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℉ and the sun never rises. The ocean is surro
The top of the world is a wonderland. In winter, the temperature often falls to -30℉ and the sun never rises. The ocean is surro
admin
2022-10-01
57
问题
The top of the world is a wonderland. In winter, the temperature often falls to -30℉ 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
文章最后一段第二句“The group aims to save the bears and their home.”。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/7IcD777K
0
成人本科学位英语
相关试题推荐
Overthecourseofmanyyears,withoutmakinganygreatfussaboutit,theauthoritiesinNewYorkdisabledmostofthecontrol
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’s
WhydopeoplereadnegativeInternetcommentsanddootherthingsthatwillobviouslybepainful?Becausehumanshaveaninheren
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
Ittookdecadestoprovethatcigarettesmokingcausescancer,heartdisease,andearlydeath.Ittook【C1】________yearstoestab
Forty-threepercentofAmericanssaytheyaretootiredtofunction.So,somemornings,youmighteven【C1】________stayinginbed
Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【C1】________shouldbemad
Youhavereadanarticleinanewspaperwhichstatesthat"Childrenshouldbepaidfordoinghousework,forthishelpsthemtol
PepysandhiswifeJanehadaskedsomefriendstodinneronSunday,September2nd,1666.TheywereupverylateontheSaturday
随机试题
腰淋巴结收纳
下列关于奇经八脉的描述正确的是
某软土地基拟采用堆载预压法进行加固,已知在工作荷载作用下软土地基的最终固结沉降量为248cm,在某一超载预压荷载作用下软土的最终固结沉降量为260cm。如果要求该软土地基在工作荷载作用下工后沉降量小于15cm,问在该超载预压荷载作用下软土地基的平均固结度应
用金属薄板作保冷结构的保护层时,保护层接缝处的连接方法除咬口连接外,还宜采用的连接方法为()。
某城市道路工程项目,施工承包商考虑到该工程受自然条件的影响较大,为了充分利用有限资金,以最快的速度、最少的消耗确保工程优质,创造最好的经济效益和社会效益,加强了对前期质量控制工作。具体控制工作如下:(1)对道路工程前期水文、地质进行实地调查。调查主
结果导向型的绩效考评方法不包括()。
推动教师专业发展的巨大动力是()。
从头开始是人生经常可能遇到的境况。大至地震,战争,国破家亡,死里逃生,事业一败涂地。小至丧偶,失恋,经济破产,钱财被窃,身上一文不名。凡此种种,皆会使你不同程度地产生一种废墟感。当此之时,最健康的心态便是忘掉你曾经拥有的一切,忘掉你所遭受的损失,就当你是赤
(2011年真题)抵押期间,抵押财产毁损、灭失或者被征收等,抵押权人可以就获得的保险金、赔偿金或者补偿金等优先受偿。这体现了担保物权的()。
(92年)级数(常数α>0)
最新回复
(
0
)