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
2013-10-17
32
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【B3】______set this year on September 16th. The shrinkage is【B4】______to an area greater than Texas, an impossible distance for even the【B5】______polar bear to swim.
Scientists say fossil fuels are increasing carbon【B6】______ 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【B7】______, about 40 percent of that, goes back into the ocean, and so it’s increasing the acid【B8】______of the ocean and that’s threatening fisheries.
Scientists at a recent conference at Columbia University’s Earth Institute said【B9】______. This is because a northern route, though still risky, reduces the distance between Europe and Asia by about 6,500 kilometers.
Countries bordering the Arctic are not the only ones with interests there.【B10】______; that’s very clear for natural resources, for fishing, for 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.【B11】______.
【B8】
Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos(36)released by America’s space agency, NASA, illustrate the fearful(37)threat to such bears. An image shows the amount of Arctic Sea ice in 1979. Another image shows the record(38)minimum set this year on September 16th. The shrinkage is(39)equivalent to an area greater than Texas, an impossible distance for even the(40)mightiest polar bear to swim.
Scientists say fossil fuels are increasing carbon(41)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(42)proportion, about 40 percent of that, goes back into the ocean, and so it’s increasing the acid(43)content of the ocean and that’s threatening fisheries.
Scientists at a recent conference at Columbia University’s Earth Institute said(44)less ice 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 bordering the Arctic are not the only ones with interests there.(45)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 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.(46)However, scientists caution that distance is no guarantee people will be spared the effects of warming in the planet’s northernmost regions.
选项
答案
content
解析
此处应填入一个名词。content意为“所含之物”。
转载请注明原文地址:https://kaotiyun.com/show/wrc7777K
0
大学英语四级
相关试题推荐
Thestarsareusuallyactorsandactresses.Mostpeopledonotevenlookatthenameofthedirectororproducer,exceptone-Ste
TheInteractionofBodyandMindTheconceptofpsychosomaticillnessPsycho,referstomind,andsoma,tobody.Psychosom
Artificialflowersaremadefromavarietyofmaterials,suchaswaxandglass,soskillfully____________(以致于很难和…分开)naturalfl
Afterretiringfrom30yearsofteaching,EthbellPeppercouldeasilyhavedecidedtositbackand【B1】______andenjoyapeaceful
TheFlyingPhoneBoxAsurpriseforairtravelersThestridesmadeinsatellite-communicationstechnologyinrecentyear
A、Sittingonhishands.B、Reachingouthishandstohelptheeatingprocess.C、Tyinghishandsbehindhisback.D、There’snorul
LearningalanguageWhenDoWeLearnaLanguage?Childrenbeginlearninglanguagesatbirth(infantspayattentiontothe
A、Gotowatchthebaseballmatch.B、Drivetowork.C、Trytofixthecar.D、Stopworkingandhavesomerest.C女士的建议提得很含蓄,她用“我还以为你
WatchoutforFallingSatellitesWhatIsHappening?Anout-of-controlUSspysatellitewillcrashtoEarthinthecoming
A、Toshowthatthemotorvehicleisaverydangerousinvention.B、Todiscusstrafficproblemsandproposepossiblesolutions.C、
随机试题
A.α波B.α波阻断C.β波D.δ波E.θ波正常成年人睡眠状态下一般出现()。
多级混洗交换网络又叫作()
简述苦味药的作用及主治病证。
在实施保护接零的系统中,工作零线即中线,通常用()表示;保护零线即保护导体,通常用()表示。若一根线既是工作零线又是保护零线,则用()表示。
编制控制性施工进度计划的主要目的是()。
下列关于民间非营利组织接受捐赠收入的核算,表述正确的有()。
2018年3月5日,英明公司资产管理部门建议管理层将一闲置办公楼用于对外出租。2018年3月10日,董事会批准关于出租办公楼的议案,并明确出租办公楼的意图在短期内不会发生变化。2018年3月20日,英明公司与承租方签订办公楼经营租赁合同,租赁期为自2018
畲族有本民族的语言,属汉藏语系,没有本民族的文字,通用汉字。()
中国政治协商会议是()。
Aspeoplecontinuetogrowandage,ourbodysystemcontinuestochange.Atacertainpointinyourlife—yourbodysystemswil
最新回复
(
0
)