跟读练习: These Solar-Powered Carnivorous Flatworms Divide and Conquer | Deep Look - 通过视频学习英语口语
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64 句
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1
Those aren't cornflakes.
2
This rock is absolutely covered with tiny marine flatworms called acyles.
3
They're not just an animal.
4
They're also kind of a plant.
5
And they're practically immortal.
6
They use simple eyes called ocelli to seek out the sunniest spots on tropical coral reefs,
7
where they spread themselves out like beach blankets.
8
But they don't just lay around sunbathing all day.
9
Aseals are also skilled hunters.
10
They catch prey by engulfing them with their body and jamming them into their mouth.
11
You can see their meal trying in vain to escape.
12
Also, they don't have a butt.
13
Their poop just goes right back out through their mouth.
14
So you wouldn't want to kiss one.
15
They aren't just hunters.
16
These acyls are gardeners, too.
17
See those green dots?
18
Those are algae.
19
And those reddish cells belong to the acyl itself.
20
When the sun hits our flatworm friend, the algae inside produce sugars through photosynthesis.
21
This is a waste.
22
Researchers think they share those sugars with their host.
23
In return, the acyl provides its, um, waste, which is kind of like fertilizer for the algae.
24
And the acyl protects its houseguests.
25
Researchers think the acyls pack toxic chemicals in those reddish cells.
26
So predators tend to leave them alone.
27
Without its algae, the acyl would eventually die, even if it had plenty of prey to eat.
28
Scientists call a creature like this a Holobiant — a single being made up of two or more completely different species.
29
In this case, a solar -powered predator.
30
But that's not even the weirdest thing about them.
31
Researchers at Stanford University and the University of San Francisco are studying A -seals because of how they regenerate.
32
And to do that?
33
It'll be okay.
34
I promise.
35
You'd think getting cut in half would be a bad thing.
36
But within minutes, the wounded front half seals up.
37
In a couple days, it'll have a whole new tail. And the backside?
38
It doesn't just make a new head.
39
It makes two!
40
But it's hard to share one body with two heads.
41
So each half eventually pulls away from the other.
42
Where there was once one acyl, now there are three.
43
What seemed like a moment of doom was actually one of rebirth.
44
But they don't need the researcher's scalpel.
45
Aseals can drop their tail and clone themselves on their own.
46
The Aseal and its algae can multiply themselves like this over and over, indefinitely, making them functionally immortal.
47
Aseals can do this because they're packed with stem cells, which morph into any body part the Aseal needs to regrow.
48
And since they can't hunt until they grow new heads, they're extra reliant on the energy they get from their algae.
49
In these desperate times, the acyls even eat some of their algae.
50
Sorry.
51
Every relationship has its challenges.
52
But the acyl and its algae have a deal.
53
By taking advantage of each one's abilities, they're greater than the sum of their parts.
54
Hey, it's Laura.
55
Guess who else could be considered a holobiant?
56
You.
57
You've got a whole zoo of bacteria and other living things inside your gut that are vital to a healthy immune system, digestion, and even mood.
58
And if you want to keep
59
Deep Look healthy, support our show on Patreon.
60
For a very limited time, if you become a $10 a month Patreon supporter, you'll get a fabulous
61
Deep Look pint glass, and at $5 a month, a special Deep Look sticker.
62
We can't make these videos without you.
63
Join us on Patreon now.
64
Link in the description.
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本课的词汇与口语要点
这节口语课以视频“These Solar-Powered Carnivorous Flatworms Divide and Conquer”为素材。 视频中反复出现的词有：acyl, algae, Aseal, Patreon, researchers。 这段视频共有 64 个句子、591 个单词可供跟读。 讲话部分时长为 5:03。 说话人语速平稳，每分钟约 117 个词，很适合跟读。 只有 76% 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 15 个值得学习的单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| researcher 名词 | /ˈɹiˌsɝ.t͡ʃɚ/ | 研究員 /研究员, 研究者 |
| hunter 名词 | /ˈhʌntɚ/ | 獵犬 /猎犬 |
| tail 名词 | /ˈteɪ̯l/ | йиба, 尾 |
| seal 名词 | /siːl/ | 印章, 圖章 /图章 |
| prey 名词 | /pɹeɪ/ | 獵物 /猎物 |
| immortal 形容词 | /ɪˈmɔɹtəl/ | 不朽的 |
| predator 名词 | /ˈpɹɛd.ə.tɚ/ | 掠食者, 天敵 /天敌 |
| meal 名词 | /ˈmiːl/ | 餐, 飯 /饭 |
| mood 名词 | /muːd/ | 心情, 情緒 /情绪 |
| skill 名词 | /skɪl/ | 技巧, 技能 |
| belong 动词 | /bɪˈlɒŋ/ | 屬於 /属于 |
| vital 形容词 | /ˈvaɪtəl/ | 生命的 |
| desperate 形容词 | /ˈdɛs.p(ə.)ɹɪt/ | 絕望 /绝望 |
| butt 名词 | /bʌt/ | 自身 |
| toxic 形容词 | /ˈtɒk.sɪk/ | 有毒的 |
需要注意的发音
说话人用了 20 次缩略和弱读形式，例如 they're, don't, aren't。请按听到的简短形式来说。
- “th” 音: photosynthesis /ˌfoʊ.toʊˈsɪn.θə.sɪs/, rebirth /ɹiːˈbɜːθ/, sunbathe /ˈsʌnbeɪð/
- 长单词——注意重音位置: practically /ˈpɹæk.tɪ.k(ə.)li/, indefinitely /ɪnˈdɛfɪnɪtli/, photosynthesis /ˌfoʊ.toʊˈsɪn.θə.sɪs/, regenerate /ɹiːˈd͡ʒɛnəɹeɪt/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: vital /ˈvaɪtəl/, vain /veɪn/
- 词尾辅音 — 要读清楚，后面不要加元音: mood /muːd/, desperate /ˈdɛs.p(ə.)ɹɪt/, butt /bʌt/, toxic /ˈtɒk.sɪk/, wound /ˈwund/
- /r/ 和 /l/ 的区别: immortal /ɪˈmɔɹtəl/, practically /ˈpɹæk.tɪ.k(ə.)li/, tropical /ˈtɹɑ.pɪ.kəl/, coral /ˈkɔɹəl/, flatworm /ˈflæt.wəɹm/
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。
- 用正常速度逐句跟读，每句重复到你的节奏与说话人一致为止。
- 录下自己的声音并与原声对比，特别注意 researcher, hunter, tail 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。