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
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nyos is a scene of breathtaki
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nyos is a scene of breathtaki
admin
2010-09-10
22
问题
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nyos is a scene of breathtaking beauty. But the picture cannot be【B1】______.A detailed study reveals that the lake could release a【B2】______cloud of car bon dioxide, capable of wiping out entire communities around its shores.
The warning, from a team of scientists, comes nearly 20 years after the lake【B3】______an estimated 80m cubic metres of CO2 into the atmosphere. Heavier than air, the cloud of gas rolled down,【B4】______hillsides and villages. Silent and invisible, it【B5】______the air of oxygen, killing hundreds of cattle and claiming the lives of more than 1,700 people up to 26km away. "It was one of the most mysterious【B6】______scientists have ever investigated" said George Kling, an ecologist at the University of Michigan.
Researchers called in after the 1986【B7】______discovered that the lake, which sits atop a volcano, contained record levels of carbon dioxide. Gas bubbling up from the Earth’s magma was under such【B8】______at the bottom of the 200-metres deep lake that it dissolved until it reached max.【B9】______.
To prevent a recurrence, in 2001 engineers installed a pipe to suck CO2 from the bottom of the lake and release it harmlessly into the air.【B10】______. Dr Kling’s team recommends the urgent installation of a further four pipes in each lake at a rate of one a year.【B11】______.
【B1】
选项
答案
trusted
解析
此题考查听特定信息的能力。解题的关键在于对于单词的正确反应,抓住该词前的“cannot be”,用动词的被动语态。
转载请注明原文地址:https://kaotiyun.com/show/LP87777K
0
大学英语四级
相关试题推荐
A、Soldlotsofthings.B、Soldacomputer.C、Boughtacomputer.D、Boughtnewclothes.C事实题。此题应首先排除A)、B)选项。因为从对话一开始可听到“Iboughtso
A、Onceaweek.B、Twiceaweek.C、Onceamonth.D、Twiceamonth.A细节题。对话原文中提到“Itleavesonceaweek",听者可选出正确答案A。此题要求听者辨认频率副词。
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
A、Climbthemountains.B、Windsurf.C、Gofishing.D、Readsomebooks.D女士问男士准备去哪里度假,男士说去夏威夷爬山、钓鱼、游泳和冲浪。然后通过But转折,说他和妻子最喜欢的放松方式还是阅读
Everyeducationsystemisinevitablyamirrorthatreflectsthecultureofthesocietyitisapartof.InmanyWesternsoci
Everyeducationsystemisinevitablyamirrorthatreflectsthecultureofthesocietyitisapartof.InmanyWesternsoci
随机试题
组成计算机的五个基本部件是运算器、控制器、打印机、输入设备和输出设备。()
______agoodbeginningismade,theworkishalfdone.
气瘿的主要病因是:肉瘿的主要病因是:
牙龈病中最常见的是
桑白皮与葶苈子都既能泻肺平喘,又能()
财务会计报告就是会计报表()。
对于应收账款,下列说法正确的有()。
下列对不合格品纠正措施的表述正确的有()。
_________是20世纪最富有美国特色的一位作曲家,他将美国爵士乐的音乐素材与古典作曲技法融于一炉,为爵士乐走向世界舞台起了积极作用。
Whatdoesthepassagemainlydiscuss?
最新回复
(
0
)