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观察小花花 – 译学馆
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观察小花花

Look Inside a Flower!

吱吱刚刚给了我一个最好的情人节惊喜:一束鲜花!
Squeaks just gave me the nicest Valentine’s Day surprise: a bouquet of flowers!
鲜花好看又好闻 但其实它们
Flowers are fun to look at and they usually smell great, but they actually have a really
还有个很重要的工作:
important job:
它们用鲜艳的颜色和香气吸引动物来帮助它们传粉
They use their pretty colors and smells to attract animals, which help make new plants.
如果你看过食物的那集 你可能会记得一些动物
If you’ve seen our episode about fruit, you might remember that some animals, like
比如蜜蜂 蝴蝶 蜂鸟 甚至蝙蝠会传播粉状物 也就是花粉
bees, butterflies, hummingbirds, and even bats move powdery stuff called pollen from
从一朵花到另一朵上
one flower to another.
这些动物就叫做传粉昆虫 它们携带的花粉
These animals are called pollinators, and the pollen they carry helps flowers make the
帮助花朵授粉从而长成新的植物!
seeds that can grow into new plants!
所以一朵花的使命就是:用美丽的外表和香气吸引传粉昆虫
So that’s a flower’s job: to use its nice colors and smells to attract pollinators.
植物的每个部分 从绿色的长茎到美丽的花瓣 都帮助这朵花
Each part of the plant, from the long green stem to the beautiful petals, helps the flower
完成其使命
do that job.
如果你仔细观察的话 你就会知道植物的每部分是如何运作的
And you can see how each part of the plant works if you look at it up close!
那些研究植物的植物科学家 有时会通过
Botanists, the scientists who study plants, will sometimes learn more about a plant by
切开它仔细观察 来更加了解一株植物
cutting it open and looking at the pieces.
吱吱 我们可以仔细观察其中的一朵花嘛?
Squeaks, would it be okay if we took a closer look at one of these flowers?
当然可以
(Squeak squeaks)
太好啦!
Great!
你也可以自己在家试试
You can try this at home, too.
你只需要一朵花 一把小刀 因为会切一些东西
All you’ll need is a flower, a knife, and help from a grown up since you’ll need to
所以需要家长的帮助哦
cut some things.
我们要用到的花是百合花 但是基本上所有的花
The flower we’re going to use is called a lily, but most other kinds of flowers will
都是可以的
work too.
你要做的第一件事就是把所有主要部分从花上分离开
The first thing you should do is separate all the main parts of the flower.
把花朵从茎上切下来 然后摘掉叶子
Just cut the flower off of the stem, then take off the leaves.
现在所有主要部分都已经分离开了 可以仔细看看它们了
Now that all the big parts are separated, you can take a closer look at each of them.
花茎真是又壮又挺啊!
The stem is really strong and stiff!
那是因为它需要支撑起整朵花
That’s because it needs to support the rest of the plant.
花径还连接着植物的根须
The stem also connects to the roots of the plant.
根须从地表吸取水和养分后 根茎再把它们
The roots suck up water and nutrients from the ground, and the stem brings them to the
传输给叶子和花朵
leaves and flowers.
这朵花的根被剪掉了 所以你们看不见
This flower’s roots were trimmed off, which is why you can’t see them.
花径的另一个职责是从叶子中输送养料给花朵
Another one of the stem’s jobs is to bring food from the leaves to the flower.
那接下来我们就看看叶子吧!
So let’s look at the leaves next!
叶子从花径上长出来 它们通体发绿是因为其布满了叶绿素
Leaves grow out of the stem, and they’re full of green stuff called chlorophyll.
当阳光照在叶子上 叶绿素就会把阳光变为植物所需的养料
When the sun shines on the leaves, the chlorophyll turns the sunlight into food for the plant!
看见叶子上爬的这些纹路了吗?
See those little lines running along the leaf?
这些是叶脉 它们和你身体里留着血液的血管很像!
Those are veins, and they’re a lot like the veins that move blood through your body!
叶脉从花径中吸收水和养分 把养料
The veins in the leaf bring water and nutrients in from the stem, and they carry the food
通过叶绿素合成的养料 传给植物的其他部分
the chlorophyll made to the rest of the plant.
所以花径和叶子收集并传送水 养分 还有其他养料去帮助
So the stem and the leaves collect and carry water, food, and other nutrients that help
花朵茁壮成长
flowers grow and stay healthy.
现在让我们来看看花吧!
Now let’s look at the flower!
花朵会产生一种甜甜的液体 叫做花蜜 传粉昆虫很喜欢吃
Flowers make a sugary liquid called nectar that pollinators like to eat.
所以对于一个传粉昆虫来说 一朵花的颜色和香气就像个招牌
So to a pollinator, a flower’s colors and smell are like a big sign that says “there’s
上面写着:我这里有好多吃的 快来呀!
lots of food here, come eat!”
如果把花瓣摘掉 你能看见有一些
If you pull the petals off of the flower, you can see that there are these sort of long,
很长很软绵绵的东西在里面
dangly things left inside.
它们就是雄蕊 花粉就是它们产的
They’re called the stamen, and they make the pollen!
当传粉昆虫找到花朵 它其实是来吃花蜜的
When a pollinator finds a flower, it comes to eat nectar.
但当它吃的时候 它就会粘上一些花粉
And while it’s eating, pollen from the stamen gets stuck to the animal.
然后 它飞走去找下一朵花的花蜜时 花粉就会
Then, when it flies off to get nectar from another flower, it spreads the pollen to that
传给其他的花了
other flower.
那就是传粉过程
That’s pollination!
现在还剩一部分 这一大根东西就是雌蕊
Now there’s just one part left, this sort of big stick thing called a pistil.
这就是花朵收集花粉的地方 传粉昆虫从其他花朵上
That’s the part of the flower that collects the pollen that pollinators bring from other
带来的花粉
flowers.
雌蕊的末端很黏 所以花粉就粘在了上面
It’s kinda sticky on the end, so the pollen sticks to it.
如果其他花的花粉进入到了雌蕊 它就会用
If pollen from another flower makes its way into the pistil, the pistil can use the pollen
这些花粉授粉成种
to make seeds.
接着 这些种子最后会长成新的植物!
And then, those seeds can eventually become new plants!
所以下次你出去玩的时候 看看周围的花
So next time you’re outside, take a look at the flowers around you.
它们虽是成千上万种 但基本都有着同样的使命
There are thousands of different kinds, but they all do basically the same job.
谢谢收看啦
Thanks for joining us today!
还有谢谢你 吱吱 给我这么好的礼物
And thank you, Squeaks, for bringing me such a nice surprise!
我也有东西给你!
I got you something too!
哈哈 谢谢
(Squeaks squeaks)
我很高兴你喜欢它
I’m glad you like it!
如果你对花朵 传粉昆虫 或者其他一些事情有疑问
If you have a question for us about flowers, or pollinators, or anything at all, grab a
让你的家长帮你在评论处留言或者给我们发邮件也行
grownup to leave a comment down below or send us an email at kids@scishow.com.
那下期我们再见啦!
And we’ll see you next time here at the fort!

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视频概述

这期我们观察一朵小花吧,花虽小但是本事却不小!谁来传粉?谁能供给?谁能变出新的小花来?相信看过这期节目你就有答案啦~

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视频来源

https://www.youtube.com/watch?v=R9sn7HZM7uY

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