Do you find getting up in the morning so difficult?
1 But Dr. Kleitman has a new explanation (解释). He believes that everyone has a daily energy (能量) cycle (周期).
During the hours when you work, you may say that you’re “hot”. That’s true. The time of day when you are full of energy is when your cycle of body temperature is at the highest point. 2 For others, it comes in the afternoon or evening. No one has found out the reason behind it, but it results in such similar words as: “Get up, John! You’ll be late for work again!” 3 Maybe it is because John is at the highest point of his temperature and energy in the evening. Many family fights end when husbands and wives know 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 (适应) it better. 4 Maybe you’re sleepy in the evening but feel you must stay up late. If so, staying up later than you want to may counteract (抵消) your cycle. If your energy is low in the morning but you have an important job to do early in the day, get up before your usual hour. 5 But you can feel better and work better at your low point.
A．We might call this laziness.
B．Dr. Kleitman believes habits can help.
C．Is the daily energy cycle so important?
D．What is the possible explanation for this problem?
E．For some people, this point comes during the morning.
F．It won’t change your cycle.
答案与解析：
【答案】1．A 2．E 3．D 4．B 5．F
【解析】本文是一篇说明文。文章以“早晨起床困难”为切入点，引出克莱特曼博士关于“人体每日能量周期”的观点：每个人都有体温和能量的峰值时段 (有人在上午，有人在下午/晚上)；同时说明能量周期无法改变，但可以通过调整习惯来适应，让生活和工作更高效。
1．根据上文“Do you find getting up in the morning so difficult?”和下文“But Dr. Kleitman has a new explanation.”可知，上文提出“早晨起床困难”的问题，下文转折说“克莱特曼博士有新解释”，此处需衔接人们对起床困难的常见看法；选项A“我们可能会称之为懒惰。”符合语境，承接“起床难”的日常评价，再引出新解释。故选A。
2．根据上文“The time of day when you are full of energy is when your cycle of body temperature is at the highest point.”和下文“For others, it comes in the afternoon or evening.”可知，上文提到“能量峰值是体温最高的时段”，对其他人来说，峰值在下午/晚上；选项E“对一些人来说，这个峰值出现在上午。”中的“For some people”与“For others”呼应，衔接自然。故选E。
3．根据上文“Get up, John! You’ll be late for work again!”可知，上文举例“约翰总迟到”，而下文“Maybe it is because John is at the highest point of his temperature and energy in the evening.”是对约翰情况的解释；选项D“这个问题可能的解释是什么？”作为过渡句，引出下文的原因分析。故选D。
4．根据上文“You can’t change your energy cycle, but you can learn to make your life fit it better.”可知，本段的主题是“学会适应能量周期”，而下文举例说明如何调整习惯 (熬夜、早起)；选项B“克莱特曼博士认为习惯有帮助。”作为总起句，引出“通过习惯适应周期”的内容。故选B。
5．根据上文“You can’t change your energy cycle”(你无法改变能量周期) 和下文“But you can feel better and work better at your low point.”可知，此处承接“早起”的行为，说明其结果；选项 F“这不会改变你的周期。” 对应“早起”的影响，与下文转折逻辑一致。故选F。
中考英语六选五题型快速提分通道：
