Read the following article and select the best answer. Article: 3D cinema has been around since the early 20th century, but Hollywood brought the technology back in 2007. Many thought it was just a trick to make more money. But then came Avatar, the first must-see movie in 3D. But since Avatar, 3D cinema has struggled. In 2010, several 3D movies bombed at the box office. And by late 2010, Some people said the technology was dead. Of course, this isn't the first time Hollywood has struggled with new technology. In the late 1920s, sound was added to movies, but it took audiences a long time to get used to the new technology. And in the end, sound and color1 became the standard. James Cameron, director of Avatar, thinks we're going through the same process with 3D. Some say cinemas are charging too much for 3D movies. In the US, seeing a 3D movie can cost up to $7.5 more than seeing it in 2D. Also, a recent study at California State University found audiences don't actually enjoy movies in 3D any more than in 2D. Walter Murch, a famous movie editor, wrote in 2011 that human beings have no ability to process 3D images. Watching a 3D movie confuses our brain and this is why some people get headaches. But James Cameron disagrees. In fact, he recently predicted that in five years all movies will be in 3D. And there are signs that 3D is fighting back. More 3D movies were put on the market in 2012 than ever before. The Lion King 3D recently made over US $150 million at the box office, and Cameron's Titanic 3D made even more. Who knows what the future holds for 3D? Steven Spielberg recently said, "I'm hoping 3D gets to a point where people don't notice it, because then it is just another tool and helps tell a story." Question: The following statements are all incorrect except _ . - Avatar was the first 3D movie. - All movies will be in 3D in the future.. - Titanic 3D has made the most money. - 2012 witnessed more 3D movies than before.
2012 witnessed more 3D movies than before.

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Read the following article and select the best answer. Article: On Monday, the Centers for Disease Control and Prevention predicted that 42% of Americans could be overweight by 2030.Our expanding waistlines lead to not only a medical problem, but according to a recent article in The New York Times, it could also endanger personal safety in some situations-in an airplane crash, for example. The New York Times' Christine Negroni reports that engineers and scientists are questioning whether airplane seats are adequately constructed to protect overweight travelers. Government standards for airplane seat strength -first set more than 60 years ago---require that the seats be made for a passenger weighing 170 pounds(77kg).Today, the average American man weighs nearly 194 pounds(88kg) and the average woman 165 pounds(75kg).Negroni reports: "If a heavier person completely fills a seat ,the seat is not likely to behave as intended during a crash,"Robert Salzar,the leading scientist at the Center for Applied Biomechanics at the University of Virginia. "The energy absorption(,) that is built into the aircraft seat is likely to be overpowered and the passengers will not be protected properly". "Nor would the injury be limited to that passenger only," Dr. Salzar said. "If a seat or a seat belt fails,"he said, "those people who are seated nearby could be endangered from the uncontrolled movements of the passenger." Most complaints about airplane seats focus on their lack of comfort and high ticket price, and whether overweight passengers should be made to buy two seats. But The New York Times' article bring up another reason to feel anxious about flying. Investigators of the issue got in touch with the airplane seat and seat belt makers, but they refused to comment on the problem.Experts agreed that crash testing should be done with overweight dummies .Both airplane seats and seat belts should be tested, _ said. Fortunately, however, according to Nora Marshall, a senior adviser at the National Transportation Safety Board, the board's investigators have never seen an accident involving a... Question: We can learn from the text that _ - airplane seat makers have taken action now - there are few complaints about airplane seats - those seated near the overweight may suffer too - only a small number of airplane accidents involve the overweight
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those seated near the overweight may suffer too

Read the following article and select the best answer. Article: A spirit of adventure, curiosity about different cultures and the desire for a challenge can be found in young people everywhere. More and more students inprefix = st1 /Chinaare backpacking around the country. According to the China Youth Travel Service, Hainan, Dalian, Zhangjiajie andQingdaowere among the most popular spots for young Chinese backpackers last year. Backpacking allows the traveler a greater sense of independence. "I can no longer put up with the instructions of a tourist guide," said Huang Ye, a 19-year-old college student inBeijing. "They are always driving you to places that you do not want to go to and trying to make you buy local souvenirs." Huang likes to travel as a backpacker. She prefers an independent trip that she took with two friends to Jiuzhaigou inSichuanProvince. There, they chose some scenic spots to visit and avoided the masses of tourists. Backpackers see the difficulties of such travel as a challenge. Living on bread and water for days on end, wearing the same clothes over and over again and carrying a heavy bag on their backs while climbing a mountain are all character-building experiences. But perhaps the greatest challenge that a backpacker faces is not a physical one, but mental. They may face loneliness if they travel alone. Chen Xuewei, 21, suffered when he took off aroundChinalast year."I felt very lonely at the beginning of my journey. A walkman didn't make me feel better, but rather heightened the sense of loneliness I felt. I even called up my friends to tell them that I wanted to give up and go back toBeijing," he recalled. But he kept going. He started to make friends and appreciate the local customs. He took lots of photos to record his trip and now he is glad he stuck it out. Backpackers generally find themselves to be mature after their experiences. "Their travel logs track their development as people." "When I feel _ , I read my travel log again," said Tang Weifeng, a postgraduate atPekingUniversity. "By reading... Question: What is the story mainly about? - Some backpackers' experiences. - The advantages of backpacking. - Young people's love of backpacking. - The increasing popularity of backpacking amongChinese students and its reasons.
The increasing popularity of backpacking amongChinese students and its reasons.