Studies show that the world in 2010 will be more crowded，more polluted and less stable e

cologically(在生态方面)than the world we live in now.Visible ahead is serious stress involving population，resources and environment.Despite greater food output，people in the world will be poorer in many ways than they are today.For hundreds of millions of the extremely poor，the outlook for food and other necessities of life will be no better.For many it will be worse.While the economies of the developing countries are expected to grow at a faster rate than those of the industrialized nations，the total national product per head in most less developed countries remains low.The existing gap between the rich and poor nations will further widen.World food production is estimated to increase by 90 percent from 1970 to 2010.Most of that increase goes to the countries that already have relatively higher per-head food consumption(消费).Meanwhile，per-head consumption of food in the developing countries will scarcely improve or will actually fall far below the present inadequate level.What is worse is prices for food are expected to double.As a result，many less developed countries will have increasing difficulties meeting energy needs.For the one quarter of mankind that depends primarily on wood for fuel，the outlook is not hopeful.Regional water shortage will become more severe.In the 1970-2010 period population growth will require twice as much water as it does today in nearly half the world.Still greater increases would be needed to improve standards of living.Development of new water supplies will become more costly.

1. According to the passage，in 2010 while output of food will be greater，_____.

A. people will have sufficient food supplies

B. the world resources will become more than enough

C. in most developing countries people will have less food than they have today

D. the living standards of the world's population will improve greatly

2. According to the author，in 2010 for many poor people，_____.

A. things will get even worse

B. things will be a little better

C. it will be necessary for them to improve their housing

D. it will be impossible to obtain enough necessities of life

3. In the 1970-2010 period，the large proportion of global increase of food production goes _____.

A. to 90 percent

B. to developing countries

C. to any country in the world that needs it

D. to those countries that already have high per head consumption

4. How does the author predict the development of new water supplies in the future_____

A. Water shortage will occur in some regions only.

B. Development of new water supplies will be more expensive.

C. The less developed countries need more water than the developed ones.

D. The demand for water will double with the growing population.

5. Which of the following may best serve as the title of this passage_____

A. The Future Problems in the World.

B. Water and Air Pollution.

C. Water and Food Shortages.

D. Food Production and Consumption.