[填空题]Cheap labor (scarcity was) in the cotton plantations (of the) American South, and (slaves) became (standard) practice. A. scarcity B. of the C. slaves D. standard

[填空题]Western companies had thought the cheap labor market from Asian countries would______.

[单项选择]There is an abundant supply of cheap labor in this country（　）.
A. a steady
B. a plentiful
C. an extra
D. a stable

[填空题]Proper Physical Labor

[单项选择] Labor Force The labor force is the part of a nation’’s population that works for pay or that is looking for a paying job. In 1800, the United States had about 2 million people in its labor force. Most of them worked on farms, most of whom were men. In 1993, about 130 million Americans were in the labor force. 96 million workers were found in large cities, 46 percent of whom were women. New Kinds of Jobs In the twentieth century, the U. S. labor force has undergone many changes. One of the most significant of these changes is in the decline in the number of blue collar jobs and the rise in the number of white-collar jobs. A blue-collar job involves manual or outdoor labor. Blue-collar workers include factory assemblers and welders; carpenters, plumbers(水暖工), mechanics, and painters; construction workers, and truck drivers. Although the number of blue-collar workers increased in the twentieth century, the future will see a declining need
A. Y
B. N
C. NG

[单项选择]

Just as world oil scarcity is already causing international conflicts, so will the scarcity of water reach a point where wars will break out. The statistics on water are already scary. Already well over 1 billion people suffer from water shortages and 30 countries get more than a third of their water from outside their borders-an obvious source of disputes and instability especially as the climate changes. The whole of the sub-Saharan Africa, most of South Asia and western South America are most at risk. The reason: the rapid melting of glaciers due to global warming.
At the meeting of the coalition of 27 International charities last month, Gareth Thomas, minister of International Development of the British government, wrote to prime minister Gordon Brown demanding action to ensure fresh water to 1.1 billion people with poor supplies. "If we do not act now, the reality is that water supplies may become the subject of international conflict in the years ahead. We need
A. sanitation crisis
B. international conflict
C. global warming
D. over-urbanization