完形填空
The 1 is getting colder, and soon winter 2 shorter. We live in warm houses and we 3 thick coats when we go outside. But 4 do animals stay warm in winter?
Adapt(适应)
Some animals keep 5 in winter, so they must adapt to the changing weather. 6 warm, they may grow new, thicker fur in 7 autumn.
Migrate(迁徙)
Some of the animals migrate. That means they travel to other places 8 the weather is warm or they can find food.
Hibernate(冬眠)
Some animals hibernate for part or 9 of the winter. These animals usually find a cave or a hole under the ground to spend their winter. The body temperature of the animals drops, their heart beats more slowly and they breathe 10 .
