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还记得科学家们认为吸烟会致人死亡，而那些怀疑者们却坚持认为我们无法对此得出定
论的时候吗？还记得怀疑者们坚持认为缺乏决定性的证据，科学也不确定的时候吗？还记得怀疑者们坚持认为反对吸烟的游说是为了毁掉我们的生活方式，而政府应该置身事外的时候吗？许多美国人相信了这些胡言乱语，在三十多年中，差不多有一千万烟民早早的进了坟墓。
现在出现了与吸烟类似的令人感到难过的事情。科学家们前仆后继，试图使我们意识到全球气候变暖所带来的日益严重的威胁。最近的行动是由白宫召集了一批来自国家科学院的专家团，他们告诉我们，地球气候毫无疑问正在变暖，而这个问题主要是人为造成的。明确的信息表明是我们应该立刻着手保护自己。国家科学院院长Bruce Alberts在专家团报告的前言中加上了这一重要观点：―科学解答不了所有问题。但是科学确实为我们的未来提供了最好的指导，关键是我们的国家和整个的世界在做重要决策时，应该以科学能够提供的关于人类现在的行为对未来影响最好的判断作为依据。
就象吸烟问题一样，来自不同领域的声音坚持认为有关全球变暖的科学资料还不完整。在我们证实这件事之前可以向大气中不断的排放气体。这是一个危险的游戏；到了有百分之百的证据的时候，可能就太晚了。随着风险越来越明显，并且不断增加，一个谨慎的民族现在应该准备一份保单了。
幸运的是，白宫开始关注这件事了。但是显然大多数总统顾问并没有认真看待全球气候变暖这个问题。他们没有出台行动计划，相反只是继续迫切要求进行更多的研究――这是一个经典的―分析导致麻痹案例‖。
为了成为地球上有责任心的一员，我们必须积极推进对于大气和海洋的深入研究。但只有研究是不够的。如果政府不争取立法上的主动权，国会就应该帮助政府开始采取保护措施。弗吉尼亚的民主党议员Robert Byrd提出一项议案，从经济上激励私企，就是一个良好的开端。许多人看到这个国家正准备修建许多新的发电厂，以满足我们的能源需求。如果我们准备保护大气，关键要让这些新发电厂对环境无害。
2005 Text 3
Of all the components of a good night's sleep, dreams seem to be least within our control. In dreams, a window opens into a world where logic is suspended and dead people speak. A century ago, Freud formulated his revolutionary theory that dreams were the disguised shadows of our unconscious desires and fears, by the late 1970s. neurologists had switched to thinking of them as just ―mental noise‖ the random byproducts of the neural-repair work that goes on during sleep. Now researchers suspect that dreams are part of the mind's emotional thermostat, regulating moods while the brain is ―off-line‖ And one leading authority says that these intensely powerful mental events can be not only harnessed but actually brought under conscious control, to help us
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sleep and feel better, ―It's your dream‖ says Rosalind Cartwright, chair of psychology at Chicago's
Medical Center. ―If you don't like it , change it.‖
Evidence from brain imaging supports this view. The brain is as active during REM (rapid eye movement) sleep-when most vivid dreams occur-as it is when fully awake, says Dr, Eric Nofzinger at the University of Pittsburgh. But not all parts of the brain are equally involved, the limbic system (the ―emotional brain‖)is especially active, while the prefrontal cortex (the center of intellect and reasoning) is relatively quiet. ―We wake up from dreams happy of depressed, and those feelings can stay with us all day‖ says Stanford sleep researcher Dr, William Dement.
The link between dreams and emotions shows up among the patients in Cartwright‘s clinic. Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated during the day. Because our conscious mind is occupied with daily life we don‘t always think about the emotional significance of the day‘s events-until, it appears, we begin to dream.
And this process need not be left to the unconscious. Cartwright believes one can exercise conscious control over recurring bad dreams. As soon as you awaken, identify what is upsetting about the dream. Visualize how you would like it to end instead, the next time is occurs, try to wake up just enough to control its course. With much practice people can learn to, literally, do it in their sleep.
At the end of the day, there's probably little reason to pay attention to our dreams at all unless they keep us from sleeping or ―we wake up in a panic,‖ Cartwright says Terrorism, economic uncertainties and general feelings of insecurity have increased people's anxiety. Those suffering from persistent nightmares should seek help from a therapist.For the rest of us; the brain has its ways of working through bad feelings. Sleep-or rather dream-on it and you'll feel better in the morning.
31. Researchers have come to believe that dreams [A]. can be modified in their courses. [B]. are susceptible to emotional changes. [C]. reflect our innermost desires and fears. [D]. are a random outcome of neural repairs.
32. By referring to the limbic system, the author intends to show [A]. its function in our dreams. [B]. the mechanism of REM sleep. [C]. the relation of dreams to emotions. [D]. its difference from the prefrontal cortex.
33. The negative feelings generated during the day tend to [A]. aggravate in our unconscious mind. [B]. develop into happy dreams.
[C]. persist till the time we fall asleep. [D]. show up in dreams early at night.
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34.Cartwright seems to suggest that
[A]. waking up in time is essential to the ridding of bad dreams. [B]. visualizing bad dreams helps bring them under control. [C]. dreams should be left to their natural progression. [D]. dreaming may not entirely belong to the unconscious.
35. What advice might Cartwright give to those who sometimes have bad dreams? [A]. lead your life as usual. [B]. Seek professional help. [C]. Exercise conscious control.
[D]. Avoid anxiety in the daytime.
核心词汇： component
（组成部分，部件，元件）Blade and handle are the
component parts of a knife. 刀身和刀柄是刀的组成部分［巧记］=componere,即com全体+ponere放置。 suspend
（暂停，中止；悬挂） suspend particles of dust.悬浮在空中的尘埃
suspend a football player. 一名球员被暂停比赛 The magazine suspended 杂志暂时停刊
Freud 弗洛伊德（1856～1939） 奥地利神经精神病学家，精神分析创始人
formulate
（构想出，系统地阐述） formulate one‘s ideas into a theory.
系统地阐述自己的思想使之成为理论 the contract was formulated in difficult legal languagee. 该合同使用深噢的法律术语订立的［巧记］formula(公式,方程式)
revolutionary
（革命的，重大变革的）a revolutionary machine
一部创新的机器 Genetic engineering will have revolutionary consequences for markind.遗传工程将对人类产生深远的影响［巧记］re+volu=roll,turn 转，滚卷+tion +ary。 disguise
（伪装，掩饰）He disguised himself as a woman.他假扮成一女子。 The
Prime Minister couldn‘t disguise his anger. 首相怒形于色 It is impossible to disguise the fact
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that finance is bad.财政困难这一事实是无法隐瞒的。
unconscious （下意识的，无意识的；失去知觉的） 即un无+con共同+sic=know知道+ous。 an unconscious slight 无意的冒犯 He lay unconsciouss for some hours.他昏迷了好几个小时
neurologist （神经病学家, 神经科医师） neuro-神经。 neural 神经系统的 switch
（转变，转向） Switch the conversation to a different topic. 改变谈话的
话题 He switched his horse to make it go faster.他挥鞭以策马 random
（随机的，任意的）at random 无目标地 a random guess随意乱猜 a
random talk 漫谈 draw the winning numbers at random. 任意抽出的中奖数字
byproduct （副产品）An increasee in crime is one of the byproducts of unemployment. 犯罪率增加是失业问题造成的恶果 [联想记忆] bypass 旁路、小道 bywork 副业 byname 绰号
thermostat （调温器）［巧记］ thermo=of heat 热的 regulate
（调节；管理，控制）reg=rule统治，控制。The volume of
economic activity was regulated by the supply of money. 经济活动范围的大小是受提供资金的多少制约的 harness
（治理，利用） harness a river 治河 harnesss nuclear energy 利用核
能 harnesss indivdual talents to a comm.on end. 把各人的才能用于一个共同的目标 occur
（出现，发生） Fish occur in most waters. 大多数江河湖海中都有鱼 That
sound doesn‘t occur in his language. 他讲的语言中没有这个音
limbic system （[大脑] 边缘系统）
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prefrontal cortex （[大脑]前额叶皮层） recur
（反复出现，再发生） re+cur跳，发生。 This theme recurs constantly throughout
the opera.这一主旋律在该歌剧中不断出现 Thoughts of home and family recurred to the lonely traveler.对家人和亲人的思恋重新浮上孤寂旅人的心头 visualize
（想象；使形象化） vis=see看。 I cann‘t visualize myself ever
getting married. 我不能想象我有朝一日能结婚
significance （重要性：重要的状态或性质）Few peoplee realized the significance of the discovery.很少有人意识到这一发现的重要性［巧记］sign=mark 记号，标记。
persistent （持续的，坚持不懈的）She eventually married the most persistent of her admires. 她终于嫁给了最执著追求她的人［巧记］即per从头到尾+sist=stand站立+ent→始终站立着→坚持。[联想记忆]insistent(坚持不懈的) The dean's very insistent that they should finish the papers in time.系主任非常坚决地要求他们按时完成论文。
nightmare
（梦魇，恶梦）I have nightmare about falling off a cliff.我做梦梦见
从悬崖上摔下来［巧记］ night夜+mare母马
therapist （治疗学家） a psychology therapist 心理治疗专家 [联想记忆] psychotherapy 心理疗法
at the end of the day(说穿了,说到底,说白了)I don‘t really wish to earn a lot of money, I just want to be healthy. At the end of the day, that‘s what really matters.我并不希望赚大钱,我只希望身体健康.说到底,这才是真正重要的.
难句解析： ①And one leading authority says that these intensely powerful mental events can be not only harnessed but actually brought under conscious control, to help us sleep and feel better,
该句子的主干是间接引语，其宾语是that引导的宾语从句。宾语从句的主干是these events can be not only harnessed but actually brought……，其中not only…but(also) 并列连词结构连接两