In many movies and books set in the future, robots can fly spaceships, work as maids or butlers, and even act as police officers.

The “K5” robots are part of a trial program to test a machine’s ability to ______ the duties of a safety officer. The robots are ______ with HD security cameras, alarms, etc. In addition, they have an ______ intelligence system that will act as a human security guard if they notice anything unusual.

The robots’ software can also analyze faces and ______ license plates(號碼牌). The robots can check whether a plate number______ a stolen vehicle. Plus the robots’ on-board cameras are able to ______ good-quality videos in low-light conditions.

The K5 is able to move through its environment ______ using GPS as well as an internal navigation system. Each time the K5 is ______ to a new place, a human uses a wireless controller to ______ the robot around the area. This helps the K5 “l(fā)earn” about its ______.

“You give it a base map ______ then it starts building from that,” says Stacy Stephens, the co-founder of Knight scope.

Unlike humans, the K5 security guards don’t need ______ — they can work almost 24 hours a day. The robots run on rechargeable batteries, and a single charge______ 24 hours. If a robot notices that its battery is getting ______, it will return to a charging port and plug itself in. It _______ only 15-20 minutes to fully recharge, so the K5s are not out of _____ for long.

____ the K5 may look friendly and does not carry any weapons, it’s not meant to be messed with. An ear-piercing alarm will sound ______ the K5 is trapped for more than a few minutes.

The robots are designed to do the kind of work a human security guard would ______ do, but they also take on the repetitive(重復乏味的) and sometimes _______ guard work, Stephens explains.

1.A. perform B. conduct C. declare D. witness

2.A. donated B. surrounded C. equipped D. decorated

3.A. adequate B. artificial C. aware D. elegant

4.A. recommend B. write C. reflect D. read

5.A. consists of B. belongs to C. settles in D. leaves out

6.A. keep B. gather C. watch D. record

7.A. with B. of C. by D. as

8.A. brought B. adjusted C. adapted D. bound

9.A. transport B. show C. carry D. guide

10.A. surroundings B. signals C. conditions D. gestures

11.A. but B. because C. and D. so

12.A. meals B. breaks C. rewards D. repairs

13.A. desires B. clicks C. drags D. lasts

14.A. old B. bad C. low D. poor

15.A. spends B. costs C. pays D. takes

16.A. service B. work C. control D. order

17.A. Because B. Though C. When D. Unless

18.A. though B. unless C. as D. if

19.A. willingly B. normally C. fearfully D. occasionally

20.A. dangerous B. handy C. hopeful D. energetic

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