The U. S. Bureau has estimated that the population of the United States could approach 300 million in 2000 and will be 400 million in 2020. And the U. S. Department of Commerce estimates that the average U.S. per capita income will increase from ＄3400 in 1969 to the equivalent of＄8300(assuming a 1967 price level) in the year 2000,2.5 times as much as that of 1969.
According to government statistics, in the United States, there are over 110 million cars and "more people" means "more cars". By the end of twenties of next century, the population of the United States will have doubled that of today and the number of automobiles will be doubled as well. And in twenty-year’s time the per capita income will also be 2.5 times higher than it is. If this increase income is spent on more and larger automobiles, larger houses, and increased consumption of other material goods, the results could cause catastrophic resource exhaustion, and pollution. Take the increase of the consumption of oil for instance. The consumption is so huge that the reserves might last only a decade or two if not supplemented by imports.
Ten years ago it appeared that nuclear power would solve the anticipated energy crisis. Although supplies of uranium fuel were known to be limited and might become exhausted in half a century, the nuclear power plant has for a long time been a favorite project. But work on it has met with grave problems. The fear of possible atomic explosion and the problem of disposing of polluting by-product waste have slowed down the construction of further nuclear plants. Eventually atomic technology may be able to control these problems, but at present there seems to be little agreement among atomic scientists about when this can be achieved.
Which of the trend is true

A:The population will increase, but the income will decrease. B:The population will decrease, but the income will increase. C:Both will increase. D:Both will decrease.

The U. S. Bureau has estimated that the population of the United States could approach 300 million in 2000 and will be 400 million in 2020. And the U. S. Department of Commerce estimates that the average U.S. per capita income will increase from ＄3400 in 1969 to the equivalent of＄8300(assuming a 1967 price level) in the year 2000,2.5 times as much as that of 1969.
According to government statistics, in the United States, there are over 110 million cars and "more people" means "more cars". By the end of twenties of next century, the population of the United States will have doubled that of today and the number of automobiles will be doubled as well. And in twenty-year’s time the per capita income will also be 2.5 times higher than it is. If this increase income is spent on more and larger automobiles, larger houses, and increased consumption of other material goods, the results could cause catastrophic resource exhaustion, and pollution. Take the increase of the consumption of oil for instance. The consumption is so huge that the reserves might last only a decade or two if not supplemented by imports.
Ten years ago it appeared that nuclear power would solve the anticipated energy crisis. Although supplies of uranium fuel were known to be limited and might become exhausted in half a century, the nuclear power plant has for a long time been a favorite project. But work on it has met with grave problems. The fear of possible atomic explosion and the problem of disposing of polluting by-product waste have slowed down the construction of further nuclear plants. Eventually atomic technology may be able to control these problems, but at present there seems to be little agreement among atomic scientists about when this can be achieved.
The central concern of the writer is ______.

A:the increase of cars B:the increase of population C:the expansion of nuclear power D:the possible environmental pollution

Text 4

A:The population will increase, but the income will decrease. B:The population will decrease, but the income will increase. C:Both will increase. D:Both will decrease.

Text 4

A:the increase of cars B:the increase of population C:the expansion of nuclear power D:the possible environmental pollution

The cost is going up for just about everything, and college tuition is no exception. According to a nation- wide survey (21) by the College Board’s Scholarship Service, (22) at most American universities will be (23) of 9 percent higher this year over last.
The biggest increase will occur at private colleges. Public colleges, heavily subsidized by rax funds, will also (24) their tuition, but the increase will be a few percentage points (25) than their privately sponsored neighbors.
As a follow-up, the United Press international did their own study (26) Massachussetts Institute of Technology. At M. I. T. advisors recommended that students have $ 8,900 (27) for one year’s expenses, including $ 5,300 for tuition, $ 2,685 for room and (28) , $ 630 for personal expenses, and $ 285 for books and supplies. Ten years ago the tuition was only $ 2,150. To (29) that another way, the cost has climbed 150 percent in the last (30) .

A:decrease B:reduce C:lower D:increase

The cost is going (21) for just about everything, and college tuition is no exception. According to a nationwide survey (22) by the College Board’s Scholarship Service, (23) at most American universities will be (24) of 9 percent higher this year over last.
The biggest increase will occur at private colleges. Public colleges, heavily subsidized by tax funds, will also (25) their tuition, but the increase will be a few percentage points (26) than their privately sponsored neighbors.
(27) a follow-up, the United Press international did their own study (28) Massachus-setts Institute of Technology. At M. I. T. advisors recommended (29) students have $ 8,900 (30) for one year’s expenses, including $ 5,300 (31) tuition, $ 2,685 for room and (32) , $ 630 for personal expenses, and $ 285 for books and supplies. Ten years ago the tuition (33) only $ 2,150. To (34) that another way, the cost has climbed 150 percent in the last (35) .

A:decrease B:reduce C:lower D:increase

Directions: For each blank in the following passage, there are four choices given below and marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on ANSWER SHEET I.

A:decrease B:reduce C:lower D:increase

In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three year（1）. According to the report, the picture of the earth in the year 2010 is not a （2） one. The world will be more（3）because the population will continue to grow. The population could be（4）6300 million, almost 2'150 million more than in 1985. More people would move into cities, especially cities in（5）countries. Cities like Cairo and Jakarta probably would（6）have 15 million by then. Food production will（7）, but not enough to feed all the people. Farmers will grow 90% more food than they did in 1985,（8）most of the increase would be in countries that（9）produce enough food for their people. Little increase is（10）in South Asia, Africa and the Middle East. Poor farming ways are （11）large areas of crop land, changing farms into deserts. More farmland is（12）as cities become larger and more houses are built. （13）will get worse as industrial countries burn more coal and oil. Many of the world's （14）could disappear as more and more trees are cut down. Energy will continue to be a serious problem. The experts say their picture of the earth for the year 2010（15）. They only carried out the situation that（16）today. By changing the situation, by（17）the problems, the picture can be changed. There is（18）time for the nations of the world to work（19）a plan of action. But they warned that（20） too long to make decisions would greatly reduce the chances of success.

A:insist B:reduce C:increase D:continue

In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three year（1）. According to the report, the picture of the earth in the year 2010 is not a （2）one. The world will be more（3）because the population will continue to grow. The population could be（4）6300 million, almost 2150 million more than in 1985. More people would move into cities, especially cities in（5）countries. Cities like Cairo and Jakarta probably would（6）have 15 million by then. Food production will（7）, but not enough to feed all the people. Farmers will grow 90% more food than they did in 1985,（8）most of the increase would be in countries that（9）produce enough food for their people. Little increase is（10）in South Asia, Africa and the Middle East. Poor farming ways are（11）large areas of crop land, changing farms into deserts. More farmland is（12）as cities become larger and more houses are built.（13）will get worse as industrial countries burn more coal and oil. Many of the world's（14）could disappear as more and more trees are cut down. Energy will continue to be a serious problem. The experts say their picture of the earth for the year 2010（15）. They only carried out the situation that（16）today. By changing the situation, by（17）the problems, the picture can be changed. There is（18） time for the nations of the world to work（19）a plan of action. But they warned that（20） too long to make decisions would greatly reduce the chances of success.

A:. insist B:reduce C:increase D:continue