Shadowing Practice: Nanotechnology: technology on a small scale | IELTS LISTENING TEST | SECTION-4 - Learn English Speaking with Video
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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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Now listen carefully and answer questions 31 to 40.
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Today we're going to look at an important area of science, namely nanotechnology. 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 nano robots 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.
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All advancement is bad.
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As with a 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 In terms of production, this means that you only use what you need.
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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 analyze tests in minutes rather than days.
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There's even speculation nanorobots could be used to slow the aging 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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Bu dersin kelimeleri ve konuşma notları
Bu videoda gölgeleme çalışması için 55 cümle ve 749 kelime var. Konuşma bölümü 6:52 sürüyor. Konuşmacı yavaş konuşuyor, dakikada yaklaşık 109 kelime; her sesi taklit etmek için zamanınız var. Kelimelerin %82’i İngilizcede en sık kullanılan 3.000 kelime arasında; geri kalanına başlamadan önce bakmakta fayda var.
Bu videodaki önemli kelimeler
Videodan daha az kullanılan 15 kelime, telaffuzu ve anlamıyla:
- atom /ˈætəm/ (isim) — atom. The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
- hungry /ˈhʌŋ.ɡɹi/ (sıfat) — aç. Affected by hunger; having the physical need for food.
- scientist /ˈsaɪəntəst/ (isim) — âlim, âlime. One whose activities make use of the scientific method to answer questions regarding the measurable universe. A scientist may be involved in original research…
- replicate /ˈɹɛplɪkeɪt/ (fiil) — replike etmek. To make a copy (replica) of.
- temporary /ˈtɛmp(əˌɹ)ɛɹi/ (sıfat) — geçici. Not permanent; existing only for a period or periods of time.
- carefully /ˈkɛɹf(ə)li/ (zarf) — dikkatlice, itinayla. With care; attentively, circumspectly.
- discovery /dɪˈskʌv.ɹi/ (isim) — keşif. Something discovered.
- fiction /ˈfɪkʃən/ (isim) — kurgu. Literary type using invented or imaginative writing, instead of real facts, usually written as prose.
- label /ˈleɪ.bəl/ (isim) — etiket. A small ticket or sign giving information about something to which it is attached or intended to be attached.
- ordinary /ˈɔɹdɪnɛɹi/ (sıfat) — sıradan, olağan. Having regular jurisdiction; now only used in certain phrases.
- layer /ˈleɪ̯ɚ/ (isim) — katman, tabaka. A single thickness of some material covering a surface.
- disaster /dɪˈzɑːs.təː/ (isim) — afet, felaket. An unexpected natural or man-made catastrophe of substantial extent causing significant physical damage or destruction, loss of life or sometimes permanent…
- monitor /ˈmɑ.nɪ.tɚ/ (isim) — ekran. Someone who watches over something; a person in charge of something or someone.
- innovation /ˌɪn.əˈveɪ.ʃən/ (isim) — inovasyon, yenilik. The act of innovating; the introduction of something new, in customs, rites, etc.
- laboratory /ˈlæb(ə)ɹəˌtɔɹi/ (isim) — laboratuvar. A room, building or institution equipped for scientific research, experimentation or analysis.
Duyacağınız deyimsel fiiller
- look at (fiil) — bakmak. To observe or watch.
Dikkat edilecek telaffuzlar
Konuşmacı I'm, we'll, can't gibi kısaltılmış biçimleri 10 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.
- “th” sesleri: withdrawal /wɪðˈdɹɔ(ə)l/, breakthrough /ˈbɹeɪk.θɹuː/, lengthen /ˈlɛŋθən/, teethe /tiːð/, unethical /ʌnˈɛθɪkəl/
- “sh” ve “zh” sesleri: implication /ˌɪmpləˈkeɪʃən/, fiction /ˈfɪkʃən/, potentially /pəˈtɛnʃ(ə)li/, innovation /ˌɪn.əˈveɪ.ʃən/, destination /dɛstɪˈneɪʃən/
- Uzun kelimeler — vurguyu doğru yere koyun: implication /ˌɪmpləˈkeɪʃən/, capability /ˌkeɪ.pəˈbɪl.ɪ.ti/, temporary /ˈtɛmp(əˌɹ)ɛɹi/, ordinary /ˈɔɹdɪnɛɹi/, potentially /pəˈtɛnʃ(ə)li/
Bu videoyla nasıl çalışılır
- Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
- Normal hızda cümle cümle tekrar edin; ritminiz konuşmacıyla aynı olana kadar her cümleyi yineleyin.
- Kendinizi kaydedin ve orijinaliyle karşılaştırın; atom, hungry, scientist gibi kelimelere özellikle dikkat edin.
Bu videodaki dil bilgisi
Konuşmacının en çok kullandığı yapılar, videodaki sözcüklerin aynısıyla:
| Yapı | Videoda |
|---|---|
| Edilgen yapı be + fiilin üçüncü hâli — kimin yaptığı değil, ne olduğu önemli | be treated · be taken · could be programmed |
| Present perfect have/has + fiilin üçüncü hâli — geçmişte olan ama şimdi de önemli olan bir eylem | have raised · have called |
Gölgeleme Tekniği Nedir?
Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.