1) 动名词与不定式的区别:
    动名词表达的是: 状态,性质,心境,抽象,经常性,已发生的
    不定式表达的是: 目的,结果,原因,具体,一次性,将发生的
    
    2) 接不定式或动名词,意义相同。 
    
    3) 动名词与不定式语义不同的有11 组:
    1  stop to do          stop doing       
    2 forget to do         forget doing
    3  remember to do      remember doing          
    4 regret to do         regret doing
    5  cease to do         cease doing              
    6 try to do            try doing
    7  go on to do         go on doing              
    8 afraid to do         afraid doing 
    9  interested to do    interested doing   
    10 mean to do           mean doing
    11 begin/ start to do   begin/ start doing