首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
admin
2009-05-09
52
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.
【31】
选项
A、confided
B、promised
C、ensured
D、convinced
答案
D
解析
confide(向某人)吐露(隐私、秘密等);promise承诺;ensure确保;convince使确信。从语意上来看,可排除A;从句子结构上来看,这里是过去分词短语作原因状语,B项不符合;文中句子的意思是,航空公司诉诸可循环空气,因为他们确信(通过这种方式)可以降低部分成本,ensure常用于主动语态中,convince常用搭配为convince sb./yourself of sth.,如:I’d convince myself (that)I was right.故选D。
转载请注明原文地址:https://kaotiyun.com/show/AfPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Throughoutourcountry,moreandmoreprivateschoolsaresetup.Somepeopledoubtabouttheeffectivenessoftheseprivatesch
Besidesthefunctionsasavitalentertainmentmedium,whatelsecanpeopleuseaTVas?
Besidesthefunctionsasavitalentertainmentmedium,whatelsecanpeopleuseaTVas?
Besidesthefunctionsasavitalentertainmentmedium,whatelsecanpeopleuseaTVas?
随机试题
运用模糊数学的理论对评估对象进行数量化的描述,这种评估是()
Theworkersattheairportattachlabelstotheluggageofthepassengers.
属于直立性蛋白尿的情况是()
女患者,37岁,月经量少一年,现月经4月未行,五心烦热,两颧潮红,舌红,少苦,脉细数。治疗首选方剂是
关于公务员与所在国家机关之间争议的解决途径,下列选项中哪些做法不正确?
以下关于无差异曲线的特征,正确的有()。
甲公司为上市金融公司,2014年至2叭5年期间有关投资如下:(1)2014年1月1日,按面值购入100万份乙公司当日公开发行的分次付息、一次还本债券,款项已用银行存款支付,该债券每份面值100元,票面年利率5%,每年年末支付利息,期限5年,甲公司将该
甲企业计划进军东南亚国家市场,为保证成功,该企业领导要求市场部搜集当地的报纸和杂志,以获取更多关于该地区消费潮流的信息,这种市场调查方式属于()。
Almostallourmajorproblemsinvolvehumanbehavior,andtheycannotbesolvedbyphysicalandbiologicaltechnologyalone.Wha
ReadthearticlebelowaboutanItaliancarcompany.ChoosethebestwordtofilleachgapfromA,B,CorD.Foreachquestion
最新回复
(
0
)