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
38
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.
Paragraph3 ————
选项
A Events that took place before the earthexisted
B Power of the telescope
C Details of Eta Carinae
D Invention of a time machine
E Biggest telescope
F Birth of the new worlds
答案
C
解析
文章第三段介绍了 EtaCarinae的情况,故答案为C。
转载请注明原文地址:https://ti.zuoweng.com/ti/VE9QKKKQ
相关试题推荐
共用题干 第三篇LiverDiseaseTheliveristhesecondlargestorganinyourbody.The...
共用题干 第三篇LiverDiseaseTheliveristhesecondlargestorganinyourbody.The...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
AStarIsBorn 1TheVLT(VeryLargeTelescope)istheworld’slargestteles...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
共用题干 Google'sSolarEnergyGambit(策略)Googleismakingitslargestinvestmen...
随机试题
关于合规文化建设的表述,错误的是( )。 A、基金管理人必须注重内涵式管理,建
某地上4层乙类厂房,其有爆炸危险的生产部位宜设置在第()层外墙泄压设施附近。
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是
净稳定资金比例应持续性地不低于(),从2018年1月1日开始实施。
房地产登记机构应当履行的职责包括()。
糖尿病最常见的神经病变是()A.植物神经病变B.颅神经病变C.周围神经病变D.神经根病变E.脊髓病变
某产品售价为67.1元,在采用新技术生产节约10%成本之后,售价不变,利润可比原来翻一番。问该产品最初的成本为多少元? A.51.2B.54.9C....
7岁患儿第一恒磨牙完全萌出后窝沟色黑,最应釆用的措施是()A.窝沟封闭B.氟化物防龋C.使用氯己定漱口液D.预防性树脂充填E.定期口腔检查
不合格单元工程必须经返工或补工合格并取得()认证后,方准予进入下道工序或后序单元工程开工。A.项目法人B.质监机构C.水行政主管部门D.监理工程师
老王将在5年后退休,为了在退休后的10年里,每年年初可以从银行提取3万元作为生活费,则在存款年利率为5%的情况下,老王当前应存入的金额是( )万元。[已...