首页
登录
职称英语
Perched among the highlands of western Cameroon, bordered by green mountains
Perched among the highlands of western Cameroon, bordered by green mountains
游客
2024-02-23
7
管理
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】______. [br] 【B4】
选项
答案
surrounding
解析
此题考查听特定信息的能力。解题的关键在于从其后的“hillsides and villages”推测出此处要填一个动词,然后要把握住前句中的“roiled down”和句意来推出这里所填的动词要用动词的ing形式,表示一种伴随状态。
转载请注明原文地址:https://tihaiku.com/zcyy/3477156.html
相关试题推荐
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
PerchedamongthehighlandsofwesternCameroon,borderedbygreenmountains
[originaltext]CamerooninWestAfricaisanationof24separatelanguages
[originaltext]CamerooninWestAfricaisanationof24separatelanguages
[originaltext][32]NewEnglandisanareaofmountains,valleys,andrivers
随机试题
Intheseventeenthcentury,tipwasprobablyawordusedby______.[br]Tipping
He______unwisely,buthewasatleasttryingtodosomethinghelpful.A、mayhav
国内某出版社已取得《中国药茶》一书在海外出版发行的授权,现拟委托版权代理公司输出
开级配沥青混凝土混合料的空隙率往往大于()。A.10% B.15% C
患者男,43岁。3天前头部外伤,当时无意识障碍。伤后2小时出现头痛,抬高头位时加
根据《工程建设项目施工招标投标办法》规定,施工投标保证金数额一般不得超过投标总价
小儿血络郁闭的指纹表现是()A.指纹偏红 B.指纹紫红 C.指纹青色
下列关于靶向性评价指标的叙述中哪一项是错误的A.r大于1表示药物制剂在该器官或组
(2018年真题)根据房产税法律制度的规定,下列各项中,免征房产税的是()。A
采用控制图法控制生产过程质量时,说明点子在控制界限内排列有缺陷的情形有( )。A
最新回复
(
0
)