In our daily life，robots are often found to do work that is too dangerous，boring，difficult，or dirty.And we often see kids play with toy robots.
But what exactly is a robot？There are some important characteristics（特征）that a robot must have.These characteristics might help you to decide what is and what is not a robot.They will also help you to decide what you will need to build into a machine before it can be considered as a robot.A robot has these important characteristics：
Sensing
First of all，your robot would have to be able to sense the environment around jye.ai.It should have the following sensors（傳感器）：light sensors （eyes），touch sensors （hands），chemical sensors（nose）.hearing sensors（ears）and taste sensors（tongue）.
Movement
A robot needs to be able to move around its environment.It can move on wheels，walk on legs or be driven by small engines.A robot can move either the whole body or just parts of it.
Energy
A robot needs to be able to power itself.Some robots might power itself with sunlight some might with electricity while others with the battery（電池）.The way your robot gets its energy will depend or what your robot needs to do.
Intelligence
A robot needs some kind of "smarts".A programmer is the person who gives the robot its "smarts".The robot will have to have a certain way to receive the program so that it knows what to do.
（1）According to paragraph 1，what can robots do for people？ DD
A．Robots can teach，children.
B．Robots can learn by themselves.
C．Robots can join in competitions
D．Robots can do some unpleasant work.
（2）What does the underlined word "it" in Paragraph 2 refers to？ CC
A．The toy.
B．The characteristic.
C．The machine.
D．The engine.
（3）What can the chemical sensors help a robot to do？ CC
A．They can help robots to see.
B．They can help robots to hear.
C．They can help robots to smell.
D．They can help robots to catch things.
（4）In how many ways can a robot power itself according to the passage？ BB
A．Two.
B．Three.
C．Four.
D．Five.
（5）What is the writer's main purpose of writing the passage？ DD
A．To introduce the history of robots.
B．To describe the movement of a robot.
C．To tell what a robot can do in our life.
D．To help people understand what a robot is.
【考點】說明文；科技創(chuàng)新．
【答案】D；C；C；B；D
【解答】
【點評】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/4/20 14:35:0組卷：49引用：2難度：0.5
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