天文学 TPO5-L2 Moon Landing

TPO5-L2

Moon Landing

Listen to part of a lecture in an Astronomy Class.


  1. What is the main purpose of the lecture?
  • A. To explain why scientists disagree about the age of the Moon.
  • B. To present arguments in favor of another Moon landing.
  • C. To explain how scientists discovered a crater on the far side of the Moon.
  • D. To review some finding of a recent mission to the Moon.

 

  1. What does the professor imply about the spacecraft Clementine?
  • A. It sent back the first color photographs of the Moon.
  • B. It was powered by solar energy.
  • C. It landed in the far side of the Moon.
  • D. It flew over the Moon’s polar regions.

 

  1. Why does the professor mention the Moon’s mantle?
  • A. To explain why scientists believe that meteor impacts cannot affect the Moon’s mantle.
  • B. To explain what kind of information scientists hope to obtain from the mantle.
  • C. To point out that the Moon’s crust and mantle are made of similar materials.
  • D. To point out that the Moon’s mantle and Earth’s mantle have different compositions.

 

  1. Why is the South Pole-Aitken Basin thought to be exceptionally old?
  • A. The walls of the Basin are more reflective than those of most other craters.
  • B. Testing of rocks from the Basin’s floor proves them to be as old as the Moon itself.
  • C. Many small craters have been detected at the bottom of the Basin.
  • D. A large amount of dust has been detected in and around the Basin.

 

  1. Why does the professor consider it important to find out if water ice exists on the Moon?
    [CHOOSE 2 ANSWERS]
  • A. Water ice could be processed to provide breathable air for astronauts.
  • B. One component of water ice could be used as a fuel for rockets.
  • C. Water ice could contain evidence of primitive life on the Moon.
  • D. Water ice could be tested to find out what type of meteors crashed into the Moon.

 

  1. What does the professor imply when he says this: 🎧

 

  • A. The current age estimates for the South Pole-Aitken Basin are based on incorrect assumptions.
  • B. The technology to analyze Moon rocks has not advanced much since the days of the Moon landings
  • C. Too few of the original Moon-rock samples were dated accurately
  • D. Only by testing samples from South Pole-Aitken Basin can its age be precisely determined


 


答案:
B D B C AB D

 

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