A left-handed propellers, when the ship is going ahead, will cant ship’s stern to_______．

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• 1The force that causes the ship to move ahead through the water or to go astern is knownas_______．

  A.axial thrust

  B.transverse thrust

  C.the transverse effect of the propeller blades at the top near the surface of the water

  D.the transverse effect of the lower blades of the propeller near the bottom of the water

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• 2It is implied in the passage that _______．

  A.the number of passenger ships is small

  B.all passenger ships will carry some cargo in near future

  C.it is not necessary for liners to sail in regular time

  D.container carriers should carry some passengers

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• 3A list of the arrival and departure dates of liners _______．

  A.will be published weekly

  B.will be published when they sail, whether full or not, from Europe to North America and to the Far East

  C.will not be published even they sail fully loaded

  D.is published prior to their departure

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• 4The Liners _______．

  A.always sail full

  B.sail regularly even not full

  C.always sail in ballast

  D.will not sail if not full

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• 5The deep-sea liners _______．

  A.carry mainly containerized cargo

  B.carry mainly conventional cargo

  C.offer a daily or weekly service for passengers and vehicles

  D.sail across channels and narrow seas

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• 6The transverse thrust of the propeller is stronger when the ship is_______．

  A.going a stern

  B.going ahead

  C.stopped

  D.making no way through the water

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• 7The transverse thrust of the propeller can mainly be overcome by _______．

  A.the rudder

  B.the propeller itself

  C.the nautical instrument

  D.wind and tide

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