第 3 课：Where Does the Word “ Robot ” Come From ？Robot是如何得此名字的？
The word robot comes from the Czech word robota ， meaning heavy labour ．机器人 (Robot) 来源于捷克语 Robota 一词，意思是“累人的活”。
A robot is a machine that works automatically． 机器人就是一种能自动操作的机器。
Robots can do a wide variety of tasks． They are especially suitable for doing jobs too boring ， difficult ， or dangerous for human beings ．机器人可以做许多工作，尤其适用于从事那些人们看来单调、困难、危险的工作。
Robots efficiently carry out such routine tasks as welding ， drilling and painting automobile body parts ．机器人能有效地做那些重复性的劳动，如焊接、钻孔和为汽车零部件喷漆。
They also produce plastic food containers and wrap ice cream bars ．它们还能用于制造塑料食品包装容器或包扎雪糕等工作。
Some industrial robots can even make electronic equipment and watches ． 有些工业机器人还能组装电子设备和手表。
The science and technology that deals with robots is called robotics ．研究机器人的科技叫人工智能学。
A typical robot performs a task by following a set of instructions that tells it exactly what must be done to complete the job ．一台典型的机器人必须通过精确执行它被告知的完成一项工作的一系列指令才能完成任务，
These instructions are entered and stored in the robot's “ brain ” of a computer or part of a computer ．这些指令储存在其“头脑”即计算机内。
