Article: To live forever was the dream of many emperors in ancient China.People were ordered to call them Wansui,which means 10,000 years,but no human could live that long.How long can humans really live? According to the latest scientific discovery,humans are able to live up to the age of 120 or perhaps even longer. Several recent studies showed that our life span can be extended far beyond normal limits.Cynthia Kenyon,a professor at the University of California in San Francisco doubled the life of a worm from two weeks to a month.By changing the function of a single gene,known as daf-2,the scientist not only added extra days to the worm's life but also kept it a healthy as worms which were half its age. There are two similar genes in the bodies of mammals.By changing the function of on gene,scientists extended the life of a mouse by 1 8 per cent(or 4.5 months).Another gene is called IGF-1.Researchers still don't know how it affects our body.But by reducing its functions the life of a mouse increases by 33 per cent for 8.6 months).The average life span of a mouse is 26 months. In the experiment of extending life,an ancient saying,"you are what you eat." also seems to be true.Vegetables contain fewer calories than meat,and help to prolong life,scientists say. Research has found that taking in fewer calories affects our lives in a similar way to reducing IGF-1. US biologist John Phelan suggests low calorie diets could increase human life span,but there is no proof yet. Researchers are still waiting for the results of a study started in 1987.Monkeys are fed with low calorie food to see what happens.A monkey's typical life span is 40 years,so there is a little while to wait. In China,average,life expectancy has now reached 70,double that of 1949. Increasing the length of our lives may bring us closer to the dreams of our ancient emperors.But it may also cause social problems such as housing and employment,social scientists have warned. Question: What is the main idea about this passage? Yes or no, is the answer "We are able to live longer."?
Yes

Article: Do you know anything about the history of weather? Don't look at the sky. Don't look for old weather reports. Looking at the tree rings is more important. Correct weather reports date back only one century, but some trees can provide an exact record of weather even further back. It is natural that a tree would grow best in a climate with plenty of sunlight and rainfall. It is also expected that little sunlight or rainfall would reduce the growth of a tree. The change from a favorable to an unfavorable climate can be found out by the reading pattern of rings in a tree trunk. To find out the weather of ten years ago, you can count the rings of a tree trunk from the outside to the inside. If the tenth ring is far from the other rings, then it is certain that plenty of sunny and rainy weather occurred. If the rings are close together, then the climate was bad for the tree. Studying trees is important not only for the history of weather, but also for the history of man. In an area of New Mexico you can find only sand -- no trees or people. However, many centuries ago a large population lived there. They left suddenly. Why? A scientist studied the pattern of the rings of dead trees that had grown there. He made up his mind that the people had to leave because they had cut down all the trees. Trees were necessary to make fires and buildings. So, after the people destroyed the trees, they had to move. In this example studying tree rings uncovered an exciting fact about the history of man. Question: By studying the rings of dead trees in an area of New Mexico, the scientist found _ . Yes or no, is the answer "why the people had to leave"?
No

Q: Article: In James Cameron's fantasy films, such as Avatar and The Abyss, the unexplored is decorated in color and filled with alien danger. But on his dive to the deepest place on Earth, which took place on a Sunday last month, reality proved far different: white, deserted, and dull. "I felt like I literally had gone to another planet and come back," Cameron said after returning from the cold, dark place in the western Pacific Ocean, nearly 7 miles (11km) below the surface. "It was a very fantastic day." Cameron is the first person to explore the deepest valley in the ocean since two men made a 20-minute trip there in 1960. He spent about three hours gliding through the icy darkness, brightened only by lights on the one-man sub . This deepest section of the Mariana Trench is so untouched that at first it appeared dull. But there's something strangely interesting about the first pieces of video that Cameron shot -- a sense of aloneness. "It's really the sense of isolation, realizing how tiny you are down in this big, black and unexplored place," the Titanic director said. The wordless minute-long video, released by sponsor National Geographic, shows Cameron's sub gliding across what he calls "the very soft, almost gelatinous flat plain." To Cameron, the main thing was to appreciate being there. "There had to be a moment where I just stopped, and took it in, and said, ' _ What does that mean?'" Cameron told reporters during a conference call. The trip was only about half as long as planned because Cameron's battery ran low. He said he would return and film it in 3D for later viewing. "I see this as the beginning," Cameron said. "It's not a one-time deal and then moving on. This is the beginning of opening up this new frontier." Question: Why did Cameron dive to the deepest place on Earth? Yes or no, is the answer "To open up a new frontier."?
A: Yes

*Question*
Article: With all the responsibilities we face in our daily lives, it's often hard to get a good night's rest. The problem really lies in the stress that many of us experience. Stress robs you of the rest that you need by putting you in a state of pressure and worry. There are, of course, some methods that can help you relax, but only a few of them give you a good night's sleep. One of them is soothing music for sleep. Sleep music is not just for encouraging relaxation, it also can be used for various situations. Want to have a relaxing evening by yourself? Practice yoga in a comfortable environment? Think over something important? Then put on your favorite sleep music. Sleep music is not only fit for adults, but has also been known to be good for children. Soothing music helps your children go to sleep more easily. Massage therapists can also benefit from using soothing music for sleep in their clinics . This allows clients to benefit more from the session. For example, massage therapists can provide the relaxation of the body through their techniques, and the music helps clients relax their minds, helping them to relax deeper and feel more refreshed after the session. You'll never run out as there are some artists and companies that make sleep music. Choosing the right music is important as well. Like most music that you can find and buy in stores, sleep music has different styles, sounds, and subjects. There are those that are specifically for relaxation, while some are intended to help you go to sleep. The great thing about sleep music is that it will be something you'll be using for months, even years to come. If you want a deeper relaxation and better sleep, give some soothing music for sleep a try. Question: We can learn from the text that _ . Yes or no, is the answer "clients will feel more refreshed after the massage using sleep music"?
**Answer**
No