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
2023-09-10
76
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 mating 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 R is often difficult to calculate the number of such large impacts on Earth because erosion and vegetation make it difficult to spot them. In recant 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
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://www.tihaiku.com/zcyy/3002222.html
相关试题推荐
[originaltext]W:Whatabeautifulday!It’sashametostayinsideallday.M:
[originaltext]Atthetheater,shedisruptsthefirstactassheclimbsover
[originaltext]Atthetheater,shedisruptsthefirstactassheclimbsover
[originaltext]Atthetheater,shedisruptsthefirstactassheclimbsover
[originaltext]Morethan50percentofallhomesintheU.S.haveonething
[originaltext]Morethan50percentofallhomesintheU.S.haveonething
[originaltext]Areyouafraidtoraiseyourhandinclassevenwhenyouknow
[originaltext]Areyouafraidtoraiseyourhandinclassevenwhenyouknow
[originaltext]Thesoundofbirdscanbedividedinto3typesincludingsing
[originaltext]W:CanIhelpyou?M:Yes,I’dliketolookatsomearticlesthat
随机试题
Socialcustomsandwaysofbehavingchange.Thingswhichwereconsideredimpo
A. B. C. D.
油菜花,相当纯粹,没有桃花那么妖艳,没有牡丹那么富贵,从不________,只是
()isprimarilyconcernedwithdefining
为了保证检测的准确性,皮试时设阳性和阴性对照,阳性对照液常用A.变应原的稀释保存
( )是我国集体合同制度的重要组成部分。是调整劳动关系运行的重要机制。A.职工
绩效考评标准的设计要遵循以下()。A:突出不同岗位及不同岗位员工的特点的原则
小林卖空了2000股ABC股票,但她担心若是自己分析有误,这笔交易会给她造成巨大
权利和义务是一切法律规范、法律部门(部门法),甚至整个法律体系的核心内容。下列关
下列建设工程项目进度控制的措施中,属于技术措施的是()。A.确定各类进度计划的审
最新回复
(
0
)