Shadowing-Übung: How is glass made? - Englisch Sprechen Lernen mit Video
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Hi, it's Doug.
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I recently came across this unbelievable video.
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It was taken at a hotel in Texas where on the roof of the hotel they have this pool
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that hangs off the edge and it has a glass bottom.
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Look at this.
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Would you go in there?
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Would you trust this glass?
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Someone named Benjamin has a question about glass.
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Let's give him a call now.
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Hi, Doug.
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Hi, Benjamin.
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I have a question for you.
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How is glass made?
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That's a great question.
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It's funny, right?
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Think about just how many objects around you are made of glass.
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Without glass, we'd have no windows, no windshields for our cars, no No drinking glasses or eyeglasses.
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No skyscrapers or smartphones.
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And yet, it's really not obvious at all where glass comes from.
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Like if you're sitting there and you have a table or a desk in front of you like this, that's wood.
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I'm guessing you know that wood comes from a tree.
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Or this statue here is carved from stone.
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You know where that comes from. But glass?
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Glass is a material that has to be made.
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How do they make it?
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Where does it come from?
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Before I say anything more, now would be a good time to pause the video and discuss.
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Okay, you ready?
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Well, believe it or not, Glass is made by taking a bunch of sand and getting it so hot that it melts.
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It's one of the most amazing things to watch how it's made because in order to melt sand, you have to use a special type of oven that can get super hot.
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It's called a furnace or a kiln.
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Here you can see someone loading some sand into the furnace.
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Once it gets hot enough, it will melt or become liquid.
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And when you get something this hot, you can see it glows, just like lava.
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This isn't lava though, it's molten sand.
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And as it cools, it will start to look more familiar to you.
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It becomes solid glass.
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To make a flat sheet of glass, like you'd use for a window, they melt sand until it's molten.
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Then they pour it out and roll it into a flat shape like this, and carefully allow it to cool.
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More fancy objects, like a glass vase, are even more fun to watch.
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This involves a special skill called glass blowing.
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You can see here, it starts with this person taking a big glob of molten sand
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and getting it on the end of a hollow pipe.
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Then she blows air into the pipe.
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You can actually blow a bubble into it, which might end up being the open part of the vase.
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The molten glass has a similar thickness as honey.
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They carefully shape it the way they want it and keep turning it and turning it.
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As it cools, it becomes solid.
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Artists can make amazing sculptures with glass.
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Believe it or not, this artist is making a glass swan.
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So that's how glass is made.
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But it's kind of weird, isn't it?
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I mean, how did people ever discover that if you melt sand, it makes glass?
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We've been making glass for a long time.
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So long ago now that no one knows for sure who was the first person to discover
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that if you melt sand it makes glass.
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But some of the earliest objects made of glass come from ancient Egypt, a place covered in desert sand.
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Could it be that someone long ago had a campfire
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and noticed that the heat of their fire melted the sand beneath it?
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No one knows for sure, but it's possible.
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That's all for this week's question.
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Thanks Benjamin for asking it.
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Now for the next episode, there's a lunar eclipse that's going to happen.
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I reached into my question jar and chose three questions about lunar eclipses that I'm thinking about answering.
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When this video is done playing, you'll get to vote on one.
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You can choose from, what's the difference between a solar and lunar eclipse?
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Why does the moon turn blood red during a lunar eclipse?
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Or where does the word eclipse come from?
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So submit your vote when the video's over.
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I wanna hear from all of you watching.
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There are mysteries all around us.
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Stay curious and see you next week.
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Wortschatz und Sprechhinweise zu dieser Lektion
Diese Sprechübung auf Niveau B1 basiert auf dem Video „How is glass made?“. Diese Wörter kommen am häufigsten vor: glass, sand, melt, eclipse, molten. Dieses Video enthält 72 Sätze und 728 Wörter zum Nachsprechen. Der gesprochene Teil dauert 4:28. Der Sprecher spricht in natürlichem Tempo, etwa 163 Wörter pro Minute, ähnlich wie im Alltagsgespräch. 82 % der Wörter gehören zu den 3.000 häufigsten im Englischen; den Rest solltest du dir vor dem Üben ansehen. 14 der 72 Sätze sind Fragen – gut, um Frageintonation und kurze Antworten zu üben.
Wichtiger Wortschatz in diesem Video
Die 15 anspruchsvollsten Wörter aus dem Video, mit Aussprache und Bedeutung:
| Wort | Aussprache | Bedeutung |
|---|---|---|
| melt Verb | /mɛlt/ | schmelzen, schmelzen lassen |
| eclipse Substantiv | /ɪˈklɪps/ | Finsternis, Eklipse |
| lunar Adjektiv | /ˈlunɚ/ | lunar |
| vase Substantiv | /veɪ̯s/ | Vase |
| furnace Substantiv | /ˈfɝnɪs/ | Ofen, Heizung |
| lava Substantiv | /ˈlɑvə/ | Lava |
| pipe Substantiv | /ˈpaɪp/ | Flöte |
| campfire Substantiv | /ˈkæmpˌfaɪ̯ɚ/ | Lagerfeuer |
| eyeglass Substantiv | /ˈaɪˌɡlæs/ | Augenglas |
| skyscraper Substantiv | /ˈskaɪˌskɹeɪpɚ/ | Wolkenkratzer, Hochhaus |
| windshield Substantiv | /wɪnˈʃiːld/ | Windschutzscheibe |
| thickness Substantiv | /ˈθɪknəs/ | Dicke |
| swan Substantiv | /swɑn/ | Schwan, Schwänin |
| glow Verb | /ɡloʊ/ | glühen |
| sculpture Substantiv | /ˈskʌlpt͡ʃɚ/ | Skulptur |
Phrasal Verbs, die du hören wirst
| Wort | Bedeutung |
|---|---|
| come across Verb | wirken, vorkommen |
| end up Verb | sich herausstellen, am Ende irgendwo / etwas sein |
Sätze zum Wiederholen
Kurze, vollständige Sätze aus dem Video, die du im Alltag wiederverwenden kannst:
- Would you go in there?
- Would you trust this glass?
- Let's give him a call now.
- We've been making glass for a long time.
Grammatik in diesem Video
Die Strukturen, die der Sprecher am häufigsten verwendet, mit den genauen Worten aus dem Video:
| Struktur | Im Video |
|---|---|
| Passiv be + Partizip Perfekt – wichtig ist, was geschieht, nicht wer es tut | was taken · are made · is carved |
| Superlativ the -est / the most … – das Höchste oder Niedrigste einer Gruppe | the most amazing · the earliest |
| Present Continuous am/is/are + -ing – etwas, das gerade jetzt oder zurzeit passiert | you're sitting · I'm guessing · is making |
| Zukunft mit „will“ will + Verb – eine Entscheidung, ein Versprechen oder eine Vorhersage | will melt · will start · you'll get |
Aussprache, auf die du achten solltest
Der Sprecher verwendet 10 Kurzformen und abgeschwächte Formen, zum Beispiel I'm, isn't, wanna. Sprich sie in der kurzen Form, so wie du sie hörst.
- Die „th“-Laute: thickness /ˈθɪknəs/, beneath /bɪˈniːθ/
Laute, die Deutschsprachigen schwerfallen:
- /w/ — mit runden Lippen, nicht wie das deutsche „w“ (/v/): windshield /wɪnˈʃiːld/, swan /swɑn/
- Stimmhafter Auslaut — /b/, /d/, /g/, /z/, /v/ am Wortende nicht verhärten: windshield /wɪnˈʃiːld/, pause /pɔːz/, involve /ɪnˈvɑlv/
- /æ/ — offener als „ä“: campfire /ˈkæmpˌfaɪ̯ɚ/, eyeglass /ˈaɪˌɡlæs/, statue /ˈstæt͡ʃu/
So übst du mit diesem Video
- Höre dir das ganze Video einmal an, ohne zu sprechen, und notiere die Wörter, die du nicht kennst.
- Beginne mit 0,75-facher Geschwindigkeit, sprich Satz für Satz nach und wechsle zur normalen Geschwindigkeit, sobald es leichtfällt.
- Nimm dich auf und vergleiche mit dem Original; achte dabei auf Wörter wie melt, eclipse, lunar.
Was ist die Shadowing-Technik?
Shadowing ist eine wissenschaftlich fundierte Sprachlerntechnik, die ursprünglich für die professionelle Dolmetscherausbildung entwickelt und durch den Polyglotten Dr. Alexander Arguelles populär gemacht wurde. Die Methode ist einfach aber wirkungsvoll: Du hörst englisches Audio von Muttersprachlern und wiederholst es sofort laut — wie ein Schatten, der dem Sprecher mit nur 1–2 Sekunden Verzögerung folgt. Anders als passives Hören oder Grammatikübungen zwingt Shadowing dein Gehirn und deine Mundmuskulatur, gleichzeitig echte Sprachmuster zu verarbeiten und zu reproduzieren. Studien zeigen, dass es Aussprachegenauigkeit, Intonation, Rhythmus, verbundene Sprache, Hörverständnis und Sprechflüssigkeit signifikant verbessert — was es zu einer der effektivsten Methoden für die IELTS Speaking-Vorbereitung und reale englische Kommunikation macht.