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
2023-08-09
71
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、The West Antarctic region was once an open ocean.
B、The West Antarctic ice sheet was about 7,000 feet thick.
C、The West Antarctic ice sheet was once floating ice.
D、The West Antarctic region used to be warmer than today.
答案
A
解析
选项是关于the West Antarctica的情况的。听力篇章最后提及,这个地方曾是一片大洋,而并非冰川。因此A)为正确选项。
转载请注明原文地址:https://tihaiku.com/zcyy/2910099.html
相关试题推荐
全球气候变暖globalwarming
“走出去”(战略)goingglobal
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
随机试题
【S1】[br]【S8】of∧pages—the此处what引导主语从句,因此系动词用is;to…paper为不定式短语作表语;puttogether意
Differentpeopleholddifferentviewsastowhetherparentsshouldadoptan
ThegrammaticalwordswhichplaysolargeapartinEnglishgrammararefort
审稿题:审读短稿,按照审稿的基本要求指出其中存在的错误或缺漏。(本题20分)
应急调度的目的是()。A.发现进度计划执行发生偏差先兆或已发生偏差,采用对生产
选用墙体材料时,为使室内能够尽可能冬暖夏凉,材料应( )。A、导热系数小,比热
下列选项中不属于企业薪酬管理基本原则的是( )。A.对外具有竞争力原则
诊断早期肺源性心脏病的主要依据是( )。A.慢性肺部疾病史 B.肺气肿体征
财政履行经济稳定和发展职能的目标不包括()A.实现充分就业 B.实现经济增长
下列关于企业投资纳税管理的说法中,不正确的是()。A.与直接投资相比,间接投资
最新回复
(
0
)