Directions: Read the following passage. Fill in the numbered blanks by using the information from the passage.
Write NO MORE THAN THREE WORDS for each answer.
Every person needs energy to go about the day and continue to function correctly. To get this energy, you eat, and your body changes the food into the nutrients and energy you need to survive. Your metabolism (新陈代谢) is directly related to how quickly and efficiently your body creates this energy, and if it takes too long, the food gets stored as fat. A slow metabolism will leave you with less energy and more weight than you probably desire.
Your basal metabolic rate (基础代谢率)  is  the amount of energy your body consumes while you're resting. When people say they have a slow metabolism, they mean they have a slow basal metabolic rate. Increasing this number is possible through exercise and muscle building.
According to Metabolism-Advice. com, as your age, your basal metabolic rate will lower as your body begins to deteriorate (衰退). At the age of 30, your body will stop producing the high levels of growth hormone it previously produces. Your body senses that it's done growing at 30, so it uses the resources elsewhere. Unfortunately, that means that your muscle will deteriorate more rapidly than before. While you can’t block age's effects or your metabolism, you can fight against it with regular exercise that builds muscle.
Although muscle deteriorates quicker with age, a lack of exercise will hurt your metabolism at any age. The muscle developed during exercise is vital to maintaining a healthy body with a normal basal metabolic rate. Therefore, while cardiovascular(心血管的)exercise will burn fat during the work out, building muscle will wisely allow your body to use more calories to give you healthy energy instead of stored fat.
Another large factor that determines your basal metabolic rate is your eating habits. Metabolism-Advice. com suggests eating small meals every two to three hours. This will make sure that your metabolism is constantly working throughout your day. Another large factor is how healthily you eat. Taking in the required calories for your amount of daily activity will help keep your metabolism from lowering, but taking in too many calories may lead to fat.
Title: About slow metabolism
I . Definitions
●metabolism—how quickly and efficiently your body creates the energy for it
to function correctly
●basal metabolic rate—the amount of       by your body when you're resting
●slow metabolism-slow basal metabolic rate
II.                 of slow metabolism
●giving a person less energy
●getting a person to _______________
III.               of slow metabolism
●deterioration of your body             exercise
●unhealthy .
●unhealthy diet
IV.                 to slow metabolism
●.____________________ to build muscle
●eating more often but ____________________
●_________________ your body requires for the daily activities