C

After years of heated debate, gray wolves werereintroduced to Yellowstone National Park. Fourteen wolves were caught inCanada and transported to the park. By last year, the Yellowstone wolfpopulation had grown to more than 170 wolves.

Gray wolves once were seen here and there in theYellowstone area and much of the continental United States, but they weregradually displaced by human development. By the 1920s, wolves hadpractically disappeared from the Yellowstone area. They went farther north intothe deep forests of Canada, where there were fewer humans around.

The disappearance of the wolves had many unexpectedresults. Deer and elk populations — major food sources (来源) for the wolf — grew rapidly. These animalsconsumed 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 ofthe park’s red foxes, and completely drove away the park’s beavers.

As early as 1966, biologists asked the government to considerreintroducing wolves to Yellowstone Park. They hoped that wolves would be ableto control the elk and coyote problems. Many farmers opposed the plan becausethey feared that wolves would kill their farm animals or pets.

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Thegovernment spent nearly 30 years coming up with a plan to reintroduce thewolvers. The U.S. Fish and Wildlife Service carefully monitors and manages thewolf packs in Yellowstone. Today, the debate continues over how well the graywolf is fitting in at Yellowstone. Elk, deer, and coyote populations are down, whilebeavers and red foxes have made a comeback. The Yellowstone wolf project hasbeen a valuable experiment to help biologists decide whether to reintroducewolves to other parts of the country as well.

(28)What is the textmainly about?

A. Wildlife research in the United States.

B. Plant diversity inthe Yellowstone area.

C. The conflict between farmers and gray wolves.

D. Thereintroduction of wolves to Yellowstone Park.

(29) What doesthe underlined word "displaced" in paragraph 2mean?

A. Tested.    B. Separated.    C. Forcedout.    D. Tracked down.

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(30)What did thedisappearance of gray wolves bring about?

A. Damage to local ecology.

B. Adecline in the park’s income.

C. Preservation of vegetation.

D. An increase in thevariety of animals.

(31) What is the author’s attitude towards theYellowstone wolf project?

A. Doubtful.    B. Positive.    C. Disapproving.    D. Uncaring.

答案

(28)D(29)C(30)A(31)B

解析

(28)文章开门见山提出黄石公园引进灰狼，然后追述原因和转机，由此得出文章中心话题是引进灰狼。

(29)根据段落后两句内容，人类发展侵占灰狼生活领域，灰狼北迁，得出灰狼被人类排挤。

(30)根据第三段，灰狼减少，鹿群增多，植被破坏，土狼激增，猎杀赤狐，赶走海狸，所以灰狼消失导致当地生态平衡破坏。

(31)根据文章末段的最后一句可知，作者认为引进灰狼的项目是很有价值的实验，因此可推知作者对这一举措持肯定的态度。

考查方向

(28)本题考查了学生归纳概括的能力。

(29)本题考查了学生词义推断能力。

(30)本题考查了学生推理判断能力。

(31)本题考查了学生推理判断的能力。

解题思路

(28)主旨大意题。抓住文章主旨、紧扣作者思维模式找突破口，把握文章整体架构，归纳概括。

(29)词义猜测题，结合上下文，推敲缺失意思，结合自身词汇储备，确定词义。

(30)推理判断题。抓住文章主旨、紧扣作者思维模式找突破口。

(31)推理判断题。抓住文章主旨、紧扣作者思维模式找突破口。

易错点

(28)把握不住文章架构。

(29)把握不住细节信息。

(30)把握不住相关要点。

(31)把握不住相关要点。