What does the"astronomical object"in paragraph 2 refer to、

试卷相关题目

• 1What can the state-of-the．art computer simulation tell us about、

  A.How the Big Bang occurred about 13 billion years ago．

  B.How"cosmic dark ages"came into existence．

  C.How dust grains and gases were formed after the Big Bang．

  D.How the first stars canle into being after the Big Bang．

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• 2According to the first two paragraphs，the early universe_______．

  A.was governed by simpler physics

  B.got fewer stars shinning in it

  C.started over 13 billion years ago

  D.was composed in a way similar to that of today

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• 3Many countries will grant permission for the use of spaced-based solar power soon．

  A.Right

  B.Wrong

  C.Not mentioned

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• 4Space-based solar power will rule out other forms of renewable energy sources．

  A.Right

  B.Wrong

  C.Not mentioned

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• 5Inflatable minors are used to reduce the space-based solar power system．

  A.Right

  B.Wrong

  C.Not mentioned

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• 6According to paragraph 4，what is NOT true about a protostar、

  A.It developed into a massive star during the Big Bang．

  B.It evolved from pre-stellar gases．

  C.It was able to integrate heavy elements when evolving into a massive star．

  D.It had a mass of one percent of the sun．

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• 7According to the last paragraph，all of the following are goals of the simulation project EXCEPT

  A.to know more about the mass and properties of the first stars of the universe

  B.to simulate the process of how the early universe began

  C.to apply the simulation to the study of nuclear reaction initiation

  D.to discover the truth about the formation of a protostar

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• 8The body of the iceman was found in the mountains mainly because_________．

  A.he was lying on the ice

  B.two Germans were climbing mountains

  C.the melted ice made him visible

  D.he was just on a mountain pass

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• 9What can be inferred from paragraph 2、

  A.The iceman was killed while working．

  B.The iceman could have died from the wound in the head．

  C.The iceman lived a poor life．

  D.The iceman was struck dead from behind．

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• 10All the following are assumptions once made about iceman EXCEPT_____________．

  A.he was a soldier in World War I

  B.he came from Italy

  C.he was a Swiss woman's long-lost father

  D.He was born about a thousand years ago

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