美洲黑熊英語六級作文

　　american black bears appear in a variety of colors despite their name. in the eastern part of their range, most of these 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 si 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. 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 during the winter moths, 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, ecept during mating season. they prefer to live in caves, hollow logs, or dense thickets. a little of one to four cubs is born in january or february after a gestation period of si 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.

【美洲黑熊英語六級作文】相關文章：

小花熊和小黑熊教案計劃06-13

英語六級作文07-28

英語六級作文06-14

英語六級的作文05-15

公共英語五級閱讀文章《美國黑熊》08-04

英語六級作文經典句型03-18

英語六級作文解讀06-15

英語六級作文范文精選02-14

英語六級作文預測06-05