2. 外语
  3. Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airbor

Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airbor

admin2009-05-09  31
问题     Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets【21】______? The Association of Flight Attendants (AFA), 【22】______which 42, 000 flight attendants with 27 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-related diseases has【23】______among its members and demands that prompt actions be【24】______to improve the conditions in the airplane cabin.
    A study the AFA【25】______in 1997 uncovered about 1, 000 self-reported incidents of headaches, dizziness and memory loss【26】______flight attendants and passengers. Some flight attendants were too ill to【27】______their safety duties, while others have been permanently disabled.
    Because of airlines’ efforts to【28】______their expenses, cabin-air filters are not cleaned【29】______. The complaints of flight attendants do not always give【30】______to correct maintenance. Airlines turned to recycled air, 【31】______that they would reduce some of their costs. They are not required to put filters in. Airlines are【32】______great pressure to get their flights out【33】______. So they do not pay as much attention to systems that are not as【34】______to flight schedule and safety.
    Recent research findings emphasize the concern that filters can【35】______engine chemicals into the cabin air. This may not happen【36】______every flight, but it is a persistent problem.
    In a study published in October 1998 an investigation was made【37】______complaints of crew members【38】______air quality and health. More than half of the 200 subjects reported health problems they【39】______to cabin air. It was concluded that these health problems were consistent with【40】______harmful gases and substances.
【28】
选项 A、decline
B、cut
C、shrink
D、save
答案B
解析 decline减少，下降，一般指数量、价值、质量等的减少，不与expense搭配，如：The number of tourists to the resort declined by 10％ last year．；cut削减，一般指价钱、产量等的削减，如：Buyers will bargain hard to cut the cost of the house they want．；shrink收缩，一般指缩水，或某物从大到小的收缩，如：The tumor had shrunk to the size of a pea．；save节省，把…存起来，一般说save money，save time，但是save不能直接与expense搭配，故选B。
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