Some  gadgets(小器具) are not big, but they can really change our lives. According to an American magazine, one of the coolest gadgets of 2006 is an alarm clock. Different from other traditional ones, this clock can fly in the air.
       Many people have trouble getting out of their beds in the morning. So they set their alarm clocks to wake them up on time. But some heavy sleepers may turn off the alarm and go on sleeping. And in this way, they may still be late for school or work. To solve the problem, some people invented the cool flying alarm clock.
      When the alarm goes off, the top part of the clock will take off and fly around the room, making an annoying mosquito-like noise to wake you up. So you have to find and