小学英语分级悦读 五年级下册

6.Shh! Be quiet!

[00:02.70]6.Shh! Be quiet!
[00:08.16]How do animals sleep in the wild? Some animals sleep standing up, others even sleep while swimming or flying! 
[00:20.78]So strange! Look, they are sleeping! Be quiet!
[00:29.87]An owl is sleeping with one eye open.
[00:35.70]A fish is sleeping with two eyes open. 
[00:39.63]A crane is sleeping. Look! It's standing on one leg.
[00:47.61]A hedgehog is sleeping. It likes to roll into a ball.
[00:54.57]A bat is sleeping. Its feet hook on a rock or a branch.
[01:02.57]A koala is sleeping. It's hugging a branch. How cute!