第二节：语法填空（共10小题；每小题1分, 满分10分）
We eat for many different reasons but not always for the right reason. Most people choose to eat something just  26   the food tastes delicious.   27  , if we choose based   28   taste alone, regardless of nutrition(营养) or healthy eating habits, then gaining weight is inevitable. Changing your eating habits means   29   you need to look at the nutritional value as well as the amount of fat.
Healthy eating habits come from eating foods that are low  30   fat. Learn to read labels so that you can make good decisions; every   31   (package) food product has a label that tells you the nutritional value,   32   number of calories and fat content.
Eating habits usually stay the same as we grow from childhood to adulthood.  33  (fortune), our metabolism（新陈代谢）tends   34   (slow) down as we get older. If you are raised on sugar and high-fat foods, the amount of fat keeps building as you get older   35   the cycle is broken by good eating habits or exercise, and perfectly both.