非谓语动词 莆田第十二中学不定式一 不定式的用法l It is very dangerous to do it.1.主语 To see is to believe.常用于句型：It is + adj.+ for/of sb + to do stheg: It is brave of you to do that. It is easy for you to do that.表示人物特征的形容词同of后的名词或代词有意义上的主表关系，常与of搭配。Brave, careful, careless, clever, considerate, cruel, foolish, good, honest, kind, nice, right, rude, stupid, silly, thoughtful, wise, wrong表示事物性质的形容词与不定式关系密切，有主表关系，常与for搭配。Easy, hard, heavy, necessary, impossible, possible, important, difficultI still want to be a quiet an
