跟读练习: The First Principles Method Explained by Elon Musk - 通过视频学习英语口语
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33 句
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1
And then I think it's also important to reason from first principles rather than by analogy.
2
So the normal way that we conduct our lives is we reason by analogy.
3
We're doing this because it's like something else that was done, or it's like what other people are doing.
4
Me too type ideas.
5
Yeah, slight iterations on a theme and it's kind of mentally easier to reason by analogy rather than from first principles.
6
But first principles is kind of a physics way of looking at the world.
7
And what that really means is you kind of boil things down to the most fundamental truths and say, okay, what are we sure is true or as sure as possible is true?
8
And then reason up from there.
9
That takes a lot more mental energy.
10
Give me an example of that.
11
Like what's one thing that you've done that on that feels worked for you?
12
Sure.
13
So somebody could say, and in fact people do, that battery packs are really expensive and that's just the way they'll always be.
14
Because that's the way they've been in the past.
15
You're like, well, no, that's pretty dumb pretty dumb, you know, because if you applied that reasoning to anything new,
16
then you wouldn't be able to ever get to that new thing.
17
Right.
18
So, you know, it's like you can't say, oh, you know, horses,
19
nobody wants a car because horses are great and we're used to them
20
and they can eat grass and there's lots of grass all over the place and, you know, there's not like a, there's no gasoline that people can buy, so people are never going to get cars.
21
Right.
22
that people did say that.
23
And for batteries, they would say, oh, it's going to cost,
24
you know, historically it's cost $600 per kilowatt hour.
25
And so it's not going to be much better than that in the future.
26
And you say, no, okay, what are the batteries made of?
27
So the first principles would be to say, okay, what are the material constituents of the batteries?
28
What is the spot market value of the material constituents?
29
So you can say, okay, it's got cobalt, nickel, aluminum, carbon, and some polymers for separation, and a seal can.
30
So break that down on a material basis and say, okay, if we bought that in London Metal Exchange, what would each of those things cost?
31
Like, oh, geez, it's like $80 per kilowatt hour.
32
So clearly you just need to think of clever ways to take those materials
33
and combine them into the shape of a battery cell and you can have batteries that are much, much cheaper than anyone realizes.
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本课的词汇与口语要点
这节 C1 级别的口语课以视频“The First Principles Method Explained by Elon Musk”为素材。 视频中反复出现的词有：batteries, principles, material, analogy, cost。 这段视频共有 33 个句子、449 个单词可供跟读。 讲话部分时长为 2:48。 说话人语速自然，每分钟约 160 个词，接近日常对话。 89% 的单词属于英语最常用的 3,000 词，其余的词建议在练习前先学一下。 全部 33 个句子中有 6 个是问句，适合练习疑问语调和简短回答。
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 |
|---|---|---|
| principle 名词 | /ˈpɹɪn.sɪ.pəl/ | 原理, 原則 /原则 |
| analogy 名词 | /əˈnæləd͡ʒi/ | 類推 /类推, 類比 /类比 |
| grass 名词 | /ɡɹɑːs/ | цо, 草 |
| physics 名词 | /ˈfɪz.ɪks/ | 物理學 /物理学 |
| fundamental 形容词 | /ˌfʌn.dəˈmɛn.təl/ | 基本 |
| seal 名词 | /siːl/ | 印章, 圖章 /图章 |
| slight 形容词 | /slaɪt/ | 輕微的 /轻微的 |
| mentally 副词 | /ˈmɛntəli/ | 心理上, 精神上 |
| combine 动词 | /kəmˈbaɪn/ | 結合 /结合, 組合 /组合 |
| separation 名词 | /ˌsɛp.əˈɹeɪ.ʃən/ | 分割, 分離 /分离 |
| gasoline 名词 | /ˈɡæs.ə.liːn/ | 汽油 |
| boil 动词 | /bɔɪ(ə)l/ | 煮沸, 煮 |
| nickel 名词 | /ˈnɪk.əl/ | 鎳 /镍 |
| polymer 名词 | /ˈpɑ.lɪ.mɚ/ | 聚合體 /聚合体 |
| kilowatt 名词 | /ˈkɪ.ləˌwɒt/ | 千瓦 |
需要注意的发音
说话人用了 8 次缩略和弱读形式，例如 we're, can't, they'll。请按听到的简短形式来说。
- “sh” 和 “zh” 音: separation /ˌsɛp.əˈɹeɪ.ʃən/, iteration /ˌɪt.əˈɹeɪ.ʃən/
- 长单词——注意重音位置: analogy /əˈnæləd͡ʒi/, fundamental /ˌfʌn.dəˈmɛn.təl/, separation /ˌsɛp.əˈɹeɪ.ʃən/, historically /hɪˈstɔɹɪkli/, aluminum /əˈlu.mɪ.nəm/
中文母语者容易读错的音：
- 词尾辅音 — 要读清楚，后面不要加元音: grass /ɡɹɑːs/, constituent /kənˈstɪtjuənt/, physics /ˈfɪz.ɪks/, slight /slaɪt/, kilowatt /ˈkɪ.ləˌwɒt/
- /r/ 和 /l/ 的区别: principle /ˈpɹɪn.sɪ.pəl/, historically /hɪˈstɔɹɪkli/
- /æ/ — 嘴张大，不要读成 /e/: analogy /əˈnæləd͡ʒi/, gasoline /ˈɡæs.ə.liːn/
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 principle, analogy, grass 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。