首页
登录
职称英语
[originaltext] Among global warming’s most frightening threats is the predic
[originaltext] Among global warming’s most frightening threats is the predic
游客
2024-03-12
55
管理
问题
Among global warming’s most frightening threats is the prediction that the polar ice-caps will melt, raising sea level so much that coastal cities from New York to Los Angles to Shanghai will be flooded. Scientists agree that the key player in this scenario is the West Antarctic ice sheet, a Brazil-size mass of frozen water that is much as 7000 feet thick. Unlike floating ice shelves which have little impact on sea level when they break up, the ice sheet is anchored to bedrock, will blow the sea surface. Surrounded by open ocean, it is also vulnerable, but Antarctic experts disagree strongly on just how unstable it is. Now, new evidence reveals that all or most of the West Antarctic ice sheet collapsed at least once during the past 1. 3 million years, a period when global temperatures probably were not significantly higher than they are today. And the ice sheet was assumed to have been stable. In geological time, a million years is recent history. The proof, which was published last week in Science, comes from a team of scientists from Uppsala University in Sweden and California Institute of Technology who drilled deep holes near the edge of the ice sheet. Within samples collected from the solid substance lying beneath the ice, they found fossils of microscopic marine plants which suggest that the region was once an open ocean, not solid ice. As Herman Engleheart, a co-author from the California Institute of Technology says , ’’The West Antarctic ice sheet disappeared once and can disappear again. ’’
Questions 9 to 12 are based on the passage you have just heard.
9. What is one of the most frightening threats of global warming according to the passage?
10. What do scientists disagree on?
11. What is the latest information revealed about the West Antarctic ice sheet?
12. What do the scientists’ latest findings suggest?
选项
A、How humans are to cope with global warming.
B、How unstable the West Antarctic ice sheet is.
C、How vulnerable the coastal cities are.
D、How polar ice impacts global weather.
答案
B
解析
听力篇章中间提及科学家意见不一的地方:冰原到底有多不稳定。本题是个细节题,考生在听力过程中要集中注意力。
转载请注明原文地址:https://tihaiku.com/zcyy/3526357.html
相关试题推荐
[originaltext]Thetimeis9o’clockandthisisMarianSnowwiththenews.
[originaltext]It’salwaysfuntowriteaboutresearchthatyoucanactually
[originaltext]Amongglobalwarming’smostfrighteningthreatsisthepredic
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
[originaltext]Somehowtheoldmaleandfemalestereotypesnolongerfit.Me
[originaltext]Somehowtheoldmaleandfemalestereotypesnolongerfit.Me
[originaltext]Somehowtheoldmaleandfemalestereotypesnolongerfit.Me
[originaltext]ThereareroughlythreeNewYorks.Thereis,first,theNewY
随机试题
WhathappenedinAlgeriaTuesday?_____[br]Wheredidthatbombgooff?_____A、
Itwascurioushowoftensympathyfortheoldandinfirmtakesaformwhich
"Thereisasenselessnotionthatchildrengrowupandleavehomewhenthey’
Elizabethcouldnotrefuse,______sheforesawlittlepleasureinthevisit.A、sinc
[img]2012q2/ct_eyyjscz2008b_eyyjscreadb_0021_20121[/img]Whenwasthelastt
A.胎元饮 B.寿胎丸 C.圣愈汤加味 D.保阴煎 E.泰山磐石散治疗胎
闸门在承受设计水头的压力时,通过任意1m长度的水封范围内漏水量不应超过( )L
某开发商在一大型商场项目的开发建设中,违反国家规定,擅自降低工程质量标准,因而造
测定人工定额时间,定额时间的计算公式为()。A.定额时间=工序作业时间+规
移植器官超急排斥反应是由于A、供体内预存有抗受体的ABO血型抗体 B、供体内预
最新回复
(
0
)