代词,是用来起替代作用的词。其中one,that和it三个代词的用法极易混淆,而且这三个代词在高考试题中经常出现。现以高考试题为例作一简述。(例句中加底线的选项为正确答案)一、不定代词one指物时,指代同一类中不特定的单数名词,一般指代“a/an+单数名词”,其复数形式为ones。例 Pronouns are words used as alternatives. The usage of the three pronouns, one, that and it, is easily confused, and these three pronouns often appear in high-test questions. Take the high exam questions as an example for a brief description. (In the example sentence, the underlined option is the correct answer.) 1. The indefinite pronominal one refers to an indefinite singular noun in the same class, and generally refers to “a/an+singular noun”, and its plural form is ones. example