For most of human history, the dominant concerns about energy have centered on the benefit
The crucial question at the beginning of the 1990's is whether the trend that began in the 1970's will prove to be temporary or permanent. Is the era of cheap energy really over, or will a combination of new resources, new technology and changing geopolitics bring it back？ One key determinant of the answer is the staggering scale of energy demand brought forth by 100 years of population growth and industrial demand.
Except for the huge pool of oil underlying the Middle East, the cheapest oil and gas are already gone. Even if a few more giant oil fields are discovered, they will make little difference against consumption on today's scale. Oil and gas will have to come increasingly, for most countries, from deeper in the earth and from imports whose reliability and afford-ability cannot be guaranteed.
AI搜题
NEW
搜题
第1题
Title: The Future Prosperity of Our Country and the Peasant Problem
Outline: A. The encouraging economic situation of our country and the low-income level of our peasants
B. The core of our peasant problem and the way-out for our peasants
C. Measures to be taken to speed up the reform. in our countryside to increase the income of our peasants
第2题
for inclusion in its database. Indeed, it is sometimes argued that the survival of a particular journal depends on ISI' s decision to cover it in Current Contents. A journal's ultimate success depends upon its quality, distribution, and many other competitive factors including cost and timeliness. Any one of these factors, including coverage by ISI, can make the difference between success and failure.
A journal's reputation may not tell the complete story about its impact on the scholarly community. In fact, a study on social science journals suggests quite the opposite. Their research showed that there is a nonlinear relationship between a journal's reputation and its impact, especially at the extremes of the prestige scale. They conclude that citation data "permit scholars to evaluate the importance of journals based not on Opinion but on the frequency of citations" and that "frequency of citation implies scholarly acceptance, or at least acknowledgment of importance through utilization of others' work." The researchers go on to mention that "journals have prestige, but their prestige is only derived from the usefulness of the articles they publish."
第3题
y ago. Deep economic inequalities and social injustices continue to deny good health to many and persist as obstacles to continued health gains worldwide. There is also great variation in the pace and level of health achievements both between and within countries around the world. One possible explanation is that health sector reforms that began in the late 1980s as part of the structural adjustment programmes of the World Bank have not been conclusively shown to improve inequities;in some cases they may have worsened them.
We now confront with four key challenges for health research:values of ethics,equity and excellence, sustainable health research systems,favorable research environment,and knowledge production and application. To rise to the challenge,health systems and health research together should move into a learning and problem-solving mode,integrate innovation into their operations and better manage opportunities for future growth and development. There are no quick fixes, no simple solutions and much remains to be learnt.
第4题
后的各种活动中感觉到更大程度的自我价值感。他们不用再忍受严酷或有害健康的工作环境。他们不再需要把精力放在职位的升迁或财富的获取上。拥有毅力和幽默感，退休生活就可能成为你一生中最幸福的阶段之一。
第5题
to shape our outlook and our expectations. There is enough good and bad in everyone's life—ample sorrow and happiness, sufficient joy and pain—to find a rational basis for either optimism or pessimism. We can choose to laugh or cry, bless or curse. It's our decision: From which perspective do we want to view life? Will we look up in hope or down in despair? I believe in the upward look. I choose to highlight the positive and slip right over the negative. I am an optimist by choice as much as by nature.
第6题
d to attack Iraq. The probability of war could easily push the oil price back into the $ 35 ~ $ 40 a barrel range for at least a few months. In effect, that would impose a big new tax on consumer spending and corporate profits. The prospect of monetary tightening and a sharp increase in the oil price suggests that late 2002 and early 2003 could be a period of great volatility for the US economy.
第7题
rates late this year, which would eliminate capital gains as a prop for consumer spending. Rising interest rates could also damp the rally likely to occur in the equity market as corporate profits recover. If investment spending fails to revive, the economy's annual growth rate could slide back to the 2 ~3 percent
第8题
Learned Is Contained in Books".
第9题
瑞典公布的一项研究结果有力地证实，单亲家庭的孩子比双亲家庭的孩子更容易患心理疾病。
五分之一瑞典家庭的孩子是由单亲父母带大的。鉴于该国和其他工业化国家的离婚率创下历史新高的现状，来自“国家健康和福利委员会”的一个政府小组试图搞清那些和单亲父母生活在一起的孩子的社会生活状况。
在对6．5万名单亲孩子进行了9年跟踪调查后，研究人员在医学期刊《柳叶刀》上发表报告说，这些孩子在身心方面的健康状况均不如在双亲家庭中生活的孩子。
行为科学家格尼拉-琳班克-韦特福特说，“我们发现，单亲家庭的孩子出现不良后果的危险在增加。”她说，单亲家庭的孩子更容易患精神方面的疾病、发生自杀行为、酗酒和吸毒。
(2)该研究显示，问题的主要原因是经济拮据，这取决于父亲(或母亲)是否领取社会福利以及没有自己的住房而租房居住。越穷的家庭，孩子表现得越糟糕。
韦特福特女士说，其他工业化国家的单亲孩子的境遇更糟糕，因为他们没有瑞典那种使大多数公民免于贫困的广泛福利金。“从国际角度来看，和别的国家相比，瑞典的单亲父母的社会经济状况似乎是相当优越的。”
但是，瑞典不存在经济拮据的状况令英国利物浦大学的公共健康专家玛格利特?怀特海德怀疑，在该研究报告提出的问题背后是经济地位在起作用。
(3)她说：“这份研究报告指出了令人严重关注的健康问题；但它却没有告诉我们问题出现的原因；以及我们该从何下手加以援助。”
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第10题
Academic Field in China. You should base your composition on the outline given in Chinese below. Remember to write neatly on the ANSWER SHEET.
目前在学术界出现了剽窃和抄袭等不良现象。作为一名未来的博士研究生，你如何看待这些现象，你认为应该如何制止，以及你应该如何从自身做起。
