A spacecraft can go back and forth between ________ space and ________ earth.
A.the, the
B./, the
C.the,/
D./,/
科目:高中英语 来源:2012届安徽省六安一中高三第七次月考英语试卷 题型:阅读理解
Scientists are worried that an asteroid(小行星) will possibly hit the earth in 2036. If scientists are right, planet earth is 24 years away from a major disaster.
Scientists have been monitoring the progress of a 390-metre-wide asteroid ever since it was discovered last June. They have announced that it could hit the earth, causing huge damage, in 2036.
NASA estimates that the impact from the asteroid named after Apophis and ancient Egyptian demon(魔鬼) would release more than 100,000 times the energy released in the nuclear explosion over Hiroshima. Thousands of square kilometers would be directly affected by the explosion. The whole planet would see the effects of the dust released into the atmosphere.
This is the worst possible scenario(情景) of any asteroid in recorded history.
Having more than 20 years’ warning of possible impact might seem plenty of time. But scientists insist that there is actually very little time left to decide.
Luckily, however, they aren’t short on ideas for deflecting the asteroid. The favored method is also probably the easiest—throwing a spacecraft at the asteroid to change its direction. The European Space Agency plans to test this in the next decade.
One idea that seems to have no support from astronomers is the use of explosive, although this sounds more likely to the public or Hollywood producer.
At present, scientists are trying to make a better estimate of how much time we have, through more observations.
In spring of next year, there will be another chance for radar observation of Apophis. This will help astronomers calculate the orbits of the asteroid more accurately.
If, at that stage, they can’t rule out an impact with the earth in 2036, the next chance to make better observations will not be until 2016, then 2029.
“If we wait until 2029 and the worst—case scenario turns out to be true, it would seem unlikely that we’d be able to do anything about 2036,” warns Prof Fitzsimmons.
【小题1】What does the underlined word “deflecting” most probably mean?
A.making it smaller. |
B.observing it clearly enough. |
C.dividing into pieces. |
D.changing its direction. |
A.the asteroid named Apophis will explode in 2036. |
B.the asteroid named Apophis might hit the earth in 2036. |
C.the asteroid named Apophis is 24 years old. |
D.there is plenty of time to decide the way we deal with the asteroid. |
A.It will damage Hiroshima. |
B.Thousands of square kilometers would see the effects of the dust released into the atmosphere. |
C.It might be the worst damage caused by asteroids in recorded history. |
D.The whole planet would be directly affected by the explosion. |
A.Hollywood producers will explode Apophis to avoid its hit. |
B.There are only two chances for scientists to make better observations if they can’t grasp the chance next year. |
C.NASA plans to throw a spacecraft at Apophis to change its direction. |
D.It is supportive from astronauts that we explode the Apophis. |
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科目:高中英语 来源:2013-2014学年陕西省西安市五校高三第一次模拟考试英语试卷(解析版) 题型:阅读理解
Everyone has done experiments in high school laboratories, but have you ever thought about designing a satellite to explore space?
On Nov. 19, a team of students from Thomas Jefferson High School for Science and Technology in the US awed peers and even scientists by successfully launching a satellite.
The first satellite designed and built by high school students was sent up into space along with a record-setting. 28 other small ones on a rocket were sent from a NASA center in Virginia, CNN reported. It took the students seven years to build.
The students call their tiny satellite TJ3Sat, which is named after their school. It is just 10x10x12 centimeters and weighs only 0.89 kilograms, according to Orbital Sciences, a company which developed the rocket and supported the students’ project. It can be controlled with a smartphone.
Like most satellites, TJ3Sat can send and receive data. The small spacecraft is equipped with a voice synthesizer (合成器), which can switch text to voice and transmit those sounds back to Earth over radio waves, said Orbital officials. In this case, anyone can give it a try via the project’s website (school website) by submitting (提交) a text. The texts that get approved will be sent to the satellite, changed to voice and then broadcast back to Earth via radio waves.
“I can say ‘Go Colonials’ on our ground station and when it is on the other side of the world, in India, someone can hear ‘Go Colonials’over the radio,” the team explains on the website.
The satellite will stay in space for at least three months.
School principal Evan Glazer told The Washington Post that the project started in 2006 as an activity in the spare time. Later it became a research project for a select group of seniors.
At a time when American students are busy with SATs, the launch of the satellite shows what diligent teenagers can achieve when allowed to pursue their own curiosities, Glazer said.
“It used to be that kids growing up wanted to be an astronaut,” Andrew Petro, program executive (主管) for small spacecraft technology at NASA, said in a statement. “I think we might be seeing kids saying what they want to do is build a spacecraft. The idea here is that they really can do that.”
1. The underlined word “awed” in the second paragraph is closest in meaning to ___.
A.influenced? B.amazed? C.delighted? D.inspired
2. Which of the following statements about TJ3Sat is TRUE according to the article?
A.It took a group of students about a decade to build the satellite.
B.Besides TJ3Sat, 28 other small satellites were built by the students.
C.TJ3Sat can receive text messages that the students send into space, which it can change to voice messages and broadcast back to Earth.
D.TJ3Sat is expected to stay in orbit for the next year, sending out messages together with information about its position in space.
3. According to the article, the launch of the satellite _______.
A.is evidence of the advance of spacecraft technology
B.proves that hard-working teenagers can achieve a lot
C.shows the importance of extracurricular activities at school
D.has inspired many people to take an interest in space travel
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科目:高中英语 来源:2015届吉林省长春外国语学校高二上学期期中考试英语试卷(解析版) 题型:阅读理解
Scientists know of more than 1,000 volcanoes on the surface of Venus, Earth’s “sister” planet. A big question has been: Are they still active? The scientists say yes.
Their evidence for recent volcanic activity on Venus comes from a lava (熔岩) flow in the planet’s northern hemisphere. The flow is hotter than the rocks around, which means the lava might still be cooling off. “The flow we studied seems to be very young---it is still warm inside,” Nataliya Bondarenko said.
Venus is a difficult planet to study from Earth because it is surrounded by thick clouds. Telescopes on Earth can’t see through these clouds, so the best information about Venus comes from spacecraft orbiting it.
Bondarenko and her colleagues studied the lava flow using data from NASA’s Magellan mission. That spacecraft spent four years in orbit around Venus and used radar to make a map of 98 percent of the planet’s surface. On October 11th, 1994, the mission ended, and the spacecraft plunged (跌落) through Venus’ heavy cloud cover and crashed onto the planet below.
While in orbit, the Magellan craft sent microwaves, which can go through Venus’ clouds, to the surface. Microwaves are invisible and can be as long as three feet. These waves are a kind of energy, like light. And like light, they bounce off surfaces. The way the waves bounced off the Venus’ surface and back to the craft supplied information that the scientists used to estimate the temperature of various parts of the planet’s surface. Bondarenko’s team found that the lava flow was hotter than its surroundings---which may mean the lava flow is in the process of cooling.
The scientists say the lava flow can’t be very old because if it were, it would have cooled off enough that Magellan wouldn’t have noticed the difference in microwaves. She adds that the flow appears in a 1978 view of the surface that a craft called the Pioneer Venus Orbiter captured.
1.What happened to Magellan in the end?
A. It was floating in space forever.
B. It flew into heavy clouds.
C. It returned to the Earth.
D. It fell onto Venus.
2.How could Bondarenko judge the temperature of the Venus?
A. By looking at it with a powerful telescope.
B. By measuring the thickness of clouds over Venus.
C. By calculating the microwave bouncing off Venus’s surface.
D. By orbiting Venus for 4 years in a spacecraft.
3.The best title for the passage may be “______ ”.
A. Warm lava on Venus
B. More volcanic eruptions on Venus
C. Venus is just like a big active volcano
D. Lava flows are first found on Venus
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科目:高中英语 来源:2012-2013学年河南六市高三第二次联考英语试卷(解析版) 题型:阅读理解
Sixty-five million years ago, an asteroid (小行星) that crashed on Earth led to the disappearance of the largest animals that have ever walked our planet – the dinosaurs. At least, this is what some scientists believe. But that accident happened so long ago. People have come to believe that we are free of threats from asteroids and everything else from space.
However, what happened on Feb 15 , 2013 was a reminder that we’re just as vulnerable as the dinosaurs once were. Two objects from space – a meteor (陨石) and an asteroid called 2012 DA14 – visited Earth’s atmosphere on the same day. The former fell in Russia, injuring 1,200 people, while the latter passed by Earth at a record-setting close distance.
Scientists had been expecting the asteroid since last year, but the meteor was a surprise. NASA’s telescope system only detects asteroids at least 50 meters in diameter (直径), which is just about the size of 2012 DA14. But the meteor was much smaller, which made it harder to spot.
But what if we do spot an asteroid that is headed right for Earth? There are several possible ways in which dangerous asteroids could be made to change its orbit. Which method is best depends on several factors and most importantly – how much time we have to stop it.
If there is enough time before the hit, we can send off a heavy spacecraft to travel alongside the asteroid. The gravity from the spacecraft would gradually change the rock’s orbit. Besides that, scientists could one day use sun-powered lasers to either make asteroids disappear or change their course. If there’s not enough time, we’ll have to go after the asteroid with a spacecraft and change its orbit with a crash. Finally, if things are truly desperate, there will be only one choice left – to use a nuclear bomb. That could turn the asteroid into a meteor shower, which would be even more dangerous.
1.The author mentioned the asteroid that led to the dinosaurs’ dying out to ______.
A. show that asteroids fall from space frequently
B. alert people about the possible danger of objects falling from space
C. inform readers about the constant threats the Earth faces
D. suggest that there are still many mysteries about the universe
2.The underlined word “vulnerable” in the second paragraph probably means ______.
A. unprotected B. lonely C. stupid D. self-important
3.Which of the following statements is TRUE about the meteor that fell to the Earth in Russia?
A. It passed by the Earth at a close distance.
B. It was spotted by NASA’s telescope system a year ago.
C. It is about the same size as the asteroid that passed by the Earth.
D. It fell to the Earth and caused great damage to the local community.
4.What is the main idea of the article?
A. Learning about asteroids and meteors.
B. The threats of objects from space and possible solutions.
C. NASA’s latest technology to discover visitors to the Earth from space.
D. How to measure the damage of collisions from asteroids and meteors.
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科目:高中英语 来源:2010-2011学年江苏省高三三模前英语热身题 题型:阅读理解
Boeing said Wednesday that it was entering the space tourism business, an announcement that could bolster(增强)the Obama administration’s efforts to transform the National Aeronautics and Space Administration into an agency that focuses less on building rockets and more on nurturing a commercial space industry.
The flights, which could begin as early as 2015, would most likely launch from Cape Canaveral in Florida to the International Space Station. The Obama administration has proposed turning over to private companies the business of taking NASA astronauts to orbit, and Boeing and Bigelow Aerospace of Las Vegas won an $18 million contract this year for preliminary (初步的)development and testing of a capsule that could carry seven passengers.
Current NASA plans call for four space station crew members to go up at a time, which would leave up to three seats available for space tourists. The flights would be the first to give nonprofessional astronauts the chance to go into orbit aboard a spacecraft launched from the United States. Seven earlier space tourists have made visits to the space station, riding in Russian Soyuz capsules.
“We’re ready now to start talking to possible customers,” said Eric C. Anderson, co-founder and chairman of Space Adventures, the space tourism company based in Virginia that would market the seats for Boeing.
Boeing and Space Adventures have not set a price, although Mr. Anderson said it would be competitive with the Soyuz flights, which Space Adventures arranged with the Russian Space Agency. Guy Laliberté, founder of Cirque du Soleil, paid about $40 million for a Soyuz ride and an eight-day stay at the space station last year. But the possibilities that anyone buying a ticket will get to space on an American vehicle depend on discussions in Congress about the future of NASA.
1. Which of the following is most probably a private travel company?
A. Boeing. B. Space Adventure.
C. NASA. D. Russian Space Agency.
2. How many people can be carried along on a capsule to the space station?
A. 3. B. 4. C. 7. D. 11.
3. What can be inferred from the passage?
A. The American space tourism company is located in Virginia.
B. Russia has already taken lead in working on the space tourism business.
C. NASA has decided to focus less on building rockets because of the financial crisis.
D. In 2015, America would be the first country in the world to run the space tourism business.
4.What’s the best title of the passage?
A. Taking NASA Astronauts to Orbit. B. Living in the Space Station Space.
C. Ticket Price under Discussion. D. Boeing Could Fly You to Orbit by 2015.
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