阅读短文，选词填空。
(jobs map look useful took how part)
What do you know about a robot? Robots are machines that can be made to do certain things. They
are in all shapes. For example, puppy (a young dog) robots 1 like real ones. They jump and bark (吠).
Robots can do many 2 people can't do. Robots can go where people can't go and bring back important
information. In 1997, scientists sent a robot to Mars. It 3 pictures of rocks and soil, which helped
scientists understand 4 0ur own planet works. Scientists even used a robot to make a 5 of a
volcano. So robots are very 6 machines. They play a very important 7 in our life. They help people
understand the world we live in.
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