We can see from the available statistics that ________.

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• 1The census distinguished itself from previous studies on population movement in that ________.

  A.it stresses the climatic influence on population distribution

  B.it highlights the contribution of continuous waves of immigrants

  C.it reveals the Americans’ new pursuit of spacious living

  D.it elaborates the delayed effects of yesterday’s “baby boom”

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• 2Discerned from the perplexing picture of population growth the 1980 census provided, America in 1970s ________.

  A.enjoyed the lowest net growth of population in history

  B.witnessed a southwestern shift of population

  C.underwent an unparalleled period of population growth

  D.brought to a standstill its pattern of migration since World War II

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• 3The author’s attitude toward the issue of “science vs. anti-science” is ________.

  A.impartial

  B.subjective

  C.biased

  D.puzzling

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• 4Which of the following is true according to the passage、

  A.Environmentalists were blamed for anti-science in an essay.

  B.Politicians are not subject to the labeling of anti-science.

  C.The “more enlightened” tend to tag others as anti-science.

  D.Tagging environmentalists as “anti-science” is justifiabl

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• 5Paragraphs 2 and 3 are written to ________.

  A.discuss the cause of the decline of science’s power

  B.show the author’s sympathy with scientists

  C.explain the way in which science develops

  D.exemplify the division of science and the humanities

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• 6The word “demographers” (Line 1, Paragraph 8) most probably means ________.

  A.people in favor of the trend of democracy

  B.advocates of migration between states

  C.scientists engaged in the study of population

  D.conservatives clinging to old patterns of life

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• 7The author believes that ________.

  A.the motion of the plates corresponds to that of the earth’s interior

  B.the geological theory about drifting plates has been proved to be true

  C.the hot spots and the plates move slowly in opposite directions

  D.the movement of hot spots proves the continents are moving apart

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• 8That Africa and South America were once joined can be deduced from the fact that ________.

  A.the two continents are still moving in opposite directions

  B.they have been found to share certain geological features

  C.the African plate has been stable for 30 million years

  D.over 100 hot spots are scattered all around the globe

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• 9The hot spot theory may prove useful in explaining ________.

  A.the structure of the African plates

  B.the revival of dead volcanoes

  C.the mobility of the continents

  D.the formation of new oceans

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• 10The passage is mainly about ________.

  A.the features of volcanic activities

  B.the importance of the theory about drifting plates

  C.the significance of hot spots in geophysical studies

  D.the process of the formation of volcanoes

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