To defend themselves ,oak trees use        .

试卷相关题目

• 1The 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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• 2This passage mainly tells readers ___________.

  A.what happens on the opening day of the Sahara Festival

  B.how people celebrate during the three-day Sahara Festival

  C.what takes place at the closing ceremonies of the Sahara Festival

  D.how animals race on the first and the last days of the Sahara Festival

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• 3The underlined word “finale” in the fourth paragraph most probably means the      of the opening day.

  A.first part

  B.middle

  C.last part

  D.whole

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• 4Before the races begin,      take part in the activities during the opening ceremonies.

  A.musicians, dancers, horses and hares

  B.camel riders, musicians, dogs and hares

  C.horsemen, dancers, camels and dogs

  D.musicians, officials, camels and horses

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• 5The Sahara Festival is a festival which        .

  A.has a very long history in North Africa

  B.is held in the same place on the same day

  C.is attended mainly by the people in the Sahara

  D.is celebrated mostly by travelers from different countries

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• 6How 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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• 7What 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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• 8From 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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• 9The underlined word “mingled” in the last paragraph most probably means    .

  A.simple

  B.mixed

  C.sad

  D.happy

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• 10What 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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