[单项选择]Over the past ten years, natural gas production has remained steady, but ______ has risen steadily.
A. consumption
B. dissipation
C. disposal
D. expenditure

[单项选择]Over the past ten years, natural gas production has remained steady, but ______ has risen steadily.
A. consumption
B. dissipation
C. disposal
D. expenditure

[单项选择]

Passage Four
Increasingly, over the past ten years, people -- especially young people have become aware of the need to change their eating habits, because much of the food they eat, particularly processed food, is not good for the health. Consequently, there has been a growing interest in natural foods: foods which do not contain chemical additives and which have not been affected by chemical fertilizers, widely used in farming today.
Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount-- but not the quality -- of foods grown in commercial farming areas.
Natural foods also include animals which have be
A. foods containing large quantities of refined flour and vegetables
B. foods with fibers removed
C. foods with more fibers
D. food with additives

[单项选择]During the past ten years there have been dramatic changes in the international situation.
A. permanent
B. powerful
C. striking
D. practical

[单项选择]In the past ten years skyscrapers have developed ______ in Chicago and New York City.
A. homogeneously
B. simultaneously
C. spontaneously
D. harmoniously

[单项选择]The temperature of the world in the past ten years has dropped a little ______.
A. because wind and rain changed the weather
B. the drop in the temperature would have effects on wind and rain
C. because wind and rain did not change the weather
D. the drop in the temperature would not have effects on wind and rain

[单项选择]During the past ten years there have been {{U}}dramatic{{/U}} changes in the international situation.
A. permanent
B. powerful
C. striking
D. practical