非谓语动词综合讲练教程
河工
不定式、动名词用作主语
动名词作主语
1。直接作主语：
（1）眼见为实。（2）天天做早操有益于健康。（3）吸烟不是好习惯。
1.Seeing is believing.2.Doing morning exercises every day is good for health3.Smoking is not a good habit
2.用it作形式主语，常与no use,no good,useless, worthwhile连用
（1）广说不做没用（2）做无益后悔没用（3）吸烟太多无益（4）学好英语是值得做
1.It’s no use talking too much without doing anything2.It’s useless crying over the spilt milk.3.It’s no good smoking too much4.It’s worthwhile learning English well.5
不定式作主语
1。直接作主语（1）眼见为实（2）今天早晨做早操对身体无益（3）在这里吸烟很危险
1.To see is ...