1.必須接動名詞做賓語的動詞
　　要求接動名詞做賓語的動詞：
　　acknowledge, advocate, anticipate, appreciate, avoid, admit, confess, consider, delay, deny, enjoy, escape, excuse, fancy, favor, finish, forgive, imagine, involve, justify, mention, pardon, practice, postpone, recall，recollect，risk, resist, suggest, tolerate。如：
　　I appreciate having been given the opportunity to study abroad two years ago.
　　2.動名詞做介詞短語
　　下列短語中的to是介詞，不是不定式符號：
　　object to, resort to, react to, contribute to, look forward to, be accustomed to, be committed to, be exposed to, be subjected to, be devoted to, be dedicated to, be opposed to, be reconciled to, be contrary to, be (get) used to, come close to, get down to, give oneself up to, prefer…to, see to, set to, take to, in addition to, with regard to, with a view to, on the way to