小伙伴们，公共英语考试大家复习的怎么样了呢？下面是帮考网分享一些公共英语考试二级部分的复习资料，一起来看看吧！

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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、We cannot read the passage ___________.

A．in a newspaper

B．on the Internet

C．in a book

D．in an advertisement

答案：D

解析：这是一篇关于美国黑熊的文章，故有可能出自报纸，网络或者书籍。一般不会出现在广告当中，故选D。

2、American black bears may have ___________ colours according to the passage.

A．four

B．five

C．six

D．seven

答案：C

解析：根据短文第一段描述，可知美国熊可能有六种颜色，故选C。

3、Black bears have a good sense of _________.

A．hearing

B．smell

C．eyesight

D．taste

答案：B

解析：根据第二段are not as good as their sense of smell.描述，可知此处指的是他们的嗅觉很好，故选B。

4、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.

答案：B

解析：根据最后一段Black bears can live as long as thirty years in the wild,描述，可知选B。

5、What does the underlined word“enemies”refer to?

A．Black bears’enemies.

B．Black bears.

C．Other large animals.

D．American bears.

答案：B

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