高考英语阅读：保护野生动物，我们一直在努力！
After years of heated debate，Gray wolves were reintroduced to yellow stone national park . fourteen wolves were caught in Canada and transporteen
gray Wolves once were seen here and there in the yellow stone area and much of the continental United States，But they were gradually displaced by hy
the disappearance of the wolves had many unexpected results . deer and elk populations-major food sources(来源)For the wolf-grew raw
As early as 1966，Biologists asked the government to consider reintroducing wolves to yellow stone park . they hoped that wolves would be able to CCO
The government spent nearly 30 years coming up with a plan to reintroduce The WOL vers . The u . s . fish and wildlife service carefully moning The wolf polf
28 . what is the text mainly about？
A.wild life research in the United States。
B.plant diversity in the Yellowstone区域。
C.the conflict between farmers and gray wolves .
D.the re introduction of wolves to Yellowstone park。
29.what does the underlined word " displaced " in paragraph 2 mean？
A.tested . b . separated . c . force dout . d . tracked down .
30.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。
31.what is the author ' s attitude towards the yellow stone wolf project？
A.doubtful . b . positive . c . disa pproving . d . uncaring .
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