Most evenings, before watching late-night comedy or reading emails on his phone, Matt Nicoletti puts on a pair of orange-colored glasses that he bought for $8 on the Internet. "My girlfriend thinks I look ridiculous in them," he said. But Mr.Nicoletti, a 30-year-old consultant in Denver, insists that the glasses, which can block certain wavelengths of light emitted by electronic screens, make it easier to sleep. Studies have shown that such light, especially from the blue part of the spectrum , _ the body's production of melatonin ,which helps people fall asleep. Options are growing for blocking blue light, though experts caution that few have been adequately tested for effectiveness and the best solution remains avoiding brightly lit electronics at night. A Swiss study of 13 teenage boys, published in August inThe Journal of Adolescent Healthshowed that when the boys wore orange-colored glasses, also known as 'blue blockers' and shown to prevent melatonin, in the evening for a week, they felt "significantly more sleepy" than when they wore clear glasses.The boys looked at their screens, as teenagers tend to do, for at least a few hours on average before going to bed, and were monitored in the lab. Older adults may be less affected by blue light, experts say, but blue light remains a problem for most people, and an earlier study of 20 adults aged 18 to 68 found that those who wore orange-colored glasses for three hours before bed improved their sleep quality considerably relative to a control group that wore yellow-colored lenses, which blocked only ultraviolet light. LEDs used in devices such as smart phones, tablets and televisions tend to emit more blue light than incandescent products . LEDs are also increasingly popular as room lights, but "warm white" bulbs, with less blue, tend to be a better choice than "cool white" for nighttime use. The lighting company Philips also makes a reduced-blue LED bulb, meant to be used before bedtime."In theory, anything that will decrease that blue light exposure at... The purpose of this article is to _ . A) advertise a brand of orange-colored glasses which can block blue light B) question the effectiveness of orange-colored glasses on the market C) introduce a kind of orange glasses that may help people sleep better D) teach readers about the most effective ways to have a better sleep
C

My ten-year-old daughter Emma got home yesterday and spoke of a boy called Jake in her class. Being quite overweight, Jake is the butt of many jokes and is treated very badly by other kids. Jake gives the impression that he's got a nice guy, mostly because he's constantly picked on. For several nights this week Emma came home upset about the fact that Jake gets picked on so much. She also mentioned that Jake had no school supplies as his family could not afford them. He was constantly asking to borrow paper, which just gives kids even more reason to pick on him. One night Emma was extremely upset about this situation. We sat together that evening and discussed it in great detail. I suggested Emma talk to Jake and found out what supplies he needed. The next day Emma talked to Jake and came to realize that Jake had a heart of gold, but rarely was able to show it because he was always on the defensive. Emma asked Jake to make a list of the school supplies he needed. Jake put down 3 ring binders, paper, pens, pencils and a pencil sharpener. Emma told him she would help and he was most thankful. That evening Emma and I went to the store and bought everything for Jake! When we got home, we put all the supplies into a brand new grey backpack--because Jake did not have a backpack either. The next day, I brought the bag to the school principal and asked him to give the bag to Jake discreetly so that he did not have to feel embarrassed. That night Emma got home with smiles on her face. The principal had called Jake to his office and gave him the bag. As Jake walked into the classroom, he looked at Emma and later thanked her very much for all the stuff. He loved it all! Emma said it was so nice to see him take out his new pencil box and start arranging his pencils and pens. He seemed very happy. Why did Emma talk to Jake the next day? A) She meant to offer him some advice. B) She hoped to know more about him. C) She expected to make friends with him. D) She wanted to find out what he needed.
D

The impression you make at the beginning of an interview is very important. Employers often decide to hire someone in the first three minutes of the interview. They judge you by your appearance, attitude and manners. A friendly smile when you walk into the room is important. A smile shows a confident and positive attitude. When you introduce yourself, make eye contact with the interviewer. Some interviewers offer a handshake. Others don't. Try to be as natural as possible. But pay attention to your body language. The way you sit, walk, gesture, use your voice and show feelings on your face is all part of your body language. It makes the interviewer know how you feel about yourself and the situation you are in. Are you feeling positively about yourself? Your abilities? Your interest in the job? Speak clearly and loudly enough. Show interest and enthusiasm in your voice. When you speak, look at the interviewer. Also, don't say negative things about yourself, or former employer. Listen to questions carefully. If you don't understand a question, ask the interviewer to repeat or explain politely. Almost everyone is nervous in a job interview. Interviewers know that. They don't expect you to be totally calm and relaxed. But they expect you to try to control your nervousness. They expect you to show confidence in your ability to do the job. At the end of the interview, thank the interviewer for her or his time. It's a good idea to send a short thank-you letter right after the interview, or deliver it by hand. Phone the company if you have not heard anything after one week. Ask if they have made a decision about the job. Good luck! Which of the following can be the best title for the passage? A) A Friendly Smile B) Making a Good Expression C) Don't Be Nervous D) Sending a Thank-You Letter
B

One fine afternoon, while walking, I remembered that I needed a pair of socks. I turned into a sock shop that caught my eye, and a boy clerk who was about 17 came forward. "What can I do for you, sir?" There was a note of passion in his voice. "Did you know that you have come into the finest place in the world to buy socks? Come with me," said the boy. I followed him to the back of the shop, and he began to take down from the shelves box after box of socks. "I am going to buy only one pair!" "I know that," said he, "but I want you to see how beautiful these are. Aren't they wonderful?" I became far more interested in him than in the socks. I looked at him in surprise. "My friend," said I, "if you can keep this up, if this is not just the enthusiasm that comes from having a new job, if you can keep up this excitement day after day, in ten years you will be a good businessman." My surprise at his pride and joy in his salesmanship will be easily understood by all who read this article. In many shops the customer has to wait for someone to serve him. And when finally some shop assistant notices you, you are made to feel as if you were interrupting him. He displays no interest either in you or in the goods he is paid to sell. It's possible that every shop assistant who is now so bored began his career with hope and enthusiasm. I have observed this happen in the lives of so many men. I have come to the conclusion that the surest road to failure is to do things mechanically . The reason why the writer walked into the sock shop was that _ . A) he knew the boy well B) it was a big shop having the most beautiful socks C) the boy clerk was warm-hearted D) he happened to notice it
D