Article: A well-dressed man came into a famous jewellery shop. He explained that he wished to buy a pearl for his wife's birthday and that the price didn't matter since business had been very good for him that year. After examining a number of beautiful and valuable pearls, he chose a nice black one that cost $5,000. He paid for the pearl, shook hands with the jeweller and left. A few days later the man returned and said his wife had liked the pearl so much that she wanted another one just like it. It had to be exactly the same size and quality as she wanted a pair of earrings made. "Can you give me any advice on how to get such a pearl?" said the man. The jeweller replied, "I would say it's nearly impossible to find an exact one like that pearl." The rich man asked the jeweller to advertise in the newspapers, and offered $25,000 for the matching pearl. Many people answered the ad , but nobody had a pearl that was just right. Just when the jeweller had given up hope, a little old lady came in. To his surprise, she pulled the wonderful pearl from her handbag. "I don't like to sell it," she said sadly. "I inherited it from my mother, and my mother inherited from hers. But now I really need the money." The jeweller was quick to pay her before she changed her mind. Then he called the rich man's hotel to tell him the good news. The rich man, however, was nowhere to be found. Question: Both the man and the jeweller thought it _ . Yes or no, is the answer "difficult to get the matching pearl"?
Yes

Article: You maybe surprised to learn that one of the best steps you can take to protect your health is to step outside and spend some time in the grass, dirt and water. Our ancestors enjoyed the healing power of nature , and now scientists are starting to catch up.According to research in recent years, just having a view of nature has been shown to improve hospital patients' recovery and reduce illness rates among office workers.Also, exposure to wildlife, horseback riding, hiking, camping and farms can be helpful for a variety of health conditions in adults and children. Much of this type of research is focusing on children, and in fact an entire movement has quickly developed to connect kids with the healing power of nature. Obesity .Rates of childhood obesity have grown sharply in recent years, and this is partly because of reduced outdoor activity time.Increasing the time students spend learning about nature, both in and outside the classroom, would help solve this problem.Such lessons are often more attractive for students and often lead them to become more active outside. Attention deficit hyperactivity disorder (ADHD) .Exposure to ordinary natural settings in the course of common after-school and weekend activities may be effective in reducing attention deficit symptoms in children.Participation in green activities --such as nature walks--helped ADHD patients from a wide range of backgrounds to stay focused and complete tasks. Stress.Access to nature, even houseplants, can help children cope with stress. Depression and seasonal emotional disorder.Major depression requires medical treatment, but physical activity, especially outdoors, can help ease symptoms.For your average case of winter blues, experts suggest spending time outside every day and, if possible, taking the family to a sunny vacation spot in mid-winter. Experts emphasize that you needn' t go to wilderness preserves to enjoy nature' s benefits--simply walking in a city park or growing in a rooftop garden can... Question: Exposure to green areas in neighborhoods can _ . Yes or no, is the answer "help reduce ADHD symptoms"?
No

Q: Article: If parents had job descriptions, mine would read: organize bills, playmates, laundry(washing clothes), meals, snacks, outings and shopping. The only thing on my husband's description would be the word "fun" written in big red letters along the top. Although he is a selfless provider, our children think of him more as a combination of a jungle gym and a clown . Our parenting styles complement each other. His style is a nonstop adventure where no one has to worry about washing their hands or eating vegetables. I'm too busy worrying to be fun. Even if I try, I know I will be outdone by my husband. I bought my children bubble gum flavored toothpaste to teach them how to brush their teeth. They thought it was perfect until my husband taught them how to spit out water between their two front teeth like a fountain. I took the children on a walk in the woods and caught a ladybug (small insect). I was "cool" until their father caught a giant beetle in the backyard. I can make sure my children are safe. But I can't wire the TV so they can watch their favorite DVD. I can carry my children in my arms when they are tired and kiss them goodnight. But I can't flip them upside down so they can walk on the ceiling or put them on my shoulders so they can see the moths flying around the ceiling light. I can take them to doctor's appointments, scout meetings, or to the aquarium . But I'll never go into the wilderness, stick a worm onto a hook, catch a fish, and cook it over an open flame. I'll sit in the first row of every sports game and cheer until my throat is painful. But I'll never teach my son how to hit a home run or slide into first base. As a mother I can do a lot of things for my children. But no matter how hard I try, I can never be their father. Question: What's the biggest difference between the author's parenting style and that of her husband? Yes or no, is the answer "The author takes care of the children while her husband mainly has fun with the children."?
A: No

Article: Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy . Guess what? While I was feeling sleepy, bored by revision, my mates were more focused. Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving. But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop. A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects. "At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. " In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people--in turn aggressive, cold. Even eating became "a waste of time" and so did conversation. A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating. I admit I was curious--but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned! Question: Which statement about Modafinil is wrong? Yes or no, is the answer "Modafinil is safe in healthy people."?
No