Is a Trillion?
美音、自然拼读、分级阅读与词汇复习
Table of Contents Really Big Numbers.
目录：真正的大数。
4 Hide and Seek.
4 隐藏并寻求。
5 How Much Is a Million?
5百万多少钱?
6 I’ve Told You a Million Times!
6次,
7 A Million Pennies.
7百万笔
8 Ready or Not, Here I Come!
准备好了吗,我来了!
9 How Much Is a Billion?
9亿是多少?
10 A Billion Pennies.
10亿便士.
13 How Much Is a Trillion?
13 三亿美金多少钱?
14 Big Numbers Are Useful.
14大数字是有用的。
15 Conclusion.
15 结论。
16 Really Big Numbers What’s the biggest number you can think of?
16个真正的大数字 你能想到的最大数字是什么?
One hundred?
一百块?
One thousand?
一千块?
Ten thousand?
一万块?
We use special words such as million, billion, and trillion to talk about really big numbers.
我们用特别的词,比如百万,亿和万亿来谈论真正的大数字。
But what do these words mean?
但是这些话是什么意思?
And what do a million, a billion, and a trillion look like?
一百万亿,一万亿是什么样子?
More than 7 billion people live on planet Earth.
70多亿人生活在地球上。
In October 2008, the U.
2008年10月,乌.
S.
师曰.
national debt grew larger than the number of spaces on the sign.
国家债务的增长幅度大于标志上的空间。
Hide and Seek Have you ever played the game of hide and seek?
隐藏和搜索 你玩过捉迷藏游戏吗?
In hide and seek, one person counts up to a number while everyone else hides.
在隐藏和寻找中,一个人数到一个数字,而其他人则躲起来。
But some numbers are so big that you couldn’t count up to them in your whole lifetime.
但有些数字如此之多,
How Much Is a Million?
一百万多少钱?
We write one million as a one followed by six zeros, like this: 1,000,000.
我们写100万,然后是6个零, 像这样:100万。
Do you know how much a million is?
你知道一百万多少钱吗?
Some of the world’s largest cities have millions of people living in them.
世界上一些最大的城市有数百万人生活在其中。
If you are lucky, you might win a million dollars in a lottery.
如果你幸运的话,你可能会赢得一百万的彩票。
four, five.
4个,5个
I’ve Told You a Million Times!
我已经跟你说过一百万遍了！
i Maybe you think your parents have told you to clean your room a million times.
(单位:千美元) 也许你认为你的父母 告诉你清理你的房间一百万次。
But have they really?
但他们真的有吗?
Let’s say that every day your parents tell you ten times to clean your room.
每天你父母会告诉你十次,
You would be over 273 years old before they told you for the millionth time!
你将会超过273岁 在他们第一次告诉你之前!
A Million Penniesi Imagine a jar with one thousand pennies in it.
百万笔 想象一下一个罐子里面有一千个硬币
Now imagine one thousand jars, each with one thousand pennies inside.
现在想象一下,一千个罐子,每个罐子里面有一千个硬币。
That’s a million pennies.
这是一百万便士。
If I’ve told you once, I’ve told you a million times.
若我说过一次,
Clean your room!
清理你的房间!
Ready or Not, Here I Come!
准备好了吗,我来了!
Remember our earlier game of hide and seek?
还记得我们之前的捉迷藏游戏吗?
Let’s say you count to one million while your friends run and hide.
让朋友躲起来,
You will count for over three weeks without stopping before you reach one million.
你数三个多星期,不会停到一百万
Your friends will probably be very well hidden by then.
那时你的朋友可能已经非常隐蔽了
How Much Is a Billion?
亿分之多?
We write one billion as a one followed by nine zeros, like this: 1,000,000,000.
我们写了10亿,然后是9个零, 像这样: 1000万。
There are more than seven billion people alive on Earth right now.
地球上现在有70多亿人活着。
More than one billion of them are under the age of ten years old.
其中10多亿人口年龄在10岁以下.
That’s a lot of kids!
这是很多孩子!
But how much is a billion?
但十亿是多少?
Imagine I gave you a million dollars every day.
想想我每天给你一百万
At that rate, it would take almost two years and nine months before you had one billion dollars.
照这样的速度,你需要将近两年零九个月的时间才能得到10亿美元。
How long do you think it would take to count to a billion during a game of hide and seek?
你认为在一场捉迷藏的游戏中 数到十亿需要多久?
If you counted that high, your game would last about one hundred years!
如果你数到这个高, 你的游戏会持续大约一百年!
And that’s if you didn’t stop to sleep, eat, drink, or do anything else while you counted.
如果你没有停止睡觉、吃喝喝喝,
It took me a long time, but I found you!
我花了很长时间,但我找到你了!
How Much Is a Trillion?
一万亿有多大？
A billion is a big number, but a trillion is much larger.
10亿是一个大数字,但1万亿美元要大得多。
One thousand times larger to be exact.
确切的说是一千倍大
We write one trillion as a one followed by twelve zeros, like this: 1,000,000,000,000.
一万亿写作数字一后面跟十二个零，即：1,000,000,000,000。
But what does a trillion look like?
但万亿像什么?
Imagine that you stacked up one trillion pennies in the shape of a cube.
想象一下,你堆起一万亿个硬币 以立方体的形状。
Each side of the cube would be almost as long as a football field.
立方体的两侧几乎与足球场一样长.
A Billion Pennies Remember the jar of one thousand pennies?
一亿个硬币 记得一千分钱的罐子吗?
Imagine stacking one billion pennies up in the shape of a block.
想象一下10亿的硬币堆成一团
The block would be about the size of five school buses.
这个街区大概有五辆校车
Conclusion Knowing about millions, billions, and trillions can help us understand our world and our universe.
了解几百万亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿亿
So don’t be afraid of really big numbers and the words we use for them.
所以不要害怕真正的大数字,
Big numbers have a million uses!
大数字有百万种用途!
Big Numbers Are Useful People who work in science, business, and government often use big numbers in their work.
大数字有用 从事科学,商业,和政府工作的人经常会在工作中使用大量数字.
A scientist might use big numbers to measure the distance from Earth to the Sun.
科学家可能用大数字来测量地球到太阳的距离.
A businessperson might use them to count how many products a company has sold.
商人可能用它们来计算公司销售了多少产品。
A city planner might use them to decide how many schools a city with millions of people needs.
一个城市规划师可能用他们来决定一个有数百万人需要的城市有多少所学校.
Space is full of huge groups of stars called galaxies.
宇宙充满了被称作星系的巨大恒星群.
If you counted all the stars in ten galaxies like the one we live in (above), you would have about one trillion stars.
如果你数十个星系中的所有恒星, 就像我们生活在(以上)的恒星, 你会拥有大约一兆颗恒星。
Large construction projects often cost millions of dollars.
大型建设项目往往耗资数百万美元。