要加the
例如
Most of the students like to play outside on saturday and sunday.
Most of the books are very good for us.
希望可以帮助到你。
后面可以加the，可以不加，例如：
1.Her work was in eclipse for most of the 20th century.她的作品在20世纪大部分时间里都湮没无闻。
2.I spend most of my working day sitting at a desk.我一天之中大部分工作时间都坐在办公桌旁。
3.Most of us use public transport to get to work.我们大多数人都乘公交车辆上班。
