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蜻蜓比你想象的要强大的多! – 译学馆
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蜻蜓比你想象的要强大的多!

Super Strong Dragonflies!

儿童科学秀
Scishow kids
如果夏天你在水边 就有相当多的机会
If you’ve ever been around water in the summer, then there’s a pretty good chance
看见蜻蜓
that you’ve seen a dragonfly.
有大的小的 各种颜色 红色 粉色
These bugs can be big or small, and almost any color you can think of, like red, pink,
还有紫色的
and even purple!
但是蜻蜓有许多共同点
But all dragonflies have lots of things in common,
虽然每个蜻蜓看起来都不一样
even if they look very different from one another.
例如……
For example …
[老鼠叫声]
[Squeaks squeaks]
对的 吱吱!
You’re right, Squeaks!
蜻蜓根本不是龙!
Dragonflies aren’t really dragons at all!
蜻蜓身体强壮 飞得快 但是不会伤害人
They are super strong and super fast, but they won’t hurt you.
尽管蜻蜓身子长看起来像带刺的 但它不蜇人
Even though their long bodies look kind of like a stinger, dragonflies don’t sting.
蜻蜓是昆虫 和蜜蜂 蚂蚁 瓢虫一样
Dragonflies are insects, just like bees, ants, and ladybugs.
和所有的昆虫一样 蜻蜓有六条腿
Like all insects, dragonflies have six legs…
身体主要分为三部分
… and three main parts of their body.
蜻蜓的生命从卵开始
A dragonfly’s life starts in an egg.
有的蜻蜓把卵产在水里或者是水边的植物上
Some dragonflies lay their eggs in plants that grow in or near the water,
有的直接把卵产在水里
and others lay their eggs right /in/ the water!
大约一周后小蜻蜓就孵出来了
About a week later baby dragonflies are born.
小蜻蜓叫幼虫 生活在水里
Young dragonflies are called nymphs, and they live in the water.
和鱼以及其他生活在水里的动物一样
Like fish and other kinds of animals that live in the water,
蜻蜓幼虫用腮呼吸
nymphs use body parts called gills to breathe.
但是和鱼不一样 它们的腮不在嘴旁边
But these gills aren’t anywhere near their /mouths/.
你能猜出腮在幼虫身体的哪个部位吗?
Can you guess where they are on the nymph’s body?
[吱吱叫]
[Squeaks squeaks]
你说得对!
That’s right!
在尾巴上
Their butt !
你能想象如果我们人类用屁股呼吸么?
Can you imagine if we humans breathed from our rear ends?
我很高兴我们用鼻子和嘴呼吸而不是屁股
I’m glad we can use our noses and mouths instead.
幼虫还可以用屁股喷水以快速游动
Nymphs can also squirt water out of their backsides to move around quickly,
它们用这种方法躲避天敌
like when trying to escape something that wants to eat them!
蜻蜓幼虫状态大约持续一年 虽然有的蜻蜓
Dragonflies stay as nymphs for about a year,
有五年幼虫期
although some kinds of dragonflies stay as nymphs for five years.
在此期间幼虫变得越来越大
That whole time, the nymphs get bigger and bigger
直到有一天它们从水里爬出来
and until one day they came out of the water
幼虫的外壳裂开 蜻蜓就变成了成虫
The outside of the nymph’s shell splits open, and an adult dragonfly comes out!
现在看一下蜻蜓幼虫和成虫的不同吧
Now, take a look at the dragonfly nymph compared to the adult.
它们身体看起来很像 但是蜻蜓成虫
The shapes of their bodies look kind of alike, but there’s one thing the adult dragonfly
有一个幼虫没有的东西
has that the nymph doesn’t.
你能猜出是什么吗?
Can you guess what it is?
[吱吱叫]
[Squeaks squeaks]
猜对了
Exactly!
翅膀
Wings!
蜻蜓身体中间有四个翅膀
The middle part of the dragonfly’s body has four wings,
在昆虫世界中 蜻蜓的翅膀是最强壮的
and they’re some of the strongest wings out of all the insects in the world.
强壮到能让蜻蜓飞越海洋
They’re strong enough to carry some dragonflies the whole way across the ocean.
如果你见过蜻蜓 就知道它们飞得很快
If you’ve ever seen a dragonfly, you know that they can also fly very fast.
蜻蜓以每小时50公里的速度飞行
They can fly at speeds of about 50 kilometers, or 30 miles an hour
和路上跑的汽车一样快
— as fast as a car driving down the street!
蜻蜓还会悬停 即能停在空中某个地方
They can also hover, which is when they stay in one place while they’re in the air, and
蜻蜓还会倒着飞
they can even fly backwards!
蜻蜓不仅是出色的飞行员
Dragonflies aren’t only awesome fliers, though.
还是优秀的猎手
They’re also excellent hunters.
蜻蜓利用飞行技巧和敏锐的视力捕食小昆虫 蝌蚪
They use their flying skills and great eyesight to catch and eat smaller insects, tadpoles,
还有小鱼
and even small fish!
因为蜻蜓飞行消耗大量能量 就要多吃
And since they need a lot of energy to fly, they need to eat a lot!
如果你吃得和蜻蜓一样多
If you ate as much as a dragonfly did,
你要每天吃八盒意面
you’d have to eat somewhere around eight boxes of pasta every single day!
有的蜻蜓个头大 从你身边嗡嗡地飞过
Some dragonflies are pretty big, and they make a kind of buzzing sound as they fly by,
就让你觉得它们有点吓人
which might make them seem a little scary.
但是确实不用害怕这种神奇的昆虫
But there’s really no reason to be afraid of these awesome insects.
它们不会伤害你
They won’t hurt you!
和其他的昆虫不一样 蜻蜓不蜇人
Unlike some other kinds of insects, dragonflies do not sting people.
蜻蜓飞过时你听到的嗡嗡声是什么呢?
And that buzzing sound you might hear as a dragonfly whizzes by?
只不过是翅膀在空中煽动发出的声音
That’s just the sound of their wings moving as they dart through the air.
蜻蜓有很重要的工作要做:它们吃的许多昆虫
Dragonflies have a very important job to do: a lot of the insects they eat are ones that
都是害虫 比如说叮人的小虫和蚊子
people think are pests, like gnats and mosquitoes.
吃这些害虫有助于减少
By eating lots of these pesky insects, dragonflies help to make sure that there aren’t too
周围的害虫
many of them around.
这是件好事
And that’s a good thing.
所以下次再见到蜻蜓别忘了说谢谢
So, the next time you see a dragonfly, don’t forget to say thanks!
谢谢观看
And thank you for joining us!
如果想跟我和吱吱一起了解更多知识 请点击订阅按钮
If you want to keep learning and having fun with Squeaks and me, hit the subscribe button,
下次Fort见!
and we’ll see you next time here at the Fort!

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视频概述

对蜻蜓的简单介绍:颜色,与幼虫区别,食物,食量,飞行方式,速度等

听录译者

收集自网络

翻译译者

greenhoodie

审核员

审核员T

视频来源

https://www.youtube.com/watch?v=lxubbepoz7Q

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