Shadowing Practice: Why do snakes shed their skin? - Learn English Speaking with Video
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(phone ringing) - Hi, it's Doug.
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This is my family's pet tortoise, Mr. Tortoise.
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I know, not the most creative name in the world.
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Like other tortoises and turtles, as Mr. Tortoise grows, he sometimes sheds little bits of skin, even layers of these little plates on his back.
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Someone named Molly, has a question about another kind of reptile that does this.
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Let's give Molly a call now.
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(phone ringing) - Hi, Doug. - Hi, Molly.
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- I have a question for you, why does snakes shed their skin?
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- Ooh, that's a great question.
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Walking around in a forest, you might even find something like this, an entire skin left behind by a snake after it shed.
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It's not common to see a wild snake in the act of shedding its skin, but people who have pet snakes have filmed lots of videos of this.
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Like, check this out.
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This is a type of snake called a Milk snake.
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This one is named Candy Cane and Candy Cane here is in the process of shedding his skin with a little help from his caretaker.
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Shedding starts at the snake's head and can take hours or days for the snake's old skin to be fully left behind.
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And it's not just snakes that do this.
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Insects do too, like dragonflies for example.
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You can sometimes find the shed skins left behind by them, sitting on the tops of tall grass, or in many parts of North America, you can find the shed skin left behind by this, a cicada.
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Wow, look at that.
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Spiders do this too, like this tarantula.
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Even some ocean creatures do this.
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Crustaceans like this crab, as it slowly backs out of its old shell, shedding and leaving it behind.
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Whoa, look at that.
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Why do all of these animals do this?
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Well, one clue is how often they do it.
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All of these animals shed their skin a lot more when they're young, when they're growing.
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Some baby snakes will shed their skin every two weeks.
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Gradually, as they get bigger and bigger, they do it less often.
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Instead of every two weeks, it becomes more like two to four times per year.
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So shedding their skin seems to have something to do with how they grow, but wait a second, because we grow too and we don't shed our skins like a snake or an insect.
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Can you imagine?
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Would our parents save it and show our friends?
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Aww, come look at the skin you shed when you were a little baby.
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Aww, it's so cute.
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Oh, that would be so weird.
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And it's not just us either, lots of other animals don't seem to shed their skin as they grow, dogs, cats, hamsters, why do animals like snakes and insects shed their skin, but other living things don't?
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What ideas do you have?
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Now would be a good time to pause the video and discuss.
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Okay, you ready?
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Well, actually it turns out we do shed our skin, not our entire skin all at one time, the way a snake or an insect or a crab does, but as our bodies grow, we do grow new skin and we shed little bits of old skin as we're growing.
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Usually these little bits of skin we shed are so small, we don't tend to notice them, but sometimes, like if you wear dark clothing, you actually can notice little flecks of it here and there.
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It's no big deal, we all do this and when you think about the fact that it means your body's growing, it's actually kind of interesting.
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So then, why do these other animals shed their entire skin all at once?
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That's something that's hard to know for sure, but it's probably something that's helpful to them.
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I asked this question to some scientists who study these animals.
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Some of them think that one possibility is that their skin is less flexible than ours.
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Animals like insects, spiders, and crabs have a tough outer layer of skin that acts like a shield.
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We call it an exoskeleton.
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With such tough, rigid skin, it might be that being able to shed the entire skin every few months is what allows these animals to grow.
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There could be another reason too.
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A lot of animals often have tiny creatures living on them, tiny things like ticks, fleas, lice, sometimes these little animals even carry diseases.
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Scientists have pointed out that when snakes shed their skin, it leaves lots of these little pests behind.
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Shedding their skin gets rid of these pests.
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So maybe shedding their entire skin all at once is a special feature that some animals have to get rid of pests.
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Now, that said, animals that don't shed their entire skin can still get ticks and lice on them so they have to rely on other ways to get rid of these.
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Like these giraffes who rely on birds to help pick them clean of any little pests, or these snow monkeys in Japan, they're carefully grooming each other to remove any tiny pests that might be hanging out in their fur.
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So in summary, lots of animals shed their skin to make room as they grow.
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Some of them do it all at once, some not.
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Shedding their skin all at once has an interesting plus.
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You don't have to take a shower.
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That's all for this week's question.
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Thanks, Molly, for asking it.
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Now for the next episode I reached into my question jar and picked out three questions sent in to me that I'm thinking about answering next.
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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, why do we have leap years?
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Who invented the piano?
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Or how do traffic lights work?
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So submit your vote when the video is 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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Bu dersin kelimeleri ve konuşma notları
Bu videoda gölgeleme çalışması için 71 cümle ve 999 kelime var. Konuşma bölümü 6:22 sürüyor. Konuşmacı dakikada yaklaşık 157 kelimeyle, günlük konuşmaya yakın doğal bir hızda konuşuyor. Kelimelerin %83’i İngilizcede en sık kullanılan 3.000 kelime arasında; geri kalanına başlamadan önce bakmakta fayda var.
Bu videodaki önemli kelimeler
Videodan öğrenmeye değer 15 kelime, telaffuzu ve anlamıyla:
| Kelime | Telaffuz | Anlam |
|---|---|---|
| snake isim | /sneɪk/ | yılan |
| insect isim | /ˈɪn.sɛkt/ | böcek, haşere |
| pest isim | /pɛst/ | haşere |
| crab isim | /kɹæb/ | yengeç |
| layer isim | /ˈleɪ̯ɚ/ | katman, tabaka |
| spider isim | /ˈspaɪ̯dɚ/ | örümcek |
| scientist isim | /ˈsaɪəntəst/ | âlim, âlime |
| tick isim | /tɪk/ | kene, sakırga |
| clothing isim | /ˈkloʊðɪŋ/ | giysi, giyim kuşam |
| carefully zarf | /ˈkɛɹf(ə)li/ | dikkatlice, itinayla |
| curious sıfat | /ˈkjʊɹ.i.əs/ | meraklı |
| mystery isim | /ˈmɪs.t(ə.)ɹi/ | gizem, esrâr |
| shell isim | /ʃɛl/ | kabuk |
| grass isim | /ɡɹɑːs/ | ot, çimen |
| summary isim | /ˈsʌm.ə.ɹi/ | özet, fezleke |
Dikkat edilecek telaffuzlar
Konuşmacı don't, they're, I'm gibi kısaltılmış biçimleri 13 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.
- “sh” ve “zh” sesleri: shell /ʃɛl/, shield /ˈʃild/, crustacean /kɹʌsˈteɪʃən/
Bu videoyla nasıl çalışılır
- Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
- 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
- Kendinizi kaydedin ve orijinaliyle karşılaştırın; snake, insect, pest gibi kelimelere özellikle dikkat edin.
Bu videodaki dil bilgisi
Konuşmacının en çok kullandığı yapılar, videodaki sözcüklerin aynısıyla:
| Yapı | Videoda |
|---|---|
| Present perfect have/has + fiilin üçüncü hâli — geçmişte olan ama şimdi de önemli olan bir eylem | have filmed · have pointed |
| “might / may” ile olasılık might/may + fiil — mümkün ama kesin olmayan bir şey | might even find · might be |
| Present continuous am/is/are + -ing — şu anda ya da bu sıralar olan bir şey | they're growing · we're growing · I'm thinking |
| Zorunluluk: must / have to / need to bir şeyin gerekli olduğunu söylemek | have to get · have to rely · have to take |
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.