首页
登录
职称英语
[originaltext]M: Doctor Cole, thank you for agreeing to this interview for the
[originaltext]M: Doctor Cole, thank you for agreeing to this interview for the
游客
2024-03-03
75
管理
问题
M: Doctor Cole, thank you for agreeing to this interview for the Daily Campus News. Can you tell us about what you and your colleagues discuss at the annual astronomy society meeting last month?
W: Yes. For the first time ever the scientific community has established the existence of planets outside our own solar system. Of course we knew that certain distant stars existed, but only recently did we learn that several of them are orbited by their own planets.
M: Why did it take so long to locate these planets?
W: Well, you have to understand that they are a billion times dimmer than their parent stars. It would be like trying to see the light of a candle next to a huge explosion. We don’t currently have a telescope that can be used to see them.
M: But if the astronomers didn’t see the planets through a telescope, how did they find them?
W: By a very indirect method. The astronomers measured subtle distortions in the frequency of the light from the parent stars and observed that some of the stars seem to rock back and forth. They determined that this was caused by gravitational pull from orbiting planets.
M: There is a powerful new telescope being built in Arizona. Will that help them see these planets?
W: They should be able to see them at least in the form of small spots of light. And then the scientists will be able to break down and analyze this light. By doing this, they hope to learn about the chemical composition of these planets--oxygen and ozone molecules, for example, would be telltale signs of life on these planets.
M: I’m looking forward to hearing more when the telescope is in operation. And I’m sure our readers would be interested too.
选项
A、They studied variations in the appearance Of’ the parent stars.
B、They were able to see the planets with a telescope.
C、They compared the parent stars to the Sun.
D、They sent astronauts on a mission into space.
答案
A
解析
[听力原文]
How did the scientists establish the existence of the planets?
综合推断题。女士说天文学家是通过间接方法来发现那些行星的,他们测量出母星发出的光频的细微变化,还观察到母星似乎前后摆动,最终确定这都是由于沿轨道运行的行星的牵引而引起的,由此推断,科学家们是通过研究母星外观的变化来确定行星的存在的,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3502992.html
相关试题推荐
[originaltext]Hello,everyone.Wewilltalkaboutthetechnologytoday.You
[originaltext]Goodmorning,everyone.I’mgoingtotalkabouttheenvironme
[originaltext]Goodmorning,everyone.I’mgoingtotalkabouttheenvironme
[originaltext]Moderator:Goodevening,ladiesandgentlemen.It’smygr
[originaltext]Moderator:Goodevening,ladiesandgentlemen.It’smygr
[originaltext]Moderator:Goodevening,ladiesandgentlemen.It’smygr
[originaltext]Aswithsomanyotherthingsinlife,exercisemayworkbest
[originaltext]Anewsystemhasbeendevelopedtomeasurethehealthofthe
[originaltext]Anewsystemhasbeendevelopedtomeasurethehealthofthe
[originaltext]W:Hi,Jim.Whatareyoudoing?M:Oh,hi,Linda.I’mworkingon
随机试题
•Lookatthenotesaboutapublisher’splansforpromotionthisautumn.•Some
Guthrie’scontiguityprincipleofferspracticalsuggestionsforhowtobreak
[originaltext](13)Westerndoctorsarebeginningtounderstandwhattraditi
ClimateChangeMayMakeInsect-BorneDiseasesHardertoControl
关于沥青针入度试验,请回答以下问题。(1)通过针入度的测定不仅能够掌握不同沥青的
法律尽职调查重点关注的问题包括()。 Ⅰ.历史沿革问题 Ⅱ.主要股东情况
糖尿病的基本生化特点是A.高血糖 B.低血糖 C.血糖昼夜波动明显 D.高
为共同推进国内某市5G生态产业集群的发展,鹏霄电信公司与东序软件公司达成战略
某工程施工承包合同约定由建设单位采购钢材,某批钢材进场后施工单位检验发现其等级不
下列施工合同风险中,属于管理风险的是()。A.业主改变设计方案 B.对环境调
最新回复
(
0
)