Ques:Read the following article and select the best answer. Article: In some children who go blind, certain parts of the brain that normally control vision appear to switch jobs and focus instead on sound, a new study has found. The study, by researchers at the University of Montreal, involved 7 adults who could see and 12 adults who had lost their vision when they were children. Each participant sat in a room with 16 loudspeakers at different locations. The room was designed so that there were no echoes During the experiment, the speakers irregularly produced sounds. Participants had to point to where the sounds were coming from. Meanwhile, the researchers monitored blood flow in the brains of the participants to see which brain structures were working during the task. The results showed that five of the blind participants were very good at pointing to where sounds were coming from. In these people, blood flow increased in the visual cortex --- an area at the back of the right side of the brain. This part of the brain is usually associated with vision. The other seven blind participants showed no increase in activity in the visual cortex. These people didn't do very well at picking out where sounds were coming from. Now, the researchers are looking at whether these people have gained an enhanced sense of touch instead of sound to replace their lost vision. The scientists say that their study shows how adaptable parts of the brain can be. Question: The purpose of the experiment described in the passage is to find whether _ . - blood flow in the brains of blind people is slower - blind people have a better sense of sound - the sense of touch is better among blind people - blind children can regain their sight

Ans:blind people have a better sense of sound
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Ques:Read the following article and select the best answer. Article: One of the most popular ways to explore Boston is on a Boston Duck Tour or a Super Duck Tour. Every spring, these vehicles take visitors to the streets and waterways of downtown and have proven to be a popular way to visit many of this city's historical sights. What Each of the two tours provides history and information about some of the city's most popular attractions, including the Prudential Tower, Faneuil Hall, the Museum of Science, the Charles River, and Boston Harbor. Where Boston Duck Tour leaves at two locations in Boston. Eighty-minute tours depart from the Prudential Center and the Museum of Science, while evening tours, lasting 50 minutes, depart from the New England Aquarium. Super Duck Tour leaves a Gate 1, the main entrance to the Charlestown Navy Yard. When Boston Duck Tour operates from late March to late November and tours depart every 30-60 minutes depending upon the season. Tours begin at 9 a.m. daily. The last tour from the Museum of Science and the Prudential Center leaves an hour before sunset. Super Duck Tour operates from late March to late December. Boston Duck Tour Adults:$32 Students/Seniors:$27 Children ages3-11:$22 Children under 3:$10 Super Duck Tour Adults:$35 Students/Seniors:$31 Children ages3-11:$23 Children under 3:$12 Super Duck Tour also offers a pair of combination packages that include next-day trolley rides and a Charles River Beat Cruise. See our web site for details. More information: To contact Boston Duck Tour,call 617-267DUCK(3825),email Info@bostonducktours.com, or visit www.bostonducktours,com. To contact Super Duck Tour, call 877-34 DUCK (343-8257), email info@ superducktours.com, or visit www.superducktours,com. Question: The author writes this passage mainly to _ . - introduce the duck tours of Boston - encourage more and more people to visit Boston - tell readers some information about Boston - make Boston's tourism known to the world

Ans:introduce the duck tours of Boston
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Ques:Read the following article and select the best answer. Article: While children are dogs---loyal and affectionate --teenagers are cats. It's so easy to be a dog owner. You feed it, train it, and boss it around. It puts its head on your knee and gazes at you as if you were a Rembrandt painting. It bounds indoors with enthusiasm when you call it. Then around age 13, your adoring little puppy turns into a big old cat. When you tell it to come inside, it looks amazed, as if wondering who died and made you emperor. Instead of dogging your doorsteps, it disappears. You won't see it again until it gets hungry--then it pauses on its sprint through the kitchen long enough to turn its nose up at whatever you're serving. when you reach out to ruffle its head, in that old affectionate gesture, it twists away from you, then gives you a blank stare, as if trying to remember where it has seen you before. You, not realizing that the dog is now a cat, think something must be desperately wrong with it. It seems so antisocial, so distant, sort of depressed. It won't go on family outings. Since you are the one who raised it, taught it to fetch and stay and sit on command, you assume that you did something wrong. Flooded with guilt and fear, you redouble your efforts to make your pet behave. Only now you're dealing with a cat, so everything that worked before now produces the opposite of the desired result. Call it, and it runs away. Tell it to sit, and it jumps on the counter. The more you go toward it, wringing your hands, the more it moves away. Put a dish of food near the door, and let it come to you. But remember that a cat needs your help and your affection too. Sit still, and it will come, seeking that warm, comforting lap it has not entirely forgotten. Be there to open the door for it. One day your grown-up child will walk into the kitchen, give you a big kiss and say, "You've been on your feet all day. Let me get those dishes for you. " Then you'll realize your cat is a dog again. Question: When you call a dog, how will it probably react to you? - excitedly - indifferently - angrily - calmly

Ans:
excitedly
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