Read the following article and select the best answer. Article: For many years, scientists have wondered how Chrysopelea paradisi, known as the "flying" snakes, can stay afloat as they leap from one tree to another, sometimes covering a distance of as long as 79 feet. Now a new study has explained that it may be all to do with the way they move. The report was published by Virginia Tech scientist, Jake Soeha who has been studying the flying snakes for a number of years. He began his research by first focusing on its launch technique. He discovered that the snakes first make themselves completely flat and then move side to side; they glide rapidly at a speed of between 26-33 feet per second, before leaping off. Once they take off, their bodies actually tilt at about a 25-degree angle to the airflow created by their flight. When they first leap, the snakes start to drop altitude to pick up speed. With the front of their bodies held stiff, they start a strange air-gliding dance, by moving from side to side. This turns their entire body into one big wing, allowing them to glide across long distances. The findings are not only exciting because they solve the puzzle of how the snakes are able to fly, but also because the same principles could be used to build small flying instruments. The flying snakes that are native to South and South East Asia spend most of their lives in trees in the lowland tropical forests. They grow between 2-3 feet long and are about as wide as a human finger. As would be expected, the smaller and lighter ones are more able to "glide" for longer distances than the bigger and heavier ones. They are not the only wingless animals that can fly -- there are flying frogs that use similar gliding techniques to make their way across forests. Question: The best title for the passage is_. - New Flying Animals - Small Flying Instruments - The New Findings - Flying Snakes
Flying Snakes

Read the following article and select the best answer. Article: One day on my luxury holiday cost 30 yuan. Bus ticket: 2 yuan. Breakfast, lunch and dinner: 5 yuan. Hotel: 20 yuan. OK, so it was a 10-seater bus with only four seats that weren't broken and 20 other people on it. OK, all my food came from one steamed bun stand at the side of the road, and the "hotel" was a hostel , and I shared a room with four strangers. But the steamed buns I bought were so delicious and the bed in the hostel was soft and comfortable and I had the best night's sleep I'd had in years. Cheap travel is " _ ". It's on reality shows, and it's all around us. People who once went to five-star scenic spots are suddenly filling youth hostels and campsites, showing off to their friends about their 24-hour trip in the third-class sleeper train across Mongolia. Now, I'm not a millionaire who can afford more than a budget holiday. But even if I could, I don't think I'd spend the money. Budget travel is addictive . It's partly the challenge of squeezing the most out of your pennies -- and it can get a bit ridiculous . My stomach wasn't too impressed with the meat stir-fry I bought from a stand simply because it was 1 yuan, for example. But it's easy to travel in a smart way, too. With the Internet, you can always check out reviews and find hostels, food and things to do, recommended by other budget travelers who've been there before. You don't have to suffer, and it means you can afford to spend more nights on holiday, see more things and have more experiences. Question: The author mentions her budget travel story at the beginning to _ . - show what budget trips are generally like - introduce the best trip she's had over the years - show how difficult it can be to spend as little money as possible - display her ability to spend her money cleverly
show what budget trips are generally like

Q: Read the following article and select the best answer. Article: The next time you get caught jumping on your bed you can tell your parents with a straight face that you are not playing, simply getting ready got a promising career in "Mattress Jumping". Believe it or not, there are some people who actually get paid to do that! According to Reuben Reynoso, a professional mattress tester at San Francisco's McRoskey Mattress Factory that still makes every mattress by hand, it is real work and needs some training. For a start, it's not all about jumping to new heights or doing tricks like professional athletes, but rather about feeling each area of the mattress carefully to detect the filling. In order to do it right, every bit of the mattress has to be tested slowly and deliberately. Over the years, Reynoso has figured out the perfect routine. He begins by placing a protective mat over the mattress so that it doesn't get dirty or absorb the smell from his feet. Then begins the fun---he steps to the middle of an edge and then takes five steps back and five steps forward. In this way, he slowly but surely, covers the entire surface. The key according to him is to find the perfect number of jumps---Too many and he will end up destroying the mattress completely. Too few? And it will not fit into the giant machine for that final sewing! Who knew a job that sounds so simple could have so many skills! While Reuben will not reveal how he got into this profession, he will admit that it is more fun than being a carpenter, roofer, construction worker and railroad engineer---all jobs he has tried previous to finding his true profession! Question: We can learn from the text that Reynoso _ . - has been injured several times in his work - liked mattress jumping in his childhood - didn't choose mattress testing as his first job - dreamt about becoming a jumping athlete
A: didn't choose mattress testing as his first job

(Question)
Read the following article and select the best answer. Article: The most popular names in the west Every year in Englishspeaking countries,people list the most popular names. Here are some examples. In the United States at the moment the three most popular names for girls are Emily,Emma and Madison. For boys,they are Michael,Joshua and Mathew. In Britain a parent today might call their little girl Grace,Jessica or Ruby. If they have a little boy they could call him Jack,Thomas or Oliver. In China names have very clear meanings. If a girl is called Mei,her name means "beautiful". If a boy is called Wu,his name means "like a soldier". Names in Englishspeaking countries are like this too. The girl's name Joy is probably partly chosen because the parents wish their daughter to be joyful and bring joy to others. If a girl is called Ruby,it may be because of the beautiful red precious stone. Parents often pick names that can be shortened. This can be confusing for Chinese people. Parents might choose such names because they want to be able to speak to their kid in a personal way. For example,a popular name is William. But William can be shortened to Will,Willy,Bill and Billy. The same is true of the favourite old name for a girl,Elizabeth. Elizabeth can be shortened to Beth,Liza and Liz. Another reason why kids get the names they do is that parents want to name their boy or girl after someone who is famous,such as an actor,a pop music star or a sports star. David is a popular name in Britain,partly because of the fame of the footballer David Beckham. Question: In Britain,people may call a little girl _ . - Emily - Grace - Mathew - Oliver
(Answer)
Grace