第二节 完形填空(共20小题；每小题1分，满分20分)
Many
of the world’s pollution problems have been caused by the crowding of large
groups of people into cities. Supply for the __36__ of the people leads
to__37__ pollution by industry. If the __38__ increase in human population
__39__ at the present rate, there may be much greater harm. Some scientists
speak of the __40__ in number of people as “population pollution”.
About 2000 years ago, the
world__41__ was probably about 250 million. __42__ reached a billion in 1850.
By 1930 the population was two billion. It is __43__ three and a half billion.
It is __44__ to double by the year 2000. If the population continues to grow at
the same __45__, __46__ would be 25 billion people in the world a hundred years
from now.
Man has been using the
earth’s__47__ more and more rapidly over the years. Some of them are almost
__48__. Now many people believe that man’s greatest__49__ is how to control the
growth of his population. The __50__ in the world will not support the human
population, in time to come, if the __51__ rate of increase continues. __52__
there is overcrowding in the __53__ and hunger in some countries. Can man’s
rate of increase continue? Many people believe that human survival (幸存者) in the future__54__ on the answer
__55__ the question.
36. A. needs B. satisfies C. service D. lacks
37. A. farther B. less C.
further D. better
38. A. harmful B. small C.
slow D.
rapid
39. A. stops B.
continues C. slows down D. speeds up
40. A. increase B. reduce C.
quality D. quantity
41. A. people B. situation C. population D. land
42. A. They B. You C. We D.
It
43. A. now B. in the
past C. in the future D. then
44. A. hoped B. expected C. wished D. looked forward to
45. A. place B. time C. rate D.
result
46. A. it B.
there C.
they D.
that
47. A. coal B. oil C.
mines D. resources
48. A. missed B. rich C. gone D. enough
49. A. problem B.
power C. plan D. idea
50. A. food B.
electricity C. energy D. materials
51. A. past B.
present C. future D. slow
52. A. Already B. Yet C.
Still D.
Often
53. A. villages B. mountains C. cities D. farms
54. A. grows B.
lives C. keeps D. depends
55. A. in B.
of C.
to D.
with