Shadowing Practice: What They're Not Telling You About Data Centers - Learn English Speaking with Video
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Vocabulary and speaking notes for this lesson
This speaking lesson is built on the video “What They're Not Telling You About Data Centers”. The speaker keeps coming back to these words: center, electricity, plant. This video has 577 sentences and 7149 words to shadow. The speech runs for 34:26. The speaker talks fast, about 208 words per minute, so expect linked and reduced sounds. 85% of the words are among the 3,000 most common in English; the rest is worth studying before you start.
Key vocabulary in this video
15 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| electricity noun | /ɪˌlɛkˈtɹɪsɪti/ | Originally, a property of amber and certain other nonconducting substances to attract lightweight material when rubbed, or the cause of this property; now… |
| wire noun | /ˈwaɪɚ/ | Metal formed into a thin, even thread, now usually by being drawn through a hole in a steel die. |
| watt noun | /wɑt/ | In the International System of Units, the derived unit of power; the power of a system in which one joule of energy is transferred per second. |
| auction noun | /ˈɔkʃən/ | A public event where goods or property are sold to the highest bidder. |
| server noun | /ˈsɝvɚ/ | A program that provides services to other programs or devices, either in the same computer or over a computer network. |
| void adjective | /vɔɪd/ | Containing nothing; empty; not occupied or filled. |
| microwave noun | /ˈmaɪkɹoʊˌweɪv/ | An electromagnetic wave with wavelength between that of infrared light and radio waves. |
| enormous adjective | /ɪˈnɔː.məs/ | Extremely large; greatly exceeding the common size, extent, etc. |
| interstate adverb | /ˈɪntɚˌsteɪt/ | Crossing states (usually provincial state, but also e.g. multinational sense). |
| acre noun | /ˈeɪ.kɚ/ | An English unit of land area (symbol: a. or ac.) originally denoting a day's ploughing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86… |
| infrastructure noun | /ˈɪnfɹəˌstɹʌkt͡ʃə/ | An underlying base or foundation for a building, organization, or system. |
| protest noun | /ˈpɹoʊ.tɛst/ | A formal objection, especially one by a group. |
| chip noun | /t͡ʃɪp/ | A small piece broken from a larger piece of solid material. |
| utility noun | /juːˈtɪlɪti/ | The state or condition of being useful; usefulness. |
| garage noun | /ɡəˈɹɑʒ/ | A building (or section of a building) used to store a car or cars, tools and other miscellaneous items. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| show up verb | To appear, arrive, or attend, especially suddenly or erratically. |
| add up verb | To take the sum of; to total. |
| build out verb | To develop or expand (a system, structure, project, etc.). |
| figure out verb | To come to understand; to discover or find a solution; to deduce. |
| go up verb | To move upwards. |
| pass through verb | To go through, to travel through, to transit or lie across a place or from one place to another. |
| back down verb | To take a less aggressive position in a conflict than one previously had, or has planned to have. |
| back out verb | To reverse (a vehicle) from a confined space. |
Sentences worth repeating
Short, complete lines from the video that you can reuse in everyday conversation:
- You know what a watt is?
- What do you mean it'll do it for you?
- I don't know what that means.
- How much do we think that will grow?
- How much will you sell it for it?
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Conditional sentences if + clause, will/would + verb — a condition and its result | if you don't mind, I'd like · If you've got an I'll do |
| Present perfect have/has + past participle — a past action that still matters now | has taken · has ever seen · you've heard |
| Passive voice be + past participle — the focus is on what happens, not who does it | are measured · be claimed · was placed |
| Relative clauses who / which + clause — extra information about a person or thing | someone who wants · people who say · allowed, which was |
Pronunciation to watch
The speaker uses 70 contractions and reduced forms, such as don't, they're, you're. Say them the short way, as you hear them.
- The “sh” and “zh” sounds: auction /ˈɔkʃən/, garage /ɡəˈɹɑʒ/, transmission /tɹænsˈmɪʃən/, dish /dɪʃ/, commissioner /kəˈmɪ.ʃə.nəɹ/
- Long words — get the stress right: electricity /ɪˌlɛkˈtɹɪsɪti/, infrastructure /ˈɪnfɹəˌstɹʌkt͡ʃə/, utility /juːˈtɪlɪti/, experiment /ɪkˈspɛɹ.ə.mənt/, differently /ˈdɪf.ə.ɹənt.li/
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 electricity, wire, watt.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.













