[单项选择]At the present time, 98 percent of the world energy consumption comes from stored sources, such as fossil fuels or nuclear fuel. Only hydroelectric and wood energy represent completely renewable sources on ordinary time scales. Discovery of large additional fossil fuel reserves, solution of the nuclear safety and waste disposal problems, or the development of controlled thermonuclear fusion will provide only a short-term solution to the world’s energy crisis. Within about 100 years, the thermal pollution resulting from our increased energy consumption will make solar energy a necessity at any cost.
Man’s energy consumption is currently about one part in ten thousand that of the energy we receive from the sun. However, it is growing at a 5 percent rate, of which about 2 percent represents a population growth and 3 percent a per capita energy increase. If this growth continues, within 100 years our energy consumption will be about 1 percent of the absorbed solar energy, enough to in
A. the earth’s increasing population
B. melting of the polar ice caps
C. increase in per capita energy consumption
D. expected anomalies in weather patterns

[单项选择]At the present time, 98 percent of the world energy consumption comes from stored sources, such as fossil fuels or nuclear fuel. Only hydroelectric and wood energy represent completely renewable sources on ordinary time scales. Discovery of large additional fossil fuel reserves, solution of the nuclear safety and waste disposal problems, or the development of controlled thermonuclear fusion will provide only a short-term solution to the world’s energy crisis. Within about 100 years, the thermal pollution resulting from our increased energy consumption will make solar energy a necessity at any cost.
Man’s energy consumption is currently about one part in ten thousand that of the energy we receive from the sun. However, it is growing at a 5 percent rate, of which about 2 percent represents a population growth and 3 percent a per capita energy increase. If this growth continues, within 100 years our energy consumption will be about 1 percent of the absorbed solar energy, enough to in
A. describing a phenomenon and explaining its causes
B. outlining a position and supporting it with statistics
C. isolating an ambiguity and clarifying it by definition
D. presenting a problem and advocating a solution for it

[简答题]Directions: The present world witnesses invention and use of various robots, some of whom even can play games with human and defeat the latter. Such being the case, many are worried that robots will surpass human beings in intelligence and enslave them, while others believe that the human mind will always be superior to machines because machines are only tools of human minds. What is your opinion Write an essay of about 400 words.
In the first part of your essay you should state clearly your main argument, and in the second part you should support your argument with appropriate details. In the last part you should bring what you have written to a natural conclusion or make a summary.
You should supply an appropriate title for your essay.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.

[单项选择]The world leaders need to take action on the energy crisis that is （　） before our eyes.
A. taking shape
B. taking effect
C. taking apart
D. taking over

[单项选择]About ten percent of the world’s deserts are composed of sand dunes, which are driven across the desert by the wind. Sand grains march across the desert floor under the influence of strong winds by a process known as saltation. The grains of sand become airborne for a moment, and upon landing they dislodge additional sand grains, which repeat the process. In this manner, sand dunes engulf everything in their path, including structures made by people, and pose a major problem in the construction and maintenance of highways and railroads that cross sandy areas of desert. Sand dune migration near desert oases poses another serious problem, especially when encroaching on villages. Methods to mitigate damage to structures from sand dunes include building windbreaks and funneling sand out of the way. Without such measures, disruption of roads, airports, agricultural settlements, and towns could become a major problem in desert regions.
The direction, strength, and variability of the w
A. Their location.
B. Their destructiveness.
C. Their formation.
D. Their disappearanc

[简答题]

61. Women make up 40 percent of the world’s work force in agriculture, a quarter in industry, and a third in services. Women farmers in the developing countries grow at least 50 percent of the world’s food, as much as 80 percent in some African countries.
62. In addition to income and generating activities ( in cash and kind), women’s household activities include caring for the sick, house maintenance, and such vital work as caring for children, preparing food, and fetching firewood and water. Yet women’s productivity remains low. both in income-generating work and in home production. Improving women’s productivity can contribute to growth, efficiency, and poverty reduction. Key development goals everywhere.
63. Investing in women —in education, health, family planning--is thus an important part of development strategy as well as a matter of social justice. It is an integral part of the World Bank’s ov