tpo30阅读及答案第二篇

　　tpo30阅读第二篇试题

　　A.countless.

　　B.occasional.

　　C.large.

　　D.repeated.

　　2.According to paragraph 1, all of the following are true EXCEPT

　　A.Darwin saw evolutionary change as happening slowly and gradually.

　　B.Gaps in the fossil record were used to explain why it is difficult to see continuous small changes in the evolution of species.

　　C.Darwin's evolutionary thesis was rejected because small changes could not be observed in the evolutionary record.

　　D.By the early twentieth century, most biologists believed that gradualism explained evolutionary change.

　　3.Which of the sentences below best expresses the essential information in the highlighted sentence in the passage paragraph 2 ? Incorrect choices change the meaning in important ways or leave out essential information.

　　A.The punctuated equilibrium hypothesis challenged gradualism, which holds that species evolve in relatively sudden bursts of brief duration.

　　B.The punctuated equilibrium hypothesis developed by Stephen Jay Gould and Niles Eldredge was challenged in 1972.C.In 1972 Stephen Jay Gould and Niles Eldredge challenged gradualism by positing that change from one species to another cannot occur without a lengthy transition period.

　　D.The punctuate equilibrium hypothesis, in opposition to gradualism, holds that transitions from one species to another occur in comparatively sudden burst.

　　4.According to paragraph 1 and paragraph 2, the punctuated equilibrium hypothesis and the gradualism hypothesis differed about

　　A.Whether the fossil record is complete.

　　B.Whether all species undergo change.

　　C.Whether evolution proceeds an a constant rate.

　　D.How many new species occur over long periods of time.

　　5.According to paragraph 3, the lack of intermediate fossils in the fossil record of some species

　　A.has been extensively studied by paleontologist for over a century.

　　B.contradicts the idea that most species have remained unchanged for millions of years.

　　C.challenges the view that evolutionary change is gradual.

　　D.is most common in the fossil records of clam and coral species.

　　6.The word "compelling" in the passage paragraph 4 is closest in the meaning to

　　A.surprising.

　　B.persuasive.

　　C.controversial.

　　D.detailed.

　　7.Paragraph 4 mentions that North American horses have changed in all the following ways EXCEPT in

　　A.the number of toes they have.

　　B.the length of their face.

　　C.their overall size.

　　D.the number of years they live.

　　8.The word "alteration" in the passage paragraph 5 is closest in meaning to

　　A.imperfection.

　　B.replacement.

　　C.change.

　　D.duplication.