Going on a Diet

共享题干题【2012年真题】（一） Going on a Diet
    A typical person needs about l，800 calories per day to stay alive.These calories keep your heart___________ (51)and your lungs breathing.They keep your organs operating___________ (52)and，your brain runnin9.They also keep your body warm.A person___________ (53)weight because he or she consumes more calories per day than needed.The only way to lose fat is to ___________ (54)the number of calories that you consume per day.This is the basic___________ (55)behind going on a diet. Unfortunately，diets don’t___________ (56)for most people.They do lose weight but then go___________ (57)the diet and put it back.Building a sensible diet and exercise plan is the key to___________ (58) a consistent weight.You need to figure out how many calories you need in a day and how many you___________ (59)take in.The next step is to add exercise so that you can___________ (60)the number of calories you can consume per day. Exercise charts can show you how many calories different ___________ (61)of exercise can burn. Burning 250 or 500 calories per day can___________ (62)a big difference.You can ride an exercise bike while you are watching TV or you can ___________ (63)the stairs instead of the elevator.Find an exercise___________ (64).Exercise can be a lot easier if there is someone to talk to.It’s a good idea to wear firm— fitting clothes if you are on a diet.___________ (65)clothing acts as a reminder of what you are trying to accomplish.