The normal human daily cycle of activity is of some 78 hours' sleep alternating with some 16-17 hours' wakefulness.Broadly speaking,the sleep normally _____ with the hours of darkness.

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• 1Of all the senses that help a small baby to distinguish his mother the sound of her voice, his sense of smell,his sight,the distinctive way she handles him,sight is _____ .

  A.permanent

  B.predominant

  C.prevalent

  D.preliminary

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• 2Whether to go to college is optional _____ that no student is required to do so as he is required by law in most states of America to go to high school.

  A.in a sense

  B.in the way

  C.in the sense

  D.in the case

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• 3In Japan most people still feel that a woman's place is in the home;and most women willingly accept their traditional role as wife, leaving the business of making a living _____ their husbands.

  A.to

  B.with

  C.for

  D.on

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• 4During an earthquake,the great part of damage and loss of life has been _____ collapse of buildings and the effect of rockslides,floods,fire,diseases,and other phenomena resulting from earthquakes,rather than from the quakes themselves.

  A.due to

  B.owing to

  C.by reason of

  D.on account of

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• 5A scientist usually directs his attention towards problems which he notices have no satisfactory explanation,and his curiosity makes him look for _____ relationship even if the data available seem to be unconnected.

  A.underlining

  B.underneath

  C.undergoing

  D.underlying

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• 6Today the Americans' love of comfort is seen in the way they _____ their homes,the way they design their cars,and the way they like to travel.

  A.trim

  B.modify

  C.carpet

  D.furnish

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• 7Science is the systematic _____ of knowledge using nature itself or laboratory models and experiments.

  A.acquisition

  B.exploration

  C.survey

  D.pursuit

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• 8Computers can provide information which allows businessmen to _____ their list of goods,by showing which items are being sold and how fast they are moving.

  A.keep track of

  B.keep pace with

  C.keep in touch with

  D.keep company with

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• 9John Smith Community College is an opendoor educational institution _____ to providing higher education to all who can benefit.

  A.contributed

  B.committed

  C.subjected

  D.assigned

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• 10One Sunday morning the local post office _____ an important special delivery letter to my home,though it was addressed to me at my office.

  A.delivered

  B.presented

  C.submitted

  D.transferred

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