问题补充：
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 36. He has proved that everyone has a daily energy cycle.
During the hours when you labour through your work, you 37 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 38. For some people the peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered 39 this is so , but it leads to such familiar monologues （自言自语）40 “Get up , John ! You’ll be late for work again!” The 41 explanation to the trouble is that John is at his temperature—and —energy peak in the evening. Much family quarrelling 42 when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has.
You can’t change your 43, but you can make your life 44 it better. Habit can help. Dr. Kleitman believes. Maybe you’re sleepy in the evening but feel you must stay up late 45. Counteract （打乱）your cycle to some extent by 46 staying up later than you want to . If your energy is 47 in the morning but you have an important job to do early in the day, 48 before your usual hour. This won’t change your cycle, but you’ll get up steam(打起精神) and work better 49.
Get off to a slow start 50 saves your energy. Get up with a yawn （呵欠）and 51 . Sit on the edge of the bed a minute before 52 on the floor. Avoid the 53 search for clean clothes by laying them out 54. Whenever possible , do routine （常规的）work in the afternoon and save tasks 55 more energy for your sharper hours .
【小题1】A．impression B．explanationC．explorationD．translation【小题2】A．mustB．shouldC．canD．may【小题3】A．at its bottomB．at its beginning C．at its endD．at its peak【小题4】A．whyB．thatC．whetherD．whatever【小题5】A．asB．such asC．whichD．like【小题6】A．steadyB．occasionalC．surprisedD．possible【小题7】A．startsB．comes backC．endsD．turns around【小题8】A．life attitudeB．energy cycleC．time tableD．alarm o’clock【小题9】A．to doB．changeC．fitD．to renew【小题10】A．anywhereB．no wayC．anywayD．somewhere【小题11】A．sensitively B．especiallyC．carefullyD．habitually【小题12】A．lowB．highC．oldD．new【小题13】A．go upB．riseC．liftD．raise【小题14】A．in your high spiritB．at the right timeC．at your low pointD．in the same way【小题15】A．whichB．whicheverC．whatD．whatever【小题16】A．expressB．attendC．openD．stretch【小题17】A．putting your feetB．setting your footC．laying down your footD．lying your feet【小题18】A．tiredB．troublesomeC．immediateD．dangerous【小题19】A．yesterdayB．last nightC．the night agoD．the night before【小题20】A．suggestingB．demandingC．requiringD．persuadingB
答案：
(答案→)B
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