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06年GRE模拟试题第5部分

2006-07-06 23:09

  18.Which of the following best describes the

  relationship of the second paragraph to the first?

  (A)The second paragraph relies on different

  evidence in drawing a conclusion similar to

  that expressed in the first paragraph.

  (B)The second paragraph provides further

  elaboration on why an assertion made at the

  end of the first paragraph proves to be true in

  most cases.

  (C)The second paragraph provides additional

  information in support of a hypothesis stated

  in the first paragraph.

  (D)The second paragraph provides an example of a

  case in which the assumption described in the

  first paragraph is unwarranted.

  (E) The second paragraph describes a phenomenon

  that has the same cause as the phenomenon

  described in the first paragraph.

  19.It can be inferred from the passage that the author

  of the passage would be most likely to agree with

  which of the following assertions about vigilant

  behavior?

  (A) The larger the group of animals, the higher the

  probability that individuals in the interior of

  the group will exhibit vigilant behavior.

  (B) Vigilant behavior exhibited by individuals in

  small groups is more effective at warding off

  predators than the same behavior exhibited by

  individuals in larger groups.

  (C) Vigilant behavior is easier to analyze in species

  that are preyed upon by many different

  predators than in species that are preyed upon

  by relatively few of them.

  (D) The term “vigilant,” when used in reference to

  the behavior of animals, does not refer

  exclusively to behavior aimed at avoiding

  predators.

  (E) The term “vigilant, ” when used in reference to

  the behavior of animals, usually refers to

  behavior exhibited by large groups of animals.

  20.The passage provides information in support of

  which of the following assertions?

  (A) The avoidance of predators is more important to

  an animal's survival than is the quest for food.

  (B) Vigilant behavior aimed at predators is seldom

  more beneficial to groups of animals than to

  individual animals.

  (C) Different species of animals often develop

  different strategies for dealing with predators.

  (D) The size of a group of animals does not

  necessarily reflect its success in finding food.

  (E) Similar behavior in different species of animals

  does not necessarily serve the same purpose.

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