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People began to make robots about a few 【小题1】 years ago. In the past, some of the early ones 【小题2】 like animals or humans. However, they couldn’t 【小题3】 and were pretty dumb（哑的，沉默的）. They worked like clocks and did the same things over and over 【小题4】. Modern robots don’t always look like people. Some 【小题5】 like big machines; others are nothing but long arms attached to boxy（箱子般四四方方的）bodies. However, modern robots are smart. Some can solve（解决） 【小题6】 on their own. Their brains are computers and their eyes are sensors （传感器）. Motors（发动机）help them 【小题7】. In the future, robots will learn from their mistakes more than they do now. They will be much 【小题8】. It’s 【小题9】 that we will have robot shop assistants, robot household workers, and robot factory workers, and robots will help people to do 【小题10】 things.