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
One night in the early 1600s Galileo got tired of using the newfangled (新花样的) telescope to spot ships and pointed it to the heav
One night in the early 1600s Galileo got tired of using the newfangled (新花样的) telescope to spot ships and pointed it to the heav
admin
2018-05-11
66
问题
One night in the early 1600s Galileo got tired of using the newfangled (新花样的) telescope to spot ships and pointed it to the heavens instead. Suddenly the moon had mountains. A fleet of moons encircled Jupiter. And people would never again gaze at the night sky in the same way.
Now astronomers looked 8,000 light-years into the cosmos with the Hubble Space Telescope. Orbiting 370 miles up, above city lights and the rippling atmosphere, Hubble has confirmed the existence of black holes, revealed a gallery of bizarre galaxies, and chronicled the catastrophic (灾难的) explosions of dying stars.
Not bad for a satellite that in the beginning had something of a catastrophic reputation itself, Hubble was lifted into orbit with great expectation by the space shuttle Discovery in April 1990. Almost immediately it was clear that the primary mirror was misshapen (变形的)—not to the extreme but enough to pull some lace curtains across Hubble’s "window on the universe." The telescope’s true golden age began in December 1993, when the crew of the shuttle Endeavor rode to the rescue.
With hinged doors and modular (组合式的) parts, Hubble was designed to be serviced in space like roadside mechanics, the astronauts pulled up to Hubble, opened the hood, and installed replacement parts. They included corrective mirrors that canceled out the existing mirror flaw. In the following months astronomers marveled at razor-sharp views of a universe dizzy with exploding stars and colliding galaxies, stretching off from here to the edge of eternity.
When you look into space, you are looking back through time. Even at 186,000 miles a second, light requires a measurable amount of time to get from one place to another. Sunlight bounced off the moon requires a second to reach earth, so when you look at the moon, you are actually looking at the moon a second ago. With its unobstructed view, Hubble can look back some 11 billion years—just two billion years or so after the creation of the universe—to see galaxies already forming.
These galaxies are speeding away from us. The farther they are, the faster they’re going—the most distant approach the speed of light. In the 1920s astronomer Edwin Hubble came up with a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they are moving.
For the rest of us Hubble is simply the greatest tour guide ever. The Eagle Nebula’s towering pillars evoke the same awe as any ancient temple. The violence of Eta Carinae’s explosion is as heart-stopping as the eruption of a volcano. And thanks to Hubble we can begin to register the notion that while earth is our local address, we have an entire universe that we can call home.
According to the author, for common people the greatest achievement of Hubble is to ______.
选项
A、help them look farther in the universe
B、help them migrate to the universe
C、evoke the same awe as an ancient temple
D、give them a wider horizon of the universe
答案
D
解析
根据首段首句和末句可以推断,哈勃望远镜就像导游一样使我们对宇宙的视野更开阔了,D正确。本题最具干扰性的是选项A,从末段第2、3句的例子来看,作者关注的并不是可视距离的远近,而是宇宙景象的奇特,因此A不符合题意;B在原文并未提及;C将天鹰座星云的信息张冠李戴到了哈勃望远镜上。
转载请注明原文地址:https://kaotiyun.com/show/cqT7777K
0
大学英语六级
相关试题推荐
A、SheisagainstteachingEnglish.B、Englishshouldn’tbethegloballanguage.C、TranslationshouldreplaceteachingEnglish.D、
A、Anexperiencedteacher.B、AnEnglishtranslator.C、ATOEFLinterviewer.D、Alanguageresearcher.A选项均为关于职业的名词短语,推断本题与人物职业有关。根据
A、Asinglemediumpearcontainsnearly24calories.B、Pearconsumptionisassociatedwithlowerbodyweight.C、Peoplewhoconsum
A、Guessitsmeaning.B、Asksomebody.C、Refertoadictionary.D、Addittoyourwordlist.A短文提到,当你遇到生词或某个旧词的新含义时,先停下来,看你是否能通过上下文
A、Satisfied.B、Enthusiastic.C、Disappointed.D、Indifferent.C女士谈到,男士一定见证了公司很多的变化,男士回应说绝大部分的变化都是使事情变得更加糟糕。故选C。
A、UsingChinesesongswithEnglishlyrics.B、UsingEnglishsongswithEnglishlyrics.C、UsingChinesesongswithChineselyrics.
A、Theyarehappyaboutit.B、Theyarecuriousaboutit.C、Theyaredisappointedwithit.D、Theyarenotinterestedinit.A
随机试题
根据《唐六典》的规定,______品以上的高级官员由皇帝直接任命。()
属于癌前病变的是
A.自身免疫性溶血性贫血B.遗传性球形细胞增多症C.阵发性睡眠性血红蛋白尿D.G一6一PD缺乏症E.海洋性贫血女性,42岁,表现为贫血和脾大,伴有脱发、皮疹、关节红肿、面部红斑,最可能的诊断是
A.处方药品名称B.君、臣、佐、使C.前记、正文、后记D.中成药书写规则E.药品剂量与数量处方应以国家批准的名称书写的是
某企业5月10日,以银行存款支付前欠甲企业贷款20000元。根据该项经济业务的原始凭证,应当填制的记账凭证是()。
“江山易改,本性难移”和“人心不同,各如其面”说的分别是()。
下列关于世界经济发展不平衡的说法,错误的是()。
庄子认为物“方生方死,方死方生”,这是()
无论哪一种类型和层次的教育活动,都贯穿着三个基本要素:教育者、受教育者和()。
下列给定程序中,函数fun的功能是:求出s所指字符串中最后一次出现的t所指字符串的地址,并通过函数值返回,在主函数中输出从此地址开始的字符串;若未找到,则函数值为NULL。例如,当字符串中的内容为“abcdabfabcdx”,t中内容为“ab”时
最新回复
(
0
)