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
2024-06-01
47
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、The dinosaurs went extinct.
B、A number of meteorites crashed into Earth.
C、Some animal species evolved.
D、Some plants went extinct.
答案
A
解析
信息明示题。女士说许多人都认为,六千五百万年前一颗直径为10千米的陨星撞击了地球,这导致了包括恐龙在内大量动物的灭绝,由此可知,六千五百万年前恐龙灭绝了,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3615176.html
相关试题推荐
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]BenjaminFranklinwasawriter,printer,inventoranddiploma
[originaltext]BenjaminFranklinwasawriter,printer,inventoranddiploma
[originaltext]Formanyinternationalstudents,comingtotheUnitedStates
[originaltext]W:Goodeveningandwelcometotonight’sprogram.Ourguestisth
[originaltext]W:Goodeveningandwelcometotonight’sprogram.Ourguestisth
[originaltext]W:Goodeveningandwelcometotonight’sprogram.Ourguestisth
[originaltext]M:TherewasapartyonourschoolcampusSundayevening.Didyou
[originaltext]M:TherewasapartyonourschoolcampusSundayevening.Didyou
[originaltext]M:TherewasapartyonourschoolcampusSundayevening.Didyou
随机试题
IntheearlydaysoftheUnitedStates,postalchargeswerepaidbytherec
Readinginvolveslookingatgraphicsymbolsandformulatingmentallythesou
(2017年)甲公司系增值税一般纳税人,2017年5月购入丙材料100吨,增值税
A.局灶性运动性发作 B.局灶性感觉性发作 C.强直-阵挛发作 D.痉挛发
1905年,清政府宣布{}、兴学堂,班级授课制逐步在全国各地实施。
(2017年真题)奖励信息、处罚处分信息的效力期限一般为( )年。A.1 B
男性,28岁,腰痛、腰僵硬,逐渐出现驼背,X线片见慨髂关节模糊,间隙消失,可能诊
公路隧道按跨度进行分类,可分为()。A.小跨度隧道 B.中等跨度隧道
电视发射机图像通道的传输指标有()。A.频率响应 B.线性失真 C.非线性
术后3~6日发热的最常见的原因是( )。A.代谢异常 B.低血压 C.肺不
最新回复
(
0
)