英语作文：why it is unwise to judge a person by their appearance,这句话为什么前后主语不一致呢?前面是“a person”的单数,后面为什么又是“their appearance”的复数?为什么不是对应为“his appearance”;还有”appearance“有应该是可数名词吧?为什么不是“their appearances”呢?六级真题作文题目中的一句话，为什么不是”why it is unwise to judge a person by his appearance.“
问题描述：
英语作文：why it is unwise to judge a person by their appearance,这句话为什么前后主语不一致呢?
前面是“a person”的单数,后面为什么又是“their appearance”的复数?为什么不是对应为“his appearance”;
还有”appearance“有应该是可数名词吧?为什么不是“their appearances”呢?
六级真题作文题目中的一句话，为什么不是
”why it is unwise to judge a person by his appearance.“
答
a person泛指人,后面用their
而appearance不可数,指外貌