ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: Evolution FAILS in the Human Body
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157 ประโยค
หากประโยคสั้นหรือยาวเกินไป กดที่ Edit เพื่อปรับแก้
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Hey smart people, Joe here.
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Bodies. We’ve all got ‘em.
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Couldn’t live without ‘em!
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But why are they so dumb and unreliable?!
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I don’t know if it’s because I just got over a sinus infection or because my wife just had knee surgery, or maybe it’s just me getting older and hurting more… I’M A MILLENNIAL!! but I have been noticing lately that the human body… it’s got a lot of problems.
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And this video is a big long rant about a bunch of ‘em.
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I mean don’t get me wrong, humans are really awesome.
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Look at all we can do!
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It’s just that, there’s so much about our bodies that is flawed.
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Like, so many of our parts wear down or are easy to break, and others look like Ikea furniture would look if you accidentally threw away the instructions before putting it together… in that it basically functions, but you’re pretty sure something’s backwards and somehow you have like three of those little twisty things left over?!
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The great American poet John Mayer once said “your body is a wonderland”, but I think he meant “your body is a blunderland”.
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From eyes that don’t work right and backs that ache to needy diets and extra bones… what I’m saying is… sure, our bodies look cool–especially if they’re wearing an awesome shirt–but who the heck designed these things?!
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Well, no one did.
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We’ll get back to that, but first, instead of talking about how great we are, let’s talk about some of our critical weaknesses.
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The first example… it’s staring right at ya.
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I mean, I don’t wear these things to look cool and smart.
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I mean, they do make me look cool and smart, but I wear them because I can’t see!
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Like nearly half of Americans and Europeans or nearly 7 in 10 people in Asian countries, my peepers don’t peep right.
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I’ve worn glasses since elementary school.
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Space shuttle.
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Nice! Very on brand, younger me.
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Anyway, before the invention of corrective lenses a few centuries ago, people who couldn’t see just… couldn’t see.
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And back in our prehistoric hunter-gatherer days, that could’ve meant starvation and death.
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Bad eyes, empty stomachs, you lose.
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Thing is, even if you don’t wear glasses, you have eye problems.
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While looking at this image, cover your left eye, and look at the dot while keeping your face centered in front of the screen.
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Slowly move closer or farther from your screen and the cross will disappear.
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Did it work?
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Around 30 cm or 12 inches away works for me.
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Pretty weird huh?
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You can try it with the other eye too.
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Cover your right one, stare at the cross, and move until the dot disappears.
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That’s your blind spot, and every animal with a backbone has a blind spot in each eye because of how the eye is built.
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The light sensitive layer inside your eye is filled with tiny cells called photoreceptors.
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They’re like little microphones.
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One end turn photons of light into electrical signals, and the other end’s a wire that carries the signal away.
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Except our retinas are built so the cables are pointed towards the light, like talking into the back of a microphone.
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The cables from all those little microphones have to pass through a hole in the retina to get to the brain.
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And where that hole is, we have a blind spot.
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We just don’t usually notice it because our brain lies to us and fills in the image.
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Why do we have it?
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Because at some point way back in evolution, when our ancestors started to evolve the first light-sensitive tissues, that’s just the direction the cells were facing.
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And later, when those patches morphed into actual eyes, it was too late.
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The backwards pattern was already set.
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Evolution can’t suddenly flip a whole eye around.
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It can only make tweaks to what’s already there.
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But cephalopods–like octopuses, squid, and cuttlefish–they don’t have a blind spot.
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This branch of animals evolved eyes completely on their own, and in early octopus ancestors, the cables on all their microphone-shaped light-sensing cells pointed toward the back, so their retina is unbroken.
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Am I saying that cephalopods have better eyes than us?
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Mmm, yes. Point, cephalopods.
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And another point for having eight legs.
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Ok, enough about eyes!
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Why is there so much empty space in our skulls?
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You know I can take you off the set any time right?
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Watch it, globie.
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When we breathe, air enters our nose and passes through four chambers called sinuses where the air gets warmed up, humidified, and filtered by mucous membranes.
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The mucus then drains ure is plenty in YOUR skullout and back down your throat to your stomach.
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Mmm, gross.
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That works pretty well for the sinuses on top, they have gravity to help them.
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But the big ones behind your cheeks?
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They drain up.
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Up! And that difficult drainage is why humans get so many head colds and sinus infections.
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You know who doesn’t get sinus infections?
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Dogs. Dogs and other animals that rely mainly on smell tend to have elongated nasal cavities, which drain down and back with gravity, the correct way.
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But as our ancestors became more dependent on vision and less dependent on smell, our snouts got smushed up into our flat faces, and now we have tiny noses and get sick all the time.
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If you accidentally eat some air, no biggie.
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You can just burp it out.
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But if you breathe in your food, you’re gonna choke and maybe die.
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What’s up with that?
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It comes down to the fact that like most other vertebrates, we breathe and eat through the same throat hole, another one of evolution’s amazing bright ideas.
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But I once saw a bird swallow a fish as big as its head.
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It did not die.
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If I did that, I would die.
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But snakes and birds can swallow huge meals whole because their nostrils connect directly to their breathing parts without going through the throat.
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Like an alternate breathing system.
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But in every mammal, we’ve just got the one tube, and all that separates the digesting part from the breathing part is a little flap called the epiglottis.
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Epiglottis open?
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You’re breathing.
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Epiglottis closed, you can eat or drink.
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Mess up that order, here’s how to do the Heimlich maneuver.
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Now, lots of animals can choke.
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Even whales can choke if fish get stuck in their blowholes.
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Yes, that actually happens.
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But humans are especially prone to choking because our voice box, or larynx, has moved up so high in our throats.
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I tell ya, these throats were made for talkin’.
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Some languages even make vocal sounds using the epiglottis, like in some African languages.
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That higher voice box has squished up the swallowing parts of our throat so there’s not a lot of room for error.
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But on the plus side, we can yodel.
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So maybe we can call this bad evolutionary trait a tie.
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So. Walking upright.
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Pros: We can run, kick a soccer ball, dunk a basketball, do sports things with all the other balls, ride a pogo stick, surf, ice skate, dance, and dance dance revolution.
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Cons: So many unique and painful ways to injure ourselves.
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Some of your body’s joints are beautiful.
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I’m a huge fan of the jaw.
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And the hip?
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That ball, that socket.
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It’s like Michaelangelo sculpted it.
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But the human knee and ankle look like an elementary school art project held together by rubber bands.
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Back when our ancestors walked on all fours, they had twice as many limbs and muscles to carry their weight.
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But when they transitioned to walking on two legs, it put a lot more stress on our knees and ankles.
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When you quickly change direction while running, the anterior cruciate ligament is basically the only thing holding the two halves of your leg together.
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It has basically no blood vessels, and if you tear it, the only way to fix it is surgery, which we only invented like a hundred years ago.
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I have personally known at least a dozen people who have torn their ACL.
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If we were hunter gatherers or ancient hominids, every one of them would probably be dead.
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I don’t even know why I’m laughing, that’s horrible.
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And right under that is the Achilles tendon.
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Since we walk on the balls of our feet, that tendon takes basically all the force of the lower leg like a big fleshy rubber band.
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If you tear that one, you also can’t walk.
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It’s maybe the most important tendon in your body, so of course it sits there on the back of our leg completely exposed, waiting for the person behind us at the grocery store to ram it with their cart or your mythical arch nemesis to hit you with a poison arrow.
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This is not how you’d engineer bipedal legs from the ground up.
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This is way too many weak spots for any crucial structural system.
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But when the assignment was “turn an animal that walks on all fours into a fancy dancing ape on two legs”, evolution had to work with what it was given.
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Body parts are one thing, but evolution has messed up our insides too.
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Like, we are really poorly cut out for eating.
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Pretty much every animal needs the same nutrients in order to function.
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Stuff like amino acids, vitamins, a few minerals.
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But most animals make most of these things for themselves.
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But we have to get a literal grocery list of nutrients from our diet.
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Take “vitamins”.
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That’s what we call essential macronutrients that we have to get from our diet to survive.
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Vitamin C, for example.
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More than half a dozen proteins need vitamin C around to do their job.
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Without it, your bones get brittle, your tissue breaks down, you just bleed.
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Oh, and your teeth fall out.
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Scurvy is no fun.
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Pretty important stuff, this Vitamin C!
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So of course, we can’t make any.
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At all. We have to get every bit we need from our diet.
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Almost every animal on Earth makes their own Vitamin C. My dog never has to drink orange juice.
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Neither does a cow, or a cat.
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But I do. Strangely, humans have all the genes necessary to make vitamin C in our DNA.
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Yet somewhere in our evolutionary history, in some ancestor of all primates, one piece of the vitamin C machinery mutated and broke, and now we have to eat it or die, along with all these.
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Of the 20 amino acids we need to build proteins, our bodies only make 11.
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Many animals can make all twenty, but we have to get almost half from our diet.
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Needing to have ready sources of these essential nutrients has placed restrictions on where and how our species could live, at least before we could walk into any pharmacy and get them all in pill form.
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Pretty much everywhere you look, it seems like our body has room for evolutionary improvement.
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Our teeth? Most people grow a third set of molars–wisdom teeth–that won’t fit in their mouth and have to be removed.
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Do I need to mention the fact that a male’s gamete producing organs sit dangerously exposed outside the body?
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And the pelvis?
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Most women can’t deliver a baby without medical assistance because the human head is so large.
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Who came up with all these bad ideas?
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The answer, of course, is no one.
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Thanks to science, we know that the human body isn’t engineered, or designed.
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It’s evolved.
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Everything is the way it is because it got that way, making tiny tweaks to what was there before.
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That means that our backs hurt because we’re walking upright with a spine that used to be horizontal.
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We get fooled and we fool ourselves because our brains evolved in a different world than the one we invented in the past few decades.
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Sure, our bodies are full of parts that barely get the job done, full of things that could be built way better.
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And that can be frustrating, sometimes even painful.
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But nobody, and I literally mean “no body”, is perfect.
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Because surviving isn’t about being perfect, it’s about being good enough.
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It’s about being imperfect in the perfect way.
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If you’re watching this today, then you are good enough.
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Because you’re a survivor of a 4 billion year story.
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Our flaws make us who we are, because evolution and natural selection made us who we are.
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Flaws and all.
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Stay curious.
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ทำไมการฝึกพูดด้วยวิดีโอนี้ถึงมีความสำคัญ?
การเรียนรู้ภาษาอังกฤษผ่าน ชาโดว์อิ้ง จากวิดีโอนี้เป็นวิธีที่ยอดเยี่ยมในการพัฒนาทักษะการพูดของคุณ แต่อย่าลืมว่าเราไม่ได้แค่เลียนแบบเสียงพูด แต่เรายังได้เรียนรู้เกี่ยวกับการสื่อสารและบริบทของการใช้ภาษา การฝึกพูดตามเสียงในวิดีโอช่วยให้เราได้ฝึกการออกเสียง การใช้จังหวะ และการเน้นเสียงที่เหมาะสม ทำให้การสื่อสารของเรามีประสิทธิภาพมากยิ่งขึ้น
ไวยากรณ์ & สำนวนในบริบท
ในวิดีโอนี้ผู้พูดเสนอความคิดเห็นและคำถามหลาย ๆ อย่างที่สามารถช่วยให้เราเข้าใจรูปแบบประโยคต่าง ๆ ได้อย่างชัดเจน เช่น:
- "Why are they so dumb and unreliable?" - เป็นการใช้คำถามเชิงวิจารณ์ที่ทำให้ผู้ฟังรู้สึกตื่นเต้นและสนใจ
- "Look at all we can do!" - การใช้ "look at" เพื่อแสดงให้เห็นประโยชน์หรือคุณลักษณะดี ๆ
- "What I’m saying is…" - สำนวนนี้จะช่วยให้การสื่อสารของคุณเป็นระบบและชัดเจนมากขึ้น
การใช้สำนวนเหล่านี้ใน ชาโดว์อิ้งภาษาอังกฤษ ช่วยเพิ่มความคล่องแคล่วของคุณในการพูดอย่างมีประสิทธิภาพ
ข้อผิดพลาดในการออกเสียงที่พบบ่อย
ในวิดีโอนี้มีคำที่อาจจะทำให้คุณสับสนได้ เช่น:
- "peepers" - คำนี้เป็นคำสแลงที่ใช้พูดถึงดวงตา ซึ่งอาจทำให้ผู้เรียนต้องใช้เวลาในการทำความเข้าใจ
- "blind spot" - คำนี้อาจจะฟังเหมือนซับซ้อน แต่จริง ๆ แล้วมีความสำคัญที่เกี่ยวข้องกับการมองเห็น การรู้จักออกเสียงคำเหล่านี้ให้ถูกต้องสามารถช่วยให้การสนทนาของคุณเป็นไปได้อย่างราบรื่น
การออกเสียงซ้ำคำเหล่านี้ซ้ำในแต่ละบทเรียนผ่าน shadowspeaks จะช่วยให้คุณพัฒนาทักษะการฟังและการพูดได้ดียิ่งขึ้น
ไวยากรณ์ในวิดีโอนี้
โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:
| โครงสร้าง | ในวิดีโอ |
|---|---|
| Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ | is flawed · is built · is filled |
| Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน | I've worn · has moved · has squished |
| Relative clauses who / which + อนุประโยค — ข้อมูลเพิ่มเติมเกี่ยวกับคนหรือสิ่งของ | people who couldn · people who have |
เทคนิค Shadowing คืออะไร?
Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ