2006年6月24日四级英语试题[完型填空]

PartV Cloze (15 minutes)

Do you wakr up every day feeling too tired ,or even upset?if so .then a new alarm clock could be just for you .The clock ,called Sleep Smart,measures your sleep cycle,and waits ___67___you to be in your lightest phase of sleep ____68___rousing you.Its makers say that should ____69____you wake up feeling refreshed every morning.
As you sleep you pass ___70___a sequence of sleep states-light sleep,deep sleep and REM(raipd eye movement)sleep-that ____71___approximately every90 minutes .The point in that cycle at which you wake can ___72____how you feel later ,and may ____73____have a greater impact than hoew much or little you have slept,Being roused during a light phase____74____you are more likely to wake up energetic.

答案：

67.C 68.D 69.A 70.A 71.D
72.B 73.D 74.A 75.C 76.B
77.C 78.D 79.D 80.B 81.C
82.A 83.C 84.B 85.D 86.A