After a month of feeling upset，Thomas decided he'd better find a way to fight back．He left Canton，Michigan for New York，got a job waiting tables，nicknamed himself the Diabetic Rockstar，and created diabeticrockstar．com，a free online community for diabetics and their loved ones﹣a place where over 1，100people share personal stories，information，and resources．

Jason Swencki's son，Kody，was diagnosed with diabetes at six．Father and son visit the online children's forums（论坛） together most evenings．"Kody gets so excited，writing to kids from all over，"says Swencki，one of the site's volunteers．"They know what he's going through，so he doesn't feel alone．"

Kody is anything but alone：Diabetes is now the seventh leading cause of death in the United States，with 24million diagnosed cases．And more people are being diagnosed at younger ages．

These days，Thomas's main focus is his charity（慈善机构），Fight It，which provides medicines and supplies to people﹣225to date﹣who can't afford a diabetic's huge expenses．Fight﹣it．org has raised about $23，000﹣in products and in cash．In May，Thomas will hold the first annual Diabetic Rockstar Festival in the Caribbean．

Even with a staff of 22volunteers，Thomas often devotes up to 50hours a week to his cause，while still doing his full﹣time job waiting tables．"Of the diabetes charities out there，most are putting money into finding a cure，"says Bentley Gubar，one of Rockstar's original members．"But Christopher is the only person I know saying people need help now．"

56．Which of the following is true of Christopher Thomas？

The total amount of packaging increased by 12% between 1999and 2005．It now makes up a third of a typical household's waste in the UK．In many supermarkets nowadays food items are packaged twice with plastic and cardboard．

Too much packaging is doing serious damage to the environment．The UK，for example，is running out of areas for burying this unnecessary waste．If such packaging is burnt，it gives off greenhouse gases which go on to cause the greenhouse effect．Recycling helps，but the process itself uses energy．The solution is not to produce such items in the first place．Food waste is a serious problem，too．Too many supermarkets encourage customers to buy more than they need．However，a few of them are coming round to the idea that this cannot continue，encouraging customers to reuse their plastic bags，for example．

But this is not just about supermarkets．It is about all of us．We have learned to associate packaging with quality．We have learned to think that something unpackaged is of poor quality．This is especially true of food．But is also applies to a wide range of consumer products，which often have far more packaging than necessary．

There are signs of hope．As more of us recycle，we are beginning to realise just how much unnecessary material are collecting．We need to face the wastefulness of our consumer culture，but we have a mountain to climb．

61．What does the underlined phrase"over﹣consumption"refer to？

"I'm delighted and amazed at how much media recognition that the Pulitzer brings，as compared to even the National Book Critics Award，which I was also surprised and delighted to win，"said Armantrout．

"For a long time，my writing has been just below the media radar，and to have this kind of attention，suddenly，with my 10th book，is really surprising．"

Armantrout，a native Californian，received her bachelor's degree at UC Berkeley，where she studied with noted poet Denise Levertov，and her master's in creative writing from San Francisco State University．She is a founding member of Language Poets，a group in American poetry that analyzes the way language is used and raises questions to make the reader think．

In March，she won the National Book Critics Circle Award for"Versed．"

"This book has gotten more attention，"Armantrout said，"but I don't feel as if it's better．"

The first half of"Versed"focuses on the dark forces taking hold of the United States as it fought the war against Iraq．The second half looks at the dark forces casting a shadow over her own life after Armantrout was diagnosed with cancer in 2006．

Armantrout was shocked to learn she had won the Pulitzer but many of her colleagues were not．"Rae Armantrout is a unique voice in American poetry，"said Seth Lerer，head of Arts and Humanities at UCSD．

"Versed"，published by the Wesleyan University Press，did appear in a larger printing than her earlier works，which is about 2，700copies．The new edition is scheduled to appear in May．

66．According to Rae Armantrout，

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"To provide enough power，we need certain methods with energy density（密度），"said Jae kwon，assistant professor of electrical and computer engineering at MU．"The radioisotope（放射性同位素） battery can provide power density that is much higher than chemical batteries．"

Kwon and his research team have been working on building a small nuclear battery，resently the size and thickness of a penny，intended to power various micro/nanoelectromechanical systems（M/NEWS）．Although nuclear batteries can cause concerns，Kwon said they are safe．

"People hear the word‘nuclear'and think of something very dangerous，"he said．"However，nuclear power sources have already been safely powering a variety of devices，such as pace﹣makers，space satellites and underwater systems．"

His new idea is not only in the battery's size，but also in its semiconductor（半导体）．Kwon's battery uses a liquid semiconductor rather than a solid semiconductor．

"The key part of using a radioactive battery is that when you harvest the energy，part of the radiation energy can damage the lattice structure（晶格结构） of the solid semiconductor，"Kwon said．"By using a liquid semiconductor，we believe we can minimize that problem．"

Together with J．David Robertson，chemistry professor and associate director of the MU Research Reactor，Kwon is working to build and test the battery．In the future，they hope to increase the battery's power，shrink its size and try with various other materials．Kwon said that the battery could be thinner than the thickness of human hair．

71．Which of the following is true of Jae Kwon？