C Having a meal is an easy and delightful process for most people. However, for a woodpecker( 啄木鸟 ) , it's not that simple. To get dinner, a woodpecker has to hit its head against a tree numerous times per day. Yet, amazingly, it never suffers any ill effects like brain damage. According to research, it is the woodpecker's thick head bones that protect it from the impact of the blows. For explaining that, Ivan Schwab won an Ig Nobel Prize, Ig Nobel Prizes are organized by The Annals of Improbable Research, an American magazine that celebrates the funny side of science. Each year, ten winners are awarded prizes in honor of their "achievements that first make people laugh, and then make them think". Most of the award-winning research, like Schwab's, may seem unusual, but it usually grabs people's attention indeed. And no matter how ridiculous the research sounds, people can find it inspiring and amusing. Brian Wansink's research might interest you. He took home an Ig Nobel Prize for looking into the influence of visual factors on people's appetites. He used specially designed bowls that refilled themselves with soup while people were eating. Since these people had no idea this was happening, they just kept eating from these "bottomless bowls". They said they didn't feel full because their bowls were not empty yet. People in this experiment ate 73 percent more soup than normal. Owing to these results, Wansink concluded that it's not people's stomachs that decide when they have eaten enough, but their eyes. Ig Nobel Prizes also give attention to science and technology that is a part of our daily lives. Take the karaoke machine for example. Its inventor Daisuke Inoue was employed at a nightclub, playing the piano for the customers who wanted to sing. He wasn't skillful enough to play all the songs properly. To clear up the problem, he created the karaoke machine. To Inoue's surprise, the machine caused considerable changes in entertainment worldwide. The Ig Nobel Prize was awarded to Inoue not only because his invention was entertaining, but also because it brought about "an entirely new way for people to learn to tolerate each other". These research results of Ig Nobel Prizes may not be as great as Edison's light bulb or Newton's Laws of motion. However, they do show people's willingness to take action and to try new ways to solve problems. According to Mare Abraharus, a founder of the Ig Nobel Prizes, "If you win one, it means that you have done something. " 28. Why did Ivan Schwab win an Ig Nobel Prize? A. His discovery can be applied in daily life. B. His research result benefits the environment. C. He invented a new way to avoid the impact of blows. D. He found why woodpeckers could be free from brain damage. 29. What is mainly talked about in Paragraph 3? A. Why Ig Nobel Prizes can get people's trust. B, Why people's eyes decide their stomachs. C. Why Wansink won an Ig Nobel Prize. D. Why visual research interests people. 30. What does the Ig Nobel Prize awarded to Daisuke Inoue suggest? . A. Ig Nobel Prize's inventions can easily become popular. B. Ig Nobel Prize winners are familiar with entertainment. C. Most Ig Nobel Prize's inventions are created by accident. D. Ig Nobel Prizes may go to inventions with global influence. 31. What do the research results of Ig Nobel prizes have in common? A. They are related to every day life. B. They solve problems in people's work. C. They seem unexpected but meaningful. D. They are ridiculous and hard to understand.