综合类模拟题及答案：完形填空Singing Alarms
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 ___________(1) all that with directional(定向的) sound alarms capable of guiding you to the exit.
Sound Alert， a company run _________(2) the University of Leeds， is installing the alarms in a residential home for _________(3) people in Sommerset and a resource centre for the blind in Cumbria. The alarms produce a _________ (4) range of frequencies that enable the brain to_________ (5) where the sound is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be_________(6) 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_________ (7)."
She conducted an experiment in which people were filmed by thermal-imaging (热效应成像) cameras trying to find their _________ (8) out of a large smoke-filled room. It_________ (9) them nearly four minutes to find the door without a sound alarm，_________ (10) only 15 seconds with one.
Withington studies how the brain _________(11) sounds at the university. She says that the _________ (12) of a wide band of frequencies can be pinpointed (精确地确定) more easily than the source of a narrow band. Alarms _________ (13) on the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to_________ (14) whether people should go up or down stairs. They were_________ (15) with the aid of a large grant from British Nuclear Fuels.
第 51 题 A.change B.cure C.demand D.set
【正确答案】： A
第 52 题 A.to B.along C.by D.with
【正确答案】： C
第 53 题 A.slow B.deaf C.blind D.lame
【正确答案】： C
第 54 题 A.close B.wide C.small D.high
【正确答案】： B
第 55 题 A.form B.affect C.create D.determine
【正确答案】： D
第 56 题 A.watched B.made C.learnt D.heard
【正确答案】： D
第 57 题 A.unlikely B.uncertain C.great D.little
【正确答案】： C
第 58 题 A.life B.way C.method D.skill
【正确答案】： B
第 59 题 A.took B.spent C.used D.had
【正确答案】： A
第 60 题 A.but B.even C.so D.if
【正确答案】： A
第 61 题 A.processes B.produces C.takes D.refuses
【正确答案】： A
第 62 题 A.feature B.quality C.diagram D.source
【正确答案】： D
第 63 题 A.accepted B.based C.kept D.focused
【正确答案】： B
第 64 题 A.describe B.demand C.consider D.indicate
【正确答案】： D
第 65 题 A.developed B.bought C.discovered D.sent
【正确答案】： A