Question

【题目】阅读理解
C
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.
Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.
The disappearance of the wolves had many unexpected results. Deer and elk populations — major food sources (来源) for the wolf – grew rapidly. These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park' s red foxes, and completely drove away the park' s beavers.
As early as 1966,biologists asked the government to consider reintroducing wolves to Yellowstone Park.They hoped that wolves would be able to control the elk and coyote problems.Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.
The government spent nearly 30 years coming up with a plan to reintroduce the wolves. The U.S.Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk,deer,and coyote populations are down,while beavers and red foxes have made a comeback.The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
（1）What is the text mainly about?
A.Wildlife research in the United States.
B.Plant diversity in the Yellowstone area.
C.The conflict between farmers and gray wolves.
D.The reintroduction of wolves to Yellowstone Park.
（2）What does the underlined word “displaced” in paragraph 2 mean?
A.Tested.
B.Separated.
C.Forced out.
D.Tracked down.
（3）What did the disappearance of gray wolves bring about？
A.Damage to local ecology.
B.A decline in the park's income.
C.Preservation of vegetation.
D.An increase in the variety of animals.
（4）What is the author's attitude towards the Yellowstone wolf project？
A.Doubtful.
B.Positive.
C.Disapproving.
D.Uncaring.

Answer 1

【答案】
（1）D
（2）C
（3）A
（4）B
【解析】本文介绍灰狼被重新引入黄石国家公园以及带来的良好效果。
⑴主旨大意。 这是一篇环保类文章，在开头就提出本文的中心。根据第一段介绍可知狼被重新引入黄石国家公园并且得以繁衍，平衡了生态。故选D。
⑵词义猜测。test检验；separate分离；force out把……赶走；track down追寻；查获。根据句意：灰狼曾经在黄石公园地区和美国大陆随处可见，但是随着人类的发展他们被逐渐的……了。故选C。
⑶推理判断。A.当地生态的破坏；B.公园的收入下降；C.植被的保护；D.动物多样性的增加。根据第三段描写可知：灰狼的消失带来了很多出乎意料的后果：鹿的数量快速增加、公园里的植被种群减少、丛林狼快速增加，丛林狼猎杀大量红狐狸，彻底赶走了公园里的河狸。所以灰狼的消失对当地的生态造成了破坏。故选A。
⑷观点态度。根据最后一句话The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well. 可知黄石公园狼的项目对于生物学家们决定是否在美国其他地区也引进狼的决定是一个非常有价值的实验。通过形容词valuable可以看出作者是一种支持、赞赏的态度。故选B。