思路提示：第一段先综述现象：大家都想保持身材要求减肥。第二段介绍多余的体重在身体中形成的原因。第三段提出相应的减肥方法。在最后一段，提出总结性的看法，指出减肥的要诀就是：减少摄入的卡路里，通过运动增加卡路里的消耗量。
参考范文
How to Loe Weight
A beautiful and healthy figure i everyone’ dream. However, not everyone can eaily fulfill thi dream. Overweight people often have to find precie way to loe weight.
For normal healthy people, weight i gained by taking in more calorie than the body need. Therefore, if you want to loe weight, you either have to eat fewer calorie or find way to ue up more calorie you take in. Dieting i probably the mot popular way of loing weight, becaue when on a diet, you are taking fewer calorie.
However, the body need many element in order to tay healthy, and “fad” or tarvation diet are bad becaue they are not nutritiouly balanced. A better way of dieting i to keep track of everything you eat, either by your own careful choice or by buying, for a week at a time, the packaged meal old by ome diet companie. If you do not normally exercie, you hould alo begin enible exercie for your age and lifetyle to help your body ue up urplu calorie.WWw.hAOzuowEn.com
In hort, a combined effort of reducing the calorie you eat and uing up more calorie than uual through exercie hould help you hed off part of your body.