ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: Why Are We the Only Human Species Left? What happened to others...
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101 ประโยค
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For most of human history, we were not alone.
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If you could travel back 50 ,000 years, you'd find a planet where several different kinds of humans existed at the same time.
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Some looked a lot like us.
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Others were built completely differently: shorter, heavier, shaped by climates and landscapes that would break a modern person.
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One species lived on a remote island and evolved to be barely three feet tall.
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Another is so mysterious that nearly everything we know about them comes from a single finger bone.
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And then there was us, Homo sapiens.
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Today, we are the only human species left.
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were the strongest or the smartest or the ones who'd been here longest, just the ones who are still here.
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Which raises a question that doesn't have a clean answer.
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What happened to everyone else?
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What actually happened was slower and messier.
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To understand how that played out, you have to start with the species that lasted the longest, which is Homo erectus.
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Homo erectus showed up around 2 million years ago, and to put that number in perspective, everything modern humans have ever accomplished, every city we've built, every war we've fought,
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every language we've spoken, all of it fits inside the last few thousand years. to look recognizably human.
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They have long legs, shorter arms, a frame designed for walking and running over open ground.
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They were almost certainly the first human species to leave Africa and spread into other parts of the world, which means they figured out how to survive in environments they'd never evolved for.
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Their brains were smaller than ours, but significantly larger than anything that came before them, and they developed stone tools that barely changed over hundreds of thousands of years.
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That sounds like a lack of imagination, but it's actually the improve on it, but by their final chapter, the world had left them behind.
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Their last populations ended up on the island of Java in Indonesia, cut off from the mainland, with no way to reach other groups and no new territory to move into.
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The forests they'd always hunted in started shrinking, the animals they depended on became harder to find, and without enough people or enough space to recover,
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a species that had survived for close to two million years slowly ran out of options.
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Their last fossils date to around 110 ,000 years ago.
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Homo erectus was gone.
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Let's talk about the Neanderthals, probably the most misunderstood species in human history.
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For decades, they were written off as dim, brutish cavemen.
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That image was always wrong.
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And the more we learn about them, the more wrong it becomes.
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Neanderthals were built for survival in ways that are hard to overstate.
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Their bodies were compact and powerful: wide chests, thick bones, strong arms.
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Their faces had heavy brow ridges and large noses that warmed cold air before it reached their lungs.
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Their brains were, on average, slightly bigger than ours.
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large dangerous animals at close range, which is why their skeletons show injury patterns similar to modern rodeo riders.
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They know how to control fire, made sophisticated tools, and there's growing evidence that they buried their dead with care.
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Neanderthals lived across Europe and Western Asia for more than 300 ,000 years.
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But around 45 ,000 years ago, Homo sapiens began moving into the same regions.
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For a few thousand years, both species lived side by side.
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And DNA evidence shows they even had children together.
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challenges for Neanderthals.
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Both species hunted many of the same animals and relied on the same land for survival.
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Homo sapiens lived in larger groups and had wider social networks, allowing them to share resources, knowledge, and support over greater distances.
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However, Neanderthals generally lived in smaller, more isolated groups, making it harder for them to share resources and recover from difficult times.
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At the same time, the climate kept changing.
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Cold periods and warmer periods constantly reshaped the environment, making survival populations became smaller and more isolated,
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and their DNA shows very low genetic diversity, suggesting their numbers were already declining.
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By around 40 ,000 years ago, Neanderthals disappeared from the fossil record.
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They weren't wiped out by a single event.
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Instead, a combination of competition, climate change, and shrinking populations gradually pushed them toward extinction.
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Now let's talk about the Denisovans.
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They were different from every other species on this list, because we can barely see them.
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The entire discovery began with a single finger from a cave in the Altai Mountains of Siberia, a fragment so small it could sit in the palm of your hand.
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But when scientists extracted DNA from it, the results didn't match any known human species, not Neanderthals, not Homo sapiens,
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and not anything else scientists had seen before.
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It was something else entirely: a previously unknown branch of the human family
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that had been hiding in the genetic record all along.
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Since that discovery, only a handful of additional remains have turned up, which include some teeths, a piece of jawbone found high on the Tibetan plateau, and not much else.
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And yet their genetic shadow is enormous.
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Denisovan ancestry shows up in modern populations across parts of Asia and Oceania, with some Melanesian groups carrying as much as 6 % Denisovan DNA.
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One that allows them to function at extreme altitudes where most people's bodies would start to fail.
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A species we can barely find in the ground is still shaping how living humans survive in thin air.
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But as a living population, the Denisovans faded out somewhere around 30 ,000 years ago.
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Their range may have been vast, but their numbers were likely thin.
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And thin populations rarely hold on when the world starts shifting underneath them.
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And then there's one of the strangest chapters in human history.
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of a human species unlike anything seen before.
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They stood only about a meter tall and had brains roughly the size of a grapefruit.
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At first, many scientists were skeptical.
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Some argued the bones belonged to modern humans with a disease or developmental disorder.
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But as more evidence was uncovered, it became clear that these remains belonged to a completely separate species: Homo floresiensis.
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This tiny human lived on Flores alongside Komodo dragons,
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giant storks, When species are isolated for long periods, they can change dramatically.
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Large animals may become smaller, while small animals can grow larger.
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Homo floresiensis may be one of the most remarkable examples of this process in the entire human family.
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Their fossils date from about 100 ,000 to 60 ,000 years ago, and stone tools suggest they may have survived until around 50 ,000 years ago.
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What's interesting is that modern humans were arriving in the region at roughly the same time.
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We don't know exactly what happened.
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massive catastrophe to disappear.
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Sometimes, a small population facing new pressures simply runs out of time.
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So, why are we the only human species left?
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The obvious answer is intelligence.
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But that falls apart quickly.
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Because Neanderthals were intelligent, Denisovans adapted to extreme environments, Homo erectus outlasted us many times over,
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and Homo floresiensis survived conditions that would terrify a modern person.
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What may have actually separated us was something harder to measure, the way we built connections across distance.
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didn't just live in groups, we built networks.
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Tools, techniques, and knowledge moved between communities in ways
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that don't seem to have happened for other species at the same speed or scale.
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When one group faced a crisis, the things they'd learned didn't die with them.
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That knowledge had already traveled.
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When the climate shifted, and entire regions became unlivable, our species had the flexibility to reorganize because we weren't locked into any single place or any single strategy.
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But even that only explains part of it.
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Luck, geography, and being in the right place, with enough numbers at the right moment, all played a part too.
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We weren't destined to be the last one standing.
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We just happened to be.
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The other human species weren't early versions of us, and they weren't simply stepping stones on the way to become Homo sapiens.
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They were their own kinds of humans, each with a different way of surviving in the world.
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Homo erectus survived for nearly two million years and still disappeared.
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Neanderthals endured hundreds of thousands of years of Ice Age climates and still vanished.
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The Denisovans left behind almost no fossils at all, yet traces of their DNA still exist in people today.
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larger family.
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Now, we're the only one left.
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คำศัพท์และข้อสังเกตด้านการพูดสำหรับบทเรียนนี้
บทเรียนฝึกพูดระดับ B2 นี้ใช้วิดีโอ “Why Are We the Only Human Species Left? What happened to others..” เป็นสื่อ คำที่ถูกพูดซ้ำบ่อยที่สุด: species, Homo, Neanderthals, population, modern วิดีโอนี้มี 101 ประโยค และ 1404 คำ สำหรับฝึกพูดตาม ช่วงที่มีเสียงพูดยาว 8:05 ผู้พูดพูดด้วยความเร็วเป็นธรรมชาติ ประมาณ 174 คำต่อนาที ใกล้เคียงกับบทสนทนาในชีวิตประจำวัน มีเพียง 81% ของคำที่อยู่ใน 3,000 คำที่ใช้บ่อยที่สุดในภาษาอังกฤษ คำศัพท์จึงค่อนข้างยาก
คำศัพท์สำคัญในวิดีโอนี้
คำที่ยากที่สุด 15 คำในวิดีโอ พร้อมคำอ่านและความหมาย:
| คำศัพท์ | คำอ่าน | ความหมาย |
|---|---|---|
| fossil คำนาม | /ˈfɑsl̩/ | ฟอสซิล, ซากดึกดำบรรพ์ |
| disappear คำกริยา | /dɪsəˈpɪɹ/ | หาย, สูญ |
| misunderstand คำกริยา | /mɪs.ʌn.də(ɹ)ˈstænd/ | เข้าใจผิด, เขว |
| catastrophe คำนาม | /kəˈtæstɹəfi/ | พิบัติ, ภัยพิบัติ |
| plateau คำนาม | /plæˈtoʊ/ | ที่ราบสูง |
| metre คำนาม | /ˈmiːtəɹ/ | เมตร |
| extinction คำนาม | /ɪkˈstɪŋkʃən/ | การสูญพันธุ์ |
| skeleton คำนาม | /ˈskɛlətən/ | โครงกระดูก |
| bury คำกริยา | /ˈbɛɹi/ | ฝัง |
| mainland คำนาม | /ˈmeɪnlənd/ | แผ่นดินใหญ่ |
| geography คำนาม | /d͡ʒiˈɑɡɹəfi/ | ภูมิศาสตร์ |
| wipe คำกริยา | /waɪp/ | เช็ด |
| rider คำนาม | /ˈɹaɪ̯.dəː/ | ผู้ขี่ |
| flexibility คำนาม | /ˌflɛksɪˈbɪlɪti/ | ความยืดหยุ่น |
| lung คำนาม | /ˈlʌŋ/ | ปอด |
กริยาวลีที่คุณจะได้ยิน
| คำศัพท์ | ความหมาย |
|---|---|
| leave behind คำกริยา | ลืม |
| show up คำกริยา | โผล่ |
ไวยากรณ์ในวิดีโอนี้
โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:
| โครงสร้าง | ในวิดีโอ |
|---|---|
| Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ | were built · were written · weren't wiped |
| Relative clauses who / which + อนุประโยค — ข้อมูลเพิ่มเติมเกี่ยวกับคนหรือสิ่งของ | ones who are · longest, which is · world, which means |
| Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน | have ever accomplished · we've spoken · have turned |
การออกเสียงที่ควรระวัง
ผู้พูดใช้รูปย่อและรูปลดเสียง 20 ครั้ง เช่น weren't, didn't, they'd ให้พูดแบบสั้นตามที่ได้ยิน
- เสียง “sh” และ “zh”: brutish /ˈbɹuːt.ɪʃ/, reshape /ɹiːˈʃeɪ̯p/, vanish /ˈvænɪʃ/, extinction /ɪkˈstɪŋkʃən/, accomplish /əˈkɑm.plɪʃ/
- คำยาว — ลงเสียงหนักให้ถูกพยางค์: misunderstand /mɪs.ʌn.də(ɹ)ˈstænd/, catastrophe /kəˈtæstɹəfi/, developmental /dɪˌvɛləpˈmɛntəl/, geography /d͡ʒiˈɑɡɹəfi/, flexibility /ˌflɛksɪˈbɪlɪti/
เสียงที่คนไทยมักออกเสียงยาก:
- เสียงท้ายคำ — ออกเสียงให้ครบ ไม่เปลี่ยนเป็นตัวสะกดแบบไทย: evolve /ɪˈvɑlv/, brutish /ˈbɹuːt.ɪʃ/, vanish /ˈvænɪʃ/, skeptical /ˈskɛptɪkəl/, developmental /dɪˌvɛləpˈmɛntəl/
- /v/ — ไม่ใช่ /w/ ให้ฟันบนแตะริมฝีปากล่าง: evolve /ɪˈvɑlv/, overstate /ˌoʊ.vɚˈsteɪt/, uncover /ʌnˈkʌvɚ/, vanish /ˈvænɪʃ/, developmental /dɪˌvɛləpˈmɛntəl/
- พยัญชนะควบ — ออกเสียงให้ครบทุกตัว: evolve /ɪˈvɑlv/, brutish /ˈbɹuːt.ɪʃ/, misunderstand /mɪs.ʌn.də(ɹ)ˈstænd/, outlast /ˌaʊtˈlæst/, ancestry /ˈæn.sɛs.tɹi/
วิธีฝึกกับวิดีโอนี้
- ฟังวิดีโอให้จบหนึ่งรอบโดยยังไม่ต้องพูด แล้วจดคำที่ยังไม่รู้จัก
- เริ่มที่ความเร็ว 0.75× พูดตามทีละประโยค แล้วกลับไปใช้ความเร็วปกติเมื่อเริ่มคล่อง
- อัดเสียงตัวเองแล้วเทียบกับต้นฉบับ โดยสังเกตคำอย่าง fossil, disappear, misunderstand เป็นพิเศษ
เทคนิค Shadowing คืออะไร?
Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ