Shadowing Practice: Why is walking humans’ superpower? – C1 English Listening Test - Learn English Speaking with Video
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54 sentences
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Dr. Leo Hammond, you're a neuroscientist who says walking is one of the most powerful things a human can do.
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That's quite a claim.
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Why?
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Because bipedal walking is quite literally what made us human.
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When our ancestors began to stand upright and walk on two legs, everything changed.
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How we moved, how we thought, how we lived together.
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It's the ability that fundamentally shaped our bodies and, quite probably, our minds too.
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So why did early humans develop this ability in the first place?
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There are several leading theories.
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One is the savannah theory.
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As forests disappeared and open grasslands spread across Africa, our ancestors had to come down from the trees
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and standing upright helped them see over tall grass to spot predators or food.
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Another is the energy efficiency theory, which suggests that walking on two legs used less energy than moving on all fours,
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allowing early humans to travel greater distances without tiring.
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And then there's the carrying theory.
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Once we were upright, our hands were free to carry food, tools and babies, which made life a lot easier and encouraged social cooperation.
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Most scientists today agree it was probably a mix of all these factors that led to bipedal walking.
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And you just said that walking upright changed how we think.
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How does that connect to the brain?
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Scientists believe that walking more efficiently may have freed up energy for other parts of the body, especially the brain.
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The human brain consumes a huge amount of energy, and over time it became larger and more complex.
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The carrying theory also suggests that once our hands weren't needed for movement, they could be used for making tools,
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for gestures, both of which demanded greater coordination between the hands, eyes and brain.
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Over time, that coordination may have strengthened the brain areas responsible for planning, cooperation, even language.
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So, in a way, the way we moved began to shape the way we thought and communicated.
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So, walking might have played a role in how we became intelligent?
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Exactly!
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We can't really say walking caused intelligence, but it was almost certainly one of the key factors that made it possible.
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Movement, tool use, social interaction, they all evolved together.
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This dynamic interplay literally shaped the modern human mind.
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Every stride helped build that deep connection between our bodies and our brains.
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That's fascinating.
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It's quite ironic how walking was so central to our evolution, and yet we do so little of it now.
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Yeah.
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Modern life often stops us from living in line with our evolutionary design, right?
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Our bodies and brains are still wired for movement.
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People who walk regularly have more energy, more focus and better mental health overall.
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There's a lot of research supporting that now, right?
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Absolutely.
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Studies show that even 12 minutes of brisk walking can alter chemical markers in the blood linked to mood and stress.
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Longer regular walks improve memory, sleep, creativity, you name it.
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In one experiment, people produced twice as many original ideas while walking as when sitting still.
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Does it matter where we walk?
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In nature or in the city?
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And nature does seem to add a little extra magic.
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Forests release natural compounds that boost our immune system.
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Walking near water lowers blood pressure and stress levels.
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But really, any kind of walking helps.
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Even in the city, if you just lift your eyes from your phone and actually look around, you start to feel the difference.
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So when we walk, we're reconnecting with something ancient in ourselves.
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That's exactly it.
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Every time you stroll through a park, or stride to work instead of driving, replaying a story that began millions of years ago.
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Walking helped make us who we are, and it's still the simplest,
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most natural way to keep both our bodies and our minds alive and alert.
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Vocabulary and speaking notes for this lesson
This video has 54 sentences and 642 words to shadow. The speech runs for 4:15. The speaker talks at a natural 151 words per minute, close to everyday conversation. 86% of the words are among the 3,000 most common in English; the rest is worth studying before you start.
Key vocabulary in this video
15 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| upright adjective | /ˈʌpɹaɪt/ | Vertical; erect. |
| cooperation noun | /koʊˌɑ.pəˈɹeɪ.ʃən/ | The act of cooperating. |
| scientist noun | /ˈsaɪəntəst/ | One whose activities make use of the scientific method to answer questions regarding the measurable universe. A scientist may be involved in original research… |
| distress noun | /dɪˈstɹɛs/ | Physical or emotional discomfort, suffering, or alarm, particularly of a more acute nature. |
| coordination noun | /kəʊˌɔːdɪˈneɪʃən/ | The act of coordinating, making different people or things work together for a goal or effect. |
| encourage verb | /ɪnˈkʌɹ.ɪd͡ʒ/ | To mentally support; to motivate, give courage, hope or spirit. |
| mood noun | /muːd/ | A mental or emotional state, composure. |
| wire noun | /ˈwaɪɚ/ | Metal formed into a thin, even thread, now usually by being drawn through a hole in a steel die. |
| boost verb | /buːst/ | To lift or push from behind (one who is endeavoring to climb); to push up. |
| evolution noun | /ˌiːvəˈluːʃ(ə)n/ | A manoeuvre of troops or ships. |
| connect verb | /kəˈnɛkt/ | To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object. |
| efficiency noun | /ɪˈfɪʃ.ən.si/ | The extent to which a resource is used for the intended purpose. |
| experiment noun | /ɪkˈspɛɹ.ə.mənt/ | A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of… |
| grass noun | /ɡɹɑːs/ | Any plant of the family Poaceae, characterized by leaves that arise from nodes in the stem and leaf bases that wrap around the stem, especially those grown as… |
| alert adjective | /əˈlɝt/ | Attentive; awake; on guard. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| look around verb | To inspect a building or area. |
| see over verb | To inspect something fully. |
Pronunciation to watch
The speaker uses 4 contractions and reduced forms, such as can't, we're, weren't. Say them the short way, as you hear them.
- The “sh” and “zh” sounds: cooperation /koʊˌɑ.pəˈɹeɪ.ʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, evolution /ˌiːvəˈluːʃ(ə)n/, efficiency /ɪˈfɪʃ.ən.si/, interaction /ˌɪn.təˈɹæk.ʃən/
- Long words — get the stress right: cooperation /koʊˌɑ.pəˈɹeɪ.ʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, evolution /ˌiːvəˈluːʃ(ə)n/, efficiency /ɪˈfɪʃ.ən.si/, experiment /ɪkˈspɛɹ.ə.mənt/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like upright, cooperation, scientist.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.