On the bright side ,the benefits offered by robots , especially those intelligent ones ,are apparent.To begin with ,robots can perform many burdensome tasks and thus release human beings from endless time-consuming and physically demanding work.Thank this, people can better manage their time and enjoy life with ease. In addition, robots can be assigned to work in dangerous and harsh environments. They are suited for exploring deep oceans and the moon, and can be used to save human workers from performing dangerous tasks as in the rescue work in an earthquake. Furthermore, robots with artificial intelligence can help people handle a huge amount of information. In the modern age of information explosion, robots can memorize, classify, filter and output information accurately at a faster speed.