首页
在线考试
章节闯关
谁正在考试
学习应用
听写训练
背单词
情景会话
口语模仿
擂台赛
每日英语
资料下载
作文批改
注册
您的位置：
在线考试首页
>
章节闯关
>
英语六级
>
阅读理解
>
科普知识类
>
第1关
00:00:00
已做
0
项(正确
0
项，错误做
0
项)/共10项，剩余
10
项未作答
结束作答
答案解析
上一题
下一题
返回
阅读理解
收藏
纠错
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 186,000miles 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.
1
From the passage, we learn that Hubble ____.
A.
comes from the name of a tourist guide
B.
was originated by Galileo
C.
is regarded as one of our satellites
D.
helped confirm the existence of black holes in 1990
本题答案：
A
B
C
D
参考答案：
C
系统解析：
第3段首句中的a satellite指的就是该句主句中的主语Hubble，结合第2段第2句说到的哈勃望远镜在370英里的上空绕轨道运行，可以推断选项C是正确的说法。虽然末段首句提到哈勃是“导游”，这是比喻的说法，表明哈勃把人类带进了宇宙新世界，因此A是没有依据的；首段提到了伽利略和望远镜，是为了引入本文的话题，并不表明哈勃望远镜是伽利略发明的，B不正确；原文虽提及“证实黑洞的存在”和“1990年”两个信息点，但它们并不存在如选项D所说的关系。
2
It can be inferred from "... not to the extreme but enough to pull some lace curtains” (Lines 3-4, Para. 3)that ____.
A.
there were some intricate flaws in Hubble so that it could not work
B.
the mistake in the primary mirror led to incorrect views of the universe
C.
Hubble's mirror was rendered vague due to designing error
D.
Hubble is designed to serve as a window on the universe
本题答案：
A
B
C
D
参考答案：
B
系统解析：
本题的解题关键在于理解pull some lace curtains across Hubble's “window on the universe.”的比喻 义。结合第4段末句哈勃望远镜经过修理后能拍出清晰的图片这个细节，可以推断第3段第2句利用比喻指出哈勃望远镜的主镜不能拍出清晰的图片，即选项B为本题答案。
3
The astronomers felt that the first images sent back by Hubble after the rescue were _____.
A.
extremely clear
B.
a bit bewildering
C.
infinitely valuable
D.
enormously diverse
本题答案：
A
B
C
D
参考答案：
A
系统解析：
第4段末句中的marveled at razor-sharp views表明天文学家对哈勃望远镜拍回来的图片的清晰度感到很惊讶，由此可见，他们应认同选项A。该句中虽有dizzy—词，但该词在文中表明哈勃望远镜拍回来的照片让科学家们眩目，它没有“使人迷惑”的意思，B不正确；该句末的eternity指的是哈勃望远镜能让科学家看到宇宙的深处，与图片的价值无关，C不正确；哈勃望远镜拍到了星球爆炸和星系撞击的图片，但这与enormously diverse (千变万化)相差还甚远,D错。
4
According to the fifth paragraph, through Hubble, we can see ____________.
A.
the moon at a shorter time than with our naked eye
B.
galaxies which began to form about 11 billion years ago
C.
the creation of the universe more than 13 billion years ago
D.
remote galaxies approaching us almost at the speed of light
本题答案：
A
B
C
D
参考答案：
B
系统解析：
第5段第4句中的主句表明我们现在所看到的星系在110亿年前就已开始形成了，B为本题答案。第5段开头描述了我们看到月球需要多长时间，但没有说明用望远镜需时多少。事实上，用肉眼和用望远镜看同 样距离的物体用时是一样的，A不符合常理；第5段第4句表明我们只能看到110亿年前，言下之意，130 亿年前宇宙的形成是看不见的，C不正确；D与第5段第5、6句相反，原文中的approach并不是表明星系 在靠近我们，而是表明它们远离我们的速度接近光速。
5
According to the author, for common people the greatest achievement of Hubble is to _____.
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
本题答案：
A
B
C
D
参考答案：
D
系统解析：
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在照文并未提及;C将天鹰座星云的信息张冠李戴到了哈勃望远镜上。
Wild Bill Donovan would have loved the Internet. The American spymaster who built the Office of Strategic Services in World War II and late laid the roots for the CIA was fascinated with information. Donovan believed in using whatever tools came to hand in the "great game” of espionage—spying as a “profession”. These days the Net, which has already remade such everyday pastimes as buying books and sending mails, is reshaping Donovan's vocation as well.
The latest revolution isn't simply a matter of gentlemen reading other gentlemen's e-mail. That kind of electronic spying has been going on for decades. In the past three or four years, the World Wide Web has given birth to a whole industry of point-and-click spying. The spooks call it “open-source intelligence”, and as the Net grows, it is becoming increasingly influential. In 1995 the CIA held a contest to see who could compile the most data about Burundi. The winner, by a large margin, was a tiny Virginia company called Open Source Solutions, whose clear advantage was its mastery of the electronic world.
Among the firms making the biggest splash in this new world is Stratford, Inc., a private intelligence-analysis firm based in Austin, Texas. Stratford makes money by selling the results of spying (covering nations from Chile to Russia)to corporations like energy-services firm McDermott International. Many of its predictions are available online at www. Stratford. com.
Stratford president George Friedman says he sees the online world as a kind of mutually reinforcing tool for both information collection and distribution, a spymaster's dream. Last week his firm was busy vacuuming up data bits from the far comers of the world and predicting a crisis in Ukraine. “As soon as that report runs, we'll suddenly get 500 new Internet sign-ups from Ukraine,” says Friedman, a former political science professor. “And we'll hear back from some of them.” Open-source spying does have its risks, of course, since it can be difficult to tell good information from bad. That's where Stratford earns its fame.
Friedman relies on a lean staff of 20 in Austin. Several of his staff members have military-intelligence backgrounds. He sees the firm's outsider status as the key to its success. Stratford's briefs don't sound like the usual Washington back-and-forthing, whereby agencies avoid dramatic declarations on the chance they might be wrong. Stratford, says Friedman, takes pride in its independent voice.
6
What can we learn about Bill Donovan?
A.
He was skilled in searching information in the Internet.
B.
He used to serve the CIA during the Second World War.
C.
He took the “great game" of espionage as a profession.
D.
He had a new job that was closely related with the Net.
本题答案：
A
B
C
D
参考答案：
C
系统解析：
首段第3句的破折号表示the "great game" of espionage等间于spying,根据破折号后的spying as a “profession” 也可确定C正确。首句是一个虚拟语气句，表明Donovan在世的时候还没有互联网，这 样看来，A无从说起：第2句表明二战期间CIA还不存在,B不正确；该段末句中vocation是指Donovan 以前所做的间谍工作，这句表明现在的互联网给间谍工作带来了新的形式，D是对Donovan's vocation 的错误理解。
7
What is becoming increasingly influential as it is pointed out in the second paragraph?
A.
The industry of spying.
B.
The World Wide Web.
C.
The data found in the Net.
D.
The latest Net revolution
本题答案：
A
B
C
D
参考答案：
A
系统解析：
本题的解题关键是找到第2 段第4句中it的所指。回看第3句,it可能指该句中的World Wide Web,或指句中的the industry of spying, World Wide Web以Net—词在第4句重复出现，由此可推断第4句中 的 it 指的是 the Industry of spying, A 为本题答案。
8
In the third paragraph, Chile and Russia are two countries ___________.
A.
in which Stratford finds its major clients
B.
which McDermott International cooperates with
C.
about which Stratford finds information for its clients
D.
whose development has been boosted by Stratford's predictions
本题答案：
A
B
C
D
参考答案：
C
系统解析：
第3段第2句中.Chile和Russia出现在括号里面，括号里的内容表明这两个国家是 Stratford侦查的对象，即Stratford找到有关这两个国家的信息。然后将信息出售给客户，由此可见，选项C为本题答案。该句中提到的corporations为Stratford公司的客户，括好的内容不是用来修饰corporations，A不正确；D前半部分的信息属于无中生有，
9
What makes Stratford the most successful spying firm is that ___.
A.
it can find relevant data from any comer of the world
B.
it uses the Net in collecting and distributing information
C.
it is able to distinguish the good information from the bad
D.
it gets much feedback from the clients from all over the world
本题答案：
A
B
C
D
参考答案：
C
系统解析：
第4段末句中that指的就是使Stratford公司成功的秘決。从该段倒数第2句的内容可以推断，that指的是Stratford公司具有分辨能力以提供可靠的信息，它不会像其他公司那样提供好坏参差的信息，由此可见,C为本题答案。
10
It can be inferred that people use back-and-forthing in order to _____.
A.
be independent of any influence
B.
make an official declaration
C.
apologize for any mistakes
D.
shift any possible blame
本题答案：
A
B
C
D
参考答案：
D
系统解析：
末段倒数第2句中，whereby引出的定语从句表明back-and-forthing的作用，从句中的avoid... the chance they might be wrong表明人们使用back and forthing是为了避免承担说错话的责任，本题应选D。A在文中没有提及;B和C则是利用原文中的个别词胡乱拼凑成的。
我的笔记
最大支持140字
收藏
0
好题
0
烂题
0
提交纠错
请输入您发现的错误详情
用户：
