A robot can not think or do things alone . People use a computer to control it .Today , robots are not very popular because they are too expensive ,but they are very useful .They can help us save a lot of time and work . A robot can do the same work for 24 hours , and yet , it does not complain or get tired . In the US , people use robots to guard some important places . There robots can listen to certain noises and send signals for help if there's trouble or danger.In Japan , people use robots in factories to build cars .In the future , scientists will design many types of intelligent robots . Thier robots will be able to do many more complicated things .However , some people do not like robots . They fear that one day robots will be too powerful
1 . how long can a robot do ?
2. the words " it " in the passage refers to..........................
3. what do japanese people use robots in factories for?
4. some poeple fear that one day robots......................................
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1. a robot can do the same work for 24 hours
2. the words it in the passage refers to robot
3. japanese people use robot in factories for build cars
4. some people fear that one day robots will be too powerful
1. Beacause it can't think or do things alone.
2. No, they aren't.
3. People in the US use robot to guard some important places.
4. People use robots in factories to build cars.