An ultrasonic sound

试卷相关题目

• 1It is true that the sound

  A.of nature is the most beautiful

  B.over 80 decibels is harmful to people

  C.of high intensity benefits animals

  D.in movies is pleasing to the ear

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• 2What does the author say about music、

  A.It may be harmful to people's halth

  B.It always cheers people up

  C.It is very often difficult to understand

  D.It sounds better when it is lound enough

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• 3What could be the best title of the passage、

  A.The power of music

  B.The harms of noises

  C.The magic of sound

  D.The discovery of infrasonic waves

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• 4Gardner thinks that his theory has a ________ .

  A.musical foundation.

  B.biological foundation.

  C.intrapersonal foundation.

  D.linguistic foundation.

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• 5According to Gardner, schools should ________.

  A.test students’ IQs.

  B.train students who do poorly on tests.

  C.focus on finding the most intelligent students.

  D.promote development of all intelligences.

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• 6It can be found from the last paragraph that infrasonic waves

  A.are harmless to people's health

  B.exist in people's internal organs

  C.can be used as deadly weapons

  D.can improve eyesight

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• 7Music is recorded onto CDs as

  A.laser beams

  B.digital codes

  C.musical notes

  D.special sounds

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• 8E-mail is mentioned in the third paragraph to show

  A.the variety of digital communications

  B.the development of new technologies

  C.the usefulness of digital codes

  D.the relationship between communication and technology

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• 9One of the differences between CD-RWs and CD-ROMs is

  A.CD-ROMs can be used for longer time

  B.CD-ROMs cannot be rewritten on

  C.CD-RWs hold more information

  D.CD-RWs are merely used for music recording

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• 10CDs can last a long time if

  A.they are seldom used

  B.they play well and sound fine

  C.their users take good care of them

  D.they are developed with new technology

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