动词-ing 形式作主语和宾语一、动名词的形式主动形式被动形式一般式doingbeing done完成式having donehaving been done二、v-ing 作主语的用法动名词作主语时，句子有三种形式：1. v-ing 直接置于句首主语的位置上。作主语表示抽象的或泛指的动作, 谓语动词用单数。2. 动词-ing 形式作主语时常后置, 用 it 作形式主语，用形容词或名词作表语。常见的作表语的名词或短语有：useful, useless, no use, no good, fun, hard work, a hard / difficult job, a wonder, a waste of time 等。如：It is/was no good/use doing 做…是没用的It is/was worth/worthwhile doing 做…是值得的It is/was hardly/scarcely worth doing 做…不值得It is/was a waste of time doing 做…是浪费时间的3. “There is + no”后可以用动词-ing 形式作主语，表示“没法……”，=“It is impossible to do… ”。三、v-ing 作宾语的用法1. 某些动词后只能用动名词作宾语，常见的此类动词有 : admit, escape, appreciate, excuse, stand, advise, allow, permit, avoid, consider, enjoy, finish, imagine, include, keep, mind, risk, miss, delay(延误), practise, suggest 等。★★ 常跟动词 ing 作宾语的动词歌诀:考虑建议盼原谅，consider, suggest / advise, look forward to, excuse, pardon 承认推迟没得想，admit, delay / put off, fancy 避免错过继续练，avoid, miss, keep /keep on, practise 否认完成停能赏，deny, finish, stop, enjoy / appreciate 不禁介意准逃亡，can’t help, mind, allow/ permit, escape不准冒险凭想象。forbid, risk, imagine 42. 有些短语如:can’t stand, give up, put off, keep on, set about, succeed in, insist on, feel like, be/get used to, devote…to…, look forward to, pay attention to, end up, lead to, think of / about, be afraid of，be busy (in)，be fond of，be good at,be delighted in，be interested in，be proud of，be tired of，be astonished at，be surprised at，be terrified at，apologize (to sb.) for, excuse／forgive／praise／thank sb. for, prevent／stop／keep sb from, hav...
