تدريب Shadowing: Dig Deep, Power a City - تعلم التحدث بالإنجليزية عبر الفيديو
جارٍ إنشاء الدرس...
1
Let's punch a hole in the Earth to harvest power.
2
Deep underground, leftover heat from our planet formation and radioactive decay heats up the surrounding rocks and water.
3
We can use this heat to warm our homes or generate electricity.
4
Dig a few meters down and you should hit a stable ground temperature.
5
Then simply send water along an underground pipe and turn on your heat pump to produce warm air for your home.
6
But why stop there?
7
Digging a few kilometers deeper is tough, especially through hard, igneous rock.
8
But if you pick a spot where the rock is warmed by magma itself, you can reach temperatures high enough to make steam, drive a turbine, and produce enough electricity to power a city.
9
So, what's the catch?
10
Well, as you pump water down to tap that heat, you've got to keep an eye on the pressure.
11
Too high, and it can widen fissures and cause small earthquakes.
12
Too low, worse if it's mixed with toxic compounds.
13
But if you can get the steam safely back up to the surface, you can enjoy a steady stream of renewable energy from right under your feet.
📺 نفس القناة
C118
Your Skeleton Is Electric
IELTS PrepTOEFL PrepUniversity Students
C1113
Could Humans Evolve Flight?
IELTS PrepTOEFL PrepUniversity Students
C1132
Can Earth Run Out of Water?
IELTS PrepTOEFL PrepUniversity Students
C131
Your Brain Peaked at Birth
University StudentsWorking Adults
C132
Why Ebola Keeps Coming Back
University StudentsWorking Adults
C1554
What If You Never Slept?
IELTS PrepTOEFL PrepUniversity Students
C17
3 Reasons Why Nuclear Energy Is Terrible! 2/3
IELTS PrepTOEFL PrepUniversity Students
B28
Would You Upload Your Mind?
IELTS PrepTOEFL PrepUniversity Students
C11
Your Brain on Magic Mushrooms
IELTS PrepTOEFL PrepUniversity Students
C164
What the Flu Does to Your Body
IELTS PrepTOEFL PrepUniversity Students
C12
Is War Over? — A Paradox Explained
IELTS PrepTOEFL PrepUniversity Students
C15
How ADHD Medication Works
Daily ConversationUniversity StudentsWorking Adults
C11
The Most Complex Language in the World
IELTS PrepTOEFL PrepUniversity Students
B25
Let’s Steal a New Moon
IELTS PrepTOEFL PrepUniversity Students
C1758
How Stress Changes Your Brain
IELTS PrepTOEFL PrepUniversity Students
C13
What Happens AFTER Nuclear War?
IELTS PrepTOEFL PrepUniversity Students
C11
3 Reasons Why Nuclear Energy Is Awesome! 3/3
IELTS PrepTOEFL PrepUniversity Students
B252
Can We Stop the Extinction?
University StudentsWorking Adults
B26
YOU Own the Moon. And Mars. And Venus.
IELTS PrepTOEFL PrepUniversity Students
C1209
The True Cost of War
IELTS PrepTOEFL PrepUniversity Students
✨ فيديو موصى به
B226 جمل
China Wrapped Entire Mountains in Solar Panels — And That's Just the Start
IELTS PrepTOEFL PrepUniversity Students
B221
43 جمل
RE2 Unit 12B
IELTS PrepTOEFL PrepUniversity Students
B2104
19 جمل
Man of the future | Nikola Tesla | edit
IELTS PrepTOEFL PrepCambridge Exam Prep
B25
227 جمل
When Heat Becomes "Unsurvivable": How Do We Adapt? | CNA Correspondent
IELTS PrepTOEFL PrepBusiness English
B23
18 جمل
Exploding Eggshells is Actually Useful?
IELTS PrepTOEFL PrepUniversity Students
B29
38 جمل
RE3 Unit 7B
IELTS PrepTOEFL PrepBusiness English
B22
124 جمل
What Happens To Nuclear Waste?
IELTS PrepTOEFL PrepUniversity Students
C11
55 جمل
How Pumped Storage Power Plants Work (Hydropower)
IELTS PrepTOEFL PrepUniversity Students
B221
7 جمل
How To Keep a Skyscraper From Falling Over
American AccentIELTS PrepTOEFL PrepUniversity Students
B23
54 جمل
Can You Define Energy?
IELTS PrepTOEFL PrepUniversity Students
Vocabulary and speaking notes for this lesson
This B2 speaking lesson is built on the video “Dig Deep, Power a City”. This video has 13 sentences and 194 words to shadow. The speech runs for 1:03. The speaker talks fast, about 184 words per minute, so expect linked and reduced sounds. Only 77% of the words are among the 3,000 most common in English, so the vocabulary is demanding. 2 of its 13 sentences are questions, so it is good practice for question intonation and short answers.
Key vocabulary in this video
The 12 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| fissure noun | /ˈfɪʃ.ɚ/ | A long, narrow crack or opening made by breaking or splitting, especially in rock or earth. |
| igneous adjective | /ˈɪɡ.ni.əs/ | Pertaining to or having the nature of fire; containing fire; resembling fire. |
| leftover adjective | Remaining; left behind; extra; odd; in reserve. | |
| turbine noun | /ˈtɜː.baɪn/ | Any of various rotary machines that use the kinetic energy of a continuous stream of fluid (a liquid or a gas) to turn a shaft. |
| radioactive adjective | /ˌɹeɪdioʊˈæktɪv/ | Exhibiting radioactivity. |
| surround verb | /səˈɹaʊnd/ | To encircle something or simultaneously extend in all directions. |
| decay noun | /diˈkeɪ/ | Rot; any processes or result of organic matter being gradually decomposed, especially by microbial action. |
| renewable adjective | /ɹɪˈnu.ə.bl̩/ | Able to be renewed; capable of renewal. |
| harvest noun | /ˈhɑɹ.vəst/ | The process of gathering the ripened crop; harvesting. |
| meter noun | /ˈmitəɹ/ | A device that measures things. |
| earthquake noun | /ˈɝθkweɪk/ | A shaking of the ground, caused by volcanic activity or movement around geologic faults. |
| compound noun | /ˈkɑmpaʊnd/ | Anything made by combining several things. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| heat up verb | To heat, to cause to become hotter. |
القواعد في هذا الفيديو
أكثر التراكيب التي يستخدمها المتحدث، مع العبارات نفسها من الفيديو:
| التركيب | في الفيديو |
|---|---|
| المبني للمجهول be + اسم المفعول — التركيز على ما يحدث لا على من يفعله | is warmed |
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like fissure, igneous, leftover.
ما هي تقنية التظليل الصوتي؟
التظليل الصوتي (Shadowing) تقنية تعلم لغة مدعومة علمياً، طُورت أصلاً لتدريب المترجمين الفوريين المحترفين. الطريقة بسيطة لكنها قوية: تستمع لصوت إنجليزي أصلي وتكرره فوراً بصوت عالٍ — كظل يتبع المتحدث بتأخير 1-2 ثانية. تُظهر الأبحاث تحسناً كبيراً في دقة النطق والتنغيم والإيقاع وربط الأصوات والاستماع والطلاقة.