Pratica di Shadowing: Lighthouse Lab – Floating and Sinking - Impara a parlare inglese con i video
Creazione lezione...
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The Lighthouse Lab I'm going to go ahead and put it in the middle of the middle.
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Thank you.
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Oh, hey there.
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If you've ever taken a bath before, you'll have noticed that some things Like this rubber duck, Stay on top of the water.
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They float.
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Other things, like this bath plug, sink to the bottom of the bath.
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They sink in water. So what causes this?
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Well, the simple answer has to do with density.
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Density is the amount of mass an object has in a given volume.
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The more mass an object has in a given volume, the more dense it is.
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Objects that are more dense than water will sink to the bottom.
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But objects that are less dense than water will float on the top.
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Our rubber duckies volume is mostly made up of air which is less dense than water.
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That's why it floats on top.
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Take a look at these objects.
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Let's make predictions about which ones will float or sink when placed in this bath of water.
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Thank you.
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This is a ball of modelling clay.
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Hmm, it feels pretty heavy.
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I think it might sink.
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What do you think?
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Yep.
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It's definitely more dense than water.
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Thank you.
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What about this metal coin?
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Metal is pretty heavy.
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I think this is definitely going to sink in water.
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Yep.
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Definitely more dense than water.
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This polystyrene ball is very light.
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I think this is definitely less dense than the water.
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What do you think?
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Yep.
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It floats.
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What about this ping pong ball?
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It feels very light too.
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I think it's less dense than water.
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Yep.
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It floats.
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What about this glass marble?
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Hmm.
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Yep, definitely more dense than the water.
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This is a wooden block.
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Hmm.
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I'm not sure about this one.
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What do you think?
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Wow, it floats.
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So the wooden block is less dense than water.
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That was fun, wasn't it, rubber ducky?
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What's that?
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You want to go for another swim?
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Here you go.
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See you next time in the Lighthouse Lab.
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Music.
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Vocabolario e note di pronuncia per questa lezione
Questo video contiene 54 frasi e 348 parole da ripetere con lo shadowing. Il parlato dura 3:17. Chi parla lo fa lentamente, circa 106 parole al minuto, quindi c’è tempo per imitare ogni suono. Solo il 79% delle parole rientra nelle 3.000 più comuni dell’inglese, quindi il lessico è impegnativo.
Vocaboli chiave di questo video
15 parole meno comuni del video, con pronuncia e significato:
- dense /ˈdɛns/ (aggettivo) — denso. Having relatively high density.
- float /fləʊt/ (verbo) — galleggiare. To be supported by a fluid of greater density (than the object).
- sink /ˈsɪŋk/ (verbo) — affondare, sprofondare. To descend or submerge (or to cause to do so) into a liquid or similar substance.
- bath /bɑːθ/ (sostantivo) — bagno, vasca da bagno. A tub or pool which is used for bathing: bathtub.
- rubber /ˈɹʌbɚ/ (sostantivo) — gomma. Pliable material derived from the sap of the rubber tree; a hydrocarbon biopolymer of isoprene.
- density /ˈdɛn.sə.ti/ (sostantivo) — densità. A measure of the mass of matter contained by a unit volume.
- wooden /ˈwʊdn̩/ (aggettivo) — di legno, ligneo. Made of wood.
- painful /ˈpeɪn.fl̩/ (aggettivo) — doloroso. Causing pain or distress, either physical or mental.
- clay /kleɪ/ (sostantivo) — argilla, creta. A mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
- duck /dʌk/ (sostantivo) — anatra. Any of certain aquatic birds of the family Anatidae, having a flat bill and webbed feet, distinguished from swans and geese by generally being smaller and…
- swim /swɪm/ (verbo) — nuotare, natare. To move through the water, without touching the bottom; to propel oneself in water by natural means.
- coin /ˈkoɪ̯n/ (sostantivo) — moneta. A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle.
- plug /plʌɡ/ (sostantivo) — spina. A pronged connecting device which fits into a mating socket, especially an electrical one.
- marble /ˈmɑɹ.bəl/ (sostantivo) — marmo. A metamorphic rock of crystalline limestone.
- prediction /pɹɪˈdɪkʃən/ (sostantivo) — predizione, previsione. A statement of what will happen in the future.
I phrasal verb che sentirai
- go ahead /ˌɡoʊ əˈhɛd/ (verbo) — procedere, andare avanti. To proceed with; to begin.
- go for (verbo) — tentare, provare. To try for, to attempt to reach.
- look at (verbo) — guardare. To observe or watch.
Pronuncia a cui fare attenzione
Chi parla usa 5 contrazioni e forme ridotte, come I'm, wasn't, you'll. Pronunciale nella forma breve, così come le senti.
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Fai shadowing frase per frase a velocità normale, ripetendo ognuna finché il tuo ritmo coincide con quello di chi parla.
- Registrati e confronta con l’originale, facendo attenzione a parole come dense, float, sink.
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| Comparativi -er than / more … than — confrontare due cose | more dense than · less dense than |
| Futuro con “will” will + verbo — una decisione, una promessa o una previsione | you'll have · will sink · will float |
| Futuro con “going to” be going to + verbo — un piano o qualcosa che si vede arrivare | I'm going to go · is definitely going to sink |
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.