考试辅导：2012年职称英语理工类A级模拟（三）及答案（6）

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第三篇
: a- D, e) ?# U4 k; n; v- ]: qPool Watch
9 Q( T+ o6 ]+ _( pSwimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. A report says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning.
When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguard's pager (呼机). In trials at a pool in Ancenis, near Nantes, it saved a life within just a few months, says Alistair McQuade, a spokesman for its maker, Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overhead video cameras. AI software analyses the images to work out swimmers' trajectories (轨迹). To do this reliably, it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool.
It does the same with an image from another camera viewing the shape from a different angle. If the two projections are in the same position, the shape is identified as a shadow and is ignored. But if they are different, the shape is a swimmer and so the system follows its trajectory.
+ Y& ~8 I, _4 Q+ `5 GTo pick out potential drowning victims, anyone in the water who starts to descend slowly is added to the software's "pre-alert" (预先警戒) list, says McQuade. Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a swimmer, not a shadow, by seeing whether it obscures (使模糊) the pool's floor texture when viewed from overhead. If so, it alerts the lifeguard, showing the swimmer's location on a poolside screen.
: b; Q. _4 y, J* d3 `! \$ B8 h9 DThe first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe, Buckinghamshire. One man who is impressed with the idea is Travor Baylis, inventor of the clockwork (时钟装置) radio. Baylis runs a company that installs swimming pools - and he was once an underwater escapologist (脱身杂技演员) with a circus (马戏团). "1 say full marks to them if this works and can save lives," he says.
11 AI means the same as
A　an image.
# }& e1 A, H3 K: u5 f2 E; d- dB　an idea.
* Y( E& ?/ F' O) ^, PC　anything immobile.
. F' e0 V0 g- ?, K; _$ |( cD　artificial intelligence
12 To save a life, AI software must be able to
# j% f: A5 V) L6 \6 sA　descend in the water.
B　videotape every movement.
C　distinguish between a swimmer and a shadow
3 b- t8 \0 D+ F$ k1 r! c/ J' WD　save a life within a few months.
- u0 ]6 ^, ^2 e+ G/ w13 How does Poseidon save a life?
A　It orders an underwater robot to rescue the drowning swimmer.
B　It alerts the lifeguard.
3 v' W4 \4 ^% \C　It displays the swimmer's shadow on the screen.
D　It watches the pool through dozens of overhead cameras.
14 Which of the following statements about Travor Baylis is NOT true?
( s+ L. i0 C, X9 u2 W% LA　He owns a swimming pool.
B　He invented the clockwork radio.www.Examw.com
C　He was once an entertainer.
D　He runs a company.
4 K1 s* g* J+ a1 e* r' \4 g6 r, K15 How does Baylis look at the Poseidon system?
A　He thinks it is too expensive.
6 ]* u) O3 v0 |: ~& ]* ?B　He thinks it is a good system.
8 m1 a8 L1 {5 W4 D( tC　He thinks it is not efficient enough.
D　He thinks it is as good as the British pool Watch system.
答案：41. D　 42. C　 43. B　 44. A　 45. B