短文填空
The most important drink is water. Not many people understand this but it is quite t  1 . People can l  2   for a long time without food, but they will die if two or three days w  3   water. In h  2   weather, many people do not drink e  5   water, because they don’t know how much water they n  6  . After t  7   exercise, people need more water.
The water in man’s body is m  8   more than other matters(物质). We’d better have enough water, or we may get i  9  . Water is n  10   to all the living things. There will be no l  11   if there is no water.
So we must save water and don’t w  12   water.