Shadowing Practice: 🔥The Argus System - Đề thi IELTS LISTENING kèm đáp án - transcript - Learn English Speaking with Video
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I would like to tell you how the Argus computerised photography system has helped marine researchers.
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Then I shall talk a bit about sand collecting.
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Well, Argus is the system Dr. Rob Holman developed
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when he was working at a research pier on the coast of North Carolina about 20 years ago.
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This pier stretches out over the water and it's the longest research pier in the world, with an observation tower on the end of it.
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The researchers there make precise measurements of how the sand moves about under the waves,
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This research is critical to the study of beach erosion in places where the coastline is being worn away.
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The Argus system helps to solve the difficulties encountered by these researchers.
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The system correlates the data from under the water with what Dr Holman gets from his fixed camera,
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which is mounted above the water on the pier and uses time -lapse photography.
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Some of Dr. Holman's results have changed the way people understand how sand moves.
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To quote S.
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Jeffries Williams, a coastal geologist with the United States Geological Survey, the system is "a critical piece of new technology."
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And the Argus system allows us to quantify
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and document visually the changes to the coast on a variety of different time frames.
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A lot of these take place when there is a storm, or at other times when it is difficult to have people out on the beach making observations and taking measurements.
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Up to now, Argus installations have been installed in places in Oregon, California, Hawaii, England, the Netherlands,
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Australia, New Zealand, Spain, Italy and Brazil, as well as in North Carolina.
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Now, I'd like to introduce Dr. Holman's sand collection.
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He started collecting sand in the 1980s and he still collects it now, even though he has around a thousand samples.
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They come from his travels and from geologists and amateurs all over the world.
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and the collection includes sand from each continent, including Antarctica.
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People send him sand in envelopes, plastic bags, paper towels and all sorts.
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Each is stored in a glass jar, which Dr. Holman labels by latitude and longitude of its origin.
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as well as he can work them out.
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Sometimes the information is a bit sketchy.
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Anyway, it's mainly geology students at the university who study his collection.
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and they can learn a lot from it.
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For instance, one set of tubes displays sand from the east coast of the US,
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so you can see that the sand gets lighter and finer from north to south.
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By the time a grain of sand eventually washes up on a beach in Florida, at the southern end of that journey, it has been battered by waves for a long time.
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So the grains are fine and rounded, because most of the time sand is not stationary on the beach.
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OK, so if you'd like to collect sand and maybe even send some to Dr. Holman, how should you go about it?
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Well, the list of equipment is very short and easy to find, but you should keep a supply when you're travelling,
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as you never know when you'll come across an interesting sand sample.
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One really handy thing for digging sand, especially if it's hard or frozen, is a spoon.
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"'It's perfect for that.' If you're travelling by air, it'll have to be plastic, but metal is preferable, as plastic tends to break.
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You need something to put the samples in that is damp proof and easy to carry.
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You can just use plastic bags, but you need to record the location and date on the bag, so you must also have a permanent marker with you,
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because you can never assume you will remember where you gathered a sample from later on, And you don't want it to rub off before you get home.
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And that's about all you need in the field to collect sound.
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When you get home, your samples should be logged in a notebook or computer.
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You need to note the location
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and be really specific as to exactly whereabouts on the beach you gathered your sample: low tide mark,
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under cliff area, etc. Then you store your sample.
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You want to keep everything in good condition and avoid contamination.
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So first you make absolutely sure that each sample is perfectly dry You don't need any complicated apparatus for this.
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You can just air it out on layers of newspaper, which is suitably absorbent.
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Most people find that's the best way.
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Then, lastly, but this is really important, before there can be any chance of confusing this later sample with another,
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you put it in a clean small bag or a jar and you must stick an identification label on straight away.
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Some people put one inside as well, in case the outer label falls off, but that's up to you.
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Well, that's about all you need to know to get started as a sand collector.
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Any questions?
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That is the end of section 4.
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You now have half a minute to check your answers.
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Woordenschat en spreektips bij deze les
Deze spreekles op niveau B2 is gebaseerd op de video “🔥The Argus System - Đề thi IELTS LISTENING kèm đáp án - transcript”. Deze woorden komen het vaakst terug: sand, sample, Argus, beach, Holman. Deze video bevat 57 zinnen en 847 woorden om na te spreken. Het gesproken deel duurt 6:05. De spreker praat in een gelijkmatig tempo van ongeveer 139 woorden per minuut, prettig om te shadowen. Slechts 81% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden, dus de woordenschat is pittig.
Belangrijke woorden in deze video
De 15 moeilijkste woorden uit de video, met uitspraak en betekenis:
| Woord | Uitspraak | Betekenis |
|---|---|---|
| pier zelfstandig naamwoord | /pɪɹ/ | pier |
| researcher zelfstandig naamwoord | /ˈɹiˌsɝ.t͡ʃɚ/ | onderzoeker |
| geologist zelfstandig naamwoord | /d͡ʒiˈɑːlədʒɪst/ | geoloog, geologe |
| measurement zelfstandig naamwoord | /ˈmɛʒ.ə.mənt/ | meting |
| observation zelfstandig naamwoord | /ˌɑbzɚˈveɪʃn̩/ | waarneming |
| grain zelfstandig naamwoord | /ɡɹeɪn/ | koren, graan |
| absorbent bijvoeglijk naamwoord | /æbˈsɔɹ.bn̩t/ | absorberend, wateropnemend |
| correlate werkwoord | /ˈkɔɹəleɪt/ | correleren, in wederkerige betrekking staan |
| longitude zelfstandig naamwoord | /ˈlɑnd͡ʒəˌtud/ | lengtegraad |
| preferable bijvoeglijk naamwoord | /ˈpɹɛf.(ə.)ɹə.b(ə)l/ | verkieslijk, preferabel |
| quantify werkwoord | /ˈkwɑn.tɪˌfaɪ/ | kwantificeren |
| coastline zelfstandig naamwoord | kustlijn | |
| whereabouts zelfstandig naamwoord | /ˌ(h)wɛəɹəˈbaʊts/ | verblijfplaats |
| batter werkwoord | /ˈbætə/ | inslaan, rammen |
| latitude zelfstandig naamwoord | /ˈlætɪtud/ | breedtegraad |
Phrasal verbs die je zult horen
| Woord | Betekenis |
|---|---|
| come across werkwoord | overkomen |
Grammatica in deze video
De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:
| Structuur | In de video |
|---|---|
| Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doet | being worn · is mounted · have been installed |
| Present perfect have/has + voltooid deelwoord — iets uit het verleden dat nu nog telt | has helped · have changed · have been installed |
Uitspraak om op te letten
De spreker gebruikt 8 samentrekkingen en verkorte vormen, zoals don't, you're, I'd. Spreek ze kort uit, zoals je ze hoort.
- De klanken “sh” en “zh”: measurement /ˈmɛʒ.ə.mənt/, observation /ˌɑbzɚˈveɪʃn̩/, stationary /ˈsteɪʃəˌnɛɹi/, erosion /ɪˈɹəʊʒən/, contamination /kənˌtæm.əˈneɪ.ʃən/
- Lange woorden — let op de klemtoon: geologist /d͡ʒiˈɑːlədʒɪst/, preferable /ˈpɹɛf.(ə.)ɹə.b(ə)l/, stationary /ˈsteɪʃəˌnɛɹi/, visually /ˈvɪzju.əli/, contamination /kənˌtæm.əˈneɪ.ʃən/
Klanken die Nederlandstaligen lastig vinden:
- Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: longitude /ˈlɑnd͡ʒəˌtud/, latitude /ˈlætɪtud/, confuse /kənˈfjuːz/, tide /taɪd/, freeze /ˈfɹiːz/
- /æ/ — opener dan de Nederlandse “e”: absorbent /æbˈsɔɹ.bn̩t/, batter /ˈbætə/, latitude /ˈlætɪtud/, damp /ˈdæmp/, lastly /ˈlæstli/
- /w/ — met ronde lippen: quantify /ˈkwɑn.tɪˌfaɪ/, whereabouts /ˌ(h)wɛəɹəˈbaʊts/
Zo oefen je met deze video
- Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
- Spreek zin voor zin na op normale snelheid en herhaal elke zin tot je ritme gelijk is aan dat van de spreker.
- Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als pier, researcher, geologist.
Wat is de Shadowing-techniek?
Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.