Shadowing Practice: Transforming grass into building materials | Vietnam Today - Learn English Speaking with Video
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In Europe, the green economy comprises of renewable energy,
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electric vehicles and often specific types of markets such as building materials.
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In Belgium, a company is transforming excess grass from riverbanks,
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canals, parks and urban areas into bio-insulation panels for homes and buildings.
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Let's find out more in a report from the Vietnam Television Correspondent Team in Europe.
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Instead of being discarded, grass cut from canal banks,
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river banks, parks or urban areas in Belgium is being processed into a new production line.
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At a Belgian company's factory,
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this grass is used to produce bio-insulating panels for the construction industry.
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Notably, this is not grass grown on agricultural land.
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The company does not use cultivated land,
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does not need irrigation and does not use fertilizers or pesticides to produce the raw material.
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When trucks carrying dry grass arrive at the factory,
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the material is checked for moisture content,
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then put through a cleaning system to remove dust and impurities such as wood, stone or metal.
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The grass is brought here.
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We work in bulk in bulk
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so there's a truck coming with a walking floor who pushes all the grass behind us
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and after that is done the whole building behind me is used to treat the grass
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so we remove all the dust and fine particles of the grass
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and then we also remove all the pieces of wood
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stone metal that we can also find in the grass we do this
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because the grass that we are using is not coming from agricultural land
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so it can contain other pollution that we don't want into your final product.
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After cleaning, the grass is mixed with recycled jute fibers from old coffee and cocoa bags and a binder.
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According to the company, the finished material consists of approximately 70% grass,
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20% recycled jute fibers and 10% binder.
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The fiber mixture then passes through a conveyor belt and is fed into an oven at approximately 160 degrees Celsius.
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Upon exiting the oven, the fibers have formed flat sheets which are cooled,
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measured for thickness, cut to standard dimensions and package for delivery to the construction site.
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So we just cooked the panel so the raw material enters the oven and the oven is at 160 degrees.
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So it's the same temperature as to cook a fish.
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So we have a low temperature and low energy process
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and once it gets out of the oven we are cooling the panel
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and then it's ready to be cut into the the right dimension.
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Not only does this production line create new materials from biological sources,
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but it is also designed to minimize waste.
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The excess material from cutting is crushed and returned to the production line.
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The company also encourages customers to bring leftover materials back to the factory for recycling.
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At the construction site, grass-based insulation panels are installed in walls and ceilings,
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providing both thermal and sound insulation.
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In Europe, this is a concrete example of the bio-economy utilizing local by-products,
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partially replacing traditional materials and reducing the ecological footprint of the construction industry.
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The story in Belgium shows that the green economy is not only about advanced technology,
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sometimes it starts with a simple idea,
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turning ordinary local resources such as roadside or cannon grass into products that create both economic and environmental value.
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Thế Dũng, reporting from Europe for Vietnam Today.
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Woordenschat en spreektips bij deze les
Deze spreekles op niveau B2 is gebaseerd op de video “Transforming grass into building materials”. Deze woorden komen het vaakst terug: grass, material, oven, panel, fiber. Deze video bevat 47 zinnen en 564 woorden om na te spreken. Het gesproken deel duurt 4:01. De spreker praat in een gelijkmatig tempo van ongeveer 140 woorden per minuut, prettig om te shadowen. Slechts 76% 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 |
|---|---|---|
| oven zelfstandig naamwoord | /ˈʌ.vn̩/ | oven |
| recycle werkwoord | /ɹəˈsaɪkəl/ | recycleren, recyclen |
| binder zelfstandig naamwoord | /ˈbaɪndɚ/ | binder |
| jute zelfstandig naamwoord | /d͡ʒuːt/ | jute |
| dimension zelfstandig naamwoord | /daɪˈmɛn.ʃən/ | dimensie, afmeting |
| cultivate werkwoord | /ˈkʌltɪveɪt/ | telen, verbouwen |
| discard werkwoord | /dɪsˈkɑɹd/ | verwerpen, afdanken |
| impurity zelfstandig naamwoord | /ɪmˈpjɝɪti/ | onzuiverheid, onreinheid |
| insulate werkwoord | /ˈɪnsʊleɪt/ | isoleren |
| leftover bijvoeglijk naamwoord | restant, kliekje | |
| pesticide zelfstandig naamwoord | /ˈpɛstɪsaɪd/ | pesticide, verdelgingsmiddel |
| riverbank zelfstandig naamwoord | /ˈɹɪv.ɚˌbæŋk/ | oever |
| roadside zelfstandig naamwoord | /ˈɹoʊdsaɪd/ | stoeprand, berm |
| footprint zelfstandig naamwoord | /ˈfʊtpɹɪnt/ | voetafdruk |
| comprise werkwoord | /kəmˈpɹaɪz/ | bevatten, omvatten |
Phrasal verbs die je zult horen
| Woord | Betekenis |
|---|---|
| find out werkwoord | ontdekken, onderzoeken |
| put through werkwoord | doorverbinden |
Uitspraak om op te letten
- De “th”-klanken: thickness /ˈθɪknəs/, thermal /ˈθɜːməl/
- De klanken “sh” en “zh”: insulation /ˌɪnsəˈleɪʃən/, dimension /daɪˈmɛn.ʃən/, irrigation /ˌɪɹəˈɡeɪʃən/, crush /kɹʌʃ/, partially /ˈpɑɹʃəli/
- Lange woorden — let op de klemtoon: insulation /ˌɪnsəˈleɪʃən/, irrigation /ˌɪɹəˈɡeɪʃən/, ecological /ˌiːkəˈlɒd͡ʒɪkl̩/
Klanken die Nederlandstaligen lastig vinden:
- Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: discard /dɪsˈkɑɹd/, pesticide /ˈpɛstɪsaɪd/, roadside /ˈɹoʊdsaɪd/, comprise /kəmˈpɹaɪz/, utilize /ˈjuː.tɪ.laɪz/
- /æ/ — opener dan de Nederlandse “e”: riverbank /ˈɹɪv.ɚˌbæŋk/, cannon /ˈkæn.ən/, transform /tɹænsˈfɔɹm/
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 oven, recycle, binder.
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.