But people who read hour after hour or work where the eyes are kept steadily at one focus soon may come to need glasses to correct their _____ .

试卷相关题目

• 1Job applicants often developed the suspicion that _____ are set aside for friends and relatives and that advertisements are only put out to avoid this accusation.

  A.positions

  B.vacancies

  C.occupations

  D.posts

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• 2However dull work may be, it becomes bearable if it is a means of building up _____ , whether in the world at large or only in one's own circle.

  A.admiration

  B.vanity

  C.honour

  D.reputation

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• 3To remain competitive in the international market place, U.S. industries have recognized that they must attract the brightest, most _____ young people available.

  A.committed

  B.dedicated

  C.determined

  D.contributed

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• 4It would be very difficult for a library to be without dictionaries and encyclopedea; such reference books are _____ .

  A.unavoidable

  B.inevitable

  C.indispensible

  D.fundamental

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• 5During the 1990s world oil production will approach geological estimates of maximum production _____ , even with rapidly increasing petroleum prices.

  A.capability

  B.quota

  C.potentiality

  D.capacity

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• 6Anyone who has ridden on a railroad train knows how rapidly another train flashes by when it is travelling in the opposite direction and _____ how it may look almost motionless when it is moving in the same direction.

  A.meanwhile

  B.accordingly

  C.likewise

  D.conversely

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• 7Manufacturing is Canada's most important economic activity. It _____ more than half the value of all Canadian production.

  A.accounts for

  B.amounts to

  C.takes up

  D.turns out

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• 8Tests reveal that mother's heartbeat can have a calming effect on the infant. Those who were _____ the heartbeat recording fell asleep in half the time it took for those who were not.

  A.left to

  B.exposed to

  C.faced with

  D.trusted with

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• 9Picture what happens when a father _____ his child into the air. The child will probably laugh, enjoying the game.

  A.casts

  B.pitches

  C.tosses

  D.elevates

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• 10Once a lighthouse is built, no ship of any nationality can be effectively _____ from the utilization of the lighthouse for navigational purposes.

  A.isolated

  B.dismissed

  C.distracted

  D.excluded

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