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
2015-11-16
36
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(大片浮水), 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.
The word "cubs"in the fourth paragraph is closest in meaning to______.
选项
A、adults
B、babies
C、hunters
D、enemies
答案
B
解析
词汇理解题。阅读理解中的词汇题考的永远不是词汇本身,而是联系上下文对文章的理解。因此找到包含考查词汇的句子后,要先通读整个句子。我们在这个句子中发现cubs之后出现their mothers,可以推断,cubs和mothers是相对应的,因此意思是“孩子”。故选B。
转载请注明原文地址:https://kaotiyun.com/show/QGRO777K
0
成人本科学位英语
相关试题推荐
Musiccomesinmanyforms;mostcountrieshaveastyleoftheirown.(56)themmofthecenturywhenjazzwasborn,Americahad
Englandisnotabigcountry:fromnorthtosouthandfromeasttowestitisonlyaboutthreehundredmilesacross.(76)Butfo
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Hardlyhadhefinishedhisspeech______theaudiencestartedcheering.
Incomputerprogramming,thismodelis______toanyoftheotherswehaveeverhad.
Ididn’tgototheparty,butIdowishI______there.
Burney:Thereweretwomen,Ithink.No,three.Theyranintothebankandtheonewiththegun,thetallone,herunsuptothe
Whensheheardthebadnews,she______completely.
Thecarwasrepairedbutnotquitetomy______.
随机试题
诗句“行路难,行路难,多歧路,今安在”属于间接抒情。()
透皮给药系统中加入月桂氮酮的作用是
生产中对动物皮毛进行炭疽检疫应用的方法是
腕横纹尺侧端,尺侧腕屈肌腱桡侧凹陷中的腧穴是( )。
案情:2005年1月1日,甲与乙口头约定,甲承租乙的一套别墅,租期为五年,租金一次付清,交付租金后即可入住。洽谈时,乙告诉甲屋顶有漏水现象。为了尽快与女友丙结婚共同生活,甲对此未置可否,付清租金后与丙入住并办理了结婚登记。入住后不久别墅屋顶果然漏水,甲要求
根据《消费者权益保护法》的规定,()不违反消费者权益保护法律制度。
(河南选调生2010—34)3,5,4,()
求
ApaperinTheLancet,shamelesslytimedtocoincidewiththeOlympicgames,comparescountries’ratesofphysicalactivity.The
詹姆斯.马丁将计算机的数据环境分成四种类型,并认为清楚地了解它们之间的区别是很重要的。这四种类型按照管理层次从低到高排列,正确的是(29)。
最新回复
(
0
)