英语阅读理解.求解More than one billion people around the world do no

英语阅读理解.求解
More than one billion people around the world do not have clean drinking water. Their water supplies are unsafe because of natural or man-made pollution, such as industrial chemicals or human and animal wastes. Also water-related diseases (与水有关的病菌) kill millions of people each year, mostly children.
Two years ago the United States National Academy of Science launched the "Safe Drinking Water Is Essential" site. It was set up to provide high-quality scientific information about improving the safety of drinking water supplies. The information is provided in five languages: English, French, Spanish, Chinese and Japanese.
Many organizations will share information about the web resource (网络资源) with policy (政策) makers in their countries. The information will help users learn about the causes of unsafe drinking water and technologies that can improve water quality.
Peter Glick is a member of the scientific committee (科学委员会) that developed the website. He says now many people can't get clean drinking water. But the problem can be solved. Education is important, and the hope is that this new Internet tool can be part of the solution.
51. The water supplies are not safe because __________ .
A. people make the water clean B. there is natural or man-made pollution
C. animal bodies are thrown into water D. there are no water-related diseases
52. What does the underlined word "launched" mean in the second paragraph?
A. 取消. B. 改善. C. 创办. D. 改变.
53. The information is provided in _________ .
A. English, French, Indian, Chinese and Japanese
B. English, French, Spanish, Chinese and Japanese
C. English, French, Indian, Chinese and Russian
D. English, French, Indian, Chinese and Australian
54. Many organizations will ________ .
A. provide money for poor people B. only help people to find clean water
C. supply the poor with clean water D. share information with policy makers
55. According to Peter Glick, human beings _________________ .
A. can solve the water problem B. should get information about Internet
C. learn how to speak English D. need to learn more about the world

51.B 由第一段第二句前半部分得知.Their water supplies are unsafe because of natural or man-made pollution
52.C 创办关于“Safe Drinking Water Is Essential”的活动
53.B 由第二段的最后一句得知.The information is provided in five languages: English, French, Spanish, Chinese and Japanese.
54.D 由第三段第一句得知.Many organizations will share information about the web resource (网络资源) with policy (政策) makers in their countries.
55.A 由第四段第三句得知.But the problem can be solved
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