【文章內(nèi)容簡介】 eel we can work through this, said Mark Monahan, executive director of the festival. Anything that changes the schedule has a major effect, so we39。re taking it very seriously. The discovery meant that government officials rushed to protect the nest and the eggs hiring a security guard to watch over them 24 hours a clay. Environmentalists were also brought in. We don39。t know when the eggs might hatch, “said Monahan. What is known is that the young killdeer will likely leave the nest soon after they are hatched, leading many to hope that the eggs hatch in the next day or so.The festival is now asking permission from Environment Canada to relocate the nest some 50 meters away or take it to a wildlife center. Moving the nest would also ensure the bird and its young would be protected during the festival’s 11 day run, said Monahan. It’s highly likely that the festival thousands of attendees would cause huge problems for the bird and its eggs. Monahan was confident that the festival would go on as planned, however. ‘‘Most of the people we’re working with …are looking for a positive solution, Monahan said. “There is no one saying that the festival can39。t go on. As news of the dilemma spread, it left residents divided. Some supported the bird, saying that moving the nest might result in the eggs being abandoned. Others expressed annoyance that protecting the eggs of the small bird, which is widespread across North America, was risking an annual festival that contributes millions of dollars to the local economy.The killdeer39。s tendency to build its nest in open fields or flat areas has caused issues in other areas of the US: earlier this year, construction on a health center in Wisconsin was temporarily stopped after a killdeer and its four eggs were discovered.28. What can we learn about Bluesfest?A. It is the first music festival in Canada.B. It is a music festival held every two years.C. It is a challenging outdoor activity in Ottawa.D. It is an important event for music lovers29. What was especially challenging for Bluesfest this year?A. Pressure from the government.B. Disagreements with the public.C. The need to protect the bird39。s eggs.D. The lack of experience in hosting the event.30. How does the festival intend to deal with the problem?A. Move the nest to another place.B. Ask government officials for help.C Seek advice from environmentalists.D. Hire security guards to protect the eggs.31. From the passage we can infer Mark Monahan was in a(n) situation.A. encouraging B. difficult C. extreme D. dangerousDAs we all know, most animals only perform tricks when given treats. However, Kim, the world’s first spider to learn a skill, needs no stimulus (刺激物) to do what she loves—jumping from different heights and distances— upon the instruction of a team of scientists from the University of Manchester.While the idea of training a spider might sound evil, the researchers’ motives were purely scientific. They are trying to unlock the secrets behind the jumping spiders’ extraordinarily high leaps to catch prey (獵物) or to escape their enemies. A better understanding of the spiders’ leaps would help experts develop more efficient flying and jumping robots.The scientists found that Kim could gather enough force in her legs to jump more than six times the length of her own body from a stationary position. What was even more amazing was that she always landed perfectly. For shorter distances, Kim used a lot of energy, resulting in quick leaps, which the researchers believe probably increases her chances of catching fastmoving prey. The farther the distance, the less extra energy was used, resulting in slower but precise leaps.Previous studies have indicated that spiders use both their muscles and hydraulic (液壓的) pressure—a mechanism by which blood is transferred to their extended legs—to push them off the ground. However, in Kim’s case, her leg muscles alone appeared to be generating enough force for the liftoff. The researchers now intend to do further research to prehend fully not just the spiders’ jumping technique, but that of other insects as well. “We are familiar with robots that are aimed at taking over human functions, but there are millions of insects in the world that perform specific functions that we have interest in adapting to robotics,” says Nabawy, the leading engine