Question

   Of all the things people eat and drink, water is the most important. Not many of us understand this, but it is quite true. The human body can go without food for a long time, but two or three days without water usually make people dead.

 Many people don’t understand how much water the human body needs to work well and many people do not drink enough, especially(尤其) in hot weather. Most people drink when they are thirsty(口渴), but they often need more water especially when they take exercise.

  A man’s body has 65 to 75 percent water. If we do not drink enough water. We feel tired and may become ill.

根据短文内容完成下列句子，每空一词。（5分）

76. Not _________ knows the most important drink is _________ .

77. We can only live 2 or 3 days _________ water but we can live longer if we don’t have any _________.

78. _________ people drink water only when they are _________.

79. We need _________ water when we do _________.

80. If we don’t drink _________ water, we may feel  _________ and become ill.

   

Answer 1

 76. everyone  water 77. without  food 78. Most  thirsty 79. more  sports 80.enough tired