不定代词是不指明代替任何特定名词或形容词的代词,英语中不定代词有:some(something,somebody,someone),any(anything,anybody,anyone), no(nothing,nobody,no one), every(everything,everybody,everyone),all,each,both,much,many,(a)little,(a)few,other(s),another,none,one,either, neither等。 不定代词大都可以代替名词和形容词,在句中作主语、宾语、表语和定语。 1.作主语 both of them are teachers.他们两人都是教师。 2.作宾语 i know nothing about this person.我对这个人一无所知。 3.作表语 this book is too much for a child.这本书对一个小孩来说太难了。 4.作定语 there is a little water in the glass.玻璃杯里有一些水。