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.
Paragraph 4————
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
A
解析
文章第四段的主要意思体现在最后一句话里,选项A体现了这句话的意思,故为正确答案。
转载请注明原文地址:https://ti.zuoweng.com/ti/hE9QKKKQ
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...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
SmallButWise OnDecember14,NASAblastedasmallbutmightytelescopein...
共用题干 Google'sSolarEnergyGambit(策略)Googleismakingitslargestinvestmen...
随机试题
装运爆炸、剧毒、放射性、易燃液体、可燃气体等物品,必须使用符合安全要求的运输工具
委托加工应税消费品于受托方交货时由受托方代收代缴消费税,受托方没有同类消费品销售
平衡性协调性功能障碍评分描述错误的是 A.1分-不能活动 B.2分-大量身体
以下关于工作岗位设计的说法错误的是()。 A.岗位设计应充分考虑企业人力资源
制定和实施城乡规划,在()内进行建设活动,必须遵守《城乡规划法》。
2017年1月26日17时许,某县何坝镇村民林某为小孩过满月,邀请同村罗某、李某
与新行为主义关系不大的概念是()。单选
肝硬化腹水患者出现心悸,呼吸困难,巩膜黄染,神智迟钝,为减少腹水选用A.放腹水B.双氢克尿塞C.速尿D.安体舒通E.氨茶碱
下半口义齿起主要固位作用的部位是A.下颌隆突B.下颌舌骨嵴C.舌侧翼缘区后部D.舌系带E.舌下腺区
某女,50岁,缺失,前牙区Ⅲ°深覆,余留牙无异常。义齿的基托最好选用A.树脂基托B.铸造基托C.塑料基托D.金属网状基托E.锤造基托