Water and itsimportance to human life were the center of the world's attention last week.March 22 was World Water Day and______(51)the theme"Water for Life”.

There are more thanone billion people in the world who live without______(52)drinking water. TheUnited Nations______(53)to cut this number in half by 2015.

Solving such a bigproblem seems like a(n)______(54)challenge.But everyone,even teenagers,can dosomething to help.A teenage girl in the US has set an example to

the______(55)of herage around the world.

Rene Haggerty,13,wasawarded the 2004 Gloria Barron Prize for her work—_______(56) discarded（废弃的）batteries（电池）which pollute water.

In 2003,Haggertywent on a field trip to the Great Lakes Science Centre in Ohio.There she saw anexhibit about how______(57)in old batteries harm the water of Lake Erie.

Haggerty learntthat______(58)the batteries was an easy solution."I think everybody can doit,because everyone uses batteries,and it can make a big difference."Withthese

words,she beganto.______(59)awareness in her area.

She______(60)hercounty government and school board. She got permission to start a re-cyclingprogram in schools,hospital,churches______(61)the public library. With the

help from herfamily,friends and local waste-management______(62),she gatheredcontainers,arranged transportation,and made an educational video.

Over the past twoyears,she collected four tons of batteries and drew the attention of officials,who were in charge of a battery recycling program but had made______(63)

progress.

Whenasked______(64)she feels like a hero,Haggerty is quite modest."Not really.Well,maybe for the fish I saved!"

Every year theGloria Barron Prize is______(65)to young Americans aged 8 to 1 8 who have shownleadership and courage in serving the public and the planet. Each year ten

winners receive USMYM 2,000 each,to help with their education costs or their public service work._________(62)

A.officials

B.workers

C.clerks

D.experts