跟讀練習: MinuteEarth Explains: Cats vs Dogs - 通過影片學習英語口語

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Hi, I'm Emily from MinuteEarth.

And this is my cat Yardly.

Or, as we've called him since he lost that eye, YARRRdly.

Coming up, four short stories about the science of our feline overlords and canine underlings.

First up, it turns out that somewhere in the process of domestication, we might have given our pets a small lobotomy.

Domestication has puppified dogs, fluffified sheep, and spotified horses.

But there's a less obvious physical change that virtually all domesticated animals share: shrunken brains.

Duck brains have shrunk by about 15%, cats brain by 30%, and pig brains by a whopping 35%.

We've even found smaller brains in farmed trout, which is weird because, in general, the size of animals' brains and the size of their bodies is super tightly linked.

Mites have smaller brains than ants, which have smaller brains than mice, which have smaller brains than elephants, and so on.

The same relationship exists for individuals within species. So, for example, small wolves have smaller brains than big wolves, and small dogs have smaller brains than big dogs.

But when you compare wolves and dogs, between individuals of the same size, the wolves have bigger brains.

No matter what body size is.

What's more, across different domesticated animals, a disproportionate amount of the shrinkage happened in parts of the brain that monitor information from the outside world and tell animals when and how to freak out. Sort of like the brain's panic button.

We know that in general, animals with bigger panic buttons have a more sensitive fight-or-flight response, and animals with smaller panic buttons are naturally tamer.

So, those are the ones we probably would have tried to domesticate. And by breeding the tamest animals with each other, we shrunk their panic buttons, and therefore their brains, even further. In short, domesticated animals have formed long-term partnerships with humanity, by literally losing their minds.

All of our pets are tame.

But some pets are tamer than others, and cats...

well, do cats even like us?

How did we end up sharing our houses with them?

Let alone shelling out for expensive eye removal surgeries?

This next video explains.

Hi, I'm Joe from It's Okay To Be Smart. If you line up the world population of domestic cats, that kitty conga line would wrap nearly six times around the planet!

Meow-adays, there's around 85 million pet cats in the US alone.

How did cats become the grumpy, laser-chasing, keyboard enthusiasts we know today? And what role did humans play in their trans-fur-mation?

It all started around 11 million years ago in Asia, with a cat that looked something like this. We think this ancestor of modern cats travelled far and wide in search of food and mates, an instinct shared across the feline family.

Single pumas have been known to patrol nearly 1000 km². That's as big an area as 200,000 American football fields.

That urge to roam drove early cats over land bridges into new worlds, and species diverged, many of which we'd recognize today. It was the smaller wildcats, at least the ones that survived big upheavals like a changing climate and the onslaught of a certain pesky primate that eventually became our first feline friends. As we moved away from hunter-gatherer ways and put down roots, food piled up and this brought other animals like rodents to the table.

And cats came strolling in after them.

Don't let those big eyes fool you. Felines are murder machines. They're more successful hunters than almost any other predator. And those hunting instincts would have been a big help to our ancestors. Cats that ate rodents but didn't eat children got to stick around.

People began getting attached to cats. In fact, a child and cat were buried together in a 9500-year-old grave in Cyprus. Cats weren't quite getting attached to humans, though. They retained their urge to roam, and their killer instinct, and still pretty much looked like their wild cousins. But they were changing.

Housecats can digest plant matter better than wildcats, helping them make meals of human scraps.

What's more, recent changes in genes influencing how cats respond to fear make domestic kitties friendlier than wildcats, even if we still can't exactly train them. The ancient Egyptians worshipped cats as incarnations of a goddess, and many of us take a hieroglyph from their tablet today.

Cats may have even learned to demand our attention.

In the wild, all kittens meow to mom, but once she stops listening, they move on to other sounds. But housecats never leave their adoring mothers, so the kitten call continues. So how did ferocious felines become purr-fect pets for millions of us around the world? It all started with the cat who ate the rat who ate the grain that lay in the hut that our ancestors built.

Most cats still look pretty similiar to their undomesticated ancestors. But dogs...

well, these guys don't exactly look like cousins.

But how similar are modern dogs to one another?

Ever since rich British folks invented dog shows as a spectator sport in the late 1800's, people have been parading pooches around with the goal of taking the top spot in their dog's so-called "breed group". These breed groups are based on the historical jobs dogs were bred to do.

With game retrievers like labs and spaniels in the sporting group, guard dogs like Dobermanns and mastiffs in the working group, and herding dogs like collies and sheepdogs in, well, the herding group.

And although most dogs today are just butt-sniffing layabouts, their breed group still influences how we think about them, which is why dog breed organizations describe dogs in the sporting group as attentive, dogs in the herding group as smart, and dogs in the working group as courageous. But perhaps unsuited for families with young kids.

However, two decades of canine research have revealed that, while dogs in a given breed group often share certain skills, they don't really have that much else in common. In one study in Sweden, researchers ran more than 13,000 dogs of 31 different breeds through a course full of sounds, surprises, and random humans attempting to snuggle.

They found that levels of playfulness, curiosity, sociability, and aggression did not differ among breed groups. Even weirder, it turned out that golden retrievers are more similar to Rottweilers than they are to their fellow sporting dogs. And boxers are more like labs than they are like other working dogs. In fact, most dogs act more like breeds outside their group than they act like other breeds within their group.

What's more, dozens of canine intelligence studies have shown that, when it comes to solving mazes and following commands, all breed groups perform about the same, even though some individual dogs are definitely smarter than others. So have dog enthusiasts somehow been imagining all of these differences among breed groups?

Maybe! Psychology research suggests that once we begin to see something in a particular way, we naturally seek out evidence that strengthens that image, and ignore evidence that undermines it.

But the truth is that you can't judge a bark by its cover.

I'm sorry about that last pun. We aim for groan-worthy, but that last one was re-pug-nant.

Anyway, last up, we've got a video for you about how your dog can protect you before you're born.

Mmm, puppies. Most dog owners say companionship is the number 1 reason to have a cuddly, devoted tail-wagger. And some people also have dogs for assistance or protection.

And just look at them! They're so cute!

So it's not surprising that we're willing to put up with less savory features of dogs, like muddy pawprints, and slobber all over everything.

Yet slobber and other pet dirt my actually be a pet benefit too. Especially if you happen to be an unborn baby.

Dogs, and also cats, influence the microbial communities in our homes so much that if your mother lives with a cat or dog while she's pregnant with you, you're about 30% less likely to suffer from allergies as a child.

This sounds kind of crazy, and we don't know exactly why it happens, but the most likely explanation is called the hygiene hypothesis. You know how children from Amish farm families have been found to suffer less from allergies and asthma than is typical in the modern Westernized world? Well, scientists think it's because their immune systems develop more fully, thanks to exposure to a wide variety of dirt, bacteria, and germs in fermenting feed, cow manure, and other barnyard delights. A key part of your immune system is the cells that recognize and neutralize foreign bacteria, viruses, transplanted body parts, or even your own damaged cells. Healthy cells in your body have distinctive proteins on them that immune cells recognize as part of you, while intruders and unhealthy cells without "you" proteins are flagged for careful monitoring.

If any "not you" stuff starts causing too much harm, your immune cells will attack it and take note to act quickly and vigorously against it in the future. Basically, learning who's harmlessly passing through, and who's a dangerous intruder.

But if the immune system incorrectly identifies an intruder, or doesn't properly learn who's who in the first place, our bodies can overreact to harmless substances, like a life-threatening allergic reaction to a minor bee sting.

In the Western world, the percentage of children who suffer from immune system overreactions like allergies and asthma has roughly doubled in the past forty years or so, even as infectious diseases have become much less common, thanks to improved hygiene, water, and sewage treatment, and so on. It's highly likely that the increased prevalence of allergies and asthma is due in part to the fact that the environments we live in are too clean, and don't give our immune system proper opportunity to learn who's who at a young age. Kind of like how we're better at learning foreign languages when we're younger, our immune systems are best at learning to distinguish harmless foreign substances from harmful ones when exposed to them very early in life.

That's why having dog slobber, kitty hairballs, and muddy pawprints around your mother while you're in utero might get your immune system off to a proper start even before you're born.

We still don't know exactly how your mother's exposure to extra bacteria influences you in the womb, but we do know that having a pet around before and after your birth may help keep your immune cells from barking up the wrong tree.

That's a bark pun I'm willing to stand behind!

Which is great. I'd hate to go out on a RUFF note.

Thanks for watching!

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為什麼要通過這個影片練習口語？

在學習英語的過程中，口語表達是極其重要的一環。通過觀看《MinuteEarth解釋：貓與狗》的影片，學習者不僅可以接觸到有趣的科學知識，還可以在輕鬆愉快的氛圍中提高自己的口語能力。此影片在生活中常見的主題上展開討論，包括關於貓和狗的 domestication(馴化) 的有趣事實，適合用作雅思口語練習材料。通過模仿影片中的發音與語調，學習者能夠更好地掌握英語影子跟讀（shadow speech）的技巧，從而在實際交流中更加自信和流利。

語法與表達在語境中的應用

在這個影片中，有幾個關鍵的表達結構非常值得關注：

“It turns out that…” - 這個句型常用來引入新的資訊，表明說話者即將分享重要的發現或事實，例如：“It turns out that somewhere in the process of domestication…”
“By breeding the tamest animals with each other…” - 這裡使用了被動語態，強調了行動的結果和影響，非常適合在描述研究成果時使用。
“Cats came strolling in after them.” - 這種用法不僅生動，還能有效地表達時間和順序，適合在敘述故事時應用。
“We think that…” - 這個短語為表達推測和觀點提供了良好的結構，幫助學習者在口語中表達自己的看法。

常見的發音陷阱

在這個影片中，有一些詞彙和發音可能對英語學習者構成挑戰，特別是在口語交流時。

“Domestication” - 這個詞的發音較為複雜，注意力集中在音節的劃分和重音位置。
“Panic button” - 學習者可能會在連讀時出現誤發音，需要練習將兩個詞順暢銜接。
“Ferocious” - 這個形容詞的發音不容忽視，尤其要注意“r”和“c”的發音，以確保正確表達其意思。

在進行英語影子跟讀練習時，仔細聆聽影片中的發音，可以幫助學習者有效克服這些發音陷阱。嘗試模仿影片中的發音風格，配合使用 shadowspeak 技巧，定能提升口語表達的流暢性與自然度。

影片中的語法

說話人最常用的結構，並附上影片中的原話：

結構	影片中的用法
現在完成時 have/has + 過去分詞 — 過去發生但與現在仍有關聯的事	we've called · has puppified · have shrunk
被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的	have been known · were buried · are based
定語從句 who / which + 從句 — 補充說明人或事物	trout, which is · ants, which have · them, which is

什麼是跟讀法？

跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。

影子跟讀法: 閱讀完整分步指南 →

跟讀練習: MinuteEarth Explains: Cats vs Dogs - 通過影片學習英語口語

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為什麼要通過這個影片練習口語？

語法與表達在語境中的應用

常見的發音陷阱

影片中的語法

什麼是跟讀法？

Could This Thing Really Fly?