12.A new study,done by a private American organization called Population Action International,warns that about thirty percent of the world's people may not have enough water by the year 2025.It also says over 335million people in 28countries lack enough water now,most of which are in Africa or the Middle East.
PAI researcher Robert Engelman says by the year 2025,about 3,000million people may lack water.At least 18more countries are expected to have severe water problems.The demand for water keeps increasing.Yet the amount of water on Earth stays the same.
Mr.Engelman says the population in countries lacking water is growing faster than in other parts of the world.He says population growth in these countries will continue to increase.
The report says lack of water may result in several problems.It may increase health problems.Lack of water often means drinking water is not safe.Mr.Engelman says there are problems all over the world because of diseases,such as cholera,which are carried in water.Lack of water may also result in more international conflicts.Countries may have to compete for water in the future.Some countries now get 60% of their fresh water from other countries.This is true of Egypt,the Netherlands,Cambodia,Syria,Sudan,and Iraq.
The PAI study gives several solutions(解決辦法)to the water problem.One way,it says,is to find ways to use water for more than one purpose.Another way is to teach people not to waste water.A third way is to use less water for agriculture.The report also says long-term solutions to the water problem must include controlling population growth.
59.According to the report,which is the reason for lack of water?C
A.International conflicts.
B.Serious water pollution.
C.Increasing demand for water.
D.Using water for more than one purpose.
60.Which of the following statements is true?B
A.The amount of water on earth is becoming less.
B.Lack of water may cause some health problems such as cholera.
C.28countries in Africa or the Middle East lack enough water now.
D.Egypt,China,and Iraq get 60% of the fresh water from other countries.
61.How many ways to solve the water problem are mentioned in the passage?C
A.1. B.2. C.4. D.5.
62.We can know from the study done by PAI thatD.
A.the population will stop growing because of lack of water
B.a(chǎn)bout 3,000million people in the world lack water at present
C.lack of water may occur in fewer countries in Africa by 2025
D.we need to control population growth to solve the water problems.