大学英语大学英语大学英语四级(CET4)大学英语四级模拟题07

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• 21The number of _____ species increases every year as natural habitats disappear .

  A.dangerous

  B.serious

  C.endangered

  D.hazardous

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• 22Aluminum as well as most metals _____.

  A.is a good conductor

  B.is a good insulator

  C.are good conductors

  D.are good insulators

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• 23Outline are used most often to ______the contents of long complex papers before the actual writing begins .

  A.sketch

  B.illustrate

  C.draw

  D.describe

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• 24There are ten on the list , so you are _______.

  A.an eleventh

  B.the eleventh

  C.an eleven

  D.eleven

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• 25To get a high score ______.

  A.working hard is needed

  B.one must work hard .

  C.working hard is very important

  D.requirement is what needed

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• 26“ I’m tired , but let’s go”“ Why ____ rest a while 、”

  A.let’s

  B.not let’s

  C.not

  D.let’s not

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• 27I shall never allow you to marry the poor girl and you are not may son if you _____.

  A.have

  B.married

  C.do not

  D.do

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• 28He is _____ of a musician .

  A.anybody

  B.anyone

  C.somebody

  D.something

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• 29William the Conqueror built the Tower of London to protect himself from_____ he had conquered .

  A.those

  B.each other

  C.them

  D.it

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• 30I probably know him _____ but not _____ .

  A.by the sight …By name

  B.by a sight … by name

  C.by sight … by name

  D.by the sight … by the name

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