According to Choe's hypothesis，___________.

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• 1Which of the following statements is NOT true of ants、

  A.Ants know very soon that another ant is dead．

  B.When an ant is dead，others move its body out of the nest．

  C.If an ant is unconscious，it is moved out of the nest．

  D.Living ants have the"I'm dead"chemical on their bodies．

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• 2What is meant by"death chemical"mentioned in paragraph 3、

  A.A chemical that contains poison．

  B.A chemical that causes death．

  C.A chemical that announces death．

  D.A chemical that prevents death．

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• 3It is suggested in the last paragraph that people should______．

  A.run around once a week

  B.not read and walk at the same time

  C.go for a walk every day

  D.not hurt their friends while exercising

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• 4It can be good for health when one takes a walk every 2 or 3 days for at least______．

  A.3 minutes

  B.45 minutes

  C.30 minutes

  D.10 minutes

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• 5The first study on 41 elderly people found______．

  A.the less-fit participants did arrow tasks faster

  B.the fitter participants did arrow tasks faster

  C.the less-fit participants gave more accurate answers

  D.the fitter participants gave more accurate answers

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• 6According to paragraph 7，what is the result of the test on Choe's hyothesis、

  A.It shows that his hypothesis is wrong．

  B.It proves that his hypothesis is convincing．

  C.It suggests that his hypothesis needs revising．

  D.Not enough evidence has been found to support his hypothesis．

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• 7The passage"Night of the Living Ants"tells us about________.

  A.how an ant is moved out of the nest at nigh

  B.what an ant does at night

  C.how an ant finds its way in darkness

  D.what happens when an ant dies

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

  A.two Germans were climbing mountains

  B.he was just on a mountain pass

  C.the melted ice made him visible

  D.he was lying on the ice

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• 9What can be inferred from paragraph 2、

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

  B.The iceman was struck dead from behind．

  C.The iceman was killed while working．

  D.The iceman lived a poor life．

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

  A.he was a soldier in Worid 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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