Ques: Article: Scientists have been puzzled by the phenomenon that migrating birds fly not just in groups all the time, but in "V" formations and they have tried to figure out what benefit birds get from this particular formation. Now, a research group from University of London may have found the answer -- migrating birds fly in a "V" to save energy, according to a study published in the journal Nature. When a bird flaps its wings, it stirs the air around it and causes it to move indifferent directions. Scientist found in the study that the air creates an upward-moving wave at the tips of the wings, which means that if a bird flies around the wingtips of another bird, it can get a boost from the rising air and therefore use less energy to stay in the air. Apart form the "free ride" strategy, scientists were also surprised to observe that migrating birds timed their wing beats and adjusted their positions in a very precise way to maximize the lifting effect while avoiding areas where the air move downward. "They're able to sense what's going on from the bird in front, where this 'good air' is coming from and now how to position themselves perfectly in it," lead researcher Steven Portugal told BBC. In fact, the "V" formation has long thought to help birds fly more efficiently . A previous study showed that birds' heart rates went down when they were flying together in a "V" formation. Jet fighters were also found to be able reduce their energy use by up to 18% by staying near the wingtips of other jet fighters. Both of these findings led scientists to suspect that the "V" formation had an efficiency purpose, but until now they still lack proof. "For scientists, the new study provides an insight into an interesting natural phenomenon. But it could mean even more for aircraft companies -- helping them understand how they can _ that with their plane formations to save fuel, said Portugal." Question: What is the significance of the new study according to this article? Yes or no, is the answer "It might inspire aircraft companies to think of ways to improve efficiency."?
Ans: Yes

Ques: Article: Both of Jessica's parents were lawyers and expected her to follow suit. So she went to law school, got a job at a great firm in Washington, DC, and worked as a lawyer for a decade. But her heart was never in it. "I had a big salary but no personal satisfaction," she says. Jessica found pleasure in the same thing that had brought her joy since joining the church choir at the age of 12. "Singing always felt like communicating something real at a spiritual and emotional level," says Jessica. Yet she never considered it a career option. "That seemed like something people did in fairy tales, and I would never let my parents down," she says. It was her mom's diagnosis of brain cancer in 2009 that made Jessica realize she had to write her own happy-ever-after. "Work was busy and my mother was _ . So I was flying back and forth from Washington, DC to Houston to see her," Jessica says. "I finally said, 'Enough!' and quit." While caring for her mom, Jessica made a plan. She would spend her savings and study music for a year, and then open a part-time law practice so she could pursue her passion. Before her mother passed away two years later, she encouraged Jessica to follow her dream. Her song Live This Life was inspired by her mom, and her dad came to watch her perform at clubs. In 2012, Jessica moved to Nashville to try singing and songwriting. A decade of presenting cases in court gave her the confidence to sing for a crowd. "At 20, I would have been too shy to perform," says Jessica. "Doing music is so free," Jessica says. "There's no pressure to be a star. Success, to me, isn't a dollar amount or a record deal; it's doing what I love." Question: By telling Jessica's story, the writer most probably wants to _ . Yes or no, is the answer "encourage us to pursue our dreams"?
Ans: Yes

Ques: Article: "Everything happens for the best," my mother said whenever I was disappointed. "Don't worry. One day your luck will change." I didn't pay attention to her words. After finishing my college education, I decided to look for a job in a radio station. I wanted to host a sports programme. I went to Chicago and knocked on the door of every station. ButI got turned down every time. In one station, a kind lady said to me that I hadn't got enough experience. "Get to a small station and work for some time," she said. When I went back home, my dad told me that a businessman had opened a store and needed someone to help him. But again, I didn't get the job. I felt really down. "Your luck will change," Mum said to me. Later, I tried another radio station in Iowa. But the owner, a nice man, told me he had already had someone to work for him. As I left his office, I asked, "How can someone be a sportsannouncer if he can't get a job in a radio station?" I was waiting for the lift when I heard the man call, "What did you mean? Do you know anything about football?" He let me sit in front of a microphone and asked me to try to imagine that I was giving my opinion on a football game, and finally I succeeded. On my way home, Mum's words came back to me, "One day your luck will change, Son." Question: What was the writer's ideal job? Yes or no, is the answer "A sports announcer."?
Ans: No

Ques: Article: GUESS what's making 9 millionprefix = st1 /USteenagers scream at the top of their voices this summer? It's not the Hulk or Iron man hitting someone across a room, but the catchy beat of the music in Disney's latest TV movie Camp Rock, which came out in theUSon June 20. The show attracted more than 8.9 million viewers. So how does CampRockattract so many viewers? One reason is that it features the hugely popular boy band the Jonas Brothers, whom all the girls seem to _ But what's the story? Connect Three is a rock group. One member, Shane Gray (Joe Jonas)needs to get rid of his bad boy rocker image, so he's sent by fellow band members Nate (Nick Jonas)and Jason (Kevin Jonas) to a music camp as a guest instructor . The idea is the camp will help him clean up his act. There he meets Mitchie Torres (Demi Lovato), a teenage girl with an extraordinary voice and a driving ambition to be a pop singer. However, she can only afford to be at the expensive camp by helping her mom work in the mess hall between classes. When Shane overhears Mitchie singing from behind closed doors, he sets out to find the girl with the beautiful voice. One group of teenagers was really eager to watch the movie. The kids took their positions on the floor to countdown to show time. One of them, Leah Karrels, 16, even sang the movie's theme , We Rock. She explained that she's seen the trailer so many times she knows the words by heart. The girls cheered when the movie began, and for the next two hours the only time they got up was to run for chocolate ice cream cake from the freezer. "I'm sure this is going to knock High School Musical off the shelves in stores. This is the next big thing," said Leah. Question: Which of the following is true according to the passage? Yes or no, is the answer "The Jonas Brothers is a boy band loved by girls"?
Ans:
No