Question

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

During the hours when you labor at work, you may say that you're "hot". That's true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people, the peak comes during the morning. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues as: "Get up, John! You'll be late for work again!" The possible explanation for the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarreling 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, Dr Kleitman believes. Maybe you're sleepy in the evening but feel you must stay up late anyway. Counteract(对抗) your cycle by 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 earlier and work better at your low point.

Get off to a slow start, this saves your energy. Get up with a comfortable yawn(哈欠)and stretch. Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.

4. Which of the following may lead to family quarrels according to the passage?

A. Not knowing the energy cycles.

B. Familiar monologues.

C. Family members have the same energy cycles.

D. One of the family members can control the energy cycle of other family members.

5.You are advised to rise with a yawn and stretch because it will________.

A. help to keep your energy for the day's work

B. help you to keep calm early in the day

C. enable you to work well

D. keep your energy cycle under control all day

Answer 1

4. A。第二段最后一句即本题答案出处。5. A。最后一段即本题答案出处。