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　　Reading letters is the happiest moment for singer Cong Fei, who now has to stay in bed．These letters, in which they call him “Dad”, are from the children he has 　　1　　．

　　The 36-year-old singer has spent nearly all his 　　2　　 in paying the tuition fees of 178 children 　　3　　 the past 11 years．

　　He was diagnosed(诊断)with cancer in May, 2006．One of the 　　4　　 things he requested after being diagnosed was that friends and family 　　5　　 to fund the 100 students he has started to put through 　　6　　．

　　“　　7　　 they can't keep on studying, what they can expect is a(n)　　8　　 future．You must find 　　9　　 to let them continue their education,” Cong said．

　　Cong's first 　　10　　 began at a charity(慈善)performance for children in Southwest China's Chongqing in 1994．When donating all 2,400 yuan he had on him, Cong was 　　11　　 to learn that the money could help 20 children complete two years'education and realized how 　　12　　 the donation was to the children．

　　From then on, he 　　13　　 took part in more than 20 charity performances in poverty-stricken(非常贫穷的)areas in Guizhou, Hunan and Sichuan provinces．

“When the children saw Cong Fei, they were so 　　14　　 that they hugged him, calling him 　　15　　．At that 　　16　　, I could fully understand the 　　17　　 of my husband's devotion,” said his wife Xing Dan．

　　Extensive media reports on Cong's story have placed him 　　18　　 in the focus in the past two months．Li Hongzhong, Party secretary of Shenzhen, visited him in June and 　　19　　 him to fight the disease so that he could, as his name suggests, “　　20　　 again．”

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　　What separates me from everyone else? The difference is not what clothes I wear or the music I listen to, but what I feel 　　1　　．

　　Ever since I was young, I have loved professional wrestling．As I grew older, my friends 　　2　　 me for following what was called a “man’s soap opera”．　　3　　, I put my love for wrestling on the shelf．It was not until freshman year that I 　　4　　 I wasn’t being myself．

　　That year, I tried many new things and activities．In my town, football was the sport, so I decided to play football, 　　5　　 it might give me a head 　　6　　 in popularity．The team started with forty eight athletes．　　7　　, there were fourteen of us left．I stuck it out not because I liked it, but because I am not a quitter．That long season taught me a(n)　　8　　：I wasn’t a football player．More importantly, it taught me to be 　　9　　．

　　After that season, I 　　10　　 back to being a wrestling fan．I came across a well known saying：“Don’t Dream It．Be It．” When I read this, my friend Dan and I had the 　　11　　 idea．

　　“What if we build a wrestling ring?” we asked．The following weekend, we met at his house．We saw our 　　12　　 in a pile in his backyard．We worked from dawn to dusk to build our great project．Our hard work paid 　　13　　．We had a real ring．We decided to hold an “event”．We practiced for hours, trying to 　　14　　 every aspect(方面)of our wrestling ability．The date was May 24th．To our surprise, about one hundred friends and fans showed up to 　　15　　 us．It was the most important night of my life and a 　　16　　 success．Since that time, we have held five shows with as many as two hundred and fifty people training out．We 　　17　　 to live this dream．We accomplished what we set out to do．

　　As my senior year winds down, I remember all of my high school memories．But 　　18　　 will stick out most is the memory that I did something I 　　19　　, despite what everyone said or thought．I achieved the 　　20　　…I lived my dream．

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　　PITTSBURGH－For most people, snakes seem unpleasant or even threatening．But Howie Choset sees in their delicate movements a way to save lives．

　　The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies．

　　Dan Kara is president of Robotics Trends, a Northboro, Mass．-based company that publishes an online industry magazine and runs robotics trade shows．He said there are other snake-like robots being developed, mainly at universities, but didn’t know of one that could climb pipes．

　　The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick(操纵杆)．They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes．

　　Built from lightweight materials, the robots are about the size of a human arm or smaller．They can sense which way is up, but are only as good as their human operators, Choset added．

　　Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles．

　　“It just allows us to do something we’ve ot been able to do before, ” Stover said, “We needed them yesterday．”

　　He said sniffer dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged building．

　　Stover, among the rescue workers who handled the aftermath(后果)of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster．

　　Choset said the robots may not be ready for use for another five to ten years, depending on funding．