From the text we learn that _____.

试卷相关题目

• 1Which is the right order of hearing our echo in a very large, empty hall、 _____.

  A.We hear the reflected sound

  B.The sound returns to us

  C.The sound hits the walls

  D.We make a soundA.c, b, a, dB.c, a, b, dC.d, c, b, aD.d, b, c, a

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• 2We can hear our echoes if we _____.

  A.shout in a small room

  B.shout in a large house full of things

  C.shout in narrow valleys (山谷)

  D.shout in the open air

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• 3What is called "echo"、  _____

  A.Very loud voices

  B.Very loud voices that are made by man

  C.Very loud voices that are made by animals

  D.The sound that is made by man or animals comes back from some place

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• 4Which is the best tide for this passage、 _____  .

  A.Big Cities

  B.Interesting Things in Big Cities

  C.Good Schools in Big Cities

  D.New York, London and Paris

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• 5In this passage the writer thinks it is right for people _____.

  A.to move to big cities

  B.not to move to big cities

  C.to move to big cities without thinking of any problems

  D.to move to big cities after they think over the problems of living there

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• 6If you haven't got a megaphone, _____  will help you to make your voice travel farther.

  A.a long piece of wood

  B.a roll of cardboard

  C.a thin thread

  D.a long piece of silk

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