高中英语人教版高三1 12

[05:54.95]the body makes of food--to supply the energy for movement.
[06:01.51]We have seen that the hibernating animal reduces movement
[06:07.39]to far below the ordinary level.
[06:11.33]Even the movements of the heart and lungs atr greatly reduced.
[06:17.50]The animal hardly makes any movement,hardly uses any energy,
[06:24.37]and hardly needs any food.
[06:28.31]Some animals,including some bears,only half-hibernate.
[06:35.47]That is to say,they sleep during the winter but their sleep is not such a deep one,
[06:43.72]and their body temperature does not drop
[06:48.27]In autumn the bear eats and eats and becomes very fat indeed.
[06:55.84]Its hair grows longer.Soon it has a thick covering of fat and fur.
[07:03.11]In November it finds a place in a cave
[07:07.96]or under a tree and just lies down and goes to sleep.
[07:13.89]On warm winter days it may think that spring has arrived;
[07:19.54]it gets up and walks around.
[07:23.69]When it sees that the snow is still thick on the ground,
[07:28.55]it quickly goes to sleep again.
[07:32.31]The squirrel is an animal which makes secret food stores for the winter.
[07:38.97]It hides large quantities of nuts inside trees.
[07:44.33]In old stories,the squirrel was usually described as a good animal:
[07:50.67]it saved something for the future.