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How Do Fish Breathe?
儿童科学秀 ･ SciShow Kids
科学秀儿童频道,知识很有趣!
我和Squeaks收养了一条宠物金鱼
Squeaks and I are adopting a pet goldfish!
他住在鱼缸里 是一个游泳高手
He lives in a fish tank, and he’s a great swimmer!
实际上 这个小家伙真的很适应水里的生活
In fact, this little guy’s whole body is really suited to life in the water.
他强壮的鱼鳍帮他游泳 还可以在水中睁着眼睛
He has great fins to help him swim, and eyes that can stay open in the water.
这些特别的身体部位使他能够生活在水中的家里 我们称之为适应
These special body parts help him to live in his underwater home, so we call them adaptations.
我们的小鱼朋友能在鱼缸或鱼塘里生存
There’s one adaptation that’s really important for our new fish friend to survive in a fish
有一种适应是非常重要的
tank or pond.
他必须能在水下呼吸
He needs to be able to breathe underwater.
人不能在水下呼吸是因为那里没有空气
People can’t breathe underwater because there’s no air.
我们必须屏住呼吸 或使用像水中呼吸装置这样的专门设备来获得空气
We have to hold our breath, or use special equipment like scuba gear to get air.
但是我们的金鱼不用屏住呼吸 也不需要水中呼吸装置
But our gold