2024年安徽成人高考专升本英语不定式语法知识整理(4)

　　知识点：不定式的否定形式：否定形式是在不定式的标志to前边加not a

　　例:

　　1)that new information to anyone else but the sergeant.

　　[A]They asked him not to give

　　[B]They asked him to don't give

　　[C]They asked him no give

　　[D]They asked him to no give

　　2)Please remember lights on in the future.

　　[A]don't leave

　　[B]not to leave

　　[C]not leaving

　　[D]don't to leave

　　介词except和but(作“只有……，只能……”讲时)跟不定式结构(but与不带to的不定式连用)

　　He seldom goes back home except to ask for money from his parents.

　　He did nothing there except watch TV for the whole night.(不带to的不定式)

　　I had no choice but to stay in bed.

　　Last night I did nothing but prepare my lessons.

　　例:

　　1)Lots of empty bottles were found under the old man's bed.He must have done nothing but.

　　[A]drink

　　[B]to drink

　　[C]drinking

　　[D]drunk