A.convert
B.on
C.something
A. Both【T1】______ that fuel, first into heat
B. Both run【T2】______ fuel
C. turning it into【T3】______ else
The process of gaining or losing weight can be explained by comparing your body to your car.【T4】______ , food for your body and gasoline for your car.【T5】______ , then energy, some of which is used to do work, and some emitted as waste. And just as your car uses more energy when the engine is racing than when it is idling, so does your body use more energy when you are working hard than that you are resting. For the purpose of this comparison, however, there is one significant difference between them. Your car cannot store fuel by【T6】______; all gasoline not consumed remains as gasoline. But your body stores excess energy as fat. When the gas tank is completely empty, the car won't run; but your body can burn fat to provide more energy.