词汇：
envision v. 想象，预想
device n. 装置
accentuate v. 强调，重读
artificial intelligence n. 人工智能
limb n. 臂
antennae n. 天线
incline v. 倾斜
pendulum n. 钟摆
ultrasonic adj. 超声的
metallic adj. 金属的
monotone n. 单调的
humanoid adj. 像人的
axle n. 轮轴
rotate v. 旋转
swivel n. 旋转
teeter v. 摇晃
gyroscope n. 陀螺仪，回转仪
vertical n. 直立的
注释：
1.To find its way in its surroundings...：为了在周围找到路??
2.the robot bounces beams of laser light and ultrasonic sound waves off obstructions in its path：机器人发射激光束和超声波，反射到障碍物上(以此来探知路径)。 练习：
1. Another good title for this passage would be
A. Robots: Taking the Place of Humans.
B. Artificial Intelligence Programs.
C. Today’s Robots and How They Function.
D. Modern-Day Sensors.
2. Artificial intelligence is
A. the unnatural way in which robots move.
B. a voiceless, box-shaped machine that performs repetitive tasks.
C. sensors such as antennae and a gyroscope.
D. a computer program that imitates human intellectual processes.
3. The last paragraph suggests that future robots will be
A. more humanlike in behavior and actions.
B. more like automatic machines.
C. better able to move on inclines.
D. better equipped with laser light sensors.
4. The writer begins the passage by comparing
A. the shape of a human being with a box.
B. a modem robot with a fictional robot.
C. an imaginary machine with a human.
D. a computer program with artificial intelligence.
5. The word humanoid means
A. lacking human characteristics.
B. anything having the appearance of a humanoid.
C. being void or vacant.
D. having a human form or characteristics.
答案与题解：
1.C 从文中得知，文章主要介绍了机器人和它们的运行方式，因此选择C选项。
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