首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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 surr
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 surr
admin
2016-08-30
64
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(北极)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(融化). 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(大片浮冰), 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.
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
细节题。从文章最后一段第二句这个组织的目标(aim)是拯救北极熊和它们赖以生存的家园。此题干中出现的mission和原文中的aim是同义转换。故选D。
转载请注明原文地址:https://kaotiyun.com/show/ESRO777K
0
成人本科学位英语
相关试题推荐
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolookat.Onlyrecently【C1】______cometo【C2】______s
Themeetingwillstartinafewminutes.You’re______tobehereafewminutesearlier.
Onesummerdaymyfathersentmetobuywireforourfarm.At16,Iliked【76】betterthandrivingourtruck,【77】thistimeIwasn
______thewhole,earlyAmericancityplanningwasexcellent.
Thegreatuseofaschooleducationis______toteachyouthings______teachyoutheartoflearning.
(Howevergood)(aremypaintings),Iam(conscious)thattheymay(leave)muchtobedesired.
—Thanksforinvitingmetodinnerlastnight,Cathy.Ihadareallygoodtime.Theseflowersareforyou.—Oh,Bill,______.I
______forthetimelyinvestmentfromthegeneralpublic,ourcompanywouldnotbesothrivingasitis.
Havingenteredtheroom,littleHansnoticedmanyofthevillagers______atthebackoftheclassroom.
W:Doyouknowthegirlinredunderthetree?M:【D1】______W:Right.Doyouknowher?M:Ofcourse.She’sLily.【D2】______W:I
随机试题
论述田汉在1927年4月以后的戏剧创作情况。
A.离心分离法B.水提醇沉法C.滤过分离法D.沉降分离法E.吸附澄清法
麻醉药品、精神药品、医疗用毒性药品、放射性药品、外用药品和非处方药品等国家规定有专用标识的,必须印有规定的标识的地方是()
如果是以某个固定时期作为基期的,我们常称为()。
在改扩建项目的费用和效益分析中,若改扩建与生产同时进行的项目,其停产或减产造成的损失,应()。
下列关于“荷兰式”与“美国式”招标方式中,正确的有()。Ⅰ.“荷兰式”招标的标的为利率时,最高中标利率为当期国债的票面利率Ⅱ.“荷兰式”招标中,标的为价格时,全场最高中标价格为当期国债发行价格Ⅲ.“美国式”招标中,标的
每一项成功的发明都体现了人类这一个整体在某一个特定时代和社会环境下的需求:人类不想多花时间在不必要的事情上,而这些发明则或多或少地提高了我们做事情的效率。说“追求懒惰或舒适”直接导致了发明的产生或许有失偏颇,但人类对于“省事”和“舒适”的追求是很多发明创造
2013年,Q区全年社会消费品零售总额416.1亿元,比上年增加58.3亿元,增长16.3%,完成零售总额超过全年目标0.3个百分点。全区社会消费品零售总额中,限额以上企业共完成148.1亿元,占35.6%。其中,国家标准企业实现社会消费品零售额95.5亿
若数据A持有事务T1所加的排它锁,那么其他事务对数据A(44)。
From:LindaSmithTo:ClariceByanSubject:ReportonEmployees’UseofTimeClarice,Iagreethatwasteofworktimeisas
最新回复
(
0
)