解放军文职招聘考试American Black Bears

 American Black Bears

American black bears appear in a variety of colors despite their name. In

the eastern part of their range, most of     these bears have shiny black fur,

but in the west they grow brown, red, or even yellow coats. To the north,

the  black bear is actually gray or white in color. Even in the same litter,

both brown and black furred bears may be      born.

Black bears are the smallest of all American bears, ranging in length from

five to six feet, weighing from three    hundred to five hundred pounds. Their

eyes and ears are small and their eyesight and hearing are not as good as  

their sense of smell.

Like all bears, the black bear is timid, clumsy, and rarely dangerous, but

if attacked, most can climb trees and  cover  ground at  great speeds. When 

angry or frightened,  it is a formidable enemy.

Black bears feed on leaves, herbs, roots, fruit, berries, insects, fish,

and even larger animals. One of the most interesting characteristics of

bears, including the black bear, is their winter sleep. Unlike  squirrels, 

  woodchucks,  and  many  other  woodland  animals,  bears  do  not 

actually

hibernate. Although the bear does not eat during the winter months,

sustaining itself from body fat, its temperature remains almost normal, and

it breathes   regularly four or five times per minute.

Most black bears live  alone,  except  during mating season. They  prefer

to live  in  caves, hollow logs, or dense   thickets. A litter of one to four

cubs is born in January or February after a gestation period of six to nine   

months, and they remain with their  mother until they are fully grown or

about one and a half years old. Black bears can live as long as thirty

years in the wild, and even longer in game preserves set aside for them.

美国黑熊

美国黑熊虽然被叫做黑熊但却有各种各样的颜色。  在它们生活区域的东部，大部分黑 熊长有富有光泽的黑毛，但在西部，他们则长着棕色、红色甚至是黄色的毛。 

在北部，黑 熊其实长着灰色或白色的毛。 就是在一胎所生的小熊中，都可能混杂棕毛和黑毛。 黑熊是 所有美洲熊中最小的，5～6 英尺长，300～500

磅重。  它们的眼睛和耳朵都很小，他们的视 力和听觉不如嗅觉那样好。  像所有的熊一样，黑熊胆小，笨拙，很少具有危险性。  但如果

受到攻击，大部分黑熊会以很快的速度爬上树和奔跑。  当发怒或受惊吓时，黑熊会成为可 怕的对手。 

黑熊以树叶、草、树根、水果、浆果、昆虫、鱼，甚至更大的动物为食。  熊类， 包括黑熊的最有趣的一个特点是他们的冬眠。 

与松鼠、旱獭和其它别的林地动物不同，熊 并不真正地冬眠。  虽然熊在冬天的几个月中不吃东西，靠体内脂肪维持生命，但它们的体

温保持正常，并有规律地一分钟呼吸 4 或 5 次。除交配季节外，大多数黑熊独自生活。  他 们喜欢住在洞里、空心的大木头里或茂密的树丛里。  经过 6

到 9 个月的怀孕期后一胎 1～4 个小熊在 1 月或 2 月出生。  它们同母熊住在一起，直到它们完全长大，即 1 岁半左右。  黑

熊在野外可以活到长达 30 年，在专门的保护区中甚至能活得更长。