12．
The Flowbee was invented over twenty-five years ago．What is it？It is a special machine that cuts hair．Was it invented by a barber？No!The Flowbee was made by an American man who built things with wood．
In 1987，Rick Hunt was working in his wood shop．A lot of wood was cut in the shop so little pieces of wood were everywhere．Pieces of wood were on the ground，on Hunt's shirt，and in his hair．The shop had a big vacuum（真空吸尘器）for cleaning．Hunt used it to clean himself．The pieces of wood were easily sucked（吸）from his clothes and his hair．As Hunt's hair was cleaned by the vacuum，he got an idea．"This would be a good way to cut hair，"He thought．
Some special parts were added to a common vacuum．In this way，the first Flowbees were built．These first Flowbees were sold out of Hunt's home．Then，a fall festival was held near Hunt's home．He took all of Flowbees there，and a lot of people bought them!Next，Hunt went on television with the Flowbee．More and More Flowbees were sold．
More than a million Flowbees were sold in America the next ten years．Today，this interesting machine is sold to people around the world．Hunt's clever way to cut hair really works．Sometimes great ideas come from surprising places．
51．What kind of machine is the Flowbee？B
A．A wood cutting machine．
B．A useful machine that cuts hair．
C．A funny machine that nobody uses
D．An expensive machine used in hospitals．
52．Where were the first Flowbee sold？D
A．On television．
B．On the internet．
C．In a barber shop．
D．From Rick Hunt's house．
53．Why was the Flowbee invented？A
A．To make less mess when we cut hair．
B．To give a nice feeling to our heads．
C．To make more money．
D．To help clean houses．
