第1题:
此题为判断题(对,错)。
第2题:
These natural resources will be______sooner or later if the present rate of exploitation continues.
A.depleted
B.deployed
C.inclined
D.mingled
第3题:
完形填空Many of the world’s pollution problems have been caused by the crowding of large groups of people into cities.Satisfying the 21 of the people leads to further polluting by industry.If the rapid increase in human population 22 at the present rate (比率), there may be much greater harm.Some scientists speak of the 23 in number of people as “Population Pollution”.
About 2000 years ago, the world 24 was probably about 250 million.It reached a billion in 1850.By 1930 the population was two billion.It is 25 three and a half billion.It is expected to double by the year 2000.If the population continues to grow at the same 26 , there would be 25 billion people in the world a hundred years from now.
Man has been using the earth’s 27 more and more rapidly over the years.Some of them are almost gone.Now many people believe that man’s greatest 28 is how to control the growth of this population.The materials in the world will not support the human population in time to come if the present rate of increase continues.29 there is over crowding in the cities and hunger in some countries.Can man’s rate of increase continue?
Many people believe that human survival (幸存者) in the future 30 on the answer to the question.
21.A.needs
B.supplies
C.service
D.supports
22.A.stops
B.continues
C.slows down
D.adds to
23.A.increase
B.reduce
C.country
D.improvement
24.A.people
B.situation
C.population
D.land
25.A.now
B.in the past
C.in the future
D.then
26.A.place
B.time
C.rate
D.result
27.A coal
B.oil
C.mines
D.resources
28.A.problem
B.power
C.plan
D.idea
29.A.Already
B.Yet
C.Still
D.Often
30.A.feeds
B.lives
C.keeps
D.depends
第4题:
第5题:
第6题:
Which of the following statements is NOT true?
A) World population is increasing at a rate of 150 per minute.
B) Lower death rates also contribute to world population growth.
C) The population of Columbia has been doubling every year for 21 years.
D) The United States is usually doubling its population about every 87 years.
第7题:
By the middle of the 21st century,the vast majority of the world‘s population will be living in cities _______ in the country. A. other than B. more than C. better than D. rather than
第8题:
Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()
第9题:
第10题: