæp.ə.ɹeɪt/, similarity /ˌsɪm.ɪˈlæɹ.ɪ.ti/, disagreement /dɪsəˈɡɹiːmənt/, irregular /ɪˈɹɛɡ.jə.lɚ/

中文母语者容易读错的音：

/v/ — 不要读成 /w/，上齿轻触下唇: crevice /ˈkɹɛvɪs/, evaporate /ɪˈvæp.ə.ɹeɪt/, volatile /ˈvɑ.lə.təl/, alternatively /ɔlˈtɝ.nə.tɪv.li/, vodka /ˈvɑdkə/
词尾辅音 — 要读清楚，后面不要加元音: dehydrate /diːhaɪˈdɹeɪt/, crisp /kɹɪsp/, batch /bæt͡ʃ/, nook /nʊk/, surfactant /səɹˈfæktənt/
/r/ 和 /l/ 的区别: replicate /ˈɹɛplɪkeɪt/, similarity /ˌsɪm.ɪˈlæɹ.ɪ.ti/, irregular /ɪˈɹɛɡ.jə.lɚ/, molecular /məˈlɛk.jə.ləɹ/, structural /ˈstɹʌk(t͡)ʃəɹəl/

如何用这段视频练习

先完整听一遍视频，不要开口，记下不认识的单词。
先用 0.75 倍速逐句跟读，熟练之后再回到正常速度。
录下自己的声音并与原声对比，特别注意 crispy, fry, molecule 这类单词。

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。

影子跟读法: 阅读完整分步指南 →

跟读练习: Science hacks for crispy snacks - 通过视频学习英语口语

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