学科网 - 让教与学更高效
北京
#：
全部地区 全国
A-G：
安徽 北京 重庆 福建 甘肃 广东 广西 贵州
H-J：
海南 黑龙江 河北 河南 湖北 湖南 吉林 江苏 江西
K-S：
辽宁 内蒙古 宁夏 青海 山东 山西 陕西 上海 四川
T-Z：
天津 西藏 新疆 云南 浙江
搜索
名师高考押题卷 BBC听力 历年高考真题
APP e卷通 会员
组卷网 > 高中英语综合库 > 主题 > 人与自然 > 自然 > 天体和宇宙
题型：完形填空 难度：0.4 引用次数：391 题号：15593617

It took humans thousands of years to understand our own planet, and centuries _______ our neighboring planets. Nowadays, new worlds are being _______ every week.

Up to the present time, astronomers have _______ more than 370 “exoplanets”—planets orbiting (绕……运动) outer space stars (恒星) other than our sun. There is a “hot Saturn (土星)” 260 light-years from Earth that orbits its parent star so _______ that a year there lasts less than three days. _______ another star 150 light-years out is a burning “hot Jupiter (木星),” where upper atmosphere (大气层) is being burning to form a huge comet-like tail. Astronomers have found another three _______ orbiting a pulsar (脉冲星)—the remains of a once huge star shrinking (收缩) into a small atomic nucleus the _______ of a city. Some planets have obviously fallen into their suns. Others have been thrown out of their _______ to become “floaters” that float in the darkness of the universe.

Among all these, scientists are eager to find a clue of the _______: planets like the Earth. That is, planets orbiting their stars at just the right distance—neither too hot nor too cold—to ________ life as we know it. We have not yet found planets that are quite like our own, ________ because they’re inconspicuous (不起眼的). To see a planet as ________ and slim as ours among the brightness of its star is like trying to see a firefly in a fireworks display.   ________ by pushing technology to the ________, astronomers are rapidly approaching the day when they can find another Earth. And when they do, they can examine it for ________ of life.

1.
A．exploreB．separateC．forgetD．defend
2.
A．revisedB．discoveredC．savedD．created
3.
A．travelledB．damagedC．recognizedD．ignored
4.
A．slowlyB．easilyC．wronglyD．rapidly
5.
A．RemovingB．CirclingC．LightingD．Showing
6.
A．starsB．moonsC．planetsD．satellites
7.
A．typeB．distanceC．powerD．size
8.
A．authoritiesB．speciesC．systemsD．facilities
9.
A．familiarB．previousC．unknownD．distant
10.
A．hideB．discoverC．injureD．support
11.
A．luckilyB．instantlyC．probablyD．officially
12.
A．smallB．brightC．blueD．clear
13.
A．AndB．YetC．SoD．Thus
14.
A．limitsB．endsC．oppositesD．beginnings
15.
A．examplesB．designsC．meansD．signs
21-22高一下·江苏常州·期中 查看更多[3]
更新时间：2022-04-21 17:09:58 |
纠错 收藏 下载 加入试卷
【知识点】 天体和宇宙 科普知识 说明文

相似题推荐

天体和宇宙科普知识 说明文
完形填空(约220词) | 较难 (0.4)

【推荐1】How big is space? That is a question man has been asking since the beginning of time. When your grandparents were in school, it was ________that the universe was very________perhaps only 5, 000 light years________. 500 years ago people considered that the universe was only a little bit________than the earth. In modern times with the________of technology we are finally starting to________the immense（无边的）size of the universe, and it is much bigger than anyone________have ever imagined.

Scientists cannot stretch（伸展）a measuring tape from the earth to a nearby star, so________do they know how far away they are? Scientists use something________parallax（视差）. Parallax means________that they look at how much the stars move in the sky________throughout the year as the earth circles the sun. This is not something________to you. In fact if you stretch out your hand in front of you and________your thumb, while________one eye, and then the other, your thumb will________to move back and forth. Stars do the________thing, but our eyes are too close to see the________. However, if we take a picture while on one side of the earth's orbit, and then take another when we get to the________side of the orbit, then we have a large enough________that we can see the stars' parallax, and________how far away they really are.

1.
A．measuredB．betC．thoughtD．proved
2.
A．oldB．bigC．mysteriousD．small
3.
A．overB．acrossC．throughD．outside
4.
A．biggerB．smallerC．heavierD．nearer
5.
A．popularityB．powerC．energyD．strength
6.
A．understandB．controlC．imagineD．feel
7.
A．wouldB．shouldC．couldD．might
8.
A．whatB．whyC．howD．when
9.
A．honouredB．called·C．consideredD．believed
10.
A．actuallyB．exactlyC．generallyD．simply
11.
A．in and outB．back and forthC．sooner or laterD．up and down
12.
A．unacceptableB．unfamiliarC．unbelievableD．unnatural
13.
A．look atB．shakeC．glare atD．notice
14.
A．coveringB．openingC．controllingD．hiding
15.
A．continueB．happenC．stopD．appear
16.
A．commonB．differentC．strangeD．same
17.
A．resultB．effectC．differenceD．similarity
18.
A．suitableB．sameC．oppositeD．correct
19.
A．distanceB．lengthC．heightD．width
20.
A．realizeB．determineC．recognizeD．design
2020-03-31更新 | 197次组卷
相似题 纠错 收藏 详情 加入试卷
完形填空(约400词) | 较难 (0.4)
名校
文章大意：本文是说明文。文章讨论了寻找星外智慧生物的话题。

【推荐2】With billions of stars in our galaxy (银河系), many circled by planets, the chances are there should be advanced life capable of reaching out to us. Yet after decades of looking and listening, we have found ___________.

This apparent conflict is known as Fermi’s paradox- Some have used it to argue that the search for extraterrestrial(外星球的)intelligence (SETI) is sure to ___________ .

But a mathematical analysis of SETI searches done so far claims that the usual explanation for the paradox— that there is nobody out there—is ___________. Instead, it suggests the best explanation is simply that we have barely scratched the surface in our ___________ for extraterrestrial intelligence.

Jason Wright at Pennsylvania State University and his colleagues analysed the many variables involved in SETI, which involves searching for radio signals from other ___________ . These include what to look for, where to look, how often and for how long. They then devised an equation that computes the ___________ of the galaxy checked so far. The team says that the volume of the galaxy that has been checked by SETI so far is roughly___________ to just a single bathtub of water in the world’s oceans.

“You don’t have to do a calculation to say we’ve only just ___________ ,” says Duncan Forgan at the University of St Andrews, UK, who is a member of the UK SETI research network. ”But they’ve done a nice job of showing the huge scale of the problem___________.“

As well as putting SETI in context, the equation can help researchers see which search techniques have been used less than others. ____________ , we only developed the technology to listen for higher radio frequencies quite recently. ”But we’re getting better at that, so that variable will now shrink,“ says Forgan.

However, advances in ____________ will only take us so far. Certain variables, such as how often a message from space might be repeated, cannot be____________. A signal sent once a year can only be listened out for once a year. ”There are things we can do better and things we can’t,” says Forgan. “We just have to ____________ and wait for the universe to do its thing.”

Forgan has a book coming out that discusses 66 potential ____________ for Fermi’s paradox. They include the possibility that Earth is somehow unusual in its ability to harbour intelligent life or that technological civilisations are rare. Or perhaps they are ____________ but short-lived. “Genetic or nuclear disasters might wipe you out,” says Forgan.

1.
A．nothingB．somethingC．anythingD．everything
2.
A．arriveB．joinC．failD．improve
3.
A．possibleB．simpleC．relativeD．false
4.
A．huntB．loveC．serviceD．region
5.
A．individualsB．civilisationsC．surroundingsD．organisations
6.
A．sourceB．centreC．edgeD．part
7.
A．subjectB．equivalentC．availableD．committed
8.
A．rememberedB．mentionedC．describedD．started
9.
A．progressivelyB．mathematicallyC．syntheticallyD．occasionally
10.
A．For exampleB．What’s moreC．In summaryD．By comparison
11.
A．technologyB．computationC．radioactivityD．astronomy
12.
A．measuredB．challengedC．changedD．interpreted
13.
A．set offB．sit backC．put upD．take down
14.
A．demandsB．benefitsC．explanationsD．applications
15.
A．weirdB．boringC．excitingD．common
2022-09-29更新 | 619次组卷
相似题 纠错 收藏 详情 加入试卷
完形填空(约420词) | 较难 (0.4)
名校

【推荐3】Space exploration has always been the province of ________：The human imagination readily soars where human ingenuity (创造力）struggles to follow. A Voyage to the Moon, often cited as the first science fiction story, was written by Cyrano de Bergerac in 1649. Cyrano was dead and buried for a good three centuries ________the first manned rockets started to fly.

In 1961, when President Kennedy declared that America would send a man to the moon by the ________'s end, those words, too, had a dreamlike quality. They resonated with optimism and ambition in much the same way as the most famous ________ speech of all, delivered by Martin Luther King Jr. two years later. By the end of the decade, both visions had yielded concrete results and________American society. And yet in many ways the two dreams ended up ________each other. The fight for racial and economic equality is intensely pragmatic (讲求实用的）and immediate in its impact. The urge to explore space is just the opposite. It is figuratively and literally otherworldly in its ________.

When the dust settled, the space dreamers lost out. There was no grand follow-up to the Apollo missions. The technologically compromised space shuttle program has just come to an end, with no ________. The perpetual argument is that ________ are tight, that we have more pressing problems here on Earth. Amid the current concerns about the federal deficit, reaching toward the stars seems a dispensable luxury—________ saving one-thousandth of a single year’s budget would solve our problems.

But human ingenuity struggles on. NASA is developing a series of robotic probes that will get the most bang from a buck. They will serve as modern Magellans,________out the solar system for whatever explorers follow, whether man or machine. On the flip side, companies like Virgin Galactic are plotting a bottom-up assault on the space dream by making it a reality to the public. Private spaceflight could lie within ________ of rich civilians in a few years. Another decade or two and it could go mainstream.

The space dreamers end up benefiting all of us—-not just because of the way they expand human knowledge, or because of the spin-off _______ they produce, but because the two types of dreams feed off each other. Both Martin Luther King and John Kennedy appealed to the idea that humans can ________what were once considered inherent limitations. Today we face seeming challenges in energy, the environment, health care. Tomorrow we will transcend these as well, and the dreamers will deserve a lot of the credit. The more evidence we collect that our species is ________greatness, the more we will actually achieve it.

1.
A．dreamersB．explorersC．astronomersD．novelists
2.
A．afterB．beforeC．untilD．while
3.
A．yearB．quarterC．centuryD．decade
4.
A．inspiringB．publicC．dreamD．freedom
5.
A．attackedB．industrializedC．transformedD．accessed
6.
A．in conflict withB．in line withC．in common withD．keeping pace with
7.
A．aimsB．influenceC．concernsD．terms
8.
A．ancestorB．successorC．forefatherD．advocate
9.
A．situationsB．securitiesC．fundsD．schedules
10.
A．just likeB．on condition thatC．as ifD．so that
11.
A．makingB．figuringC．sweepingD．mapping
12.
A．reachB．rangeC．controlD．knowledge
13.
A．productionsB．chipsC．technologiesD．substitutes
14.
A．go beyondB．go throughC．go afterD．go over
15.
A．In ignorance ofB．capable ofC．proud ofD．in favor of
2020-07-02更新 | 299次组卷
相似题 纠错 收藏 详情 加入试卷
试题篮 0
共计3题 平均难度：一般
清空全部 选题记录 进入组卷中心
最近收藏 最近下载 收起>>
收起 客服 反馈 公众号 官方微信 顶部
共计道 平均难度：一般
展开
清空试题
快速下载 进入组卷中心

©2007-2024学科网（北京）股份有限公司版权所有  题库自主建设   京ICP备12013499号-24

举报电话：400-102-2000      举报邮箱：     版权异议

组卷网拥有组卷网、组卷商标，若您发现其他网站违规使用，欢迎您向我们举报