首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
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
admin
2009-06-15
77
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 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.
选项
答案
E
解析
转载请注明原文地址:https://kaotiyun.com/show/tphd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
Thedentisthasdecidedtotakeoutthegirl’sbadtooth.
BeingSickPeoplearephysical,psychological(心理的),spiritual(精神的),andsocialhumanbeings.Theyhavecertainbasicnee
InfluenzaInfluenzahasbeenwithUSalongtime.AccordingtosomeGreekwriters______【51】medicalhistory,theoutbreakof
Hisjobwastolookaftertheanimals.
DomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimatepartnerduringtheirlifetime
DomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimatepartnerduringtheirlifetime
AMakingfriendswithnewacquaintancesBCloselinkbetweencompanionshipandbelongingnessCHowtosatisfyotherpeople’s
Hewasevidentlyholdinglightontohimselfaboutsomething.
PaperorPlastic?TakeawalkalongtheChesapeakeBay,andyouarelikelytoseeplasticbagsfloatinginthewater.Theyh
随机试题
简述上诉不加刑原则。(中南财大2005年研)
A.因技术不熟练,手术中误伤大血管,造成大出血死亡B.虽未造成死亡,残废,功能障碍,但造成一定损害,延长治疗时间C.贻误诊治和抢救时机造成危害后果D.发生难以预料的医疗后果E.发生无法避免的医疗后果属于技术事故的是
疗效发挥最快的剂型是
商业助学贷款的借款人发生违约事件时,贷款银行不能采取既在原贷款利息基础上加收利息又向保证人追偿的措施。()
企业可供出售金融资产公允价值变动形成的利得或损失应记入“公允价值变动损益”科目。()
(2006年考试真题)下列各项,在年末资产负债表和年度利润分配表中均有项目反映并且年末金额相等的是()。
设计绩效考评指标体系时,应遵循()
根据以下文字资料,回答问题。2006年与2002年末相比,全社会主要运输方式完成客运量由1608150万人增加到2024158万人,年均增长5.9%;旅客周转量由14126亿人公里增加到19197亿人公里,年均增长8.0%;货运量由1482737万吨增
已知intDBL(intn){returnn+n;}和longDBL(longn){returnn+n)是一个函数模板的两个实例,则该函数模板的定义是【】。
______,Tomwouldhavebeenawealthyman.
最新回复
(
0
)