शैडोइंग अभ्यास: Cambridge 10 Test 4 Section 4 Listening - वीडियो के साथ अंग्रेजी बोलना सीखें

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Section 4.
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You will hear a woman talking to a group of first -year science undergraduates about the developing science of nanotechnology.
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First, you have some time to look at questions 31 to 40.
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Thank you. to 40.
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Today we're going to look at an important area of science, namely nanotechnology.
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So what is it?
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Nano means tiny, so it's science and engineering on the scale of atoms and molecules.
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The idea is that by controlling and rearranging atoms, you can literally create anything.
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However, as we'll see, the science of the small has some big implications, affecting us in many ways.
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There's no doubt that nanotechnology promises so much for civilization.
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However, all new technologies have their teething problems.
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And with nanotechnology, society often gets the wrong idea about its capabilities.
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Numerous science fiction books and movies have raised people's fears about nanotechnology,
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with scenarios such as inserting little nanorobots into your body that monitor everything you do without you realising it,
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or self -replicating nanorobots that eventually take over the world.
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So, how do we safeguard such a potentially powerful technology.
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Some scientists recommend that nanoparticles be treated as new chemicals with separate safety tests and clear labelling.
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They believe that greater care should also be taken with nanoparticles in laboratories and factories.
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Others have called for a withdrawal of new nanoproducts such as cosmetics and a temporary halt to many kinds of nanotech research.
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But as far as I'm concerned, there's a need to plough ahead with the discoveries and applications of nanotechnology.
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I really believe that most scientists would welcome a way to guard against unethical uses of such technology.
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We can't go around thinking that all innovation is bad, all advancement is bad.
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As with the debate about any new technology, it is how you use it that's important.
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So, let's look at some of its possible uses.
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Thanks to nanotechnology, there could be a major breakthrough in the field of transportation, with the production of more durable metals.
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These could be virtually unbreakable, lighter and much more pliable, leading to planes that are 50 times lighter than at present.
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Those same improved capabilities will dramatically reduce the cost of travelling into space,
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making it more accessible to ordinary people and opening up a totally new holiday destination.
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In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes.
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We need nanotechnology in order to create a new generation of computers
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that will work even faster and will have a million times more memory, but will be about the size of a sugar cube.
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Nanotechnology could also revolutionise the way that we generate power.
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The cost of solar cells will be drastically reduced, so harnessing this energy will be far more economical than at present.
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But nanotechnology has much wider applications than this and could have an enormous impact on our environment.
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For instance, tiny airborne nanorobots could be programmed to actually rebuild the ozone layer,
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which could lessen the impact of global warming on our planet.
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That's a pretty amazing thought, isn't it?
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On a more local scale,
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this new technology could help with the clean -up of environmental disasters as nanotechnology will allow us to remove oil
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and other contaminants from the water far more effectively.
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And if nanotechnology progresses as expected, as a sort of building block set of about 90 atoms,
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then you could build anything you wanted from the bottom up.
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In terms of production, this means that you only use what you need and so there wouldn't be any waste
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The notion that you could create anything at all has major implications for our health
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It means that we'll eventually be able to replicate anything
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This would have a phenomenal effect on our society
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In time, it could even lead to the eradication of famine through the introduction of machines
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that produce food to feed the hungry.
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But it's in the area of medicine that nanotechnology may have its biggest impact.
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How we detect disease will change as tiny biosensors are developed to analyse tests in minutes rather than days.
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There's even speculation nanorobots could be used to slow the ageing process, lengthening life expectancy.
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As you can see, I'm very excited by the implications that could be available to us in the next few decades.
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Just how long it'll take, I honestly don't know.
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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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Thank you.
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to transfer your answers to the answer sheet.

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इस पाठ की शब्दावली और बोलने के सुझाव

यह स्पीकिंग पाठ वीडियो “Cambridge 10 Test 4 Section 4 Listening” पर आधारित है। सबसे ज़्यादा दोहराए गए शब्द ये हैं: nanotechnology, science, technology, nanorobots, atoms। इस वीडियो में शैडोइंग के लिए 57 वाक्य और 753 शब्द हैं। बोला गया हिस्सा 7:23 लंबा है। वक्ता धीरे बोलता है, लगभग 102 शब्द प्रति मिनट, इसलिए हर ध्वनि की नकल करने का समय मिलता है। 82% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं; बाकी शब्द अभ्यास से पहले देख लेना अच्छा रहेगा।

इस वीडियो की मुख्य शब्दावली

वीडियो के 15 सीखने लायक शब्द, उच्चारण और अर्थ के साथ:

शब्दउच्चारणअर्थ
atom संज्ञा/ˈætəm/परमाणु, अणु
hungry विशेषण/ˈhʌŋ.ɡɹi/भूखा
scientist संज्ञा/ˈsaɪəntəst/वैज्ञानिक, आलिम
capability संज्ञा/ˌkeɪ.pəˈbɪl.ɪ.ti/क्षमता
replicate क्रिया/ˈɹɛplɪkeɪt/अनुकृति करना, अनुकरण करना
temporary विशेषण/ˈtɛmp(əˌɹ)ɛɹi/अस्थायी
discovery संज्ञा/dɪˈskʌv.ɹi/खोज, आविष्कार
fiction संज्ञा/ˈfɪkʃən/काल्पनिक
label संज्ञा/ˈleɪ.bəl/लेबल
ordinary विशेषण/ˈɔɹdɪnɛɹi/साधारण, मामूली
layer संज्ञा/ˈleɪ̯ɚ/परत, तह
sheet संज्ञा/ʃit/पत्र, चद्दर
disaster संज्ञा/dɪˈzɑːs.təː/आपदा, तबाही
monitor संज्ञा/ˈmɑ.nɪ.tɚ/पर्यवेक्षक
innovation संज्ञा/ˌɪn.əˈveɪ.ʃən/नवाचार

इस वीडियो का व्याकरण

वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:

संरचनावीडियो में
Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता हैbe treated · be taken · could be programmed
Present perfect have/has + past participle — बीता हुआ काम जिसका असर अभी भी हैhave raised · have called

ध्यान देने योग्य उच्चारण

वक्ता 10 बार संक्षिप्त रूपों का प्रयोग करता है, जैसे I'm, we'll, can't। इन्हें वैसे ही छोटा बोलें जैसा आप सुनते हैं।

  • “th” की ध्वनियाँ: withdrawal /wɪðˈdɹɔ(ə)l/, breakthrough /ˈbɹeɪk.θɹuː/, lengthen /ˈlɛŋθən/, teethe /tiːð/, unethical /ʌnˈɛθɪkəl/
  • “sh” और “zh” की ध्वनियाँ: implication /ˌɪmpləˈkeɪʃən/, fiction /ˈfɪkʃən/, sheet /ʃit/, potentially /pəˈtɛnʃ(ə)li/, innovation /ˌɪn.əˈveɪ.ʃən/
  • लंबे शब्द — बलाघात सही रखें: implication /ˌɪmpləˈkeɪʃən/, capability /ˌkeɪ.pəˈbɪl.ɪ.ti/, temporary /ˈtɛmp(əˌɹ)ɛɹi/, ordinary /ˈɔɹdɪnɛɹi/, potentially /pəˈtɛnʃ(ə)li/

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: discovery /dɪˈskʌv.ɹi/, innovation /ˌɪn.əˈveɪ.ʃən/, virtually /ˈvɚ.t͡ʃə.wə.li/, withdrawal /wɪðˈdɹɔ(ə)l/, civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/
  • /z/ — इसे “ज” (/dʒ/) न बनाएँ: disaster /dɪˈzɑːs.təː/, civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/, cosmetics /kɒzˈmɛt.ɪks/, ozone /ˈoʊzoʊn/
  • /æ/ — “ऐ” से ज़्यादा खुला: atom /ˈætəm/, laboratory /ˈlæb(ə)ɹəˌtɔɹi/, advancement /ædˈvæns.mənt/, famine /ˈfæm.ɪn/, nanotechnology /ˌnænoʊtɛkˈnɑləd͡ʒi/

इस वीडियो से अभ्यास कैसे करें

  1. पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
  2. सामान्य गति पर एक-एक वाक्य की शैडोइंग करें और हर वाक्य तब तक दोहराएँ जब तक आपकी लय वक्ता से न मिल जाए।
  3. अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर atom, hungry, scientist 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।

शैडोइंग तकनीक: पूरी चरण-दर-चरण गाइड पढ़ें →