Who would agree that a scientist will become famous if he makes the wildest guess at longevity、

试卷相关题目

• 1According to Steve Austad at the University of Texas, ______.

  A.the average human life span could be 110

  B.scientists cannot find ways to slow aging

  C.few people can expect to live to over 150

  D.researchers are not sure how long people can live

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• 2What does the story of Jeanne Calment prove to us、

  A.People can live to 122.

  B.Old people are creative.

  C.Women are sporty at 85.

  D.Women live longer than men.

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• 3Which of the following statements is true、

  A.The babies didn’t have a sense of direction.

  B.The older babies preferred toy trains to balls.

  C.The younger babies liked looking for missing objects.

  D.The babies couldn’t tell a ball from its optical illusion.

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• 4What did Bower use in his experiments、

  A.A chair.

  B.A screen.

  C.A film.

  D.A box.

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• 5In Paragraph 3, “object permanence”means that when out of sight, an object ________.

  A.still exists

  B.keeps its shape

  C.still stays solid

  D.is beyond reach

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• 6What can we infer from the last three paragraphs、

  A.Most of us could be good at sports even at 120.

  B.The average human life span cannot be doubled

  C.Scientists believe mice are aging at a slower speed than before.

  D.New techniques could be used to change flies into a new species

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