user: Walking is so simple and convenient that it couldn't possibly count as exercise, right? Wrong. Study after study shows that regular walking can help you lose weight and reduce your risk of heart disease.  The study published in Diabetes Research in Clinical Practice shows that the blood pressure of the overweight men being tested improved and the amount of body fat greatly decreased. That's good news, because walking has now become the most popular fitness activity in the United States. Convenient, simple, and gentle on the joints, walking is perhaps the easiest form of exercise to maintain. According to a survey, four out of five women who start a walking program continue to walk, while half of women who attempt other types of aerobic exercise , such as swimming, drop out during the first few months.  Here are some basics for walking exercise.  Walk at a pace that makes you breathe heavily, but still able to talk.  Your goal, first and foremost, is to walk five days a week, 30 minutes a walk. Do that, and you are getting the base-level amount of exercise that research says should maintain your health and vigor . Walk for as long as you are comfortable the first week, even if it is just to your mailbox and back. Each following week, increase that amount by no more than 10 percent. Start every walk with five minutes of easy-paced walking, about the same pace at which you do shopping, to get your body warmed up. Then, cool down at the end of each walk with another five minutes of easy-paced walking. This allows your heart rate to gradually speed up and slow down. What would be the best title for the passage? A) How to Keep Healthy? B) Walking for Exercise C) Different Ways of Exercise D) Is Walking a Type of Exercise?
B

The first outstanding deaf teacher in America was a Frenchman Laurent Clerc. He and Thomas Hopkins Gallaudet founded America's first school for the deaf. When Laurent Clerc was one year old, he fell into a fire. As a result, he lost both his hearing and his sense of smell. At the age of 12, Laurent entered the Royal Institution for the Deaf in Paris. After he graduated, the school asked him to stay on as an assistant teacher. Meanwhile, in America, Thomas Hopkins Gallaudet was studying to be a minister when he met a young deaf girl, Alice Cogswell. He was upset to learn that there were no schools for the deaf in America. Therefore, in 1815, Gallaudet sailed to London to seek ideas on how to teach deaf people. However, he was unable to get help. He met a French educator of the deaf who invited him to Paris to learn at the Royal Institution for the Deaf. Gallaudet went to the Royal Institution for the Deaf, where Clerc became his Sign Language teacher. The two worked and studied well together. When the time came for Gallaudet to return to America, he asked Clerc to come with him. The two men set sail on June 18, 1816. The voyage across the Atlantic Ocean took 52 days; however, Clerc and Gallaudet put the time to good use. They discussed the school for the deaf which they planned to open. On the long trip, they had many conversations about education and deafness. The year after they arrived, they founded a school for the deaf in Harford, Connecticut. Thomas Hopkins Gallaudet sailed to London because   _  . A) he wanted to study the system of deaf education B) he needed to finish his studies to become a minister C) he wanted to get help from Clerc D) he wanted to find schools for the deaf
A

One day, a train was approaching the small town of Cheekyville. On the train was a young man with a big suitcase. He was called William Warbler, and he looked very common indeed. What made him most unusual, though, was the fact that whenever he needed to communicate he did it by singing opera  . It didn't matter to William whether it was simply a matter of answering a brief greeting, like "good day". He would clear his voice and respond, "Gooood dayyy to youuuuuuuu... toooooo!" No one could get a normal spoken word out of him and no one knew how he made his living. As he lived quite simply, always wearing his same old second-hand suit, people often looked down on him. William had been in Cheekyville for some years, when, one day, word spread round town like wildfire: William had played a role in a very important opera in the nation's capital. Everyone in the capital went to see it, and it was a great success. Everyone in Cheekyville felt it was a surprise. But something more surprising was, when William was being interviewed by reporters, he answered their questions by speaking rather than singing. And he did it with great manners, and with a clear and pleasant voice. From that day, William gave up singing at all hours. Now he did it only during his stage appearances and world tours. Some people suspected why he had changed, but others continued believing him to be somewhat mad. They wouldn't have thought so if they had seen what William kept in his big suitcase. It was a large stone, with a hand-carved   message on it. The message said: "Practice, my boy. Practice every second, for you never know when your chance will come." Little did people realize that he only got the role in the opera because the director had heard William singing while out buying a newspaper. According to the text, William   _  . A) had no idea whether he should continue doing something mad B) was nervous and didn't know how to sing when he was interviewed C) was selling newspapers when the opera director heard him singing D) practiced singing whenever possible before he became famous


assistant: D