现在分词一、基础知识：现在分词（也叫动名词） ：表示主动和进行。基本形式： doing 否定式： not doing被动式： being done 完成式： having done二、具体用法：1.动名词作主语和宾语：（1）把一个动词变成 -ing 形式可以当做名词来用，表示一种经常性、习惯性的动作，可在句中充当主语和宾语。eg: Working with you is a pleasure.I like reading in my free time.（2）可以用 it 做形式主语或形式宾语放在前面，再用动名词做真正的主语或宾语放在后面，这种用法常用于以下句式：① It is/was no use/good doing sth. 做某事是没用的 /没有好处的。eg: It’s no use begging for his mercy.It’s no good smoking too much.② It is/was a waster of time doing sth. 做某事是浪费时间的。eg: It is a waste of time copying others’ homework.③ It is/was worth doing sth. 做某事是值得的。eg: It was worth making the effort.④ There is/was no sense in doing sth. 做某事是没有道理的 /意义的。eg: There is no sense in arguing with your wife.⑤ There is/was no point (in) doing sth. 做某事是没用的 /无意义的。eg: There is no point in getting angry.⑥ There is no shame in doing sth. 做某事是不丢脸的。eg: There is no shame in saying sorry to your friends.⑦ There is no telling⋯无法预言会 ⋯eg: There is no telling what will happen.※注意：动名词作主语时，其前可用名词所有格和形容词性物主代词修饰，即one’s doing sth.作主语。eg: Tom’s being late again made his teacher angry.My going to Beijing University is my parents’ biggest dream.（3）动名词作宾语分为两种情况：动名词后的宾语和介词后的宾语①有些动词后只能接动名词作宾语，常见的有：avoid, advise, allow, admit, appreciate, consider, deny, enjoy, keep, finish, suggest, dislike, delay, risk, escape, imagine, mind, miss, permit, practice, fancy, can’t help, be busy, give up, can’t stand, feel like 等。eg: You must avoid being hurt when crossing the road.②有些动词后即可接动名词也可接不定...
