Which of these words is nearest in meaning to the word "strains"、

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• 1We are told that there are now farms beyond the Arctic Circle. This has been made possible by _____.

  A.producing new strains of crops

  B.irrigation and dry-farming methods

  C.providing fertilizers

  D.destroying pests and disease

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• 2The author says that in densely populated areas the land might be more productively farmed if _____.

  A.the plots were subdivided

  B.a large part of the people moved to a different part of the country

  C.industrial methods were used in farming

  D.the units of land were made much larger

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• 3The author says that the world population is growing because _____.

  A.there are many rich valleys and fertile plains

  B.the pattern of distribution is being altered

  C.people are living longer

  D.new land is being brought under cultivation

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• 4Which of the following is the best title for the passage、

  A.The History of American Education.

  B.The Need for Specialized Education.

  C.The Future of the American Educational System.

  D.Attitudes toward American Education.

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• 5It can be inferred from the third paragraph that _____.

  A.information is our only product

  B.education in the future will be specialized

  C.we are entering an age of information

  D.we are living in an age of information

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• 6The author's main purpose is to _____.

  A.argue for a belief

  B.describe a phenomenon

  C.entertain

  D.propose a conclusion

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• 7According to the author, babies learn to do things which .

  A.are directly related to pleasure

  B.will meet their physical needs

  C.will bring them a feeling of success

  D.will satisfy their curiosity

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• 8Papousek noticed in his studies that a baby .

  A.would make learned responses when it saw the milk

  B.would carry out learned movements when it had enough to drink

  C.would continue the simple movements without being given milk

  D.would turn its head to right or left when it had enough to drink

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• 9In Papousek's experiment babies make learned movements of the head in order to .

  A.have the lights turned on

  B.be rewarded with milk

  C.please their parents

  D.be praised

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• 10The babies would "smile and bubble" at the lights because .

  A.the lights were directly related to some basic "drives"

  B.the sight of the lights was interesting

  C.they need not turn back to watch the lights

  D.they succeeded in "switching on" the lights

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