3．In the past 15years，Chad Pregracke has helped pull more than 67，000tires from the Mississippi River and other waterways across the United States．
But that's just scratching the surface．He's also helped retrieve 218washing machines，19tractors，12hot tubs，four pianos and almost 1，000refrigerators．
For Pregracke，removing this debris-pieces of wood，metal，brick，etc．-has become his life's work．Sometimes called"The Rivers'Garbageman"，he lives on a barge （駁船） about nine months out of the year with members of his 12-person crew．Together，they organize community cleanups along rivers across the country．
It's a dirty job，but Pregracke took it on because he realized that no one was doing it．It began as a solo （獨(dú)自的） effort，and over the years his energy and enthusiasm have helped it grow．To date，about 70，000volunteers have joined him，helping collect more than 7million pounds of debris through his nonprofit．
Pregracke grew up in East Moline，Illinois，where the Mississippi River was in his backyard．As a teenager，he worked as a commercial shell diver and began to notice the heaps of debris in the waterway-one that supplies drinking water to 18million people in more than 50U．S．cities．
"I saw thousands of barrels，thousands of tires，cars，trucks and tops of school buses…I got sick of seeing it and just wanted to do something about it，"he said．
Pregracke got a small fund from a company in 1997and spent that summer cleaning a 35-mile stretch of the river by himself．He would transport the trash by boat and sort it on his parents'lawn to be recycled．By year's end，he had single-handedly pulled around 45，000pounds of trash out of the river．
His nonprofit now has a fleet of boats．And while he has resources and know-how，he depends on each community he visits to supply the manpower needed to get the job done．
At the cleanup sites，Pregracke's humor creates cheerful atmosphere-something he knows is necessary for the work that they do．His team uses motivational speeches and music to get the volunteers amped up （陶醉）．
"We do everything in our power to get people excited about it，"Pregracke said．"We want people to leave feeling good about what they did so they'll contribute more here．"
Pregracke views his work as a different kind of service to the country．
"A lot of people call me a conservationist or an environmentalist，but the thing is I'm no different than anybody else，"he said．
Ultimately，Pregracke believes his story is proof that anyone can make a difference：
"If I had one thing to say，it wouldn't even be about rivers necessarily．It would be about finding a cause that's dear to you and taking action．"
67．What initially caused Pregracke to clean up the waterway？D
A．People's ignorance of the debris at the bottom of the river．
B．His ambition to become famous throughout the country．
C．Safety problems of sailing boats along the Mississippi．
D．His bad feeling about the source of the drinking water．
68．What can we learn about Pregracke from the passage？A
A．He maintains his cause with the help from society．
B．He aims at recycling what have been found in rivers．
C．He makes a living by cleaning waterways all over the country．
D．He thinks of himself as a conservationist or environmentalist．
69．Why does Pregracke try to create a cheerful atmosphere at the cleanup sites？B
A．To make the heavy job lighter．
B．To attract the volunteers back．
C．To increase efficiency in the job．
D．To get the participants'motivated．
70．Through his efforts，Pregracke wants to displayB．
A．his love for waterways
B．his value to society
C．his attitude to environment
D．his capacity for working．
分析 本文屬于記敘文閱讀，作者通過(guò)這篇文章向我們介紹了Chad Pregracke，他在青少年時(shí)期就注意到供應(yīng)很多人飲用水的水源中出現(xiàn)了大量垃圾，這使他感到很惡心，因此他在長(zhǎng)大后征集船員來(lái)清理河流中的各種垃圾，作者通過(guò)這篇文章告訴我們要盡自己的能力對(duì)國(guó)家做出更多的貢獻(xiàn)．
解答 67．D 細(xì)節(jié)理解題，根據(jù)第五、六段As a teenager，he worked as a commercial shell diver and began to notice the heaps of debris in the waterway-one that supplies drinking water to 18million people in more than 50U．S．cities．"I saw thousands of barrels，thousands of tires，cars，trucks and tops of school buses…I got sick of seeing it and just wanted to do something about it，"he said．可知，他在青少年時(shí)期注意到供應(yīng)很多人飲用水的水源中出現(xiàn)了大量垃圾，這使他感到很惡心，故選D．
68．A 細(xì)節(jié)理解題，根據(jù)第七段Pregracke got a small fund from a company in 1997and spent that summer cleaning a 35-mile stretch of the river by himself．以及下文中提到的志愿者可知他在社會(huì)的幫助下維持他的事業(yè)，故選A．
69．B 細(xì)節(jié)理解題，根據(jù)第九段"We do everything in our power to get people excited about it，"Pregracke said．"We want people to leave feeling good about what they did so they'll contribute more here．"可知他這么做是因?yàn)樗缹?duì)于他們所做的工作來(lái)說(shuō)，令人愉快的氛圍是很必要的，這樣可以使志愿者喜歡這種氛圍，從而愿意參與到他們的工作中來(lái)，故選B．
70．B 推理判斷題，聯(lián)系最后四段的內(nèi)容可知Pregracke只是把自己的工作看成是對(duì)國(guó)家的不同形式的服務(wù)，他只是找到了一件值得他去做的事，并采取了行動(dòng)．故可推斷出他想展示他對(duì)社會(huì)的價(jià)值，故選B．
點(diǎn)評(píng) 考查學(xué)生的細(xì)節(jié)理解和推理判斷能力．做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確選擇．在做推理判斷題時(shí)不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．
