Group 1(2017 原创 ) A. 信息归纳Everyone knows that exercise is important. It makes your heart and body strong. But you need to know the following things if you want to do sports scientifically(科学地 )．Get your body ready！Before you do any exercise, make sure to warm up for about five minutes. This is really necessary and important, especially when you suddenly want to play after doing no exercise for a long time. During warming up you should stretch(伸展) all parts of your body. Exercise enough, but not too much. It is best to exercise twice each week. Thirty minutes each time is enough. Try all kinds of things until you find one, two or even three sports that fit you. Exercise at fitness centers. There is a lot of equipment at fitness centers. The equipment will help exercise your arms, legs or other parts of your body to make you fit. Some people buy equipment for their homes. But the equipment is very expensive. Stop playing when you are hurt! If you get hurt when you are doing exercise, don't play again until you are well. Otherwise, it may become worse. Don't get thirsty！Drink a lot of water when you are playing sports because of getting thirsty easily. If your body lacks(缺少 ) too much water, it will be harmful to you. Information Card What makes your heart and body strong 1. Time that you need to warm up before doing exercise 2. The frequency(频率) that is best for you to exercise every week 3. The place where there is a lot of sports equipment 4. The reason why you need to drink a lot of water while playing sports 5. A．【主旨大意】本文是一篇说明文。主要介绍了科学锻炼的方法。1. Exercise【解析】根据第一段第一、二句“Everyone knows that exercise is important. It makes ...
