Article: Risk of death is 3.5 to 5 times greater for obese smokers than it is for people who have never smoked and are at a normal weight, according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine. The study, which began with a self-administered questionnaire taken between 1983 and 1989, asked more than 80,000 radiologic technologists aged 22 to 92 questions about age, height, weight and smoking behavior. BMI (body mass index) was calculated, with a BMI of 30 to 34.9 being considered obese, and 35 and over being very obese. Smoking behavior was analyzed by looking at a person's tobacco consumption level, number of years smoked, and current smoking status. Researchers then followed participants through December of 2002, noting the number of deaths that occurred. The study involved researchers from the National Cancer Institute, the University of Minnesota and the American Registry of Radiolegic Technologists. Key Findings: 20 percent of obese adults in the United States smoke. Obese smokers face a greater risk of death from cancer and circulatory disease. Current smoking is a greater risk factor for death by cancer than obesity is, generally speaking. The higher a person's pack-years (number of packs smoked per day times the number of years smoked) are, the greater the risk of death.www.zxxk.com Men and women of all ages faced an elevated risk of death due to circulatory disease as BMI increased. And for those who were both obese and currently smoking, risk of circulatory disease increased 6 to 11 times under the age of 65, as compared to their never-smoking, normal weight counterparts. While it's not surprising that obesity coupled with smoking is a recipe for trouble, it is important to highlight this growing health concern in America today. Taking Charge of Your Health Making healthy choices can be difficult when we're constantly exposed to products that are dangerous to our health, but it's not impossible. With education and some motivation, we all have the ability... Question: What is the purpose of the text? Yes or no, is the answer "To call on the obese smokers to quit smoking."?
Yes

Article: Long ago there lived a powerful king. Some of his ideas were good, but others caused people to suffer. One of the king's ideas was to set up a public arena . When a person was accused of a crime, his future would be decided in this arena. It had two doors, side by side, exactly alike. The accused person was taken into the arena and asked to open one. Behind one door was a hungry tiger, while behind the other was a lady chosen especially for him. To this lady he would be immediately married, in honor of his innocence. The king had a beautiful daughter whom he loved very much , and she secretly loved a young commoner . When the king discovered their relationship, the man was immediately put in prison, and a day was set for him to enter the arena. The princess knew behind which door stood the tiger, and behind which a lady. She also knew that the lady was one of the loveliest in the kingdom. The princess hated the woman behind that silent door. As he entered the arena and his eyes met the princess's, the young man knew that she knew behind which door waited the tiger, and behind which stood the lady. The princess raised her hand, and made a short, quick movement toward the right. No one but her lover saw it. Every eye was fixed on him. He turned, and with a firm, quick step he walked across the empty space to the door on the right and opened it. Now, the point of the story is this: Did the tiger come out of that door, or did the lady? The more we think about this question, the harder it is to answer. It involves a study of the human heart. The soul of the princess loved the young man but also burned under the fires of sadness and jealousy . The question of her decision cannot be easily answered. And so I leave it with all of you: which came out of the open door? The lady or the tiger? Question: Which of the following is TRUE about the princess's decision? Yes or no, is the answer "The question of it is left open by the author."?
Yes

Article: Idioms are phrases and sentences that do not mean exactly what they say. Even if you know the meaning of each word you see or hear, you may not understand the idiom because you don't understand the culture behind it. For example, if an American boy asks his mother what's for dinner tomorrow, she may say "I'll play it by ear", that means she doesn't have plans for dinner and she will decide later. "Play by ear" used to mean playing music using the sheet music, but now people often use it when they're not talking about music. There're many idioms in English. If you learn to use them, your English will be more vivid and colorful. English idioms are more common in spoken English. They can be difficult to remember sometimes. Next time when you hear somebody saying to you, "Give me a hand", you don't necessarily stretch out your hand to him/her, but you do need to be helpful. And when the situation is out of hand, you usually can do very little to manage all that. What about a green hand? It's not about the color of your hand! You're a green hand when you are very new at your work and don't have much experience. If you and your partner always work together hand in glove, you two definitely work together very well. Can you guess the meanings of some common English idioms to do with parts of your body? Question: If a mother says "I'll play it by ear" to talk about the dinner, she means _ . Yes or no, is the answer "She doesn't have plans for dinner and will decide later"?
No

Article: You may have never heard of Lanthanum, Cerium or Neodymium, but these elements and others known as "rare earth" play a major role in modern technology. They can actually be found in many places on the earth, but not in quantities that can be mined. Only a few countries -- China, America, India, Australia, Brazil and Malaysia have any that can be mined enough to be traded. Even though some of these elements such as Cerium are as abundant as Copper, they are not found in concentrated amounts on the earth's surface. They are often mixed together with other metals, which makes extraction of these elements an expensive and an environmentally messy process. It was due to this reason that the term "rare earth" was invented. Rare earth metals are used widely in our life. Rechargeable car batteries, computers, iPhones, DVD players, computer monitors, televisions, lighting, lasers, glass polishing, and superconductors all use quantities of rare earth metals. Also, with the advancement in "green" technology like solar panels, these shiny materials are becoming more important than ever. An average electric car uses 10 pounds of Lanthanum for its rechargeable battery! America has large deposits of rare earths and has one of the first mines. It was opened in Southern California in 1940. The element "Europium" was the first metal to be separated in quantity for use in color televisions. However, in the 1980's and 1990's, as China started producing these elements in Inner Mongolia, the mines in America and elsewhere could not keep pace. The mine in Mountain Pass, California also failed environmental regulations and shut down in 2002. Now, recognizing the importance of having more than one supplier of this important resource, other rare earth owning countries like India and Australia are either dusting off their rare earth mines or speeding up their production. It is believed that the debate over rare earths will become louder in the coming months and years. Question: What can we learn about rare earths? Yes or no, is the answer "They are not really as rare as they are named."?
Yes