How has the use of helicopters developed、

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• 1What is said about the development of the helicopter、

  A.Helicopters have only been worked on by man since 1940.

  B.Chinese children were the first to achieve flight in helicopters.

  C.Helicopters were considered more dangerous than the early airplanes.

  D.Some people thought they would become widely used by average individuals.

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• 2Helicopters work with the aid of ________.

  A.a combination of rotating devices in front and on top

  B.a rotating device topside

  C.one rotating fan in the center of the aircraft and others at each end

  D.a rotating fan underneath for lifting

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• 3People expect that ________.

  A.the airliners of today would eventually be replaced by helicopters

  B.helicopters would someday be able to transport large number of people from place to place as airliners are now doing

  C.the imaginations fired by the Russian engineer’s invention would become a reality in the future

  D.their fantastic expectations about helicopters could be fulfilled by airliners of today

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• 4Being in no great hurry, ________.

  A.we went the long route with scenery

  B.the long, scenic route was our preference

  C.we took the long scenic route

  D.our preference was taking the long, scenic route

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• 5Is it true that those old houses are being pulled down ________ new office blocks、

  A.to accommodate

  B.to provide for

  C.to increase

  D.to make room for

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• 6Under what conditions are helicopters found to be absolutely essential、

  A.For overseas passenger transportation.

  B.For extremely high altitude flights.

  C.For high-speed transportation.

  D.For urgent mission to places inaccessible to other kinds of craft.

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• 7In ancient Greece, the Olympic Games ________.

  A.were merely national athletic festivals

  B.were in the nature of a national event with a strong religious colour

  C.had rules which put foreign participants in a disadvantageous position

  D.were primarily national events with few foreign participants

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• 8In the early days of ancient Olympic Games ________.

  A.only male Greek athletes were allowed to participate in the games

  B.all Greeks, irrespective of sex, religion or social status, were allowed to take part

  C.all Greeks, with the exception of women, were allowed to compete in Games

  D.all male Greeks were qualified to compete in the Games

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• 9The order of athletic events at the ancient Olympics ________.

  A.has not definitely been established

  B.varied according to the number of foreign competitors

  C.was decided by Zeus, in whose honor the Games were held

  D.was considered unimportant

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• 10Modern athletes’ results cannot be compared with those of ancient runners because ________.

  A.the Greeks had no means of recording the results

  B.they are much better

  C.details such as the time were not recorded in the past

  D.they are much worse

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