单选题 Children's stories such as" Little Red Riding Hood" and" The Three Little Pigs" have depicted wolves as frightening animals. In reality, these animals are social, nurturing creatures. They often spend the better part of their day playing with and tending to their young.
There are two recognized species of wolves: the gray wolf and the red wolf. The grey wolf, is the largest member of the wolf family.
The grey wolf had one of the widest distributions of all mammals on the planet. It once roamed North America, Europe, and Asia, but years of persecution have reduced its numbers significantly, especially in Europe.
In Alaska, the northwest territories, and the former Soviet Union, the grey wolf has a thriving population. In the Northwest United States, however, the grey wolf is almost extinct, with a population of perhaps 30. Farther south in the United States the grey has disappeared completely. In Mexico, researchers estimated that fewer than 10 greys survive.
The grey wolf became extinct in England about 1486 ;it disappeared from Scotland in 1743 and from Ireland in 1770.

单选题 People knew the nature of wolf very well.
A. Right. B. Wrong. C. Doesn't say.
【正确答案】 B
【答案解析】[解析] 文中第一段可以看出,人类并没有很好地认识狼,一直把它当做一种很凶狠的动物,实际上它们也和人类一样有爱心。可知本句的说法是不正确的。
单选题 Once grey wolf could be found in many parts of the earth.
A. Right. B. Wrong. C. Doesn't say.
【正确答案】 A
【答案解析】[解析] 从本文的第二、第三段可以知道这种灰色的狼是狼类中数量最多的一类,它广泛存在于北美、欧洲和亚洲等地,所以句中的说法是正确的。
单选题 We can find more and more grey wolf in Alaska.
A. Right. B. Wrong. C. Doesn't say.
【正确答案】 A
【答案解析】[解析] 从文中第四段的第一句话可知此句话的说法是正确的。
单选题 There are less grey wolf in Europe than in the United States.
A. Right. B. Wrong. C. Doesn't say.
【正确答案】 C
【答案解析】[解析] 这篇文章并没有说在欧洲和美洲哪个地方灰狼更多。
单选题 Grey wolves take good care of the young.
A. Right. B. Wrong. C. Doesn't say.
【正确答案】 A
【答案解析】[解析] 从文中第一段可以知道,狼经常花大部分的时间和它们的孩子在一起。