填空题

The lack of clean drinking water is a major problem worldwide. The World Health Organization says more than one billion people live in areas where (47) water resources are not available. The problem is especially serious in Asia and the Pacific. A United Nations report says water (48) in that area is the second lowest in the world,after Africa.
Nearly seven hundred thousand people in Asia and the Pacific lack safe drinking water. Agriculture uses about eighty percent of the water in the Asia-Pacific area. There has also been a(n) (49) in water used for (50)
The lack of clean drinking water around the world forces millions of people to drink (51) water.This leads to an increase in diseases like diarrhea (痢疾), the second (52) cause of death in children under five.
The Millennium Development Goals for 2015 call for a fifty percent decrease in the number of people without safe drinking water and basic sanitation (卫生设施).
Scientists,governments and aid organizations around the world are increasing their (53) to meet the goal. The American and South Korean researchers are (54) a new technology for turning sea water into drinking water. The new technology is called ion concentration polarization (离子浓度极化). The process uses electricity to help (55) electrically charged salt particles from water to make it drinkable. So far the method (56) only small amounts of water. But the researchers say it may someday be available as a personal water purification product.
A. unsafe I) makes
B. find J) industry
C. farming K) purifies
D. availability L) efforts
E. leading M) maintaining
F. renewable N) increase
G. separate O) investigating
H) drinkable