动名词和不定式均可以充当句子的主语，可以避免人称如“people，we”频繁做主语的情况。
如：Living in school can save them a great deal of time on the way between home and school everyday
Parents are firmly convinced that, to send their children to kindergartens or nursery schools will have an unfavorable influence on the growth of children
考生可以模仿以上例子，结合被动语态及形式主语，更准确地对其进行使用。
