ADM-201 dump PMP dumps pdf SSCP exam materials CBAP exam sample questions

什么是流星雨? – 译学馆
未登录,请登录后再发表信息
最新评论 (0)
播放视频

什么是流星雨?

What's a Meteor Shower?

吱吱和我最近建造了一个瞭望台 我们也陶醉于用它来看
Squeaks and I built this awesome observatory recently, and we love using it to look at
夜空
the night sky!
如果你曾在晴夜仰望过夜空 你也许会注意到这里
If you’ve ever looked up on a dark, clear night, you probably noticed that there are
繁华炫目
a lot of things to see.
你能看见月亮 星星 甚至一些行星
You can see the Moon, the stars, and even some planets!
如果你十分幸运 你也许会看到一颗流星:划过天际后的
And if you’re really lucky, you might get to see a meteor: a streak of light that bursts
一条光迹
across the sky.
因为流星产生的光看起来就像恒星所产生的亮光
Since the light that meteors make looks kind of like the bright light that stars make,
许多人管流星叫“陨星”
a lot of people call meteors “shooting stars.”
但流星根本不是恒星
But meteors aren’t stars at all!
在太空中 恒星是由气体组成出口的大球体 离地球很远
Stars are big balls of gas way out in space, far, far away from the Earth.
但流星的产生却是缘于小块岩石和金属被引力拉到了地球附近
But meteors are caused by pieces of rock and metal that are pulled close to the Earth.
这一切都始于小块岩石和金属
It all starts when a small piece of rock or metal breaks away
在遥远的太空中被分离出来
from something bigger in space.
许多时候 这些小东西也不比一粒米大很多
Most of the time, these pieces are small — not much bigger than a grain of rice.
有一些只有灰尘般大小
And some are only about the size of a piece of dust!
当这些小东西向地球跌落时 他们的速度非常快 以至于加热了周围的空气
When the pieces fall toward Earth, they’re going so fast that they heat up the air all
然后燃烧起来 使得空气绚丽夺目
around them and burn up, making the air glow.
我们在空中看到的亮光——是一块小石头或金属在燃烧
That’s the light we see in the sky — it’s a little piece of rock or metal burning up!
我们把下落的东西叫做流星体 它所产生的光是流星
We call the falling piece a meteoroid, and the light it makes is the meteor.
当流星体彻底的燃烧 流星便消亡了 光亮也暗淡了
When the meteoroid is completely burned, the meteor is gone, and the light disappears.
如果下落体很小 光亮或许会稍纵即逝
If the piece is very small, the light might only last for less than a second.
如果下落体很大 光迹也许会划过整片天空
If the piece is larger, though, the streak might race the whole way across the sky!
如果下落体足够大 它可以一直穿过大气层
And if the piece is large enough, it can make it all the way through the layer of gases…
撞在地球的表面
and hit the surface of the Earth.
如果发生了 它会得到一个新名字——一颗陨石
If it does, then it gets a new name … a meteorite.
[吱吱声]
[Squeaks squeaks]
我知道
I know!
有很多单词听起来都非常相像
That’s a lot of words that sound almost the same.
但他们完全不同 流星是一条光迹 流星体是
But they’re all different: the meteor is the streak of light, the meteoroid is what
降落时的小岩石或金属
we call the bit of rock or metal as it falls, and the meteorite is what we call it when
当它落在地面上时就称为陨石
it hits the ground.
每年都有成千上万的陨石落在地球上 但他们中的绝大多数都是很小的
Thousands of meteorites fall to the ground every year, but most of them are really small,
所以我们都没注意到他们
so we don’t notice them!
更多的流星体甚至在落到地球上之前就燃烧完了
And there are even more meteoroids that burn up before they can get to the ground.
在每年的某些时候 这会有比平常更多的流星
During certain times of the year, there are a lot more meteors than usual.
一个小时内就有六十多颗
There can be 60 of them in an hour!
这被称为流星雨 因为这有如此多的流星划过天际
That’s called a meteor shower, because there are so many meteors falling through the sky
这很像我们在其中洗澡
that it’s almost like we’re taking a shower in them!
[吱吱笑声]
[Squeaks laughs]
我知道 这很有趣
I know, that is kind of funny!
你能想像在跌落的岩石和灰尘中洗澡吗
Can you imagine taking a shower in falling rocks and dust?
我想还是坚持用水来洗澡吧
I think I’d rather stick to water instead
流星雨之所以产生 是因为在太空中叫彗星的东西
Meteor showers happen because of something else in outer space, called a comet.
彗星通常离地球很远 始终处于
Comets are usually very far away from the Earth, all the way out at the edge of the
太阳系的边缘
solar system.
但有时 它会在地球绕着太阳转的轨道的附近
But sometimes one passes close by, right near the path where Earth moves around the sun!
当它经过时 彗星上的一些灰尘脱落了 可以在这
As it passes by, some dust from the comet breaks off, and the dust can stay in that
停留挺长一段时间
spot for a really long time.
每年 当地球接近尘埃在太阳周围移动的地方
Every year, when the Earth gets close to the spot where the dust is as it moves around
许多的尘埃向地球跌落 每颗小小的跌落物都会成为一颗流星
the sun, lots of the dust falls toward Earth, and each little piece of it creates a meteor.
那就是我们所看到的流星雨
That’s when we get a meteor shower!
全年都有几种不同的流星雨
There are a few different meteor showers all throughout the year.
场面壮观的流星雨在一月 四月 五月 七月 八月 十月 十一月和十二月
There are big ones in January, April, May, July, August, October, November, and December,
所以会有很多的机会去看他们
so there are lots of chances to see them!
事实上 在今年吱吱和我将要去看最壮观的流星雨
In fact, Squeaks and I are about to get to see one of the biggest meteor showers of the
它被称为英仙座流星群
year, called the Perseids.
去看它的最佳的夜晚是在八月十二日左右
The best nights to see it are right around August 12.
当你下次能去看流星雨时 你可以叫一名成年人
You can ask a grownup to help you find out when you’ll next be able to see a meteor
去帮你查明
shower.
然后你需要去找到一个漆黑的地方 抬头 接着欣赏流星雨
Then, all you need to do is to find a dark spot, look up … and enjoy the light show!
你曾看见过流星吗
Have you ever seen a meteor?
你认为流星雨如何呢
How about a meteor shower?
请一名成年人帮你在下方发表评论吧 或者向我们 kids@scishow.com网站寄一份邮件吧
Ask a grownup to help you leave a comment below, or send us an email at kids@scishow.com.

发表评论

译制信息
视频概述

一粒小小的太空尘埃是如何变成炫目的流星

听录译者

收集自网络

翻译译者

北冥有渔

审核员

审核团H

视频来源

https://www.youtube.com/watch?v=F4xavj2hqSU

相关推荐