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
2018-02-03
65
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.
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
词义词汇题。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://www.kaotiyun.com/show/5fCO777K
0
成人本科学位英语
相关试题推荐
SpeakerA:Ihaven’tseenyouforages.Youhaven’tbeensick,haveyou?SpeakerB:______
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlywiththehelpofwords,butalsoinmany【C2】______way
Thefacesofelderly,happily-marriedpeoplesometimesresembleeachother.Dr.Aikenstudiedanumberofcoupleswhohadbeenm
Lookinghackonmychildhood,Iamconvincedthatnaturalistsarebornandnotmade.Althoughwewereallbroughtupinthesame
Notoncesincemysonwenttohighschool______travelingwithhim.
Dancy:Hello,Fred.What’swrongwithyourarm?Fred:IbrokeitwhenIwasskatingduringtheholiday.Dancy:Oh,No!Fred:Much
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociol
Skatingcanbegoodforyou________correctly.
WhatarethedifferencesbetweenpublicandprivateinAmericanhighereducation?Abigdifferenceinvolvesmoney.Publiccolleg
随机试题
EveryoneknowshowtogettoCarnegieHall:practice,practice,practice.Butwhatabouthowtogetintothenation’smosthonor
1987年的《瑞士联邦国际私法法规》第52条明确指出“婚姻财产适用_____。”
某中国境内的公办大学要建立WWW网站,一般来说其域名的后缀应该是____。
下列有关尼可刹米的叙述正确的是
犬,7岁,雄性,近日在肛门旁出现无热、无痛、界限明显、柔软肿胀物,大小便不畅。该病最可能的诊断是
A.环氧酶抑制剂B.二磷酸腺苷P2Y12受体阻断剂C.整合素受体抑制剂D.磷酸二酯酶抑制剂E.血小板腺苷环化酶刺激剂阿昔单抗属于()。
在工业生产中,设置防爆墙、防火门等主要是应用()预防伤亡事故。
财务成果的计算和处理一般包括()。
某汽车厂在生产过程中引进先进的生产设备,极大地提高了劳动生产率。如果假定工人的劳动量不变,那么在单位劳动时间内生产的商品数量和价值量之间的变化为()。
Thequestionofwhetherlanguagesshapethewaywethinkgobackcenturies;Charlemagneproclaimedthat"tohaveasecond【S1】
最新回复
(
0
)