Do you know how animals spend their winter?The biggest problem for most animals inwinter is finding enough food.If an animal can not find enough insects or green plants and so on,it will choose to hibernate.This deep sleep helps them to save energy,

Do you know how animals spend their winter?The biggest problem for most animals inwinter is finding enough food.If an animal can not find enough insects or green plants and so on,it will choose to hibernate.This deep sleep helps them to save energy,
Do you know how animals spend their winter?The biggest problem for most animals in
winter is finding enough food.If an animal can not find enough insects or green plants and so on,it will choose to hibernate.This deep sleep helps them to save energy, and live through the winter with little or no food. Most hibernators prepare in some way for the winter. Some store food in their living places to eat when they awake for short periods. Many eat extra food in the fall. It is stored as body fat to be used later for energy. True hibernators go into such a deep sleep that they are difficult to wake and may appear dead. Their body temperature drops and breathing and heart beat slows down. If a hibernator'stemperature falls too low, it will awaken slightly and tremble to warm up a bit. The largest hibernators are the bears. Although a bear's heart rate may drop from a normal of 40-50 beats per minute down to 8-12,its temperature drops only slightly,allowing it to wake up quickly. These bears are also special because,unlike other hibernatiors, they do not ear or drink at all while hibernating, which can be as long as six months.新概念第二册第19课练习册短文,拜托哪位大神给翻译,请严谨些.

Do you know how animals spend their winter?The biggest problem for most animals inwinter is finding enough food.If an animal can not find enough insects or green plants and so on,it will choose to hibernate.This deep sleep helps them to save energy,
你知道动物们是怎样过冬的吗?对于大多数动物来说,过冬最大的问题是寻找足够的食物.如果一种动物不能找到足够的昆虫或者绿色植物等,它们将会选择冬眠.这种深度的睡眠可以帮助它们节省能量消耗,在有很少食物甚至没有食物的情况下活过整个冬天.一些动物会在它们的住所储存食物,并在它们短暂的醒过来的时刻进食.很多动物会在秋天吃很多额外的食物,以身体脂肪的形式储存下来,日后作为能量使用.真正的冬眠是一种很难醒来的深度睡眠,使这些动物看上去像死了一样.它们的体温下降,呼吸和心跳变慢.如果体温降到特别低,它们可能会轻微地醒来,颤抖一下,使体温上升.熊是最大的冬眠动物.虽然熊的心跳会从每分钟40-50次降低到每分钟8-12次,但它们的体温只有轻微的下降,使它们可以很快地醒来.这些熊很特别,因为它们不像其他冬眠动物那样,熊在冬眠期间不吃不喝,差不多持续六个月.