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发布时间：2006-07-01 08:46     点击：

is going on around us. So robots are like people in two ways，They work

and they have feedback.

　　There are robots all around， making our lives easier. Some of them，

like the pocket calculator， can work much more quick1y than human beings

can. And they rarely make mistakes.

　　In some ways robots are better than people. They work quick1y， but

do not make mistakes， They do not get bored doing the same job over and

over again。 And they never get tired.

　　Robots are very useful in factories. They can be taught to do many

different jobs． First their electronic brains must be shown how the job

is done. A person moves the robot’s“arm” and“hand”through each part

of the job． The robot’s brain remembers each move。 When the robot is

put to work on its own， its brain controls the rods， wheels and motors

which move its arm.

　　When the robot is needed for a new job， its electronic memory is“

wiped clean.”Then it is taught how to do its new task.

　　If the robot’s hand stops working， or if something gets in the

way， it cannot do the next part of the job．So it stops and signals for

help，Then a human engineer repairs it.

　　The most“intelligent”robots can move and see. Their eyes are

cameras. Their metal fingers can feel shapes and even find out how hot

and cold objects are. These robots have computer brains，linked to their

eyes and fingers， which control their actions.

25．In this story the author tells us that______________.

　　A. there are vervfewrO6ots

　　B. we see robots only at certain tines

　　C. robot5are something new in our life

　　D. ro6ots are all around us

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