首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
A Star Is Born 1 The VLT (Very Large Telescope) is the world’s largest teles...
A Star Is Born 1 The VLT (Very Large Telescope) is the world’s largest teles...
admin
2020-12-24
40
问题
A Star Is Born
1 The VLT (Very Large Telescope) is the world’s largest telescope (望远镜)and is taking astronomers (天文学家)further back to the Big Bang than they ever thought possible. Located 2, 600 metres up in the Chilean Andes, it has four huge mirrors, each about the size of a London bus. The VLT is so powerful that it can spot a burning match 10, 000 kilometres away.
2 This astonishing power will allow astronomers to see events in space from the birth of stars to the collision (碰撞)of galaxies (星系)on the edge of the cosmos (宇宙).The VLT is giving astronomers their best-ever view of the cosmos. The power of the VLT to see the smallest detail at the furthest distances makes its designers amazed.
3 Take the case of Eta Carinae, one of the most explosive stars in the universe. This star produces ultraviolet laser rays (紫外线)and it will destroy itself in a few million years’ time. It is five times brighter than the sun and when it explodes it is going to be a sight worth waiting for!
4 But it is at distances of millions, even billions, of light years that the VLT really shows its power. The VLT can detect light that set out on its journey before the earth even existed. This gives astronomers their first-ever detailed views of events that took place in the earliest days of the cosmos.
5 In other words, the VLT is a kind of a time machine. It takes astronomers back to a time when complete galaxies crashed into each other. The effects of these past collisions can now be seen by scientists, and astronomers believe the telescope will reveal more about these exciting events in the years to come. One day, we might be able to say we have traveled back to the beginning of time, and we will have a much clearer picture of how our planet was born.
Eta Carinae is taken________.
选项
A its detecting power
B millions of light years away in space
C the location of the VLT
D as an example
E the birth of the earth
F the rotation of the earth
答案
D
解析
文章第三段谈到Eta Carinae的时候是把它作为一个例子来讲的,故答案为D。
转载请注明原文地址:https://ti.zuoweng.com/ti/gE9QKKKQ
相关试题推荐
TheFrenchdomesticmarketisthelargestconsumerofchampagne.A:strain B:purc
共用题干 第三篇LiverDiseaseTheliveristhesecondlargestorganinyourbody.The...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
随机试题
近年来,在( )旧居内创办了河边民俗馆,反映出晋北地区的民俗文化特征。 A、
《矿山安全法》规定,对矿长安全资格的考核,应当包括的内容有()。
在城乡住户收支调查中,非抽样误差的可能来源是()。
某仓库失窃,四个保管员因涉嫌被传讯,四人的口供如下: 甲:我们四个人都没有
固位和稳定最好的卡环是A.圈形卡环B.双臂卡环C.三臂卡环D.单臂卡环E.隙卡
我国证券交易所是在权益登记日(T日)的()对该证券作除权、除息处理。A.T-1日B.T日C.T+1日D.T+2日
宋元时期是我国科技发展的第二个黄金时期,居于世界领先地位的科技有: ①沈括创制的“十二气历”②郭守敬的“授时历” ③张衡发明的“地动仪...
关于风湿性疾病的概念下列哪种说法是对的A风湿病就是胶原性疾病B风湿病就是结缔组织病C风湿病只包括风湿热和类风湿性关节炎D风湿病、结缔组织病、胶原病
原核RNA聚合酶由数个亚基组成,其核心酶的组成是( )
高桩码头构件存放场多层堆放预制构件时,各层垫木应位于()。 A.同一垂直面上,其位置偏差不应超过±100mm B.同一垂直面上,其位置偏差不应超过±2...