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The Human Body · 人體探索

The Human Body 人體探索

Big ideas about how your body works, read in English and explored with 3D models you can turn, and with measurements you take on yourself.
用英文讀懂身體運作的大道理,用可以親手旋轉的 3D 模型看懂,再用自己的身體量一量。

Every lesson starts with a question about your own body. A 3D model lets you turn, take apart, and look inside the answer, and an English reading explains it, with Chinese a tap away.
每一課都從一個關於自己身體的問題開始:先用 3D 模型轉一轉、拆一拆、看進裡面,找出答案;再讀一篇英文短文把道理講清楚,中文翻譯隨點隨看。

Each lesson also has you measure something on yourself, plus vocabulary, comprehension questions, a short quiz, and a classroom activity. These lessons are for learning, not medical advice.
每一課也會請你在自己身上量一量、數一數,並附生字、閱讀理解、小測驗和課堂活動。本系列是教育用途,不是醫療建議。

Lessons · 課程

28 lessons so far 目前 28 課,持續增加中

Lesson 1 · 第一課入門 · Beginner

Why Do We Need a Skeleton?

為什麼我們需要骨骼?206 bones hold you up, protect your organs, and even make your blood. Take a 3D skeleton apart bone by bone.206 塊骨頭撐起身體、保護內臟,還會製造血液;3D 骨架可以一塊塊拆開看。Start the lesson · 開始上課 →
Lesson 2 · 第二課入門 · Beginner

How Do Muscles Move Your Bones?

肌肉怎麼拉動骨頭?Muscles can only pull, never push, so they work in pairs. Lift a 3D arm and watch the biceps and triceps take turns.肌肉只能拉、不能推,所以總是成對工作;抬起 3D 手臂,看二頭肌和三頭肌輪流用力。Start the lesson · 開始上課 →
Lesson 3 · 第三課入門 · Beginner

Where Does Your Blood Go?

血液在身體裡怎麼流動?Your heart sends blood around two loops, one to the lungs and one to the whole body. Tap along with your pulse, and the 3D heart beats with you.心臟把血液送進兩個循環:一個到肺、一個到全身。跟著自己的脈搏點一點,3D 心臟就用你的心跳跳動。Start the lesson · 開始上課 →
Lesson 4 · 第四課入門 · Beginner

How Does Air Get into Your Blood?

空氣怎麼進到血液裡?Every breath travels to hundreds of millions of tiny air sacs, where oxygen crosses into your blood. Breathe along with a 3D pair of lungs.每一口氣都會走到幾億個小肺泡,氧氣在那裡進入血液;跟著 3D 的肺一起呼吸。Start the lesson · 開始上課 →
Lesson 5 · 第五課入門 · Beginner

How Do Your Joints Move?

關節怎麼活動?A knee swings like a door, but a shoulder can draw a circle. Move six real joints in 3D, then measure how far your own joints bend.膝蓋像門一樣擺動,肩膀卻能畫圓。在 3D 骨架上動動六個真實的關節,再量一量自己的關節能彎多少。Start the lesson · 開始上課 →
Lesson 6 · 第六課入門 · Beginner

What Happens to Your Lunch?

午餐吃下去之後去了哪裡?Your lunch takes a trip of several meters and a day or more. Follow one bite through the mouth, stomach, and intestines, and find out where your own lunch is right now.午餐要走好幾公尺、花一天以上的時間。跟著一口飯走過嘴巴、胃和腸子,再看看你自己的午餐現在走到哪裡。Start the lesson · 開始上課 →
Lesson 7 · 第七課入門 · Beginner

How Does Your Brain Talk to Your Body?

大腦怎麼指揮全身?Signals race along your nerves faster than a bullet train. Watch them in slow motion, find out why a reflex beats thinking, and test your own reaction time.訊號沿著神經奔馳,比高鐵還快。用慢動作看它們傳遞,弄懂為什麼反射比思考快,再測測自己的反應時間。Start the lesson · 開始上課 →
Lesson 8 · 第八課入門 · Beginner

How Do Your Eyes See?

眼睛怎麼看見東西?Light bends inside your eye and paints an upside-down picture at the back. Focus a 3D eye near and far, fix blurry vision with glasses, and find the blind spot in your own eye.光在眼睛裡轉彎,在眼球後面畫出一幅上下顛倒的圖。讓 3D 眼睛看遠看近、戴上眼鏡修正模糊,再找出你自己眼睛裡的盲點。Start the lesson · 開始上課 →
Lesson 9 · 第九課入門 · Beginner

How Do Your Ears Hear?

耳朵怎麼聽見聲音?Sound is air that shakes. Follow it through your eardrum and three tiny bones into a snail-shaped tube, and find the highest note you can still hear.聲音是空氣在振動。跟著它穿過鼓膜和三塊小骨頭,走進蝸牛殼形狀的耳蝸,再找出你還聽得到的最高音。Start the lesson · 開始上課 →
Lesson 10 · 第十課入門 · Beginner

What Does Your Skin Do?

皮膚在做什麼?Your skin is your biggest organ: it keeps germs out, feels the world, and cools you with sweat. Zoom into a slice of skin, and find out how strong today's sun is.皮膚是身體最大的器官:擋住病菌、感覺世界、用汗幫你降溫。放大看一片皮膚,再算算今天的太陽有多強。Start the lesson · 開始上課 →
Lesson 11 · 第11課入門 · Beginner

Why Do We Get Two Sets of Teeth?

為什麼會換牙?Baby teeth hold the place while adult teeth grow inside your jaw. Slide from age 3 to 20 and watch them trade places, then count your own teeth.乳牙先占位置,恆牙在頷骨裡慢慢長。把年齡從 3 歲拉到 20 歲,看它們換班,再數數你自己的牙。Start the lesson · 開始上課 →
Lesson 12 · 第12課入門 · Beginner

How Does Your Body Fight Germs?

身體怎麼對抗病菌?Your body has three walls against germs, and it remembers every enemy it has beaten. Watch white blood cells chase bacteria through a tiny cut, and see why the second fight is so much faster.身體有三道防線,而且記得每個打敗過的敵人。看白血球在一個小傷口裡追著細菌跑,再看看為什麼第二次交手快得多。Start the lesson · 開始上課 →
Lesson 13 · 第13課入門 · Beginner

Where Does the Water You Drink Go?

喝下去的水去了哪裡?Your two kidneys clean all of your blood about 30 times a day. Follow the water through real 3D kidneys, zoom into one tiny filter, and check whether you are drinking enough today.兩顆腎臟每天把全身的血洗大約 30 遍。跟著水走過真實的 3D 腎臟,放大看一個小小的過濾器,再看看你今天水喝得夠不夠。Start the lesson · 開始上課 →
Lesson 14 · 第14課入門 · Beginner

How Do You Taste and Smell?

味道是怎麼來的?Most of what you call taste is really smell. Send food molecules to a real 3D tongue and up the back way to the nose, then pinch your nose and taste the difference.你以為的「味道」,大部分其實是嗅覺。在 3D 裡把食物分子送到真實的舌頭、再從後門送進鼻子,然後捏住鼻子吃一口,嚐嚐差別。Start the lesson · 開始上課 →
Lesson 15 · 第15課入門 · Beginner

Why Do You Need Sleep?

為什麼要睡覺?While you sleep, your brain saves what you learned and your body grows and repairs itself. Travel through a whole night of sleep in 3D, and count your own sleep hours.睡覺時,大腦把學到的東西存起來,身體長高、修補。在 3D 裡走過一整晚的睡眠,再算算你自己睡了幾小時。Start the lesson · 開始上課 →
Lesson 16 · 第16課入門 · Beginner

How Do You Grow Taller?

你是怎麼長高的?Bones grow at soft growth plates near their ends. Watch real 3D leg bones grow from age 2 to 18, look at them the way an X-ray does, and measure how much taller you are in the morning.骨頭在兩端附近軟軟的生長板長長。看真實的 3D 腿骨從 2 歲長到 18 歲,用 X 光的方式看一看,再量量你早上比晚上高多少。Start the lesson · 開始上課 →
Lesson 17 · 第17課入門 · Beginner

How Do You Speak?

聲音是怎麼發出來的?Your voice starts as a buzz in your throat, and your tongue and lips shape it into words. Watch the vocal folds open and close in 3D, change the pitch and the mouth shape, and feel the difference between “sss” and “zzz.”聲音一開始只是喉嚨裡的嗡嗡聲,舌頭和嘴唇再把它捏成一個個字。在 3D 裡看聲帶一開一合,改變音高和嘴型,再摸摸喉嚨,感覺 sss 和 zzz 的差別。Start the lesson · 開始上課 →
Lesson 18 · 第18課入門 · Beginner

Why Are Your Hands So Clever?

手為什麼這麼靈巧?Each hand has 27 bones, but the muscles that bend your fingers are up in your forearm. Pull the “strings” of a real 3D hand, make a fist and a pinch, and test what your thumb can do.每隻手有 27 塊骨頭,可是彎手指的肌肉卻在前臂。在 3D 裡拉拉真實手骨的「線」,握拳、捏東西,再測測你的大拇指有多厲害。Start the lesson · 開始上課 →
Lesson 19 · 第19課入門 · Beginner

How Does Your Body Fix Itself?

身體怎麼修好自己?A scab, a bruise, a broken arm in a cast: your body is repairing itself. Watch a real 3D bone knit back together beside a healing cut, and keep a diary of a bruise or a fingernail.結痂、瘀青、打石膏的手臂——身體正在修補自己。看真實的 3D 骨頭慢慢長回去,旁邊是一道正在癒合的傷口,再幫一塊瘀青或一片指甲寫日記。Start the lesson · 開始上課 →
Lesson 20 · 第20課入門 · Beginner

What Happens When You Exercise?

運動的時候,身體發生什麼事?When you run, your heart, lungs, and muscles all speed up together. Set the pace for a 3D runner, watch the heartbeat and breathing follow, and then take your own pulse before and after.跑步的時候,心臟、肺和肌肉一起加速。在 3D 裡幫跑者調速度,看心跳和呼吸怎麼跟上來,再量量自己運動前後的脈搏。Start the lesson · 開始上課 →
Lesson 21 · 第21課入門 · Beginner

Where Does Your Energy Come From?

你的力氣從哪裡來?Food is fuel. Follow the sugar from a bowl of rice into your blood and out to your muscles and brain in 3D, compare two breakfasts, and sort one day of your own meals.食物就是燃料。在 3D 裡跟著一碗飯裡的糖進到血液、送到肌肉和大腦,比較兩種早餐,再把你自己一天吃的東西分分類。Start the lesson · 開始上課 →
Lesson 22 · 第22課入門 · Beginner

Why Is Your Body Always Warm?

身體為什麼總是暖暖的?Your body keeps itself close to 37 degrees, in winter and in summer. Turn the weather up and down on a 3D body, watch the skin react, and keep a temperature diary.不管冬天夏天,身體都把自己維持在 37 度左右。在 3D 裡把天氣調冷調熱,看皮膚怎麼反應,再記錄自己一天的體溫。Start the lesson · 開始上課 →
Lesson 23 · 第23課入門 · Beginner

Why Does Your Back Need Care?

背為什麼需要照顧?Your spine is a tower of bones and soft cushions that holds you up all day. Load a backpack onto a real 3D spine, tilt the head toward a phone, and check your own school bag.脊柱是一座由骨頭和軟墊疊成的塔,撐住你一整天。在 3D 裡幫真實的脊柱背上書包、讓頭低下去看手機,再檢查一下你自己的書包。Start the lesson · 開始上課 →
Lesson 24 · 第24課入門 · Beginner

What Are You Made Of?

你是什麼做成的?Zoom in on your hand, ten times closer at every step: skin, cells, the nucleus, and at last the DNA inside. Then work out how long it would take to count your cells.把鏡頭對著你的手,每一步都拉近十倍:皮膚、細胞、細胞核,最後是裡面的 DNA。再算一算,要數完你的細胞得花多久。Start the lesson · 開始上課 →
Lesson 25 · 第25課入門 · Beginner

How Do You Walk?

你是怎麼走路的?Every step is a controlled fall. Watch real foot bones roll from heel to toe in 3D, see the arch work as a spring, and measure your own step.每一步都是一次「控制好的跌倒」。在 3D 裡看真實的腳骨從腳跟滾到腳尖、足弓像彈簧一樣工作,再量一量自己的一步有多長。Start the lesson · 開始上課 →
Lesson 26 · 第26課入門 · Beginner

Why Do You Sneeze, Hiccup, and Yawn?

為什麼會打噴嚏、打嗝、打呵欠?Three things your body does without asking you. See the real diaphragm jump in 3D, step through a sneeze in slow motion, and count your blinks.三件身體不問你就自己做的事。在 3D 裡看真實的橫膈膜跳一下、用慢動作走完一次噴嚏,再數數自己眨了幾次眼。Start the lesson · 開始上課 →
Lesson 27 · 第27課入門 · Beginner

What Is in a Drop of Blood?

一滴血裡有什麼?Zoom into one drop: red cells, white cells, platelets, and the liquid that carries them. Watch each one do its job in 3D, and find out how much blood you have.把鏡頭對準一滴血:紅血球、白血球、血小板,還有載著它們的液體。在 3D 裡看它們各做各的工作,再算算你全身有多少血。Start the lesson · 開始上課 →
Lesson 28 · 第28課入門 · Beginner

How Do You Remember?

你是怎麼記住東西的?A memory is a path in your brain that gets stronger each time you use it. Follow one in 3D, watch it fade and come back, and test the best way to learn new words.記憶是大腦裡的一條路,每用一次就更牢固。在 3D 裡跟著一條記憶走,看它變淡又回來,再親自試試哪種方法最能記住新單字。Start the lesson · 開始上課 →