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
Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos【B1】______b
Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos【B1】______b
admin
2014-05-30
49
问题
Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos【B1】______by America’s space agency, NASA, illustrate the fearful【B2】______to such bears. An image shows the amount of Arctic Sea ice in 1979. Another image shows the record minimum set this year on September 16th. The shrinkage is【B3】______an area greater than Texas, an impossible distance for even the【B4】______polar bear to swim.
Scientists say fossil fuels are increasing carbon【B5】______in the atmosphere. This not only warms the oceans, but threatens biodiversity in cold and warm waters alike. As the carbon dioxide is increased in the atmosphere, a high【B6】______, about 40 percent of that, goes back into the ocean, and so it’s increasing the acid content of the ocean and that’s threatening fisheries.
Scientists at a recent conference at Columbia University’s Earth Institute said less ice【B7】______draw some shipping away from the Panama Canal. This is because a northern route, though still risky, reduces the distance between Europe and Asia by about 6,500 kilometers.
Countries【B8】______the Arctic are not the only ones with interests there. There certainly will be interest in the Arctic from nations that don’t touch physically on the Arctic; that’s very clear for natural resources, for fishing, for【B9】______reasons. Energy supplies are among those reasons. Scientists say more open water in the Arctic means more gas from water and extreme weather elsewhere.
The Arctic is far from most of the world’s population. However, scientists【B10】______that distance is no guarantee people will be spared the effects of warming in the planet’s northernmost regions.
【B2】
Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos(26)released by America’s space agency, NASA, illustrate the fearful(27)threat to such bears. An image shows the amount of Arctic Sea ice in 1979. Another image shows the record minimum set this year on September 16th. The shrinkage is(28)equivalent to an area greater than Texas, an impossible distance for even the(29)mightiest polar bear to swim.
Scientists say fossil fuels are increasing carbon(30)emissions in the atmosphere. This not only warms the oceans, but threatens biodiversity in cold and warm waters alike. As the carbon dioxide is increased in the atmosphere, a high(31)proportion, about 40 percent of that, goes back into the ocean, and so it’s increasing the acid content of the ocean and that’s threatening fisheries.
Scientists at a recent conference at Columbia University’s Earth Institute said less ice(32)is likely to draw some shipping away from the Panama Canal. This is because a northern route, though still risky, reduces the distance between Europe and Asia by about 6,500 kilometers.
Countries(33)bordering the Arctic are not the only ones with interests there. There certainly will be interest in the Arctic from nations that don’t touch physically on the Arctic; that’s very clear for natural resources, for fishing, for(34)a variety of reasons. Energy supplies are among those reasons. Scientists say more open water in the Arctic means more gas from water and extreme weather elsewhere.
The Arctic is far from most of the world’s population. However, scientists(35)caution that distance is no guarantee people will be spared the effects of warming in the planet’s northernmost regions.
选项
答案
threat
解析
此处应填入一个名词,作illustrate的宾语。threat意为“危险,威胁”。
转载请注明原文地址:https://kaotiyun.com/show/4Iv7777K
0
大学英语四级
相关试题推荐
SoonafterstartinghisjobassupervisoroftheMemphis,Tenn.,publicschools,KrinerCashorderedanassessmentofhisnewdi
TheAntarcticozone(臭氧)holeischangingweatherpatternsacrosstheSouthernHemisphere(半球),evenaffectingthetropics,scienti
Althoughthestigma(耻辱)onceassociatedwithmentalillnesshasgraduallygoneawayinrecentyears,mostoftheAmericanswhoha
Americanshavelongpridedthemselvesasbeingpartofanoptimisticsociety.ButanewresearchdescribesAmericansaspessimis
A、Liftingyoursoupbowltoyourmouth.B、Makinganoisewheneating.C、Raisingyourelbowstotheshoulder.D、Puttingyourelbo
A、HehaseverworkedinAmerica.B、Hehastaughttennisintheuniversityteam.C、Hehastaughtsportsatasummerschool.D、He
Nowadayspeoplehaveincreasinglybecomeawareoftheneedtochangetheireatinghabits,becausemuchofthefoodtheyeat,par
A、Heneedsmoretimeforthereport.B、Heneedshelptointerpretthedata.C、Heissorrynottohavehelpedthewoman.D、Hedoe
HeDrewlikeanAngelA)ThroughouthislifeLeonardodaVinciwastroubledbyasenseoffailure,incompletionandtimewasted.
A、Partofthedriedmushroomshavebeguntodecay.B、Thedriedmushroomsdidn’tarriveontime.C、Partofthedriedmushroomswe
随机试题
TheseOrangestaste______.
女性,35岁,腰痛、尿频、尿痛3天,近3年来反复出现类似症状。尿常规:WBC30~40/HP,RBC20~30/HP。中段尿培养有细菌生长。肾脏B超:双侧肾可见与肾锥体分布一致的强回声团,呈放射状排列,见多个小结石。1年前IVP示:双侧肾脏见多数囊肿和扩张
首先考虑若器械进入宫腔出现"无底"的感觉,考虑可能发生
下列选项中,不属于土沟实测项目的是()。
下列关于凭证审核和记账操作的说法中,正确的是()。
下列关于城建税的税收优惠表述正确的有()。
长江上市公司(以下简称长江公司)拥有一条由专利权A、设备B以及设备C组成的生产线,专门用于生产产品甲。该生产线于2010年1月投产,至2016年12月31日已连续生产7年;由设备D、设备E和商誉的生产线(是2015年吸收合并组成的),专门用于生产产品乙,长
金融机构的高杠杆性表现在衍生金融工具以小博大以及金融机构的高资产负债率上。()
履行执行户口管理制度,做好户籍管理和人口统计工作,负责管理户籍、掌握户口动态等户政工作的人民警察属于()。
000047机密★三年特急
最新回复
(
0
)