The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.
The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.
47. The way to stop wasting water is to ________ .
A. do experiments with water
B. purify the used water and reuse it
C. use fresh water once again
D. make use of seawater
48. The passage tells us how to reuse the used water. Which is the right order of the process?
a. to have the used water filtered b. to put chemical in it
c. to pipe it to the user
d. to pipe the used water to be purified in a factory.
A. dabc B. bcda C. bdca D. dcba
49. There wouldn't be enough water for us if we didn't ________ .
A. turn to the ocean for more water
B. reuse used water and make use of seawater
C. make fresh water from the seawater
D. take steps to reuse all water on earth
50. The word "it" underlined in the last paragraph refers to ________ .
A. the process of collecting salt from the ocean
B. the process of getting rid of the salt in seawater
C. purified water
D. seawater

The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.

The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.

47. The way to stop wasting water is to ________ .

A. do experiments with water

B. purify the used water and reuse it

C. use fresh water once again

D. make use of seawater

48. The passage tells us how to reuse the used water. Which is the right order of the process?

a. to have the used water filtered b. to put chemical in it

c. to pipe it to the user

d. to pipe the used water to be purified in a factory.

A. dabc B. bcda C. bdca D. dcba

49. There wouldn't be enough water for us if we didn't ________ .

A. turn to the ocean for more water

B. reuse used water and make use of seawater

C. make fresh water from the seawater

D. take steps to reuse all water on earth

50. The word "it" underlined in the last paragraph refers to ________ .

A. the process of collecting salt from the ocean

B. the process of getting rid of the salt in seawater

C. purified water

D. seawater

The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.

The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.

47. The way to stop wasting water is to ________ .

A. do experiments with water

B. purify the used water and reuse it

C. use fresh water once again

D. make use of seawater

48. The passage tells us how to reuse the used water. Which is the right order of the process?

a. to have the used water filtered b. to put chemical in it

c. to pipe it to the user

d. to pipe the used water to be purified in a factory.

A. dabc B. bcda C. bdca D. dcba

49. There wouldn't be enough water for us if we didn't ________ .

A. turn to the ocean for more water

B. reuse used water and make use of seawater

C. make fresh water from the seawater

D. take steps to reuse all water on earth

50. The word "it" underlined in the last paragraph refers to ________ .

A. the process of collecting salt from the ocean

B. the process of getting rid of the salt in seawater

C. purified water

D. seawater

The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.
The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.

1. 1.

   The way to stop wasting water is to ________ .

   1. A.
      do experiments with water
   2. B.
      purify the used water and reuse it
   3. C.
      use fresh water once again
   4. D.
      make use of seawater
2. 2.

   The passage tells us how to reuse the used water. Which is the right order of the process?
   a. to have the used water filtered b. to put chemical in it
   c. to pipe it to the user
   d. to pipe the used water to be purified in a factory.

   1. A.
      dabc
   2. B.
      bcda
   3. C.
      bdca
   4. D.
      dcba
3. 3.

   There wouldn't be enough water for us if we didn't ________ .

   1. A.
      turn to the ocean for more water
   2. B.
      reuse used water and make use of seawater
   3. C.
      make fresh water from the seawater
   4. D.
      take steps to reuse all water on earth
4. 4.

   The word "it" underlined in the last paragraph refers to ________ .

   1. A.
      the process of collecting salt from the ocean
   2. B.
      the process of getting rid of the salt in seawater
   3. C.
      purified water
   4. D.
      seawater

    Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities. To supply for the needs of the people    1    further pollution by industry.    2__　　 the rapid increase    3   human pollution continues at the present rate, there may be    4    greater harm. Some scientists speak of the increase in the number of people    5    “population pollution.”

    About 2,000 years   6    , the world population was probably about 250 million. It   7    a billion in 1850. By 1930 the population 　　8  two billion. It is now over three and a half billion. It    9    to double by the year 2008. If the population continues to grow at   10　　  rate, there    11    twenty-five billion people in the world a hundred years 　　12     now!

    Man has been using the earth’s resources    13    rapidly over the years. Some of them are almost   14   . Now many people believe that man’s greatest problem is    15    the growth of his own population.  The materials in the world will not support the human    16   , in time to come, if the    17    rate of increase continues. Already there is overcrowding in the cities and    18   in some countries. Can man’s increase rate ____19____? Many people believe that human survival in the future   20   the answer to this question.

1.　　   A. causing　　　　    B. leads to　　　　　　 C. resulted 　　　　  D. brings out

2.　　   A. Whether　　　　   B. If　　　　　　　　　　  C. Unless　　　　　　  D. And

3.　　   A. in　　　　　　　　　　 B. on　　　　　　　　　　 C. at　　　　　　　　    D. by

4.　　   A. many　　　　　　   B. much　　　　　　    C .more　　　　　　    D. most

5.　　   A. like　　　　　　　　  B. to　　　　　　　　　　 C. as　　　　　　　　    D. for

6.　　   A. passed　　　　　　  B. past　　　　　　　　  C. before　　　　　　  D. ago

7.　　   A. reached　　　　    B. got　　　　　　　　    C. arrived　　　　　　 D. went

8.　　   A. is　　　　    B. are　　　　    C. was    　　   D. were

9.　　   A. is said　　　　　　  B. is expected　　    C. is planned　　　　 D. is arranged

10.   A. same　　　　　　    B. a same　　　　　　  C. the same　　　　  D. one same

11.   A. will have　　　　   B. will live　　　　　　 C. would be　　　　  D. might get

12.   A. by　　　　　　　　    B. from　　　　　　　　 C. at　　　　　　　　    D. to

13.   A. more and more　　　　　　　　　　　　　　  B. more or less

C. little by little　　　　　　　　　　　　　　　　   D. sooner or later

14.   A. useful　　　　　　   B. harmful　　　　　　 C. lost　　　　　　　　  D. going

15.   A. how to enlarge　　　　　　　　　　　　　　  B. how to raise

C. how to control　　　　　　　　　　　　　　   D. how to make

16.   A. population　　　　 B. growth　　　　　　  C. survival　　　　    D. needs

17.   A. present　　　　　　 B. yesterday　　　　   C. today　　　　　　   D. past

18.   A. hungry　　　　　　 B. hunger　　　　　　  C. hungrily　　　　   D. hungers

19.   A. raise　　　　　　　　 B. continue　　　　    C. over　　　　　　　　 D. up

20.   A. goes on　　　　    B. pushes on　　　　  C. puts on　　　　    D. depends on