Question

【題目】閱讀理解
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 (來源) 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】本文介紹灰狼被重新引入黃石國家公園以及帶來的良好效果。
⑴主旨大意。 這是一篇環(huán)保類文章，在開頭就提出本文的中心。根據(jù)第一段介紹可知狼被重新引入黃石國家公園并且得以繁衍，平衡了生態(tài)。故選D。
⑵詞義猜測。test檢驗；separate分離；force out把……趕走；track down追尋；查獲。根據(jù)句意：灰狼曾經(jīng)在黃石公園地區(qū)和美國大陸隨處可見，但是隨著人類的發(fā)展他們被逐漸的……了。故選C。
⑶推理判斷。A.當(dāng)?shù)厣鷳B(tài)的破壞；B.公園的收入下降；C.植被的保護；D.動物多樣性的增加。根據(jù)第三段描寫可知：灰狼的消失帶來了很多出乎意料的后果：鹿的數(shù)量快速增加、公園里的植被種群減少、叢林狼快速增加，叢林狼獵殺大量紅狐貍，徹底趕走了公園里的河貍。所以灰狼的消失對當(dāng)?shù)氐纳鷳B(tài)造成了破壞。故選A。
⑷觀點態(tài)度。根據(jù)最后一句話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. 可知黃石公園狼的項目對于生物學(xué)家們決定是否在美國其他地區(qū)也引進狼的決定是一個非常有價值的實驗。通過形容詞valuable可以看出作者是一種支持、贊賞的態(tài)度。故選B。