完形填空（共20小题；每小题1分，满分20分）
阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳选项 。
Water and its importance to human life were the centre of the world’s attention last week. March 22 was World Water Day and     36     the theme “Water for Life”.
There are more than one billion people in the world who live without     37     drinking water. The United Nations      38     to cut this number in half by 2015.
Solving such a big problem seems like a(n)     39     challenge. But everyone,     40    teenagers, can do something to help. A teenage girl in the US has set an example to the     41   of her age around the world.
Rene Haggerty, 13, was awarded the 2004 Gloria Barron Prize for her work—     42    discarded(废弃的) batteries（电池）which pollute water.
In 2003, Haggerty went on a field trip to the Great Lakes Science Centre in Ohio. There she saw an exhibit about how     43    in old batteries harm the water of Lake Erie.
Haggerty learnt that     44      the batteries was an easy solution. “I think everybody can do it, because everyone     45     batteries, and it can make a big difference.” With these words, she began to     46     awareness in her area.
She     47      her county government and school board. She got permission to start a recycling programme in schools    48    the public library, hospital, and churches. With help from her family, friends and local waste-management    49    , she gathered containers, arranged transportation, and made a(n)     50     video.
Over the past two years, she collected four tons of batteries and drew the attention of officials, who were in charge of a battery recycling programme but had made     51    progress.
When asked     52     she feels like a hero, Haggerty is quite ____53    . “Not really. Well, maybe for the fish I saved!”
Every year the Gloria Barron Prize     54   young Americans aged 8 to 18 who have shown leadership and courage in     55     the public and the planet. Each year ten winners receive US $ 2,000 each, to help with their education costs or their public service work.

A．had B．gave C．wrote D．discussed

A．enough B．safe C．much D．polluted

A．asks B．orders C．hopes D．ensures

A．good B．strong C．important D．unreal

A．especially B．sometimes C．even D．seldom

A．boys B．others C．students D．grown-ups

A．collecting B．selling C．buying D．using

A．things B．chemicals C．water D．air

A．making B．recycling C．reducing D．handling

A．uses B．has C．throws D．needs

A．tell B．increase C．spread D．inform

A．talked to B．listened to C．heard from D．thought about

A．and B．beside C．as well as D．as good as

A．officials B．workers C．clerks D．experts

A．industrial B．agricultural C．scientific D．educational

A．much B．no C．some D．little

A．if B．how C．when D．why

A．proud B．glad C．modest D．worried

A．praises B．helps C．supports D．honors

A．awarding B．saving C．serving D．favoring