After ten years, the world' s largest music festival, Rock in Rio, returned to its hometown Rio de Janeiro for seven days of concerts from Friday, September 23rd, attracting 700,000 people over the whole week. It is the 10th edition of the Rock in Rio festival, but only the 4th to be held in Rio as the organizers exported the festival to Lisbon and Madrid ten years ago.The first edition of the festival was in 1985 and the most recent edition in Rio was held in January, 2001.A total of 700,000 tickets were sold out for this year' s festival. The festival consists of four stages with the participation of International stars including Elton John, Katy Perry, and bands Metallica, Evanescence and System of a Down.Several stars which performed in previous editions are also on the list this year..In addition, a number of local singers and bands will also join this year. The performance site, named as Rock City, is a 150,000-square-meter area.Besides the concert area, the site also has a giant Ferns wheel, a roller coaster, and a small shopping mall.After the festival, the Rock City area will be converted into a leisure area to athletes in the 2016 Olympic and Paralympic Games in Rio de Janeiro According to Rio' s tourism company Riotur, out of the 700,000 people expected in the festival, some 315,000 will be tourists, who raised the hotels' occupation rate to 98 percent.Riotur estimated that the Rock in Rio festival will bring 419 million U.S.dollars for the city and create 10,000 jobs. The creator of the festival, Brazilian businessmen Roberto Medina, insisted on opening the Rock City gates himself, in the early afternoon, and greeted the first fans to enter the site."We come to the gate because the Brazilian audience is even more important than the bands.We applaud them.They make the greatest show," he said. From the passage, we can know _ . A) Rock City is a great theatre B) Only rock bands are invited to the festival? C) the festival will improve the employment of Rio D) The gate of Rock City was opened by the Brazilian audience
C
(Question)
Ears are for hearing -- everyone knows that. But for a creature called the Cuvier's beaked whale, hearing starts in the throat, a new study found. The observation might help explain how all whales hear. The work might also help scientists understand how animals are affected by underwater sonar . This sonar, used by some ships, sends out sound waves to locate underwater objects. The Cuvier's beaked whale is a so-called toothed whale. Toothed whales dive deep into the ocean in search of food. As the whales hunt, they produce sounds that reach objects and then return to the whales. This allows the animals to "see" the shape, size, and location of objects, even when they're 1,000 meters under the sea, where it is totally dark. To better understand how the whale hears, researchers from San Diego State University in California took X-rays of two Cuvier's beaked whales. The whales had died and washed up on the beach. Ted Cranford and his colleagues used the images to make a computer model of a Cuvier's beaked whale's head. Then, they modeled the process of sound traveling through the head. The researchers knew that some sounds get to the ears of a toothed whale through a structure called "the window for sound". Found on the lower jaw, this structure is very thin on the outside and has a large pad of fat on the inside. When the researchers used their computer model to work out how sound waves travel in the whale's head, they were surprised to find that sounds coming from right in front of the whale actually travel under the animal's jaw. From there, sound waves move through the throat, into a hole in the back of the jaw, and finally to the pad of fat near the animal's ears. Cranford guesses that other types of whales may hear through their throats. Further testing is needed to be sure. Eventually, the insight into how whales hear might explain whether sonar testing by military ships is causing the animals to wind up on beaches. Researchers took X-rays of two Cuvier's beaked whales in order to _ . A) find out why they had died and washed up on the beach B) make a computer model of a Cuvier's beaked whale's head C) make sure that sound travels through the head D) know more about the way the whale hears
(Answer)
D
Ques: We all know that Paris is a popular travel destination, which has much more to offer than just seeing the Louvre and the Eiffel Tower that are well-known. Experience this amazing city through some of its secret places. River Boats Tour the heart of Paris by boat along the Seine River! Boats offer 8 must-see tourist stops along their boat tour route. The cost is 13 Euros for a whole day of river boating with stops for tourists to walk through the Parisian sites. There is a 15-minute interval between two boats. Boating along the Seine is a good way to drink in the unique atmosphere of Paris! Children's Science Museum If you are travelling to Paris with kids, the Children's Science Museum is the perfect place to visit. The Children's Science Museum has many exhibits for children. Some exhibits exercise a child's cognitive skills. The cost is low by European standards at only 8 Euros per adult and 4.50 Euros per child. Medieval Tavern In Paris , tourists can enjoy the night at Medieval Tavern every Thursday night from 8PM--2AM. This tavern opens its doors to the people of Paris and invites them to experience a life from long ago. The menu includes foods that were enjoyed in old days. The entire experience can be enjoyed for only 15 Euros per person! Luxembourg Garden The garden is the second largest public park in Paris. Whether you are interested in a walk through the flowers or a pleasant ride on the old carousel , this park is a good choice. Children like playing in the theater while adults enjoy free musical performances. Welcome to Paris and enjoy these attractions. What can we learn from the passage? A) Luxembourg Garden is the largest public park in Paris. B) The Children's Science Museum is very popular with tourists. C) Tourists can enjoy free musical performances at Medieval Tavern. D) Children can exercise their cognitive skills in the Children's Science Museum.
Ans:
D