Which of the following statements is NOT true of ants、

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• 1What 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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• 2It 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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• 3It 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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• 4The 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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• 5After taking exercise for a few weeks，the mice were found to have_____．

  A.higher blood pressure

  B.faster heartbeat

  C.more blood flow to the brain

  D.better appearance

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• 6According to Choe's hypothesis，___________.

  A.an ant still smells like a living when it dies

  B.the"I am dead"chemical leaves the ant's body when it dies

  C.the"I am not dead yet"chemical is left when an ant dies

  D.the"I am not dead yet"chemical leaves the ant's body when it dies

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• 7According 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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• 8The 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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• 9The 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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• 10What 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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