42. There are robots around us. Some do very difficult jobs like flying planes and driving trains. (1)
Our eyes, ears and other parts of the body tell us what's happening around us. But robots have some very small computers in them. (2)
In some ways robots are better than humans. They work quickly and hardly make mistakes. (3)
And they don't get tired, either. (4)
They can do many different jobs. A person moves robots' "arms" and "hands" to do each part of the job.
The most intelligent robots can move and see. (5)
Their "fingers" can feel shapes and sizes of the things. These robots have computers linked (连接) to their "eyes" and "fingers", telling them what to do. Scientists usually use such robots in most of their important work.
A. So robots are very useful in factories. B. The computers can tell them what to do next. C. Their "eyes" are like cameras. D. Robots look like humans. E. And some do simple jobs. F. They never get bored although they do the same job over and over again. |