首页
登录
职称英语
The return of wolves benefits the grizzly bears because______. [originaltext]
The return of wolves benefits the grizzly bears because______. [originaltext]
游客
2023-12-05
14
管理
问题
The return of wolves benefits the grizzly bears because______.
(3 - 1)Scientists say the return of wolves to Yellowstone National Park in the American state of Wyoming has boosted the diet of a rival predator, the grizzly bear.
Wolves returned to Yellowstone nearly 20 years ago, put back into the wild to prey on the growing elk population. Elk were overgrazing the grassland, causing damage to the precious ecosystem. Now scientists say the wolves have had benefits for another predator, the grizzly bear.(3 - 2)Trees and shrubs are springing back up, bearing nutritious berries, a valuable food source for the grizzly bear. Wild fruits are a key part of the bear’s diet as it gains weight before hibernating.
选项
A、wild fruits grew very well
B、elk population was increasing
C、precious eco-system was damaged
D、grizzly bears preyed on elks
答案
A
解析
本题设题点在新闻导语与结尾处。根据句(3—1)可知,科学家们认为狼群回归黄石国家公园大大提高了竞争对手捕食者——灰熊的饮食。由句(3—2)可知,灰熊最重要的食物是野生的水果,故答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3246062.html
相关试题推荐
Whatdoesthemando?[originaltext]W:[1]TodayMr.Boormanisinvitedhereto
[originaltext](I—Interviewer;D—David)I:Whicharea,ofalltheonesthat
[originaltext](I—Interviewer;D—David)I:Whicharea,ofalltheonesthat
[originaltext](I—Interviewer;D—David)I:Whicharea,ofalltheonesthat
WhichofthefollowingwasNOTontheagendaoftheG20meeting?[originaltext]
[originaltext]Nicole:You’vebecomewidelyknownintheteachingcommunityfor
[originaltext]Nicole:You’vebecomewidelyknownintheteachingcommunityfor
【1】[br]【10】[originaltext]Note-takingisacomplexactivitywhichrequires
【1】[br]【7】[originaltext]Note-takingisacomplexactivitywhichrequires
【1】[br]【4】[originaltext]Note-takingisacomplexactivitywhichrequires
随机试题
Infuturetradethekeydevelopmenttowatchistherelationshipbetweenthe
In1924America’sNationalResearchCouncilsenttwoengineerstosupervise
在处理所谓外部引进人才——“空降兵”与内部培养人才——“子弟兵”的关系上,有许多
2016年面试热点:一个月不碰手机电脑的寒假作业,你hold住吗 面试
红细胞渗透脆性升高主要见于A.珠蛋白生成障碍性贫血B.镰形细胞性贫血C.阻塞性黄
)王某于2012年7月在甲期货公司从事过五笔小麦期货合约交易,2013年6月,经
10号标准化扩孔钻和锉的尖端直径和刃部末端直径为A.0.01mm和0.40mm
在工程变更价款的确定中,材料、施工工艺和方法相似,不增加关键线路上工程的施工时间
500kV线路海拔不超过1000m时,工频要求的悬垂绝缘子片数为28片。请计算海
女,35岁,近2月来发热,乏力伴消瘦。体检:左颈、二侧腋窝和腹股沟部位可触及数个
最新回复
(
0
)