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I'm taking a test and have to guess the right answer to the question after the article. Article: Doctors sometimes prescribe light therapy to treat a form of depression in people who get too little morning sun. But too much light at other times may actually cause such mood disorders. Long-lasting exposure to light at night brings depression, a new study finds, at least in animals. The new data confirm observations from studies of people who work night shifts, says Richard Stevens of the University of Connecticut Health Center. Mood disorders join a growing list of problems, including cancer, obesity and diabetes--that can occur when light throws life out of balance by disturbing the biological clock and its timing of daily rhythms. www.ks5u.com In the new study, Tracy Bedrosian and Randy Nelson of Ohio State University exposed mice to normal light and dark cycles for four weeks. For the next four weeks, half of the mice remained on this schedule, and the rest received continuous dim light throughout their night. Compared with mice exposed to normal nighttime darkness, those getting dim light at night lost their strong preference for sweet drinks, "a sign they no longer get pleasure out of activities they once enjoyed, " Bedrosian says. In a second test, mice were clocked on how long they actively tried to escape a pool of water. Those exposed to night lights stopped struggling and just floated in the water, a sign of "behavioral despair",10 times as long as the mice that had experienced normal nighttime darkness. All symptoms of depression disappeared within two weeks of the mice returning to a normal light-dark cycle, the researchers report. The scientists also could quash the behavioral symptoms by injecting the brains of animals with a drug that prohibits the activity of certain molecules linked with human depression. This finding further suggests that light at night may cause something related to depression. Human studies linking nighttime light and mood disorders are important but can't easily detect molecular underpinnings as animal studies can,says George Brainard of Thomas Jefferson... Question: What is the main idea of the passage? Options: A: Nighttime light may foster depression. B: A drug has been found to cure mood disorders. C: The study on animals can be applied to humans. D: Human biological clock can be controlled by light.
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: For the business traveler who is all about efficiency: Check out these hotels that will get you in and out with a minimum of trouble. When you are pressed for time on a business trip, nothing can _ you more than a slow hotel check-in process. On your next trip, try these hotels that offer a speedier check-in process. 1. Yotel New York The self-service kiosks at this high-tech New York hotel work just like the ones you'd see at an airport. There are just five-steps to register and obtain your card key. There is even a robotic luggage bellboy. You tap in the number of bags you are carrying and sizes, then wait for a robot arm to swing down and store your luggage in a locker (say, for a day trip). This also speeds up the check-in process if the first thing you need to do, like me, is head to a series of meetings. 2. Marriott Detroit Airport Another option for business travelers in a hurry: Marriott is rolling out its mobile check-in app to 325 hotels this year, including the Marriott Detroit Airport hotel. (I've tested the app itself but not for a real visit quite yet.) Here is the basic idea: you download the iphone or Android app. The night before, you can "check-in" virtually. When you arrive, you get an alert that the room is ready and your key, which is already tied to your reservation, is waiting for you at the desk. 3. Hyatt Regency Minneapolis I happened to stay at this hotel recently and liked how fast the kiosk check-in works. Like the Yotel, the kiosk asks you to insert your credit card, similar to an airport terminal. The whole process took about three minutes, when I left, I was equally impressed with the fast check-out. An agent meets you in the lobby with an ipad and asks for an email to use for a receipt. The big advantage: you never have to wait in line. 4. Radisson: LaCrosse The Radisson is trying to make the kiosk process even faster, at a few select hotels like the Radisson Lacrosse in Wisconsin, you use a mobile app to register and then receive a barcode by email or text. When you get the... Question: Which two hotels offer a mobile app for customers to check in? Options: A: Yotel New York and Marriott Detroit Airport. B: Marriott Detroit Airport and Radisson: LaCrosse. C: Marriott Detroit Airport. and Hyatt Regency Minneapolis. D: Hyatt Regency Minneapolis and Radisson: LaCrosse.
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: When I wake up on summer mornings, I know I am going to my favorite place to volunteer and make a difference in someone's life just by being with him or her -- a summer school for autistic children. By helping the kids read or do math, I am not only teaching important skills but also helping them feel like any other kid. There are many wrong ideas about autism. The kids I work with can think and feel. They need help only in certain areas. Of course, each kid is special. For example, some kids like to draw, and others like to sing. At the school, the kids learn through about 20 activities. These activities can help them learn skills they will need later in life. The very first day I volunteered, a boy came up to me, put his hand on my shoulder, and said "Hello". From then on, I knew I could make a difference. Another boy loved to have me read books that can help him learn to read. Sometimes he could be encouraged to read a few words or sentences. Finally, one day during reading practice, he read nearly 220 words himself! Summer school is also a time for fun, Last summer, bagpipe players came to perform. Most of us had our hands over our ears because they were so loud. When they asked for a volunteer from the audience, one girl raised her hand as high as she could, got up on stage, and even tried the bagpipes in front of everyone. Through these experiences, I realize that the challenges these kids face do not stop them from doing many amazing things. I'm teaching them, but they are teaching me more. Question: What does the author mainly talk about in the passage? Options: A: His teaching experience in a summer holiday. B: How to make a difference in others' lives. C: His experience as a volunteer in a special summer school. D: Autistic children's hard life.
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C