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Of all the components of a good nights sleep, dreams seem to be least within our control. Indreams, a window opens into a world where logic is suspended and dead people speak. Acentury ago, Freud formulated his revolutionary theory that dreams were the disguisedshadows of our unconscious desires and fears; by thelate 1970s, neurologists had switched tothinking of them as just "mental noise"-the random byproducts of the neural repair work thatgoes on during sleep. Now researchers suspect that dreams are part of the minds emotionalthermostat, regulating moods while the brain is "off line." And one leading authority says thatthese intensely powerful mental events can be not only harnessed but actually brought underconscious control, to help us sleep and feel better. "Its your dream," says RosalindCartwright, chair of psychologyat Chicagos Medical Center, "if you dont like it, change it."

he link between dreams and emotions shows up among the patients in Cartwrights clinic. Mostpeople seem to have more bad dreams early in the night, progressing toward happier onesbefore awakening, suggesting that they are working through negative feelings generatedduring the day. Because our conscious mind is occupied with daily life we dont always thinkabout the emotional significance of the days events-until, it appears, we begin to dream.

And this process need not be left to the unconscious. Cartwright believes one can exerciseconscious control over recurring bad dreams. As soon as you awaken, identify what isupsetting about the dream. Visualizehow you would like it to end instead; the next time itoccurs, try to wake up just enough to control its course. With much practice people can learnto, literally, do it in their sleep.

At the end of the day, theres probably little reason to pay attention to our dreams at all unlessthey keep us from sleeping or "we wake up in panic," Cartwright says. Terrorism, economicuncertainties and general feelings of insecurity have increased peoples anxiety. Thosesuffering from persistent nightmares should seek help from a therapist. For the rest of us, thebrain has its ways of working through bad feelings.Sleep-or rather dream-on it and youll feelbetter in the morning.

练习题：

Choose correct answers to the question:

1.By saying that “dreams are part of the minds emotional thermostat," (Lines 4-5, Para. 1) the researchers mean that _______.

A.we can think logically in the dreams too

B.dreams can be brought under conscious control

C.dreams represent our unconscious desires and fears

D.dreams can help us keep our mood comparatively stable

2.What did Cartwright find in her clinic?

A.Most bad dreams were followed by happier ones.

B.Divorced couples usually have more bad dreams.

C.One’s dreaming process is related to his emotion.

D.People having negative feelings dream more often.

3.Cartwright believed with much practice，we can learn to _____.

A.control what dreams to dream

B.sleep well without any dreams

C.wake up in time to stop the bad dreams

D.identify what is upsetting about the dreams

4.The author points out that a person who has constant bad dreams should ______

A.learn to control his dreams

B.consult a doctor

C.sleep and dream on it

D.get rid of anxiety first

5.The author most probably thinks that controlling dreams is ______.

A.a good practice

B.a new discovery

C.helpful for everyone

D.not essential for everyone

1.[D] 词义理解题。在第1段第4句中，逗号后面的regulating moods是对emotional thermostat的功能进行解释说明，因此可以推断出选项D正确。

2.[C] 事实细节题。最具干扰的是选项A，因为其陈述与第2段第2句的陈述有点相似,但是，此长句说的是大多数人上半夜做噩梦，之后都会做好梦，而不是像选项A中所说大多数噩梦之后是好梦。而且，根据本段第1 句，很明显，选项C是这一句的近义替换。

3 [C] 推理判断题。本题考査对代词的理解。在第3段的最后一句中，代词it应指上文说到的控制噩梦，及时醒来等做法，因此只有选项C涉及了其中一个做法。选项A太泛了，选项B和D在文中并无提及。

4.[B] 事实细节题。本题考查根据构词法猜测词义的能力。解题关键是推断最后一段第3句中therapist的意义，在考纲词汇表中，therapy是“治疗”的意思，因此，therapist应该是专门负责某种治疗的医生，由此可见，选项B是对原文seek help from a therapist的近义替换。

5.[D] 观点态度题。根据最后一句可以推断作者认为如无必要，梦还是不要控制的好。做梦会让你早上感觉舒服一些，因此本题应选D。