1. Bears are very inquisitive and must be kept mentally stimulated.
熊非常好奇,必须不断地给予其智力上的刺激。
2. The bear exposed its teeth in a muffled growl.
那只熊龇出牙齿,发出一声低沉的吼叫。
3. Neanderthal man was able to kill woolly mammoths and bears.
尼安德特人能够捕杀浑身覆毛的猛犸象和熊。
4. There are all sorts of animals, including bears, pigs, kangaroos, and penguins.
有各种各样的动物,包括熊、猪、袋鼠和企鹅。
5. He had been mauled by a bear.
他被熊袭击过。
6. Bruce graduated to chef at the Bear Hotel.
布鲁斯晋升为大熊饭店的厨师长。
7. Bears wake up in the spring after a winter of hibernation.
熊经过一个冬天的冬眠后在春季苏醒.
8. The hunters lured the bears on to certain death.
猎人引诱那些熊送死.
9. The bears feed voraciously in summer and store energy as fat.
熊在夏季吃很多东西,以脂肪形式储存能量.
10. This bear feeds off the leaves of the tree.
这只熊依靠这棵树的树叶生存.
11. Bears hole up for the winter to go by.
熊蛰伏在穴中过冬.
12. Let's act out the story of the three bears once more.
让我们再次表演一下三只熊的 故事 .
13. The girl blanched with fear when she saw the bear coming.
那女孩见熊(向她)走来,吓得脸都白了.
14. The bear's chest is hairy.
那只熊的胸部毛茸茸的.
15. The bear was a fully grown adult.
那只熊已完全发育成熟.
American black bears appear in a variety of colors despite their name. In th 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 alomost 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.