补全短文 Task 2
A. a daily energy cycle
B. at your low point
C. habitually staying up later
D. husbands and wives
E. at its peak
F. your energy cycle

填空题 21.Dr. Kleitman has proved that everyone has______.

填空题 22.The time of day when you feel most energetic is when your cycle of body temperature is______.

填空题 23.Much family quarrelling ends when______realize what these energy cycles mean.

填空题 24.You can learn to make your life fit______better.

填空题 25.If you rise before your usual hour, you’ll get up steam and work better______.