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Going on a diet

A typical person needs about 1,800 calories per day to stay alive.These calories keep your heart beating and your lungs     51    .They keep your organs operating properly and your brain running.They also keep your body     52    .A.person gains weight because he or she consumes more calories per day than needed.The only     53    to lose fat is to reduce the number of calories that you consume per day.This is the basic principle     54    going on a diet.Unfortunately,diets don't     55    for most people.They do lose weight but then go off the diet and put it back.Building a     56    diet and exercise plan is the key to maintaining a     57    weight.You need to     58    how many calories you need in a day and how many you actually     59    .The next step is to     60    exercise so that you can raise the number of calories you can consume per day. Exercise     61    can show you how many calories different forms of exercise can burn.Burning 250 or 500 calories per day can make a big     62    .You can ride an exercise bike while you are watching TV or you can climb the stairs instead of the elevator.Find an exercise partner.Exercise can be a lot     63    if there is someone to talk to.It's a good idea to wear     64    clothes if you are on a diet.Tight clothing acts as a reminder of what you are trying to     65    .

51 A.running B.breathing C.operating D.working

52 A.warm B.fit C.healthy D.energetic

53 A.principle B.route C.way D.manner

54 A.after B.back C.under D.behind

55 A.function B.work C.act D.avail

56 A.professional B.tailor made C.sensible Dsimple

57 A.consistent B.constant C.middle D.low

58 A.make sure B.find out C.figure out D.achieve

59 A.consume B.take in C.attain D.make use of

60 A.add B.go up C.exceed D.grow

61 A.pictures B.figures C.information D.charts

62 A.sense B.contrast C.difference D.significance

63 A.happier B.easier C.fruitful D.friendly

64 A.firm fitting B.comfortable C.loose D.ordinary

65 A.accomplish B.get to C.achieve D.come true

參考答案：BACDB.CACBA.DCBAA