Read the following article and select the best answer. Article: There are new findings that not enough sleep may cause people to gain weight. Researchers say a lack of sleep can produce hormonal changes that increase feelings of hunger. In one study, researchers in the United States examined information on more than 1000 people. The people had taken part in a long-term study of sleep disorders. Some people slept less than five hours a night. They had 15 percent higher blood levels of a hormone called ghrelin than people who slept eight hours. And they had 15 percent less of the hormone leptin. Experts say ghrelin helps make people feel hungry; leptin makes you feel full. The scientists say these hormonal changes may be a cause of obesity in Western societies. They note the combination that sleep limitation is common and food is widely available. The results were not affected by how much people exercised. People who are awake longer have more time to burn energy. But the researchers say loss of sleep may increase hunger especially for high-calorie foods, so people gain weight. It seems that, for survival, the body may be designed to store more fat during times with less sleep. Researchers from Stanford University in California and the University of Wisconsin did the study. They found that the best amount of sleep for weight control is 7.7 hours a night.The Public Library of Science published the findings in its journal Medicine . Internet users can read the full study, free of charge, at plos. org. Question: Not enough sleep can cause obesity by _ . - burning more of your energy - making you want to eat more food - keeping you from doing exercise - helping you feel great without food
making you want to eat more food

(Question)
Read the following article and select the best answer. Article: Human beings have always been fascinated by twins. Romulus and Remus, Jacob and Esau, Mary-Kate and Ashley. As children, many of us imagine having a twin: a permanent playmate, a partner in trouble, someone who'd love us unconditionally. Somewhere out there is someone who is exactly like us! What would it feel like to look into a face exactly like our own? And what if she suddenly appears in my life? That's essentially what happened to Brooklyn writer Paula Bernstein. I'd known Paula slightly for years; she wrote a lovely essay for Redbook many years ago refuting the persistent belief that all adoptees want to search for their birth parents. Her adoptive family was her family, she wrote; her adoptive mother was her mother. But then, out of the blue, an adoption agency called her and told her about the identical twin sister she didn't know she had. Her sister, Elyse Schein, wanted to meet her. I met them for coffee at Cafe Mogador, three years after their first meeting. Now 38, they have different haircuts, have made different choices in hair color1, do their makeup differently. But they clearly look alike, with thick hair, upturned noses. They quickly discovered they had the same childhood habit of sucking their middle fingers, the same adult habit of forgetfully typing their thoughts on an invisible keyboard while thinking. Both edited their high school newspapers and studied film in college. Paula wrote film criticism; Elyse became a filmmaker. They both collected Alice in Wonderland dolls and kept them in the boxes. They're now regulars at Cafe Mogador. The women's journey from strangers to sisters has clearly been rocky. But as they got to know each other, and struggled to piece together their history, their search united them. "For me, the search began when I reached the age when my adoptive mother died," Elyse said. "I realized that my birth mother could be dead. Time was passing. I was ready to solve the mystery that had shadowed my life." Elyse had always felt a part of her was missing. "I'd felt... Question: What is the main idea of the passage? - We always hope to have twins for much good. - We are often attracted by twins because of the mystery. - The long-lost twins, Paula and Elyse, were reunited. - Life with twins is always wonderful.
(Answer)
The long-lost twins, Paula and Elyse, were reunited.

Ques: Read the following article and select the best answer. Article: When a group of children politely stop a conversation with you, saying: "We have to go to work now," you're left feeling surprised and certainly uneasy. After all, this is the 1990s and the idea of children working is just unthinkable. That is, until you are told that they are all pupils of stage schools, and that the "work" they go off to is to go on the stage in a theatre. Stage schools often act as agencies to supply children for stage and television work. More worthy of the name "stage school" are those few places where children attend full time, with a training for the theatre and a general education. A visit to such schools will leave you in no doubt that the children enjoy themselves. After all, what lively children wouldn't settle for spending only half the day doing ordinary school work, and acting, singing or dancing their way through the other half of the day? Then of course there are times for the children to make a name and make a little money in some big shows. Some stage schools give their children too much professional work at such a young age. But the law is very tight on the amount they can do. Those under 13 are limited to 40 days in the year; those over 13 to 80 days. The schools themselves admit that not all children will be successful in the profession for which they are being trained. So what happens to those who don't make it? While all the leading schools say they place great importance on children getting good study results, the facts seem to suggest this is not always the case. Question: In the writer's opinion, a good stage school should _ . - produce star performers - help pupils improve their study skills - train pupils in language and performing arts - provide a general education and stage training.
Ans: provide a general education and stage training.

Read the following article and select the best answer. Article: Steve Fossett did not really look like an adventurer, but he reached some of the most difficult goals in sailing and flying. Fossett was most proud of being the first person to fly around the world alone in a hot-air balloon. To make a trip around the world alone, it was necessary to have an improvedautopilot device. Fossett had one of his team members develop a more advanced balloon autopilot that would allow him to sleep and do other tasks while flying safely. Steve Fossett attempted the hot-air balloon trip around the world six times. This was not easy to do. He flew in the balloon'scapsule that was too small to stand upright. During his fourth attempt in 1998, he was almost killed during a storm off the coast of Australia. He fell 9,000 meters into the Coral Sea with his balloon's capsule on fire. He was later rescued at sea. Fossett successfully made the trip in 2002. The trip started and ended in Australia. He traveled more than 33,000 kilometers for more than 14 days. On this flight, Fossett set other records including a speed record of 322 kilometers per hour. One main problem with earlier balloon flights was the threat of dangerous storms. A team of weather experts e-mailed and talked to Fossett by a satellite telephone to help him avoid such weather. Steve Fossett's hot-air balloon is now at the Smithsonian's National Air and Space Museum in Washington, D.C. It is there as an example for other people to try and succeed in doing something important to them. Question: Steve Fossett solved the problem of bad weather on his trip by _ . - communicating with experts - using his rich experience - inventing a satellite phone - consulting other adventurers
communicating with experts