阅读理解
After years of heated debate, gray wolves were reintroduced to
Yellowstone National Park in1995.Fourteen wolves were caught in Canada and
transported to the park. By 2007, the Yellowstone wolf population had grown to
more than 170.
Gray wolves once roamed throughout the Yellowstone area. But they
were gradually displaced by human development and hunted by farmers for killing
livestock(牲畜). By the 1920s, wolves had practically
disappeared from the Yellowstone area. They moved farther north into the deep
forests of Canada, where there was less contact with humans.
The disappearance of the wolves had many consequences. Deer
populations — a major food source for the wolf — grew rapidly without their
usual enemy. These animals consumed large amounts of vegetation, which reduced
plant diversity in the park. In the absence of wolves, coyote(小野狼) populations also grew quickly. The coyotes killed a large
percentage of the park's red foxes.
As early as 1966, biologists asked the government to consider
reintroducing wolves into Yellowstone, hoping that they would be able to control
the deer and coyote problems. Many farmers opposed the plan, worrying that
wolves would kill their livestock or pets. Other people feared that the wolves
would not be well-protected in Yellowstone.
The government spent nearly 30 years coming up with a plan to
reintroduce the wolves. They included many compromises to help people accept
the wolves' presence. For example, they promised to pay farmers for livestock
killed by wolves.
The U.S. Fish and Wildlife Service carefully monitors and manages
the wolves in Yellowstone. Certain wolves wear special collars to help
biologists gather information about how the wolves live, hunt, and reproduce. Each
year the wolf population is counted.
Today, the debate continues over how well the gray wolf is fitting
in at Yellowstone. Deer and coyote populations are down, while 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 paragraph 2 mainly about?
A . Why gray wolves became a danger to farmers.
B . What gray wolves preferred about living in Canada.
C . How gray wolves were forced out of their original homes.
D . When gray wolves were gradually reintroduced to Yellowstone.
(2)
How is paragraph 3 developed?
A . By making comparisons.
B . By explaining cause and effect.
C . By listing events in time order.
D . By using statistics and examples.
(3)
Why did biologists suggest the reintroduction of wolves into Yellowstone?
A . To reduce the park's plant diversity.
B . To protect the wolves from dying out.
C . To control the local livestock problem.
D . To limit the deer and coyote populations.
(4)
Which statement best summarizes the writer's viewpoint?
A . Wolves are an important part of American national parks.
B . Yellowstone's wolf reintroduction program was a mistake.
C . The government should be responsible for reintroducing wolves.
D . Yellowstone's wolf program has benefited the wolves and the park.
答案: C
B
D
D