首页
登录
职称英语
What is special about this class? [br] [originaltext] Good morning everyone.
What is special about this class? [br] [originaltext] Good morning everyone.
游客
2023-11-13
39
管理
问题
What is special about this class? [br]
Good morning everyone. My name is Professor Michael Andrews. On behalf of myself and my colleagues, I would like to welcome you to Extrasolar Planetology, which is a new class being offered by the Astronomy Department this year.
About twenty-five years ago, there was no solid proof that other planets existed beyond our solar system. Most astronomers at that time felt that planets had to be out there, but they could not see them or prove they were there. Why? Simply put, planets are small and space is vast. Imagine trying to see a pea with a telescope from a hundred miles away, and you’ll understand how hard it is to find planets that are light years distant.
Clearly, something changed, for we now have a class called Extrasolar Planetology. What changed? Well, mainly, instruments got better and sophisticated telescopes were put into space. As a result, astronomers began to find the proof that they had lacked before.
The very first good evidence for the existence of other planets came from observations of ’wobbling’ stars. Using their high-tech instruments and space-based telescopes, astronomers found that some stars wobbled as they moved through space. What could be causing this the astronomers wondered? And then Eureka! The only likely explanation seemed to be that these stars were being affected by the gravity of unseen orbiting companions. In other words-planets!
And now, if you would please turn off the lights, I would like to show you some slides of a few of these wobbling stars.
选项
A、They change.
B、They explode.
C、They are small.
D、They are hard.
答案
C
解析
细节题。讲座人对行星的看法是:它们太渺小,而太空广袤。(Simply put,planets are small and space is vast.)此题的考点位于话语转换词“Simply put”后,有提示作用,考生在听的过程中应留意。
转载请注明原文地址:https://tihaiku.com/zcyy/3184373.html
相关试题推荐
"Tinalooksespeciallyprettytonight.""Yes,shealwayslooksherbestin______
WhatisthetotalnumberofstudentsatDeepSpringCollege?[br][originaltext
WhatisthetotalnumberofstudentsatDeepSpringCollege?[br][originaltext
Whatdoesthepassagemainlydiscuss?[br][originaltext]Canalsarewaterc
Whatdoesthepassagemainlydiscuss?[originaltext]Canalsarewatercourses
Whatisthenewsmainlyabout?[br][originaltext](29[B])Englishpremierl
WhichofthefollowingisTRUE?[originaltext]ThetradedisputebetweenAmeri
WhatdoesNewAmsterdamreferto?[br][originaltext]Formostofitslife
WhatdoesNewAmsterdamreferto?[br][originaltext]Formostofitslife
WhatdoesNewAmsterdamreferto?[originaltext]Formostofitslife,New
随机试题
NewYorkisoneofthe(11)largeAmericancitiestohave.someofitspolicemen
Whycouldn’tJanetcomeWtheclassofDr.Ellis?[originaltext]M:Hello.MattE
采用adopt;use
Text4MostforecastssuggestthatBritai
图示结构中,柱顶水平位移最小的是()。A. B. C. D.
女性,42岁,风湿性心脏病二尖瓣狭窄伴关闭不全,心电图示心房纤颤。患者休息时就有
我国银行间市场债券结算采用( ),统一通过中央国债登记结算有限责任公司的中央债
通过抑制H+/K+-ATP酶治疗消化性溃疡的药物是()。A.兰索拉唑 B.西
社区服务(活动)方案过程评估一般只能采取( )。A.整体评估法 B.个别评估
关于税收支出的说法不正确的是( )。A.税收支出的目的是取得收入 B.照顾性税
最新回复
(
0
)