C
Proper diet and regularexercise seem to be the only methods for losing weight. However, the importanceof water should be added in the process. While medical science has proven thepositive effects of water, most people still do not drink enough each day.
The reason why water is soimportant for weight loss has something to do with metabolism (新陈代谢)of fat. The liver(肝脏)is in charge of thisprocess when it comes to turning stored fat into energy. However, the liver isalso responsible for helping the kidneys (肾脏)that needenough water in order to function properly. The liver has to perform all thefunctions of the kidneys on its own when they are short of water. This meansthe liver doesn't have enough energy to metabolize fat. So, drinking waterallows the kidneys to focus on their job and the liver to focus on its job.
Also, studies have shownthat water can make us feel full when drunk before meals. Without even makingan effort, most people who drink a glass of water before a meal will eat 33%less. This is due in part to the fact that they simply get fuller quickerbecause the water is taking up space. The other reason is that the food willexpand as soon as it hits the water-filled stomach.
Water is important forevery aspect of the health of the human body. By drinking more water andimproving the health of the body, weight loss goals can be achieved withgreater ease.
28. Which of the followingis not mentioned in the passage as a way to lose weight?
A. Regular exercise. B.Drinking water. C. Balanced diet. D. Medical care.
29. The liver has to takeover the job of the kidneys when_.
A. the kidneys are lackingin water
B. there is somethingwrong with the kidneys
C. the liver doesn’ tsupply energy for the kidneys
D. there is no fat for theliver to metabolize
30. Why can we lose weightby drinking water before meals?
A. Because we don’ t feelthirsty any longer.
B. Because we eat muchless than normal.
C. Because the water takesup too much space.
D. Because the foodbecomes larger and larger.
31. Which of the followingwould be the best title for this passage?
A. The Liver Is Importantto the Kidneys.
B. How the DigestiveSystem Works.
C. Water for a HealthyLife and Losing Weight.
D. Several Tips for LosingWeight.