2017年12月大学英语六级作文常用句式：占百分之几

　　1….to form/comprise/make up/constitute ….percent …占百分之…

　　eg. Women comprise more than 50% of the U.S. population.

　　eg. Females make up only 24% of the illustrations whereas males constitute 76%.

　　2.…to form/comprise/constitute a half/third/fourth of……占…的1/2,1/3,1/4

　　eg. Female illustrions form less than a fourth of the total.

　　3.…account for…percent 占百分之几

　　eg. ……, accounting for approximately 20 percent of…