Shadowing Practice: 15 Things You Didn't Know About Nikola Tesla - Learn English Speaking with Video
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Vocabulary and speaking notes for this lesson
This video has 159 sentences and 2049 words to shadow. The speech runs for 15:46. The speaker talks at a steady 130 words per minute, a comfortable pace for shadowing. Only 80% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
15 less common words from the video, with pronunciation and meaning:
- invention /ɪnˈvɛnʃən/ (noun) — Something invented.
- patent /ˈpeɪtənt/ (noun) — An official document granting an appointment, privilege, or right, or some property or title; letters patent.
- wireless /ˈwaɪ(jə)ɹ.ləs/ (adjective) — Not having any wires.
- statue /ˈstæt͡ʃu/ (noun) — A three-dimensional work of art, usually representing a person or animal, usually created by sculpting, carving, molding, or casting.
- genius /ˈd͡ʒin.jəs/ (noun) — Someone possessing extraordinary intelligence or skill; especially somebody who has demonstrated this by a creative or original work in science, music, art…
- convince /kənˈvɪns/ (verb) — To make someone believe, or feel sure about something, especially by using logic, argument or evidence.
- bonus /ˈbəʊ.nəs/ (noun) — Something extra that is good; an added benefit.
- electricity /ɪˌlɛkˈtɹɪsɪti/ (noun) — Originally, a property of amber and certain other nonconducting substances to attract lightweight material when rubbed, or the cause of this property; now…
- monitor /ˈmɑ.nɪ.tɚ/ (noun) — Someone who watches over something; a person in charge of something or someone.
- gambling /ˈɡæm.bl̩.ɪŋ/ (noun) — An activity characterized by a balance between winning and losing that is governed by skill and/or chance, usually with money wagered on the outcome.
- subscribe /səbˈskɹaɪb/ (verb) — To write (one’s name) at the bottom of a document; to sign (one's name).
- inspire /ɪnˈspaɪə(ɹ)/ (verb) — To infuse into the mind; to communicate to the spirit; to convey, as by a divine or supernatural influence; to disclose preternaturally; to produce in, as by…
- billionaire /ˌbɪl.jəˈnɛɚ/ (noun) — Somebody whose wealth is at least one billion (10⁹) currency units (usually understood to exclude holders of hyperinflated currencies).
- millionaire /ˌmɪl.i.əˈnɛə(ɹ)/ (noun) — Somebody whose wealth is at least one million (10⁶) currency units (usually understood to exclude holders of hyperinflated currencies).
- calculus /ˈkæl.kjə.ləs/ (noun) — Any formal system in which symbolic expressions are manipulated according to fixed rules.
Phrasal verbs you will hear
- live in (verb) — To reside on the premises of one's employer (used especially of domestic staff such as nannies, cooks, maids, etc.)
- bring in (verb) — To move something indoors, or into an area.
- stay in (verb) — To remain at home.
- back in (verb) — To reverse a vehicle into a space.
- bring down (verb) — To make (a ruler or government) lose their position of power.
- get back (verb) — Return to where one came from.
- go back to (verb) — To stem from; to originate in.
- know about (verb) — To have positive inclinations regarding (someone or something); to have no doubts regarding (someone or something).
Pronunciation to watch
The speaker uses 18 contractions and reduced forms, such as didn't, wasn't, we're. Say them the short way, as you hear them.
- The “th” sounds: smooth /smuːð/, gather /ˈɡæðɚ/
- The “sh” and “zh” sounds: invention /ɪnˈvɛnʃən/, reputation /ˌɹɛpjʊˈteɪʃən/, flash /flæʃ/, capture /ˈkæp.(t)ʃɚ/, ownership /ˈoʊnɚʃɪp/
- Long words — get the stress right: electricity /ɪˌlɛkˈtɹɪsɪti/, millionaire /ˌmɪl.i.əˈnɛə(ɹ)/, reputation /ˌɹɛpjʊˈteɪʃən/, electrical /ɪˈlɛktɹɪkəl/, laboratory /ˈlæb(ə)ɹəˌtɔɹi/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
- Record yourself and compare with the original, paying attention to words like invention, patent, wireless.
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| “Used to” used to + verb — a past habit or state that is no longer true | used to work · used to cook |
| Passive voice be + past participle — the focus is on what happens, not who does it | was born · was held · can be booked |
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.





















