शैडोइंग अभ्यास: How is glass made? - वीडियो के साथ अंग्रेजी बोलना सीखें
अभ्यास मोड चुनें
हर मोड पूरी स्क्रीन का अभ्यास कक्ष खोलता है।
72 वाक्य
यदि वाक्य बहुत छोटे या लंबे हों, तो समायोजित करने के लिए Edit पर क्लिक करें।
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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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इस पाठ की शब्दावली और बोलने के सुझाव
यह B1 स्तर का स्पीकिंग पाठ वीडियो “How is glass made?” पर आधारित है। सबसे ज़्यादा दोहराए गए शब्द ये हैं: glass, sand, melt, eclipse, molten। इस वीडियो में शैडोइंग के लिए 72 वाक्य और 728 शब्द हैं। बोला गया हिस्सा 4:28 लंबा है। वक्ता लगभग 163 शब्द प्रति मिनट की स्वाभाविक गति से बोलता है, जो रोज़मर्रा की बातचीत के करीब है। 82% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं; बाकी शब्द अभ्यास से पहले देख लेना अच्छा रहेगा। इसके 72 वाक्यों में से 14 प्रश्न हैं, इसलिए यह प्रश्नों के लहजे और छोटे जवाबों के अभ्यास के लिए अच्छा है।
इस वीडियो की मुख्य शब्दावली
वीडियो के 15 सबसे कठिन शब्द, उच्चारण और अर्थ के साथ:
| शब्द | उच्चारण | अर्थ |
|---|---|---|
| eclipse संज्ञा | /ɪˈklɪps/ | ग्रहण |
| lunar विशेषण | /ˈlunɚ/ | चंद्र |
| vase संज्ञा | /veɪ̯s/ | गुलदान |
| furnace संज्ञा | /ˈfɝnɪs/ | भट्ठा, भट्ठी |
| lava संज्ञा | /ˈlɑvə/ | लावा |
| skyscraper संज्ञा | /ˈskaɪˌskɹeɪpɚ/ | गगनचुंबी इमारत, गगनचुंबी भवन |
| thickness संज्ञा | /ˈθɪknəs/ | मोटाई |
| swan संज्ञा | /swɑn/ | हंस |
| glow क्रिया | /ɡloʊ/ | चमकना |
| sculpture संज्ञा | /ˈskʌlpt͡ʃɚ/ | शिल्पकला, प्रतिमा |
| hollow विशेषण | /ˈhɑloʊ/ | खोखला |
| oven संज्ञा | /ˈʌ.vn̩/ | भट्ठी, चूल्हा |
| smartphone संज्ञा | /ˈsmɑɹtfoʊn/ | स्मार्टफ़ोन, स्मार्टफोन |
| statue संज्ञा | /ˈstæt͡ʃu/ | प्रतिमा, मुर्ती |
| pour क्रिया | /poɹ/ | बहना |
दोहराने लायक वाक्य
वीडियो के छोटे, पूरे वाक्य जिन्हें आप रोज़ की बातचीत में इस्तेमाल कर सकते हैं:
- 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.
इस वीडियो का व्याकरण
वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:
| संरचना | वीडियो में |
|---|---|
| Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता है | was taken · are made · is carved |
| Superlatives the -est / the most … — समूह में सबसे ऊपर या नीचे | the most amazing · the earliest |
| Present continuous am/is/are + -ing — जो अभी या इन दिनों हो रहा है | you're sitting · I'm guessing · is making |
| “will” से भविष्य will + क्रिया — फ़ैसला, वादा या अनुमान | will melt · will start · you'll get |
ध्यान देने योग्य उच्चारण
वक्ता 10 बार संक्षिप्त रूपों का प्रयोग करता है, जैसे I'm, isn't, wanna। इन्हें वैसे ही छोटा बोलें जैसा आप सुनते हैं।
- “th” की ध्वनियाँ: thickness /ˈθɪknəs/, beneath /bɪˈniːθ/
हिंदी भाषियों के लिए मुश्किल ध्वनियाँ:
- /v/ और /w/ का फ़र्क़ — /v/ में ऊपर के दाँत निचले होंठ को छूते हैं, /w/ में होंठ गोल होते हैं: vase /veɪ̯s/, lava /ˈlɑvə/, windshield /wɪnˈʃiːld/, swan /swɑn/, oven /ˈʌ.vn̩/
- शब्द की शुरुआत में s + व्यंजन — पहले “इ” न जोड़ें: skyscraper /ˈskaɪˌskɹeɪpɚ/, swan /swɑn/, sculpture /ˈskʌlpt͡ʃɚ/, smartphone /ˈsmɑɹtfoʊn/, statue /ˈstæt͡ʃu/
- /æ/ — “ऐ” से ज़्यादा खुला: campfire /ˈkæmpˌfaɪ̯ɚ/, eyeglass /ˈaɪˌɡlæs/, statue /ˈstæt͡ʃu/
इस वीडियो से अभ्यास कैसे करें
- पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
- 0.75× गति से शुरू करें, एक-एक वाक्य की शैडोइंग करें, और सहज लगने पर सामान्य गति पर लौटें।
- अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर eclipse, lunar, vase जैसे शब्दों पर ध्यान दें।
शैडोइंग तकनीक क्या है?
शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।