Shadowing Practice: Natural Gas 101 - Learn English Speaking with Video
Les maken...
1
Natural gas.
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Natural gas is primarily methane, or CH4, with smaller quantities of other hydrocarbons.
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It was formed millions of years ago
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when dead organisms sunk to the bottom of the ocean and were buried under deposits of sedimentary rock.
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Subject to intense heat and pressure, these organisms underwent a transformation in which they were converted to gas over millions of years.
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Natural gas is found in underground rocks called reservoirs.
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The rocks have tiny spaces called pores that allow them to hold water, natural gas, and sometimes oil.
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The natural gas is trapped underground by impermeable rock called a cap rock and stays there until it is extracted.
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Natural gas can be categorized as dry or wet.
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Dry gas is essentially gas that contains mostly methane.
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Wet gas, on the other hand, contains compounds such as ethane and butane, in addition to methane.
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These natural gas liquids, or NGLs for short, can be separated and sold individually for various uses, such as in refrigerants and to produce products, like plastics.
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Conventional natural gas can be extracted through drilling wells.
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Unconventional forms of natural gas, like shale gas, tight gas, sour gas, and coal bed methane, have specific extraction techniques.
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Natural gas can also be found in reservoirs with oil and is sometimes extracted alongside oil.
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This type of natural gas is called associated gas.
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In the past, associated gas was commonly flared or burned as a waste product, but in most places today it is captured and used.
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Once extracted, natural gas is sent through small pipelines called gathering lines to processing plants, which separate the various hydrocarbons
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and fluids from the pure natural gas to produce what is
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known as pipeline quality dry natural gas before it can be transported.
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Processing involves four main steps to remove the various impurities.
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Oil and condensate removal, water removal, separation of natural gas liquids, sulfur and carbon dioxide removal.
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Gas is then transported through pipelines called feeders to distribution centers where it is stored in underground reservoirs for later use.
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In some cases, gas is liquefied for shipping in large tankers across oceans.
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This type of gas is called liquefied natural gas, or LNG.
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Natural gas is mostly used for domestic or industrial heating and to generate electricity.
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It can also be compressed and used to fuel vehicles and as a feedstock for fertilizers, hydrogen fuel cells, and other chemical processes.
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Natural gas development, especially in the United States, has increased as a result of technological advances in horizontal drilling and hydraulic fracturing.
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When natural gas is burned, there are fewer greenhouse gas emissions and air pollutants when compared to other fossil fuels.
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In fact, when used to produce electricity, natural gas emits approximately half the carbon emissions of coal.
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Despite fewer emissions, natural gas is still a source of CO2.
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In addition, methane is a potent greenhouse gas itself, having nearly 24 times the impact of CO2.
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During the extraction and transportation process, natural gas can escape into the atmosphere and contribute to climate change.
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Natural gas leaks are also dangerous to nearby communities because it is a colorless, odorless, highly toxic and highly explosive gas.
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That's natural gas.
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Woordenschat en spreektips bij deze les
Deze video bevat 35 zinnen en 528 woorden om na te spreken. Het gesproken deel duurt 3:28. De spreker praat in een natuurlijk tempo van ongeveer 153 woorden per minuut, dicht bij een alledaags gesprek. Slechts 75% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden, dus de woordenschat is pittig.
Belangrijke woorden in deze video
15 minder gangbare woorden uit de video, met uitspraak en betekenis:
- methane /ˈmiːθeɪn/ (zelfstandig naamwoord) — methaan. The simplest aliphatic hydrocarbon, CH₄, being a constituent of natural gas, and one of the most abundant greenhouse gases.
- extract /ˈɛkstɹækt/ (zelfstandig naamwoord) — fragment. Something that is extracted or drawn out.
- removal /ɹɪˈmuː.vəl/ (zelfstandig naamwoord) — verwijdering. The process of removing or the fact of being removed.
- underground /ˌʌn.dəɹˈɡɹaʊnd/ (bijvoeglijk naamwoord) — ondergronds. Below the ground; below the surface of the Earth.
- pipeline /ˈpaɪpˌlaɪn/ (zelfstandig naamwoord) — pijpleiding, pijplijn. A conduit made of pipes used to convey water, gas or petroleum, etc.
- reservoir /ˈɹɛz.ə(ɹ).vwɑɹ/ (zelfstandig naamwoord) — reservoir. A place where anything is kept in store.
- emission /ɪˈmɪʃ.ən/ (zelfstandig naamwoord) — uitstoot, emissie. Something which is emitted or sent out; issue.
- liquid /ˈlɪk.wɪd/ (zelfstandig naamwoord) — vloeistof. A substance that is flowing, and keeping no shape, such as water; a substance of which the molecules, while not tending to separate from one another like those…
- fewer /ˈfjuː.ɚ/ — minder. Less; a smaller amount of something non-integral commonly expressed as an integer
- drill /dɹɪl/ (zelfstandig naamwoord) — boor, boormachine. A tool or machine used to remove material so as to create a hole, typically by plunging a rotating cutting bit into a stationary workpiece.
- extraction /ɪkˈstɹækʃən/ (zelfstandig naamwoord) — extractie. The act of extracting or the condition of being extracted.
- greenhouse /ˈɡɹːnˌ(h)aʊs/ (zelfstandig naamwoord) — kas, serre. A building used to grow plants, particularly one with large glass windows or plastic sheeting to trap heat from sunlight even in intemperate seasons or…
- organism /ˈɔɹ.ɡəˌnɪz.əm/ (zelfstandig naamwoord) — organisme. A discrete and complete living thing, such as animal, plant, fungus or microorganism.
- technique /tɛkˈniːk/ (zelfstandig naamwoord) — techniek. The practical aspects of a given art, occupation etc.; formal requirements.
- atmosphere /ˈætməsˌfɪɹ/ (zelfstandig naamwoord) — atmosfeer, dampkring. The gases surrounding the Earth or any astronomical body.
Uitspraak om op te letten
- De “th”-klanken: methane /ˈmiːθeɪn/, gather /ˈɡæðɚ/, ethane /ˈɛθeɪn/
- De klanken “sh” en “zh”: emission /ɪˈmɪʃ.ən/, associate /əˈsoʊʃi.ət/, extraction /ɪkˈstɹækʃən/, capture /ˈkæp.(t)ʃɚ/, essentially /ɪˈsɛnʃəli/
- Lange woorden — let op de klemtoon: electricity /ɪˌlɛkˈtɹɪsɪti/, associate /əˈsoʊʃi.ət/, organism /ˈɔɹ.ɡəˌnɪz.əm/, primarily /ˈpɹaɪ.mə.ɹə.li/, essentially /ɪˈsɛnʃəli/
Zo oefen je met deze video
- Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
- Begin op 0,75× snelheid, spreek zin voor zin na en ga terug naar normale snelheid zodra het makkelijk gaat.
- Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als methane, extract, removal.
Grammatica in deze video
De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:
| Structuur | In de video |
|---|---|
| “Used to” used to + werkwoord — een vroegere gewoonte of toestand die niet meer klopt | used to fuel · used to produce |
| Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doet | was formed · were buried · were converted |
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.