The underlined word “mingled” in the last paragraph most probably means    .

试卷相关题目

• 1From the fourth paragraph ,we can infer that      .

  A.a great many nuclear weapons were actually used for war

  B.a large number of nuclear weapons should have been used for war

  C.the author is doubtful about the ruin of human beings by nuclear weapons

  D.the author is anxious about the huge number of nuclear weapons on the earth

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• 2What would be the best title for this passage、

  A.Plants and Animals

  B.How Plants Defend Themselves

  C.Attacks and Defenses

  D.How Animals Eat Plant Leaves

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• 3How does tobacco protect itself against an attack from a caterpillar、

  A.Its leaves fight against the attack by physical means.

  B.Its roots send a messenger to discourage the caterpillar.

  C.Its roots increase the production of nicotine when it is attacke

  D.D.Its leaves produce poisonous sand to drive the caterpillar away.

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• 4To defend themselves ,oak trees use        .

  A.chemical means

  B.physical means

  C.bitter chemicals

  D.sandy materials

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• 5The holly plant has more spines on the lower leaves because most animals      .

  A.are not tall enough

  B.like the lower leaves only

  C.are not clever enough

  D.can get the lower leaves easily

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• 6What do you think the author is most likely to suggest if he continues to write、

  A.Further application of science to war.

  B.More reading of William Shakespeare.

  C.Proper use of science in the new century.

  D.Effective ways to separate the good from the ill.

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