50．A．clever                     B．foolish（愚蠢的）  C．thin                       D．beautiful

A

IMPROVE ON SLEEP

Good health needs good sleep．Going to bed before you’re tired．Not eating or reading in bed．Go to bed at the same time before midnight and get up at the same time．Your body likes routine（常规）for a good night’s sleep．

STAY FREE OF FLU

49．A．fat                         B．heavy                     C．thin                       D．large

48．A．something               B．anything                 C．nothing                  D．a lot