Nowadays airfare isn't getting any cheaper with fuel costs rising every day. Luckily, there are plenty of ways to find the most affordable fares and also avoid paying as many extra charges as possible when you plan ahead.

    After a confirmed rabies(狂犬病) case in Parke County, Indiana, experts are urging caution if you find a bat(蝙蝠) in your home or office.

    “If you try to kill a bat, you are more likely to get bitten,” said Joy O'Keefe, assistant professor of biology and director of Indiana State University's Centre for Bat Research, Outreach and Conservation. “Most bats people find in their houses are healthy and are not going to bite them and give them rabies.” But they could be a federally endangered species, such as the Indiana Bat, which is found in this area.

    So if you spot a bat in your home or office, don't kill it or touch it with bare hands, O'Keefe said. Instead, put on a pair of heavy gloves and gently move it into a box or bucket. Once contained, the bat can be removed outside.

    “If it's a healthy bat, it'll fly away eventually,” O'Keefe said. “If it doesn't move or seem to be healthy, you can take it to the health department to be tested.”

    This is the time of year when bats move from their summer resting sites to their winter resting sites, O'Keefe said.

    “We get calls every year during the first month of school year from people finding bats in the university's buildings,” said O'Keefe.

    Bats are a great help to people, as every night they can eat up to their entire body weight of insects. Bats, however, are facing great threats from epidemics(流行性疾病), habitat destruction and other things.

    “The best way the average person can help bats is by understanding them and by telling other people how awesome bats are and what bats do for us,” O' Keefe said. “Hopefully, it will make people think that if there's a bat in their house, they should try to get it out but not kill it. That would be really positive for bats—to not have people be one of their major threats.”

    Eating is best when it's a social activity. Think of the meal a family enjoys in the evening when everyone's together after work or school, or the big get-togethers over food at Spring Festival. But now, in the age of the Internet and social media, anyone with an Internet connection can enjoy a social eating event.

    Mukbang-a South Korean phrase meaning “eating broadcast”-is an unusual food fanaticism that's sweeping the country. This is a meal where only one person gets to eat, while many viewers watch live shows of hosts eating large quantities of food. They leave comments on the dishes the host is taking, and the host responds to them live.

    So why have people taken to this unusual new food trend(趋势)? Jeff Yang, an Asian-American cultural critic, thinks that it's down to “the loneliness of unmarried or uncoupled South Koreans”. He believes that eating on your own can be hard in a country like South Korea, where social eating is such a long tradition. However, Mukbang gives people the feeling that they are part of something larger, it seems.

    Millions of people have trouble with food. Either they eat too much of it, or too little. Some say that the popularity of Mukbang helps people with these disorders. Those who always eat too much and put on weight can watch Mukbang live shows to satisfy their appetite (胃口). And those who don't eat enough can build their appetite by watching delicious food being eaten.

    Even though Mukbang is a South Korean phenomenon, it's also taken off in the US. But unlike South Koreans who sit down to enjoy noodles and kimchi (泡菜), Americans enjoy their own native dishes. This means that viewers of US Mukbang live shows will see locals stuffing themselves with hamburgers, fries and ice cream.

    Did anyone find the names of "Great Britain", "the United Kingdom", "England" and "the British commonwealth" which have the same meaning? Strictly speaking, these names all refer to something different. None of them are exactly the same as any of the others.

    The British isles refer to the main islands and several thousand small ones as well, which you can see on the map. Great Britain, or Britain, refers to the larger of the two main islands. But the word "Britain" is often used as a short form for the United Kingdom or you call it the UK.

    Now as for England, it refers simply to the largest of the three countries on the island of Great Britain. The United Kingdom is the name of the state and the official name of the country, which many people popularly refer to England.

    Finally, the Britain commonwealth is the usual name for what is left of the British Empire. This change shows the weakening of British Empire and the rising of the national liberation movements throughout the world today.

    Mr. Brown was a writer. He wrote many books, and he thought they were quite good. He lived in the city. One morning, he went to a small town near the city to visit a friend. He went there by bus. When he got to the town, he saw a bookshop not far from the bus stop. As it was early, he decided to go in and have a look. There were many books in the shop. He was very happy that all the books in the shop were written by him. "Where are other writer's books?" he asked the man in the shop. The man looked up at him and answered. "Oh, they are all sold out."

Let's face it. No one drinks diet sodas for the taste. People drink diet sodas in the hope that it will help them lose weight or at least keep them from gaining it. Yet it seems to have exactly the opposite effect, according to a new study.

Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those who didn't drink diet sodas. "What we saw was that the more diet sodas a person drank, the more weight they were likely to gain," said Sharon Fowler.

The study was based on data from 474 participants in a large, ongoing research project, where the participants were followed for nearly 10 years.

While the findings are surprising, they also offer some explanations.

Nutrition expert, Melanie Rogers, who works with overweight patients in New York, has found that when patients are switched from regular to diet sodas, they don't lose weight at all. "We weren't seeing weight loss necessarily, and that was confusing to us," said Rogers.

So why would diet soda cause weight gain？No one knows for sure yet, but it could be that people think they can eat more if they drink diet sodas, and so over﹣compensate (补偿) for the missing calories.

A related study found some sweeteners (甜味剂) raised blood sugar levels in some mice. "Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky," said Helen P. Hazuda, professor at the University of Texas's school of medicine." They may be free of calories, but not of consequences. "