American black bears appear in a variety of colors
despite(尽管) their name. In the eastern part, 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(胎), 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 and rarely dangerous, but if attacked, most can climb trees or cover
ground at great speed. When angry or frightened, they are formidable(可怕的) enemies.
Black bears feed on leaves, roots, fruit, insects,
fish, and even larger animals. One of the most interesting characteristics of
bears, including the black bear, is their winter sleep. Unlike squirrels and
many other woodland animals, bears do not actually sleep through the winter
months. Although the bear does not eat during the winter months, sustaining(维持) 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 the mating(交配) season. They prefer to live in caves. Baby black
bears are born in January or February after a gestation(怀孕) period of six to nine months, and they stay 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
some nature reserves.
1.American black bears may have ___________ colours
according to the passage.
A.four B.five C.six D.seven
2.Black bears have a good sense of _________.
A.hearing B.smell C.eyesight D.taste
3.Which of the following statements is RIGHT?
A.Black bears
sleep through the winter months.
B.Black bears
can live up to 30 years old.
C.Black bears
are the smallest bears in the world.
D.Most black
bears live in a group.
4.What does the underlined word “enemies” refer to?
A.Black bears’ enemies. B.Black bears.
C.Other large
animals. D.American
bears.
5.We cannot read the passage ___________.
A.in a
newspaper B.on the
Internet
C.in a book D.in an
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