【文章內(nèi)容簡介】 f the danger in the subway B. show us how to save people in the subway C. tell us about a subway rescue D. report a traffic accidentBDon39。t you just love ice skating every winter? I am sure, that since winter is approaching, your skates are set to e out, just waiting to be used. Impress your friends with your new trick on how to ice skate backwards with the help of these tips. Skating backwards on ice is a bit difficult but once you master the basic, there39。s nothing like it. Follow the steps given below and you will be able to skate backwards in no time.Stand StraightThe first thing that you need to do is, stand straight. If you feel that you are falling backwards, then just put your chin up and slightly bend your knees. Don39。t worry。 this happens to all. Confidence is What You NeedThe most important step while learning how to skate backwards, is having enough confidence in yourself and in what you are doing. How can you achieve this? By practice. Just practice rolling backwards down a gentle slop every single day or just by pushing off from a wall or something of that sort. But before you do that, make sure that the place where you are practicing is free from any kind of debris（碎片）because otherwise, you could land up in the hospital due to some accident. While going backwards, just get used to the feeling of moving backwards. One of the important ice skating tips and techniques is that if you feel that you are losing your balance, then scissor（做剪式運動）your skates．Keep practicing this till you are confident about it.Maintain SpeedConfident now? Great! Now the next step is to maintain your speed. While rolling in a straight line with one skate, with the other try sculling（滑漿）, that is, keep pushing yourself backwards with an outwards stroke（滑動）. Now bring the skate which you were using to scull, and then again, repeat the same process. Make sure that you put most of your weight on the skate which is moving straight and not the one with which you are sculling．Now, try the same thing using the other foot. Again keep doing this till you are confident enough. Increase Your Speed NowOnce you are confident that you can scull with either foot, the next thing that you have to A） is increase your speed. Try some of your own tricks now. Scull with either foot or with both at the same time.Scull and Be AwareWhile you keep one foot straight, keep sculling with the other. You can do that simultaneously（同時，一起） with both feet. Concentrate on what you are doing but don39。t get so involved that you don39。t see where you are going. If you are not watching your back, you might just bang against something or someone.（ ）41. According to the text confidence es from ______ . A. high speed B. strict coaches C. constant exercise D. good techniques（ ）42. Which is the right order of ice skating backwards? a. Increasing your speed． b. Being able to scull with one foot． c. Being about to stand straight． d. Trying some different tricks． A. c→a→d→b B. c→b→d→a C. a→c→b→d D. c→b→a→d（ ）43. In order to keep balance when skating backwards you should _____ . A. skate in a scissor gesture B. use both your feet to scull C. skate forward first and then backward D. put most of your weight on the skate with which you are sculling（ ）44. In the last paragraph the author mainly wants to express ______ . A. skating and keeping cautious are both important B. one must be brave to learn to ice skate backwards C. it’s difficult to concentrate when ice skating backwards D. it39。s a mon thing to hit someone when iceskating backwards（ ）45. The purpose of the text is _____ . A. to pare different ways of ice skating backwards B. to introduce the culture of iceskating backwards C. to explain advantages of ice skating backwards D. to offer some advice on ice skating backwardsCResearchers found that people bee happier and experience less worry after they reach the age of 50. In fact, they say by the age of 85, people are happier with their life than they were when they were 18 years old. The findings came from a survey of more than 340,000 adults in the United States. The Gallup（民意調(diào)查） Organization questioned them by telephone in 2008. At that time, the people were between the ages of 18 and 85. The researchers asked questions about emotions like happiness, sadness and worry. They also asked about mental or emotional stress.Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study. His team found that levels of stress were highest among