building, planet, sky, on computer, peace, future, be
1. The dove is the symbol of ________.
2. I like to see the bird flying in the blue ________.21教育网
3. They will build more and more tall ________ in our city.21cnjy.com
4. Kids won’t go to school and they can have classes at home in ________.
5. There are many kinds of _______ in the sky.
Robots seem very new to most people. But they have a long history. The 1 one was made by a Greek inventor(发明家). You may 2 robots in some films. The robots in these www.21-cn-jy.com
3 are stronger, faster and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring 4 . Some people can’t look after 5 and robots are used to help them. For example, some people can’t see. Many of these people use a 6 to help them move around. This dog is called a guide dog. 7 are making a robot to help them. In the future, robot dogs 8 take the place of(代替) these guide dogs.2·1·c·n·j·y
Robots are also 9 in American hospitals. At one hospital, a robot takes meals 10 the kitchen to the sick people’s rooms. It never loses its way because it has a map of the hospital in its computer system(系统). 【来源：21·世纪·教育·网】
In the future, robots will work in space. But robots will never take the place of huma