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
2023-07-23
47
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] 【B10】
选项
答案
A pipe was also installed at Lake Monoun,where an outbreak of CO2killed 37 people in 1984。
解析
此题考查听单句的能力。关键要听明白由where引导的地点状语从句。另外,对于几个数字快速反应是这道题的难点。
转载请注明原文地址:https://tihaiku.com/zcyy/2860898.html
相关试题推荐
[originaltext][32]NewEnglandisanareaofmountains,valleys,andrivers
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
TheJapanesedesireformarriagehadbeenverystrong,inthefifth"worldy
Completethenotesbelow.ChooseNOMORETHANTWOWORDSfromthepassage
Passage1[originaltext]Manypeoplewhodoyogaarelookingnotinwardbuto
Whatdoesthestudyofanearlyretirementfind?A、Itmaybeeasieronthebody.
根据下面资料,回答44-47题 Somepeopledonotlike
预防十二指肠球部溃疡复发最重要的是A.抑制胃酸 B.应用粘膜保护剂 C.
水痘的主要表现,错误的描述是()A.发热1~2日出疹 B.愈后有色素沉着
卵磷脂小体减少常见于A.精囊炎 B.前列腺炎 C.附睾炎 D.尿道旁腺炎
氯霉素的抗菌作用机制A.影响胞浆膜通透性B.与核糖体30S亚基结合,抑制tRNA
向500kg浓度为10%的溶液中加入水稀释为浓度8%的溶液。需注入多少kg的水:
最新回复
(
0
)