用方框中所给词的适当形式填空 health; say; have; get; keep; habit; risk; should; be c ause; at Health is very importan t lo us. To slay 1 . , we need some knowledge. Firstly, pay attention to the diet. We should eat lots of fruit and vegetables, because they are rich in fiber( 纤维素 ) and low in fat. As the 2 . goes, “An apple a day 3 . the doctor away.” So fruit is good for health, Don't 4 . a lot of food that has too much fat, such as butter. At the same time, we should eat sweets in proper quantities, 5 . too much sugar is bad for us. Don't drink too much coffee , either. Secondly, exercise is a good way to help us keep from 6 . fat. People who do running regularly are usually healthier than those who don't. Finally, have good living 7 . . We should sleep for about 8 hours 8 . night, and never work too late, Overwork and lack of sleep will in c rease the 9 . of ge t ting ill . What's more, stay away from cigarettes. These are the things we 10 . pay attention to in order to have a strong body.