选词填空：用适当形式填空，每空限用一次。

health,   enough,   good,   sleep,  late,    hour,  much,  loudly,  have,  work

   Everyone needs to sleep. During the day you work and play; at night you sleep. Your body rests while you are    1   . In the morning you are ready to    2   , study or play again. If you sleep   3   at night, you can work or learn better in the day.
Your body grows more while you are asleep. No one can live without sleeping. If a child is tired, he needs     4   sleep than usual. You will be tired or will not be able to listen to your teachers in class or can’t work well if you do not have 5  sleep at night. A baby will cry    6    if you wake him or her up when he or she is sleeping. You will be able to do well in your lessons if you    7    enough rest. Many students hope to learn more before rests, so they study till     8   at night. But they feel very tired in the day and they may forget more.
Boys and girls of eight or nine need ten      9   of sleep every night. Get enough sleep if you want to be strong and     10    .