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
2024-06-13
12
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:https://tihaiku.com/zcyy/3632305.html
相关试题推荐
【B1】[br]【B10】[originaltext]Thereissomethinghardtoresistaboutcherri
【B1】[br]【B8】[originaltext]Thereissomethinghardtoresistaboutcherrie
【B1】[br]【B7】[originaltext]Thereissomethinghardtoresistaboutcherrie
【B1】[br]【B6】[originaltext]Thereissomethinghardtoresistaboutcherrie
【B1】[br]【B4】[originaltext]Thereissomethinghardtoresistaboutcherrie
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepian
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepian
[originaltext]M:Didyounoticetheyjustbuiltanothercoffeehouseacrossthe
[originaltext]Botany,thestudyofplants,occupiesapeculiarpositionint
[originaltext]Botany,thestudyofplants,occupiesapeculiarpositionint
随机试题
他的成功比人们先前预料的要快很多。Hissuccesscamesoonerthanwaspredicted.汉语里“先前预料的”是约定俗成的习惯说法
ForAlan,whatisadisadvantageofthejob?A、Itsheavyresponsibility.B、Thepr
人民是历史的创造者、人民是真正的英雄,必须相信人民、依靠人民。()
建筑节约用水的方法除防止渗漏、限定水量和定时控制等方式外,还有()。A.定时
HIV对下列环境中的哪些物理因素和化学因素敏感?()A、低温 B、碱 C、0
存放时间较长的大白菜会因发热而腐烂,能使大白菜产生热量的主要生理作用是()。
下列哪个选项不属于突发性地质灾害?()A.地面沉降 B.滑坡 C.崩塌
下列不能申请成为记账式国债承销团成员的是()。A:中国人民银行B:证券公司C
( )是维持和发展市场经济的保障。A.劳动政策的制定 B.劳动力市场的建立与
关于施工安全技术措施要求和内容的说法,正确的是()。A.可随工程进展需要实时编
最新回复
(
0
)