四六级考试阅读的备考

　　During the hours when you labor through your work you may say that you re hot. Thats 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 forenoon. 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! Youll 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.

四六级考试阅读的备考

　　33. If one wants to work more efficiently at his low point in the morning, he should _________.

　　A) change his energy cycle B) overcome his laziness

　　C) get up earlier than usual D) go to bed earlier

　　注：定位第三段

　　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 youre sleepy in the evening but feel you must stay up late anyway. Counteract your cycle to some extent 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 youll get up steam and work better at your low point.