首页
登录
职称英语
[originaltext]M: Hello. This is Greg Rice reporting live in Barrow, Alaska.W:
[originaltext]M: Hello. This is Greg Rice reporting live in Barrow, Alaska.W:
游客
2023-09-03
56
管理
问题
M: Hello. This is Greg Rice reporting live in Barrow, Alaska.
W: Hello, Greg. Is everything going smoothly?
M: Yes. I’ve just arrived here in Barrow, Alaska, to bring you live coverage of what appears to be the results of a huge meteorite impact, perhaps the largest in recent history, that occurred just twelve hours ago. The exact location of the impact is unknown, but estimates put it about 20 kilometers south of Barrow based on shock waves felt throughout the region.
W: Are there any witnesses?
M: Yeah. Some witnesses say they saw a bright light streaking through the sky, accompanied by a roaring boom, moments before the impact. It’s unknown whether there are any casualties, but it is unlikely considering this sparsely populated area.
W: It’s said that such impacts were commonplace during the formation of our solar system, and many believe that a meteorite 10 kilometers in diameter which crashed into Earth 65 million years ago led to the mass extinction of many animal species including the dinosaurs.
M: You’re right. But it is often difficult to calculate the number of such large impacts on Earth because erosion and vegetation make it difficult to spot them. In recent years, astronomers have focused more of their attention on the paths of many uncharted space rocks or asteroids floating out there in the hope that we might be able to determine the threat they pose on mankind...This is Greg Rice reporting from Alaska.
W: Thanks, Greg...We’ll keep you up-to-date on any development there.
选项
A、Discovering new life in space.
B、Studying meteorites.
C、Plotting the courses of asteroids.
D、Developing radar telescopes.
答案
C
解析
What is the focus of the astronomers’ recent work?
信息明示题。男士最后说,近年来,天文学家更多地关注许多未知太空岩石或小行星的移动轨道,以希望可以判断出它们对人类造成的威胁,由此可知,天文学家近期工作的重点在于测定小行星的运行轨迹,故选C。
转载请注明原文地址:http://tihaiku.com/zcyy/2982269.html
相关试题推荐
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Today,ChineseAmericansmakeuplessthan1%oftheU.S.pop
[originaltext]W:Sinceit’stherushhour,let’stakethesubway.M:OK.It’sn
[originaltext]W:Haveyoumanagedtoassemblethemachineyet?M:I’vebeenstu
[originaltext]W:Haveyoumanagedtoassemblethemachineyet?M:I’vebeenstu
随机试题
[originaltext]M:Hello!Youseemworried.CanIhelpyou?W:Oh,Ifeelsostra
Whatsurprisedtheprofessorwhenhelookedthroughthekeyholeoftheroom?He
Forthispart,youareallowed30minutestowriteashortessayentitledDe
动态考核的特点()A.动设备受动力驱使而运转 B.管内有介质按要求而流动
图示为两次超静定结构,下列图中作为力法的基本结构求解过程最简便的是( )。
已知息税前利润,要计算资产净利率还需要知道()。 Ⅰ.利息费用 Ⅱ.公司
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
下列关于客户需求与动机的说法中,正确的有()。A.了解客户交易动机可以从了解
患者,男性,28岁,右大腿下端肿痛3月余,摄片见股骨下端有境界不清的骨质破坏区,
下列指标中,属于项目部施工成本考核的有()。A.施工成本降低额 B.施工成本
最新回复
(
0
)