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
57
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、Look for planets.
B、Turn the lights on.
C、Welcome students.
D、Show some pictures.
答案
D
解析
细节题。接下来的讲座内容是什么,根据最后一句话“And now, if you would please turnoff the lights,I would like to show you some slides of a few of these wobbling(闪烁的)stars.”可知。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3184375.html
相关试题推荐
Whatkindofaplanewasitthatcrashed?[br][originaltext]Washington—A
Whatkindofaplanewasitthatcrashed?[originaltext]Washington—Asights
Thenewsitemismainlyabout______[originaltext]Theassociationrepresent
Whatisthepassagemainlyabout?[originaltext]Emotionsmotivateandguide
Understandingtheculturalhabitsofanothernation,especially_____containinga
Onsuchasunnymorningwithspringintheair,shewasreally______aromanticw
Thefishwasgrilledandserved_____,whichmeansthechefdidn’taddspecialsa
Whatdothespeakersmainlydiscuss?[originaltext]M:Let’sgoswimmingoverat
Thesectarianclashesoccurredbetween______.[br][originaltext]MoreChri
Thesectarianclashesoccurredbetween______.[originaltext]MoreChristians
随机试题
TheOlympictorchstartsitsjourneyaroundtheworldfromtheopeningceremony
[originaltext]TheAfricanancestorsoftoday’sblackAmericanswerebrough
It’swidelyagreedthatgirlsgenerallystarttalkingearlierthanboys,an
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuy
房地产市场一般包括()。Ⅰ.土地使用权转让;Ⅱ,房地产开发;Ⅲ,房地产交易;
气象检测器的湿度检测器的测量误差应()。A.±5%R.H B.±3%R.H
以下有关借贷记账法的说法,正确的有()。A.以“借”、“贷”为记账符号 B
()是洋务派最早举办的军事学堂。A.福建船政学堂 B.天津水师学堂 C.湖
设计招标中,评标委员会推荐中标候选人的做法正确的是( )。A.推荐能够最低限度
《中华人民共和国合同法》规定,建设工程实行监理的,发包人应当与监理人采用( )
最新回复
(
0
)