How Fast Are You?

How Fast Are You? Do you think you are a fast runner?How fast can you run?You may be fast for a person, but no one is as fast as some animals. For example, a cheetah can run up to 110 kilometres per hour. A horse can run almost 90. And a rabbit can run about 60. Even a wart hog can go as fast as 50 kilometres per hour! The fastest human once ran at a speed of about 45 kilometres per hour. That was for the 100-yard dash at the Olympics.

你有多快? 你认为你跑得快吗?你能跑多快?对于一个人来说，你可能是快的，但没有人能像一些动物一样快。 例如，猎豹可以跑到每小时110公里。一匹马能跑近90米。兔子能跑60米左右。即使是疣猪也能以每小时50公里的速度前进! 最快的人类曾经以每小时45公里的速度奔跑。那是奥运会的百米短跑。

Now, the fastest man alive is Asafa Powell, a sprinter from Jamaica. He ran 100 metres in 9. 77 seconds. That's about 10 metres per second or 36. 8 kilometres per hour! That's just a little faster than an elephant! Feeling slow?Well, don't feel bad because humans can outrun snakes, chickens and mice. Just don't try to race a cheetah.

现在，世界上跑得最快的人是来自牙买加的短跑运动员阿萨法·鲍威尔。他100米跑了9秒77。这大约是每秒10米或每小时36.8公里! 这只比大象快一点! 感觉慢吗?别难过，因为人类能跑过蛇、鸡和老鼠。 只是不要和猎豹赛跑。