首页
登录
职称英语
The top of the world is a wonderland. In winter, the temperature often falls
The top of the world is a wonderland. In winter, the temperature often falls
游客
2024-01-14
5
管理
问题
The top of the world is a wonderland. In winter, the temperature often falls to -30°F and the sun never rises. The ocean is surrounded by frozen ground. There are few people or trees, but to polar bears, the Arctic is home.
Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment. In fact, they need the Arctic sea ice for survival. But climate change is causing larger and larger areas of summer sea ice to melt. Experts say that if warming patterns continue, the Arctic could be free of summer sea ice by 2050. That may cause two-thirds of the word’ s 20, 000 polar bears to be gone by then too.
Polar bears can’ t survive for long on land. Seals are their main source of food. The only place where polar bears can hunt seals is on the ice. Although these bears are strong swimmers, they are no match for lightning swift seals in the water. A polar bear has brilliantly clever strategies to overcome this disadvantage. In winter the bear waits motionless beside a seal’ s breathing hole, which is a narrow tunnel through the ice. Often many hours pass before the seal comes up for air and the bear kills it with a powerful blow of its paw. In summer, the polar bears that live on land eat very little and wait for the sea ice to return.
With the sea ice forming later in the year and melting earlier, polar bears do not have enough opportunity to hunt and eat. Less sea ice makes it harder for the bears to catch the seals. The bears must swim longer distances between ice packs, and they can’ t always make it. The ice is also getting thinner. These conditions can cause polar-bear cubs to become separated from their mothers, who provide them with food.
Steven Amstrup is the chief scientist of Polar Bear International. The group aims to save the bears and their home. "The more people who see polar bears and understand their difficult situations, the better the chance we’ll alter our warming path in time to save them, " he says. [br] What’ s the mission of Polar Bears International?
选项
A、Saving energy.
B、Conducting scientific research.
C、Seeking international cooperation.
D、Saving polar bears and their home.
答案
D
解析
根据文章最后一段第二句“The group aims to save the bears and their home.”可知,这个组织的目标是拯救北极熊和它们赖以生存的家园。本题题干中出现的mission和原文中的aim是同义替换。故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3361729.html
相关试题推荐
Inwinterwego______onthehill.A、skiingB、toskiC、skiD、forskiA本题考查动词go的固定搭
Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfalls
Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfalls
Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfalls
Itwasacoldwinterday.AwomandroveuptotheRainbowBridgetollbooth(
Itwasacoldwinterday.AwomandroveuptotheRainbowBridgetollbooth(
Itwasacoldwinterday.AwomandroveuptotheRainbowBridgetollbooth(
Itwasacoldwinterday.AwomandroveuptotheRainbowBridgetollbooth(
Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfalls
Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfalls
随机试题
[originaltext](23)Atnoothertimeinrecenthistoryhasitbeeneasieror
Thenatureofsleepandtheroleitplaysinourliveshaslongfascinateds
他终于通过了自学考试。Hefinallypassedtheexaminationofself-studyprograms.“自学考试”不是self
[originaltext]TheoriginofEarth’smoon,thelargestmooninthesolarsys
专利代理机构对被代理人的发明创造内容,除专利申请已经公布或者公告的以外,负有保密
受贿罪和贪污罪的相同点有()。A.犯罪的客体相同 B.主观方面都是故意 C
计算设备进口环节增值税时,作为计算基数的计税价格包括()。A:外贸手续费 B
泰戈尔获诺贝尔文学奖的作品是()A.《吉檀迦利》 B.《新月集》 C.《沉
一个令人高兴的信息,会导致人们手舞足蹈,这是() A.兴奋的扩散B.兴奋的
下列关于商用房贷款期限调整的说法,不正确的是( )。A.期限调整包括延长期限和
最新回复
(
0
)