摘要: What is the d from the earth to the moon? 69.

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    The exploration of space has been important in American’s history. American astronauts have walked on the moon, lived on the Mir space station, and orbited the earth many times in the space shuttle.

Date

Program

Crew

Details

5/5/61

Mercury Redstone

Shepard

1st American in space

12/21/68

Apollo Saturn 8

Borman, Lovell, Anders

1st lunar(月球的)orbit;views of lunar surface televised to Earth

7/26/71

Apollo Saturn 15

Scott, Irwin, Worden

4th moon landing, 1st lunar rover(飞行器) use

5/14-11/16/73

Skylab1, 2, 3, 4

Conrad, Kervin, Weitz, etc.

1st U. S. space station

4/12/81

Columbia

Young, Crippen

1st space shuttle flight

1/28/86

Challenger

. Scobee, Smith, Resnik, etc.

Exploded after takeoff

4/24/90

Discovery

McCandless, Sullivan, Shriver, etc

Launched Hubble Space Telescope which sends pictures of space to Earth

6/27/95

Atlantis

Gibson, Precourt, Baker, etc.

Exchanged crew members with Mir

7/23/99

Columbia

Collins, Ashby, Hawley, etc.

Collins was 1st woman to command a space shuttle; deployed(展开,部署) Chandra X-ray Observatory telescope

6/21/04

Space Ship One

Melvill

1st privately funded, manned spaceflight

 

68. What’s the form mainly about?

       A. The exploration of space shuttles.

       B. Life of American astronauts in space.

       C. The moon landing of American astronauts.

       D. Memorable moments in American spaceflight.

69. When was the first orbit of the moon?

       A. 1961          B. 1968          C. 1971                 D. 1973

70. Who made the first private spaceflight?

       A. Melvill      B. Gibson       C. McCandless       D. Scobbe

71. Which part is the form probably taken from?

       A. Tradition           B. Technology               C. Geography               D. History

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    A Chinese rocket carrying a probe(探测器)destined(预定) for the moon has been sent into space.

    A Long March 3C rocket with the Chang’e -2 probe took off from Xichang launch centre at about 11: 00 GMT.

    The rocket will shoot the craft into the trans-lunar orbit(绕月轨道), after which the satellite is expected to reach the moon in about five days. Chang’e -2 will be used to test key technologies and collect data for future landings. China says it will send a rover(漫游者) on its next mission, and it also has ambitions to put humans on the surface of the lunar body at some future date. The Xinhua News Agency said Chang’e -2 would circle just 15 km (nine miles) above the rocky terrain(地带)in order to take photographs of possible landing locations.

    It is China’s second lunar probe—the first was launched in 2007. The craft stayed in space for 16 months before being intentionally crashed onto the moon’s surface. China launched its first manned flight into low-earth orbit in 2003; and two more followed, with the most recent one in 2008. So far, only three countries have managed to independently send humans into space: China, Russia and the US.

    In 2008, a Chinese astronaut, fighter pilot Zhai Zhigang, performed a spacewalk—the first in China’s history. He stayed outside the Shenzhou-7 capsule for 15 minutes; the exercise was seen as the key to China’s ambition to build an orbiting station in the near future.

67. What’s Chang’e -2’s main task according to this passage?

A. Landing on the moon just as the first lunar probe.

B. Comparing with the first lunar probe.

C. Competing with Russia’s and the US’s space craft.

D. Testing technologies and collecting data for future landings.

68. Which of the following about Chang’e -2 is TRUE?

A. Its travel to the moon lasts about five days.

B. It will put humans on the surface of the moon.

C. It travels with Long March 3C rocket all the way.

D. It will take photographs of the moon on the trans-lunar orbit.

69. Which of the following is the best title for the passage?

A. China Launches Moon Mission

B. Chang’e -2 Is More Advanced than Shenzhou-7

C. China’s Space Program Makes Great Progress

D. China Equals Russia and the US in Space Technologies

70. The underlined word“craft” in the third paragraph refers to_____.

A. Chang’e -1 probe

B. Chang’e -2 probe

C. a rover

D. the Shenzhou-7 capsule

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How many things can you see in the night sky? A lot! On a clear night you might see the Moon, some planets, and thousands of sparkling stars.

You can see even more with a telescope. And with bigger and bigger telescopes you can see more and more objects in the sky. And you can see those objects in more and more detail.

But scientists believe there are some things in the sky that we will never see. We won't see them with the biggest telescope in the world, on the clearest night of the year.

That's because they're invisible. They're the mysterious dead stars called black holes.

You might find it hard to imagine that stars die. After all, our Sun is a star. Year after year we see it up in the sky, burning brightly, giving us heat and light. The Sun certainly doesn't seem to be getting old or weak. But stars do burn out and die after billions of years.

As a star's gases burn, they give off light and heat. But when the gas runs out, the star stops burning and begins to die.

As the star cools, the outer layers of the star pull in toward the center. The star squashes into a smaller and smaller ball. If the star was very small, the star ends up as a cold, dark ball called a black dwarf. If the star was very big, it keeps squashing inward until it's packed together tighter than anything in the universe.

Imagine if the Earth were crushed until it was the size of a tiny marble. That's how tightly this dead star, a black hole, is packed. What pulls the star in toward its center with such power? It's the same force that pulls you down when you jump--the force called gravity. A black hole is so tightly packed that its gravity sucks in everything--even light. The light from a black hole can never come back to your eyes. That's why you see nothing but blackness.

So next time you stare up at the night sky, remember: there's more in the Sky than we can see! Scattered in the silent darkness are black holes--the great mystery of space.

 

68. According to the article, what causes a star to die?

A. As its gases run out, it cools down.                B. It has a collision with other stars.

C. It can only live for about a million years.         D. As it gets hotter and hotter, it explodes.

69. Which of the following statements is NOT true?

A. Black holes are dead stars.         B. Black holes have gravity.

C. Black holes are invisible.           D. There is nothing as mysterious as a black hole.

70. What happens AFTER a star dies?

A. It becomes invisible.                              B. It fails to Earth.

C. It burns up all of its gases.                     D. It becomes brighter and easier to see.

71. Why can't you see light when you look at a black hole?

A. Because most black holes are so far away.

B. Because the gravity of a black hole is so strong that it sucks the light inward.

C. Because as the star's gases burn, it stops giving off heat and light.

D. Because as a star cools, its outer layers pull in toward its center.

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Agence Rrance-Presse--- French doctors this week carried out the world’s first operation on a human in zero gravity, using a specially adapted aircraft to create conditions in space.

During a three-hour flight from Bordeaux in southwest France, the team of surgeons and anesthetists (麻醉师) successfully removed a benign tumor (良性瘤) from the forearm of a 46-year-old volunteer. The experiment was part of a program backed by the European Space Agency to develop techniques for performing robotic surgery aboard the International Space Station or at a future Moon base.

“Now we know that a human being can be operated on in space without too many difficulties,” says the team leader Dr. Dominique Martin.

Under normal ground conditions, the operation would be performed under a local anesthetic. Without gravity, the surgeon’s work is harder and the patient’s body reacts differently. Blood doesn’t pump in the same way.

The custom-designed Airbus 300 aircraft performed a series of parabolic swoops (抛物线飞行), each creating between 20 seconds of weightlessness. The process was repeated 32 times.

Fixed inside a custom-made operating block, three surgeons and two anesthetists worked during these periods, with their instruments held in place with magnets around the patient’s bed. The next part of the program is to carry out a remote-controlled operation using a robot controlled from the ground by satellite. This experiment should take place within a year, Martin says.

Anesthetist Dr. Laurent de Coninek says that zero-gravity surgery offers huge promise for space exploration, although it would at first be limited to treating simple injuries. Today more than 400 people have already traveled into space. The chances of injuries occurring during missions will become even greater and to bring a wounded person back to the earth for treatment is both risky for them and expensive.

67. What would be the best title for the test?

A. A Special Operation for Doctors            B. First Operation on the Moon

C. World’s First Operation in Zero Gravity      D. An Important Experiment for Doctors

68. What’s the purpose of the operation?

A. To have an experiment on space operation.    B. To cure the patient.

C. To do it at the request of the patient.               D. To reduce the danger of operation on earth.

69. It is difficult for doctors to do operations in space because________________.

A. the patient’s illness will be more serious           B. the patient has no feeling about pain

C. the patient’s body reacts differently               D. the patient’s flood will stop flowing

70. The last paragraph mainly wants to tell readers________________.

A. there are many people injured in space           B. it is necessary to do the experiment

C. it is risky to travel in space                             D. there is no need to bring patients in space to the earth

 

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Agence Rrance-Presse--- French doctors this week carried out the world’s first operation on a human in zero gravity, using a specially adapted aircraft to create conditions in space.

During a three-hour flight from Bordeaux in southwest France, the team of surgeons and anesthetists (麻醉师) successfully removed a benign tumor (良性瘤) from the forearm of a 46-year-old volunteer. The experiment was part of a program backed by the European Space Agency to develop techniques for performing robotic surgery aboard the International Space Station or at a future Moon base.

“Now we know that a human being can be operated on in space without too many difficulties,” says the team leader Dr. Dominique Martin.

Under normal ground conditions, the operation would be performed under a local anesthetic. Without gravity, the surgeon’s work is harder and the patient’s body reacts differently. Blood doesn’t pump in the same way.

The custom-designed Airbus 300 aircraft performed a series of parabolic swoops (抛物线飞行), each creating between 20 seconds of weightlessness. The process was repeated 32 times.

Fixed inside a custom-made operating block, three surgeons and two anesthetists worked during these periods, with their instruments held in place with magnets around the patient’s bed. The next part of the program is to carry out a remote-controlled operation using a robot controlled from the ground by satellite. This experiment should take place within a year, Martin says.

Anesthetist Dr. Laurent de Coninek says that zero-gravity surgery offers huge promise for space exploration, although it would at first be limited to treating simple injuries. Today more than 400 people have already traveled into space. The chances of injuries occurring during missions will become even greater and to bring a wounded person back to the earth for treatment is both risky for them and expensive.

67. What would be the best title for the test?

   A. A Special Operation for Doctors            B. First Operation on the Moon

   C. World’s First Operation in Zero Gravity       D. An Important Experiment for Doctors

68. What’s the purpose of the operation?

   A. To have an experiment on space operation.     B. To cure the patient.

   C. To do it at the request of the patient.                D. To reduce the danger of operation on earth.

69. It is difficult for doctors to do operations in space because________________.

A. the patient’s illness will be more serious            B. the patient has no feeling about pain

C. the patient’s body reacts differently                D. the patient’s flood will stop flowing

70. The last paragraph mainly wants to tell readers________________.

A. there are many people injured in space           B. it is necessary to do the experiment

   C. it is risky to travel in space                             D. there is no need to bring patients in space to the earth

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