Do you find 1       (get) up in the morning so difficult that it's painful? This might be called laziness,but Dr. Kleitman has a new 2       (explain) . He has proved that everyone has a daily energy cycle.

During the hours when you devote to your work you may say that you're "hot". That's true. The time of day when you feel most 3       ( energy) is when your cycle of body temperature is 4        its peak. For some people the peak comes during the forenoon. For others it 5        in the afternoon or evening. No one has discovered why this is so,but it leads to such familiar monologues (自言自語) as: "Get up,John!You'll be late for work again!" The possible explanation to the trouble is that John is at his temperature and energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.

You can't change your energy cycle,but you can learn to make your life fit it better. Habit can help. Maybe your're sleepy in the evening but feel you must stay 6        late anyway. Counteract (乂于抗) your cycle to some extent 7        habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam (鼓足干勁) and work better at your low point.

Get off to a slow start which saves your energy. Get up with a leisurely yawn and stretch. Sit on the edge of the bed a minute before 8       (put) your feet on the floor. 9       (avoid) the troublesome search for clean clothes by laying them out the night before. Whenever possible,do routine work in the afternoon and save tasks 10       (require) more energy of concentration for your sharper hours.

1.                  2.                  3.         4.          5.         

6.         7.                8.                  9.          10.         

1. getting   2. explanation   3. energetic   4. at   5. comes   6. up   7. by   8. putting   9. Avoid   10. requiring

題目來源：高考英語組合訓(xùn)練（閱讀七選五+短文填詞+短文改錯） > 組合訓(xùn)練9

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