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    The World’s Most Intelligent Vacuum Cleaner

    The Dyson DCO6 vacuum cleaner can clean your floor by itself and save you valuable time. It contains three computers that make sure it doesn’t fall down stairs or clean the same place twice. This intelligent vacuum cleaner makes 16 decisions every second!

    The Smallest Computer Mouse

    The Cat Eye Ring is the name of the world’s smallest computer mouse. It is made in Taiwan, China. You wear it on your finger. It has buttons on it just like a larger computer mouse. Each time you rotate your hand, the 

    computer “knows” that the mouse has moved.

    The Thinnest Camera

    The Ultra-Pocket digital camera was made in Massachusetts in the United States. It is only 0.6 centimeter thick and weighs only 63.3 grams. It is about the same size as a credit card. It is the thinnest camera in the world.

    The Smallest Motorcycle

    A Swedish man named Tom Wiberg built the world’s smallest motorcycle that can be ridden by a person. The front wheel is 1.6 centimeters wide, and the back wheel is 2.2 centimeters wide. The rider sits 6.5 centimeters above the ground. Last year, Mr. Wiberg rode   

    his machine for more than ten meters.

    (    )6. Which statement is NOT TRUE about the Dyson DCO6 vacuum cleaner?

    A. It can save your time.                  B. It has more than one computer.

    C. It cleans the same place twice.  D. It makes 16 decisions a second.

    (    )7. How is the Cat Eye Ring different from all other computer mice?

    A. It has buttons.                             B. You wear it on your finger.

    C. It is made in Taiwan, China.   D. The computer “knows” when it moves.

    (    )8. The world’s smallest motorcycle was probably made ________.

    A. for the police                             

    B. for Mr. Wiberg to go to work on

    C. to sell to Swedish motorcycle riders            

    D. in order to be the smallest in the world

    (    ) 9. What is TRUE about all the machines in the reading?

    A. They are very small and thin.                           

    B. They have computers and wheels.

    C. You can buy them in stores.

    D. They are number one in the world in some way.

    答案

    CB DD


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