大学英语阅读理解第一题Many of the world’s pollution problems have been

大学英语阅读理解
第一题Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities.Supply for the needs of the people leads to further pollution by industry.If the rapid increase in human population continues at the present rate,there may be much greater harm.Some scientists speak of the increase in numbers of people as“population pollution”.
About 2,000 years ago,the world population was probably about 250 million.It reached a billion in 1850.By 1930,the population was two billion.It was three and a half billion by 1980.It doubled by the year 2000.If the population continues to grow at the same rate,there would be 25 billion people in the world a hundred years from now!
Man has been using the earth’s resources more and more rapidly over the years.Some of them are almost gone.Now many people believe that man’s greatest problem is how to control the growth of his own population.The materials in the world will not support the human population,in time to come,if the present rate of increase continues.Already there is overcrowding in the cities and hunger in some countries.Can man’s rate of increase continue?Many people believe that human survival in the future depends on the answer to this question.
1.The world’s pollution problems would be less serious if
A.fewer people moved from countryside to the cities.
B.More people moved from countryside to the cities.
C.Industry developed less fast.
D.Many people moved to the cities without the fast development of industry.
2.The increasing move to the cities of the people is thought to be
A.city pollution B.population pollution
C.countryside pollution D.industry pollution
3.In 1850 the population in the world was
A.250 million B.1,000million
C.200 million D.2,000million
4.In the year 2000,the world population was
A.350 million B.25,000 million
C.4,000 million D.7,000 million
5.The most serious problem man is facing is thought to be
A.the using of the earth’s resources.
B.The control over the waste of the natural materials.
C.How to slow down the increase of population.
D.How to stop the birth of new babies.

1.A
2.B
3.B
4.D
5.C