Fast and Faster

Fast and Faster. Written by Katherine Follett.

快呀，更快呀。 作者：凯瑟琳·福利特。

How fast? How fast can you run? How fast can you swim? Humans are slow compared to some animals. Which animals are the fastest?

有多快呢？ 你能跑多快？ 你能游多快？ 和有些动物比起来，人类的速度可慢啦。 那哪些动物的速度最快呀？

Running The fastest runner is the cheetah. It can go as fast as a car on a highway Cheetahs can only run that speed for a short time though They sprint to catch prey

奔跑篇 跑得最快的动物是猎豹， 它的速度和高速公路上的汽车一样快哦。 不过猎豹只能短时间保持这么快的速度。 它们猛冲是为了捕捉猎物。

Cheetahs eat gazelles which are not quite as fast as cheetahs. Gazelles can run fast for a longer time though.

猎豹捕食瞪羚，瞪羚的速度可比猎豹慢一点。 不过瞪羚能长时间保持快速奔跑哦。

Small animals are slower than big animals, but some go fast for their size. The tiger beetle runs 170 times the length of its body in one second. If humans could do that, they could race jet planes.

小动物比大动物跑得慢，但有些小动物按自身的体型比例来说速度可快啦。 虎甲一秒钟能跑出相当于自己身长170倍的距离。 要是人类能做到这一点，都可以和喷气式飞机赛跑啦。

Swimming. Turtles are slow on land, yet the world's fastest reptile is a turtle. It can swim four times as fast as a human.

游泳篇。 乌龟在陆地上爬得很慢，但世界上速度最快的爬行动物就是海龟哦。 它游泳的速度是人类的四倍哦。