|
当前位置：首页 > 公共英语(PETS) > 正文
|
|
|
2003年职称英语等级考试试题、答案及题解理工类C级8
|
|
文章来源：
文章作者：
发布时间：2006-05-23
字体：
[大
中
小]
|
|
|
第6部分：完形填空 （第51—65题，每题1分，共15分）
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。
Singing Alarms Could Save the Blind
If you cannot see, you may not be able to find your way out of a burning building – and that could be fatal. A company in Leeds could ____________ (51) all that with directional (定向的) sound alarms capable of guiding you to the exit.
Sound Alert, a company run __________ (52) the University of Leeds, is installing the alarms in a residential home for ______________ (53) people in Sommerset and a resource center for the blind in Cambria. The alarms produce a _____ (54) range of frequencies that enable the brain to ________ (55) where the sound is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be __________ (56) by humans. “It is a burst of white noise that people say sounds like static (静电噪音) on the radio,” she says. “Its life-saving potential is ______ (57).”
She conducted an experiment in which people were filmed by thermal-imaging (热效应成像)cameras trying to find their _________ (58) out of a large smoke-filled room. It ________ (59) them nearly four minutes to find the door without a sound alarm, ________ (60) only 15 seconds with one.
Withington studies how the brain ______ (61) sounds at the university. She says that the _________ (62) of a wide band of frequencies can be pinpointed (精确地确定) more easily than the source of a narrow band. Alarms ___________ (63) on the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to _________ (64) whether people should go up or down stairs. They were ______________ (65) with the aid of a large grant from British Nuclear Fuels.
51 A change B cure C demand D set
52 A to B along C by D with
53 A slow B deaf C blind D lame
54 A close B wide C small D high
55 A form B affect C create D determine
56 A watched B made C learnt D heard
57 A unlikely B uncertain C great D little
58 A life B way C method D skill
59 A took B spent C used D had
60 A but B even C so D if
61 A processes B produces C takes D refuses
62 A feature B quality C diagram D source
63 A accepted B based C kept D focused
64 A describe B demand C consider D indicate
65 A developed B bought C discovered D sent
|
|
|
↑返回顶部
打印本页
关闭窗口↓
|
|
|
|
|
|
 |
推荐文章 |
|
|
|
