跟读练习: What If We Cool Down the Sun? - 通过视频学习英语口语
选择练习模式
每种模式都会打开全屏练习室。
16 句
如果句子过短或过长，请点击 Edit 进行调整。
1
Let's make the sun 30 % cooler.
2
Turning down the sun's heat makes it 75 % dimmer.
3
That's because hot objects lose their power much faster than temperature.
4
As it cools, the sun emits fewer photons.
5
These have longer wavelengths and less energy, turning our sun orangey -red.
6
The drop in solar power would be the least of our worries.
7
Plants usually feed on red and blue light, but this visible light gets weaker and the now dominant infrared light tends to bounce off.
8
Vegetation as we know it ceases to exist, with severe consequences for everything from insects to crops.
9
We could probably survive for a year or two before stockpiles ran out, but we'd freeze long before that.
10
Within a week, temperatures on the surface drop by around 10 degrees, though the oceans hold on to some stored heat.
11
But after a year, the average temperature falls well below zero,
12
Ice spreads from the poles and glaciers begin to form on almost every mountain range as the entire ocean surface freezes over.
13
And as ice and snow reflect more sunlight back into space than soil, it gets even colder.
14
Geothermal areas like
15
Iceland with 38 -degree thermal springs are now the only safe spots on this snowball Earth.
16
On the bright side, you'll never need another pair of shades.
同频道
1
How Does Ketamine Work?
C11
What Actually Happens When You Die?
Daily ConversationUniversity StudentsWorking Adults
C15
How Caffeine Works
Daily ConversationUniversity Students
C255
We Made A New Channel!
University StudentsWorking Adults
C15
We Traveled Back in Time. Now Physicists Are Angry.
Daily ConversationUniversity StudentsWorking Adults
C121
Queen Ant Clones Another Species
Daily ConversationUniversity Students
C113
Would You Upload Your Mind?
Daily ConversationUniversity StudentsWorking Adults
C111
You Will Only Like Half of This Video
Daily ConversationUniversity StudentsWorking Adults
B26
YOU Own the Moon. And Mars. And Venus.
Daily ConversationUniversity StudentsWorking Adults
C1149
How Antidepressants Work
Daily ConversationUniversity StudentsWorking Adults
B238
Your Brain Peaked at Birth
Daily ConversationUniversity StudentsWorking Adults
C212
Let’s Travel to The Most Extreme Place in The Universe
IELTS PrepTOEFL PrepUniversity Students
C174
We Won’t Explore the Galaxy...
IELTS PrepTOEFL PrepUniversity Students
B26
Dozens of Nukes Are Missing. Why? HOW?
Daily ConversationWorking Adults
C1153
Something Travels Faster than Light
University StudentsWorking Adults
C14
How to Destroy a Black Hole
University StudentsWorking Adults
B22
Do we Need Nuclear Energy to Stop Climate Change?
Daily ConversationWorking Adults
C182
The Deadliest Thing in Your Kitchen
University StudentsWorking Adults
B214
The Injection That Stops HIV
IELTS PrepTOEFL PrepUniversity Students
C114
Let’s Tie All Planets Together
University StudentsWorking Adults
本课的词汇与口语要点
这节口语课以视频“What If We Cool Down the Sun?”为素材。 这段视频共有 16 个句子、215 个单词可供跟读。 讲话部分时长为 1:17。 说话人语速自然，每分钟约 167 个词，接近日常对话。 只有 80% 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 |
|---|---|---|
| freeze 动词 | /ˈfɹiːz/ | 凍結 /冻结, 凍 /冻 |
| soil 名词 | /sɔɪl/ | 土壤, 泥土 |
| reflect 动词 | /ɹɪˈflɛkt/ | 反映, 反射 |
| visible 形容词 | /ˈvɪzɪb(ə)l/ | 看得見 /看得见, 可看見的 /可看见的 |
| fewer | /ˈfjuː.ɚ/ | 較少 /较少, 更少 |
| dominant 形容词 | /ˈdɑmənənt/ | 主要 |
| pole 名词 | /pəʊl/ | 極 /极 |
| shade 名词 | /ʃeɪd/ | 陰影 /阴影 |
| crop 名词 | /kɹɑp/ | 作物 |
| consequence 名词 | /ˈkɑn.sɪ.kwəns/ | 後果 /后果, 結果 /结果 |
| cease 动词 | /sis/ | 停止, 停 |
| sunlight 名词 | /ˈsʌnˌlaɪt/ | 陽光 /阳光, 日光 |
| vegetation 名词 | /ˌvɛd͡ʒəˈteɪʃən/ | 植被, 草木 |
| insect 名词 | /ˈɪn.sɛkt/ | 昆蟲 /昆虫, 蟲子 /虫子 |
| infrared 形容词 | /ˌɪnfɹəˈɹɛd/ | 紅外 /红外 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| turn down 动词 | 拒絕 /拒绝, 回絕 /回绝 |
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 |
|---|---|
| 比较级 -er than / more … than — 比较两个事物 | faster than |
| “will” 表将来 will + 动词 — 决定、承诺或预测 | you'll never need |
需要注意的发音
- “th” 音: thermal /ˈθɜːməl/, wavelength /ˈweɪvˌlɛŋ(k)θ/
- “sh” 和 “zh” 音: shade /ʃeɪd/, vegetation /ˌvɛd͡ʒəˈteɪʃən/, glacier /ˈɡleɪ.ʃɚ/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: visible /ˈvɪzɪb(ə)l/, vegetation /ˌvɛd͡ʒəˈteɪʃən/, wavelength /ˈweɪvˌlɛŋ(k)θ/
- 词尾辅音 — 要读清楚，后面不要加元音: freeze /ˈfɹiːz/, reflect /ɹɪˈflɛkt/, dominant /ˈdɑmənənt/, shade /ʃeɪd/, crop /kɹɑp/
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 freeze, soil, reflect 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。