动名词

动名词是指具有动词和名词特征的非谓语动词。

动词的作用有：

作主语

（1）一般情况下，表示经常性或习惯性发生的动作；

Painting is my hobby.

（2）it作形式主语时，动名词作真正的主语。

It's no use talking without doing.

作表语

对主语内容进行解释说明

My favorite sport is playing football.

作宾语

（1）动名词作宾语，如mind，miss，feel like，escape，admit，imagine，finish，practise，keep，appreciate，avoid，advise。

（2）动名词作宾语，动词不定式作宾语补足语，如advise，allow，permit，encourage。

（3）动名词和动词不定式均可作宾语，如remember，forget，stop，regret，mean，go on，learn，try。

（4）主动表被动如want，need，demand，require，be worth doing sth.

Your shoes need cleaning.

Your shoes need to be cleaned.

This book is well worth reading.

（5）固定搭配，如can't help，feel like，give up，keep on，set about，get down to，prevent/stop/protect/keep sb from，object to，insist on，persist in，put off。

动名词的逻辑主语

动名词的复合结构：名词所有格/形容词性物主代词+动名词

He forgot about my asking him to attend my birthday party.

动名词的时态

完成时表示动作在谓语动词所表示的动作之前

I regret having done such a thing.

动名词语态

被动语态表示动名词的逻辑主语是非谓语动词动作的承受者。

No one can avoid being influenced by advertisements.