Satellites are used by people for the universe. A.study B.studies C.studying D.o——青夏教育精英家教网—

Satellites are used by people for the universe. A.study B.studies C.studying D.our study 【查看更多】

As we know, it is not easy to build a satellite(卫星). Building a traditional satellite usually takes years. The costs can be as high as $250 million or more. Most members of the design teams have worked in the field for a long time. They hold advanced degrees(学历) in math, science, or engineering.

But things are changing. High costs, unusual educational needs and long start-up times are no longer an obstacle(障碍) to space exploration. The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.
So far, college students have built and launched(发射) several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part in. When kids understand what satellites can do, the kinds of ideas they’ll come up with may be countless.
Education isn’t the only aim of CubeSats because these tiny, technology-filled boxes are inexpensive to build and can be put together quickly, they’re perfect for testing new technologies that might one day be used on major space tasks.
The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Or space junk could gradually increase because CubeSats become more popular.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday—perhaps a lot sooner that you imaging—you might get to design, build and launch your own satellite. If you do, you’re sure to have fun. And you might also get crazy about science for life.
小题1:Building a traditional satellite __________.
A. costs $250,000
B. needs college students
C. takes quite a long time
小题2:Compared with the traditional ones, the new satellites __________.
A. need long start-up times
B. are cheap and small-sized
C. collect more junk in orbit
小题3:The underlined word “countless” in Paragraph 4 probably means “__________”.
A. 无用的                   B. 无价值的             C. 无数的
小题4:According to the passage, which of the following is true?
A. CubeSats could possibly cause pollution in space.
B. Scientists designed CubeSats for kids to play with.
C. Students can’t design satellites without college education.
小题5:The purpose of the author writing the passage is __________.
A. to tell us that satellite technology can also be learned by kids
B. to show that high technology brings a big change in kids’ life
C. to tell us that kids must study hard to learn satellite technology

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阅读理解。

     If you watch the sky about an hour after the sun goes down, you may see some "moving stars". But they
aren't real stars. They're satellites, a machine that has been sent into space and goes around the Earth, moon,
etc. And the biggest of all is the International Space Station (ISS).
     The ISS is the biggest satellite because scientists want to live on it. They think that the best way to learn
more about space is to live there. The space shuttle Discovery has taken off from the Kennedy Space Center
in Cape Canaveral, Florida several times and carried a few groups of astronauts to the International Space
Station.
     When the space station is finished, it will be like a city in space. People will stay and study there with many
of the things they have at home. Laboratories, living rooms and power stations are being built. The ISS is the
most expensive space program ever. Millions and millions of dollars are being spent on it every year.
     Scientists hope that the ISS will be a stepping stone for future space exploration. "The ISS will help us
better understand the human body, explore (know more about) space and study the earth. It can help us make
life on the earth better," said Kathryn Clark, an ISS scientist.
     Sixteen countries are in the program: The US, Russia, Canada, Japan, Brazil and 11 European countries.
China is not an ISS country, but it has helped with some of the experiments. In 2003, China sent some rice
up to the ISS to find out what space would do to it.
     Twenty Chinese students talked directly to an astronaut (spaceman) in the International Space Station (ISS)
on radio in Nanjing, capital of east China's Jiangsu Province on Sunday, 2007. The 20 students, aged 10 to 19
from Shanghai, Guangzhou and Nanjing, began talking to Clayton C. Anderson, a 48-year-old American
astronaut at 18:50 p.m. at Nanjing No. 3 Middle School when the ISS was passing over Nanjing.
     After it's finished, more than 90 percnt of the world's population will be able to see the space station. So
keep looking up, and maybe you'll see it get bigger and brighter.

1. It seems that _______.

A. we can probably see the ISS when the sun goes down
B. some students from Nanjing have been to the ISS
C. China is one of the members in the ISS group
D. the ISS is still in the space but has stopped working

2. Power stations" in the third paragraph infers _______.

A. houses for people to live in, to study and do research work
B. machines that go around the earth, the moon and some stars
C. buildings where electricity is produced to supply a large area
D. some countries which help send the ISS up into space

3. —Why did the scientists send up the International Space Station (ISS)?
—Because they _______.

A. would send up most of the earth people to live there
B. could talk with some Chinese school students
C. hoped to travel to Mars and Venus some day
D. wanted to live in space and do better research

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Satellites are an important part of our ordinary lives. For example, the information for weather forecasts is sent by satellite. Some satellites have cameras which take photographs of the Earth to show how clouds are moving .Satellites are also used to connect our international phone calls.

Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programs come to US through satellites. Airplane pilots also sometimes use a satellite to help them find their exact location.

We use satellites to send television pictures from one part of the world to another. They are usually 35，880 kilometers above the equator. Sometimes we can see a satellite in the sky and it seems to stay in the same place. This is because it is moving around the world at 11，000 kilometers an hour—exactly the same speed that the earth rotates. A satellite must orbit the Earth with its antennae facing the earth. Sometimes, it moves away from its orbit，So there are little rockets on it which are used to put the satellite back in the right position .This usually happens about every five or six days.

Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth. A satellite usually works for about 10-12 years. Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired. Often，very old or broken satellites are left in space to orbit the Earth for a very long time. This is very serious because some satellites use nuclear power and they can crash into each other.

51.Which of the following is NOT done by satellites according to the passage?

A. Sending information for weather forecast.　　 B. Taking photographs of the Earth.

C. Sending TV pictures.　　　　　　　　　　 D. Providing food for airplane pilots.

52.What’s the speed the earth rotates at?

A.35,880 kilometers per hour.　　　　　　　 B.335,880 kilometers per hour.

C.11,000 kilometers per hour.　　　　　　　 D.110,000 kilometers per hour

53.Why does the satellite move around the world at the same speed as the Earth rotates?

A. In order to take photographs.　　 B. In order to stay in a certain position in the orbit.

C. In order to move away from its orbit. D. In order to send television pictures.

54.What does the underlined word “This” in the 3rd paragraph refer to?

A. A satellite.　　　　　　　　　 B.A little rocket.

C. A satellite seems to stay in the same place in the sky.

D. The satellite puts the rockets in the right position.

55.Which is true of satellites?

A. A satellite usually works for about 10-12 years.

B .Every time a satellite gets broken，it is brought back to the Earth to be repaired.

C. A broken satellite is never left in space.

D. They often crash into each other.

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阅读理解。

     As we know, it is not easy to build a satellite. Building a traditional satellite normally takes years. The
costs can be as high as $ 250 million or more. Most members of the design teams have worked in the field
for a long time. They hold advanced degrees in math, science, or engineering.
     But things are changing. High costs, unusual educational requirements and long start-up times are no
longer an obstacle to space exploration. The scientists at Stanford University have developed a new type of
tiny, inexpensive earth-orbiting satellites that go from ideas to launch (发射) in a year.
     So far, college students have built and launched several cube-shaped satellites, or Cube Sats. At least 15
more are ready to go. Those already in orbit (轨道) take pictures, collect information. and send it back to the
earth, just as regular satellites do.
     But you might not even have to wait until you get to college to start designing and building your own
satellite. A new program called Katy Sat aims to get teenagers to take part. Once kids understand and what
satellites can do, says Ben Yuan, an engineer at Lockheed Martin in Menlo Park, Calif, the kinds of applications
they'll come up with may be countless.
     "We'd like to put this technology (技术) in your hands," he tells kids." We're going to teach you how to
operate a satellite. Then we want to turn it over to you as a sandbox for you to play in. We want you to take
the technology into new directions that we haven't though of yet."
     Education isn't the only goal of Cube Sats. Because these tiny, technology-filled boxes are relatively
inexpensive to build and can be put together quickly, they're perfect for testing new technologies that might
one day be used on major space tasks.
    The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two.
Otherwise, major highways of space junk could gradually increase as CubeSats become more common.
     Nowadays, college and high school students are getting a chance to learn what it takes to explore in space.
Someday-perhaps a lot sooner than you imagine-you might get to design, build and launch your own satellite.
If you do, you're sure to have fun. And you might also get crazy a-bout science for life.

1. Compared with the traditional ones, the new satellites ______.

A. need long start-up times
B. are low-cost and small-sized
C. are very hard to operate
D. collect more information in orbit

2. What does the underlined word "obstacle" probably mean?

A. An aim to achieve in the near future.
B. An imagination that kids usually have.
C. Something dangerous to terrify people.
D. Something difficult that stands in the way.

3. According to the passage, which of the following is true?

A. CubeSats could possible cause pollution in space.
B. A few kids will send applications for the project.
C. Scientists designed CubeSats for kids to play with
D. Students can't design satellites without college education.

4. What's the purpose of the author writing the passage?

A. To show that high technology brings a big change in kids' life.
B. To show that kids lead the space research into a new direction.
C. To tell us that satellite technology can also be learned by kids.
D. To tell us that kids must study hard to learn satellite technology.

查看答案和解析>>

Satellites are an important part of our ordinary lives. For example, the information for weather forecasts is sent by satellite. Some satellites have cameras which take photographs of the Earth to show how clouds are moving. Satellites are also used to connect our international phone calls.

Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programs come to US through satellites. Airplane pilots also sometimes use a satellite to help them find their exact location.

We use satellites to send television pictures from one part of the world to another. They are usually 35，880 kilometers above the equator. Sometimes we can see a satellite in the sky and it seems to stay in the same place. This is because it is moving around the world at 11，000 kilometers an hour—exactly the same speed that the earth rotates. A satellite must orbit the Earth with its antennae facing the earth. Sometimes, it moves away from its orbit，So there are little rockets on it which are used to put the satellite back in the right position. This usually happens about every five or six days.

Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth. A satellite usually works for about 10-12 years. Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired. Often，very old or broken satellites are left in space to orbit the Earth for a very long time. This is very serious because some satellites use nuclear power and they can crash into each other.

51.Which of the following is NOT done by satellites according to the passage?

A. Sending information for weather forecast. B. Taking photographs of the Earth.

C. Sending TV pictures. D. Providing food for airplane pilots.

52.What’s the speed the earth rotates at?

A.35,880 kilometers per hour. B.335,880 kilometers per hour.

C.11,000 kilometers per hour. D.110,000 kilometers per hour

53.Why does the satellite move around the world at the same speed as the Earth rotates?

A. In order to take photographs. B. In order to stay in a certain position in the orbit.

C. In order to move away from its orbit. D. In order to send television pictures.

54.What does the underlined word “This” in the 3rd paragraph refer to?

A. A satellite. B.A little rocket.

C. A satellite seems to stay in the same place in the sky.

D. The satellite puts the rockets in the right position.

55.Which is true of satellites?

A.A satellite usually works for about 10-12 years.

B. Every time a satellite gets broken, it is brought back to the Earth to be repaired.

C.A broken satellite is never left in space.

D. They often crash into each other.

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